From ea065a3454a99f411cee1fd350a4a3b475ca90ee Mon Sep 17 00:00:00 2001 From: Mark Bundschuh Date: Mon, 10 Feb 2025 00:23:25 -0500 Subject: [PATCH 1/3] stuff --- decoder/build.zig | 1 + decoder/lib/crypto.zig | 6 +- decoder/lib/subscription.zig | 171 ++++++++++++----------- decoder/subscribe.zig | 1 + design/ectf25_design/encoder.py | 4 +- design/ectf25_design/gen_secrets.py | 2 +- design/ectf25_design/gen_subscription.py | 4 +- docs/design.pdf | Bin 327973 -> 328111 bytes docs/design.typ | 6 +- docs/pages/page-6.svg | 58 ++++---- docs/pages/page-9.svg | 9 +- 11 files changed, 137 insertions(+), 125 deletions(-) diff --git a/decoder/build.zig b/decoder/build.zig index 83330ad..4130ab3 100644 --- a/decoder/build.zig +++ b/decoder/build.zig @@ -18,6 +18,7 @@ pub fn build(b: *std.Build) !void { .target = target, .name = "main", .optimize = .ReleaseSafe, + .link_libc = true, }); const unit_tests = b.addTest(.{ diff --git a/decoder/lib/crypto.zig b/decoder/lib/crypto.zig index a79ce68..9aaa727 100644 --- a/decoder/lib/crypto.zig +++ b/decoder/lib/crypto.zig @@ -1,8 +1,8 @@ const std = @import("std"); -pub fn decrypt(data: []u8, key: [16]u8) void { +pub fn decrypt(data: []u8, key: [24]u8) void { var extended_key: [32]u8 = undefined; - @memcpy(extended_key[0..16], key[0..16]); - @memcpy(extended_key[16..32], key[0..16]); + @memcpy(extended_key[0..24], key[0..24]); + @memcpy(extended_key[24..32], key[0..8]); std.crypto.stream.salsa.Salsa20.xor(data, data, 0, extended_key, std.mem.zeroes([8]u8)); } diff --git a/decoder/lib/subscription.zig b/decoder/lib/subscription.zig index 1e23b8c..a5a7110 100644 --- a/decoder/lib/subscription.zig +++ b/decoder/lib/subscription.zig @@ -11,12 +11,12 @@ pub const Subscription = struct { pub const Bytes = extern struct { start: u64, end: u64, - root_hashes: [126][16]u8 = undefined, + root_hashes: [126][24]u8 = undefined, }; serialized: Bytes, roots: [126]RootPosition = undefined, - cached_hashes: [65][16]u8 = undefined, + cached_hashes: [][24]u8 = undefined, root_index: isize = -1, last_timestamp: u64 = 0, @@ -31,9 +31,10 @@ pub const Subscription = struct { var self: Subscription = .{ .serialized = .{ .start = start, .end = end }, + .cached_hashes = std.heap.c_allocator.alloc([24]u8, 65) catch @panic("OOM"), }; - var iter = std.mem.window(u8, root_hash_bytes, 16, 16); + var iter = std.mem.window(u8, root_hash_bytes, 24, 24); var i: usize = 0; while (iter.next()) |hash| { @memcpy(&self.serialized.root_hashes[i], hash); @@ -45,6 +46,10 @@ pub const Subscription = struct { return self; } + pub fn deinit(self: *Subscription) void { + std.heap.c_allocator.free(self.cached_hashes); + } + fn calculateRootPositions(self: *Subscription) void { if (self.serialized.start == 0 and self.serialized.end == std.math.maxInt(u64)) { self.roots[0] = RootPosition{ .offset = 0, .power = 64 }; @@ -64,7 +69,7 @@ pub const Subscription = struct { } } - pub fn getKey(self: *Subscription, timestamp: u64) [16]u8 { + pub fn getKey(self: *Subscription, timestamp: u64) [24]u8 { if (timestamp > self.serialized.end) @panic("Timestamp past end of subscription"); if (timestamp < self.last_timestamp) @panic("Decreasing timestamp"); @@ -116,85 +121,85 @@ test "ctz" { try std.testing.expectEqual(64, @ctz(@as(u64, 0))); } -test "getKey" { - const root_hashes: []const [16]u8 = &[_][16]u8{ - .{ 171, 101, 175, 230, 138, 33, 142, 169, 75, 189, 158, 179, 34, 186, 218, 3 }, - .{ 40, 11, 189, 239, 152, 148, 157, 195, 126, 141, 227, 76, 145, 86, 166, 241 }, - .{ 138, 166, 254, 112, 191, 217, 169, 183, 225, 118, 180, 55, 26, 151, 176, 39 }, - .{ 147, 254, 134, 61, 116, 97, 34, 122, 101, 149, 153, 111, 55, 78, 71, 232 }, - }; - - var subscription = Subscription.init(1, 6, std.mem.sliceAsBytes(root_hashes)); - try std.testing.expectEqualDeep(&[_]RootPosition{ - .{ .offset = 1, .power = 0 }, - .{ .offset = 2, .power = 1 }, - .{ .offset = 4, .power = 1 }, - .{ .offset = 6, .power = 0 }, - }, subscription.roots[0..4]); - - { - const key = subscription.getKey(2); - try std.testing.expectEqual(bytes("1ecf7fc4dd1bda2a593fb7f7d0959b1f"), key); - - var frame_data = bytes("b669a858d2f9c5d3b2c5a85ca98c46bc3557740a9260ce921523a352fdc71c5779a741c2de4b3fe94ecb8cbf15804e609acf2be1056da0c1cb5dfa8bdbb99486"); - crypto.decrypt(&frame_data, key); - try std.testing.expectEqualStrings("Hello world!----------------------------------------------------", &frame_data); - } - - try std.testing.expectEqual(bytes("96aa268a5e4708dc843dc4e21314ef45"), subscription.getKey(3)); - try std.testing.expectEqual(bytes("b494fb2651d4beba877f96fa6f6049ee"), subscription.getKey(4)); -} - -test "getKey largest range" { - const root_hashes: []const [16]u8 = &[_][16]u8{ - .{ 82, 135, 43, 160, 152, 200, 145, 46, 38, 149, 220, 27, 181, 94, 206, 127 }, - }; - - var subscription = Subscription.init(0, std.math.maxInt(u64), std.mem.sliceAsBytes(root_hashes)); - try std.testing.expectEqualDeep(&[_]RootPosition{ - .{ .offset = 0, .power = 64 }, - }, subscription.roots[0..1]); - - try std.testing.expectEqual(bytes("f5e67ba16ef73c2abfba04ec9c69f6cb"), subscription.getKey(0)); - try std.testing.expectEqual(bytes("ab65afe68a218ea94bbd9eb322bada03"), subscription.getKey(1)); - try std.testing.expectEqual(bytes("7b85341af0919ca152ea5ccb8119997d"), subscription.getKey(150)); - try std.testing.expectEqual(bytes("50433b2d0ab5d7859c88c646f2379ffd"), subscription.getKey(0xdeadbeefcafebabe)); - - var frame_data = bytes("dc2128afcbec2c89326d84ce6374b02e0e863031e9618361824648b209c8c44caff4d68f0654ec7e1de087ccfdbd20814a62beae2b6d899104b926b06bc03dae"); - crypto.decrypt(&frame_data, subscription.getKey(0xdeadbeefcafebabe)); - try std.testing.expectEqualStrings("Hola Mundo------------------------------------------------------", &frame_data); -} - -test "getKey single value range" { - const root_hashes: []const [16]u8 = &[_][16]u8{ - .{ 180, 148, 251, 38, 81, 212, 190, 186, 135, 127, 150, 250, 111, 96, 73, 238 }, - }; - - var subscription = Subscription.init(4, 4, std.mem.sliceAsBytes(root_hashes)); - try std.testing.expectEqualDeep(&[_]RootPosition{ - .{ .offset = 4, .power = 0 }, - }, subscription.roots[0..1]); - - const key = subscription.getKey(4); - try std.testing.expectEqual(bytes("b494fb2651d4beba877f96fa6f6049ee"), key); - - var frame_data = bytes("87c544979d7df0237bb5e0791e08e1288cb6bf3090cba085d1c9a37f265fadbcb613587ed4c6e09f49b8d96a0a18c1d5d3c96ebc9c18377b9f59e769e3a6c4f8"); - crypto.decrypt(&frame_data, key); - try std.testing.expectEqualStrings("Hallo Welt------------------------------------------------------", &frame_data); -} - -test "getKey most suboptimal" { - const root_hashes: []const [16]u8 = &[_][16]u8{ .{ 171, 101, 175, 230, 138, 33, 142, 169, 75, 189, 158, 179, 34, 186, 218, 3 }, .{ 40, 11, 189, 239, 152, 148, 157, 195, 126, 141, 227, 76, 145, 86, 166, 241 }, .{ 5, 177, 195, 245, 213, 145, 29, 122, 70, 200, 246, 81, 248, 167, 147, 64 }, .{ 135, 0, 34, 57, 233, 90, 196, 89, 130, 172, 80, 109, 57, 101, 140, 41 }, .{ 27, 126, 213, 90, 191, 60, 76, 161, 2, 201, 226, 113, 175, 32, 84, 77 }, .{ 40, 147, 106, 248, 12, 82, 253, 129, 162, 154, 146, 44, 215, 4, 113, 29 }, .{ 68, 193, 76, 43, 215, 241, 35, 214, 60, 251, 96, 33, 144, 131, 150, 173 }, .{ 1, 128, 199, 64, 208, 78, 41, 108, 239, 208, 135, 162, 89, 117, 100, 161 }, .{ 158, 220, 205, 237, 83, 48, 90, 81, 13, 202, 190, 132, 158, 215, 147, 151 }, .{ 152, 99, 85, 222, 38, 225, 68, 166, 19, 118, 97, 158, 255, 140, 143, 243 }, .{ 218, 137, 203, 226, 139, 74, 72, 54, 1, 228, 215, 100, 8, 106, 199, 157 }, .{ 201, 130, 175, 201, 183, 116, 151, 110, 145, 91, 105, 47, 99, 210, 178, 35 }, .{ 227, 37, 43, 36, 182, 122, 101, 160, 5, 232, 38, 186, 197, 120, 49, 30 }, .{ 12, 0, 98, 177, 205, 237, 153, 88, 74, 22, 122, 35, 169, 18, 234, 33 }, .{ 16, 2, 184, 212, 185, 139, 131, 10, 76, 176, 95, 193, 95, 164, 96, 0 }, .{ 239, 160, 157, 130, 230, 140, 221, 208, 220, 26, 175, 57, 245, 248, 164, 10 }, .{ 37, 255, 103, 247, 118, 85, 169, 149, 142, 55, 224, 172, 86, 2, 152, 244 }, .{ 158, 3, 32, 215, 196, 212, 8, 226, 70, 252, 189, 162, 62, 201, 21, 250 }, .{ 125, 60, 122, 94, 62, 89, 69, 190, 125, 239, 15, 157, 221, 213, 179, 39 }, .{ 95, 77, 36, 115, 241, 83, 217, 187, 172, 65, 17, 78, 3, 146, 47, 90 }, .{ 79, 95, 110, 117, 169, 101, 225, 12, 123, 91, 39, 142, 255, 211, 55, 191 }, .{ 56, 251, 114, 15, 236, 4, 96, 247, 144, 45, 20, 33, 73, 94, 106, 40 }, .{ 155, 18, 159, 5, 31, 116, 125, 43, 220, 197, 248, 236, 97, 14, 152, 68 }, .{ 93, 22, 11, 0, 72, 238, 74, 109, 231, 199, 210, 85, 183, 128, 55, 79 }, .{ 34, 252, 212, 10, 31, 109, 219, 217, 109, 253, 21, 178, 189, 255, 60, 221 }, .{ 211, 191, 239, 17, 113, 225, 168, 254, 37, 51, 19, 56, 79, 128, 112, 71 }, .{ 99, 56, 13, 231, 205, 208, 182, 175, 83, 58, 184, 71, 154, 134, 139, 253 }, .{ 191, 215, 211, 125, 207, 240, 24, 158, 28, 155, 167, 236, 251, 253, 151, 1 }, .{ 155, 40, 116, 191, 209, 198, 38, 153, 35, 17, 130, 208, 215, 124, 216, 80 }, .{ 213, 160, 226, 88, 180, 107, 170, 183, 126, 254, 232, 26, 134, 77, 231, 136 }, .{ 159, 34, 18, 138, 29, 195, 20, 78, 185, 72, 183, 25, 222, 216, 1, 137 }, .{ 55, 46, 21, 127, 217, 152, 127, 118, 90, 105, 247, 120, 162, 126, 161, 98 }, .{ 77, 45, 148, 76, 48, 34, 87, 80, 5, 249, 226, 97, 96, 126, 20, 125 }, .{ 22, 120, 157, 172, 208, 54, 120, 135, 132, 245, 168, 143, 30, 25, 57, 163 }, .{ 226, 58, 158, 15, 47, 92, 248, 143, 39, 243, 80, 149, 93, 186, 130, 25 }, .{ 243, 43, 111, 5, 207, 185, 204, 174, 24, 52, 253, 57, 209, 196, 98, 22 }, .{ 254, 145, 153, 51, 110, 57, 49, 25, 212, 4, 50, 59, 204, 119, 112, 76 }, .{ 27, 220, 114, 73, 165, 56, 134, 143, 210, 221, 94, 253, 55, 77, 66, 121 }, .{ 116, 233, 232, 166, 8, 172, 31, 207, 153, 40, 78, 215, 46, 96, 64, 177 }, .{ 72, 134, 39, 43, 151, 231, 243, 233, 218, 85, 62, 150, 158, 248, 96, 243 }, .{ 205, 130, 40, 111, 14, 106, 106, 231, 40, 94, 38, 216, 122, 229, 46, 218 }, .{ 48, 197, 93, 118, 246, 100, 120, 64, 96, 150, 162, 214, 42, 240, 192, 107 }, .{ 248, 216, 174, 118, 229, 87, 100, 230, 117, 43, 239, 185, 2, 168, 156, 106 }, .{ 138, 102, 125, 199, 42, 91, 174, 47, 131, 24, 185, 106, 97, 66, 222, 189 }, .{ 30, 203, 51, 151, 255, 121, 228, 128, 2, 43, 176, 22, 78, 35, 17, 130 }, .{ 207, 113, 129, 69, 203, 147, 109, 188, 244, 83, 251, 33, 133, 242, 220, 69 }, .{ 232, 119, 192, 236, 253, 230, 9, 195, 123, 39, 135, 205, 77, 85, 222, 131 }, .{ 229, 199, 41, 20, 101, 157, 154, 116, 180, 119, 76, 135, 112, 192, 214, 168 }, .{ 216, 165, 171, 165, 44, 209, 170, 17, 239, 60, 104, 40, 240, 109, 104, 78 }, .{ 196, 92, 150, 190, 129, 232, 224, 167, 3, 166, 122, 241, 19, 155, 238, 163 }, .{ 166, 108, 135, 90, 125, 108, 34, 231, 17, 201, 178, 126, 148, 18, 147, 37 }, .{ 60, 137, 194, 191, 131, 91, 46, 8, 85, 57, 139, 43, 190, 71, 125, 11 }, .{ 191, 80, 210, 78, 196, 154, 87, 164, 59, 19, 111, 150, 222, 62, 249, 114 }, .{ 56, 137, 158, 238, 197, 142, 38, 225, 196, 120, 238, 199, 123, 239, 48, 228 }, .{ 177, 111, 132, 150, 102, 107, 5, 98, 119, 35, 61, 60, 138, 142, 144, 130 }, .{ 166, 18, 232, 50, 169, 92, 63, 113, 193, 174, 98, 183, 34, 202, 248, 122 }, .{ 73, 22, 52, 241, 149, 202, 125, 85, 119, 228, 31, 58, 52, 130, 220, 236 }, .{ 85, 20, 148, 17, 178, 16, 143, 31, 149, 116, 154, 95, 113, 75, 106, 23 }, .{ 203, 205, 9, 153, 124, 90, 214, 253, 36, 220, 146, 177, 213, 38, 7, 221 }, .{ 195, 71, 190, 185, 130, 0, 53, 29, 109, 15, 98, 209, 125, 32, 187, 244 }, .{ 91, 216, 193, 234, 41, 81, 96, 44, 174, 65, 6, 18, 89, 122, 23, 23 }, .{ 234, 194, 223, 213, 205, 242, 74, 123, 33, 174, 76, 123, 119, 88, 233, 89 }, .{ 166, 196, 129, 219, 86, 43, 224, 95, 27, 148, 179, 135, 224, 77, 153, 239 }, .{ 145, 123, 214, 136, 152, 33, 17, 187, 240, 221, 45, 44, 122, 245, 85, 122 }, .{ 227, 89, 124, 3, 189, 228, 95, 53, 176, 118, 136, 32, 9, 253, 92, 7 }, .{ 233, 145, 171, 47, 119, 101, 40, 71, 214, 15, 107, 39, 172, 176, 226, 90 }, .{ 170, 119, 38, 156, 29, 66, 192, 47, 170, 69, 223, 188, 188, 27, 70, 34 }, .{ 77, 11, 23, 228, 173, 178, 236, 192, 80, 223, 110, 9, 188, 114, 125, 160 }, .{ 179, 197, 124, 22, 225, 54, 5, 216, 143, 58, 159, 63, 58, 88, 10, 197 }, .{ 46, 254, 132, 223, 27, 60, 121, 78, 165, 77, 182, 63, 169, 102, 151, 84 }, .{ 114, 202, 94, 75, 229, 58, 0, 185, 177, 11, 142, 38, 75, 16, 72, 241 }, .{ 235, 93, 246, 164, 150, 218, 195, 75, 2, 43, 120, 254, 202, 15, 55, 181 }, .{ 141, 132, 51, 149, 169, 2, 51, 254, 180, 26, 221, 218, 180, 253, 83, 55 }, .{ 186, 222, 114, 204, 231, 126, 161, 13, 110, 229, 148, 191, 98, 15, 164, 218 }, .{ 155, 235, 59, 193, 219, 185, 243, 212, 186, 84, 237, 45, 136, 141, 94, 238 }, .{ 234, 165, 58, 179, 228, 205, 186, 187, 248, 207, 79, 125, 191, 50, 229, 63 }, .{ 33, 95, 20, 15, 227, 199, 36, 2, 171, 161, 194, 243, 63, 188, 89, 39 }, .{ 93, 232, 105, 133, 51, 46, 193, 225, 122, 134, 68, 221, 73, 144, 184, 123 }, .{ 78, 209, 110, 31, 174, 234, 98, 29, 191, 101, 211, 75, 177, 245, 204, 174 }, .{ 158, 212, 123, 187, 163, 160, 187, 168, 135, 165, 20, 99, 154, 15, 85, 111 }, .{ 56, 148, 71, 122, 107, 77, 27, 173, 44, 140, 2, 14, 159, 247, 47, 110 }, .{ 117, 249, 231, 238, 209, 161, 34, 185, 173, 58, 96, 211, 236, 119, 163, 185 }, .{ 186, 105, 165, 164, 240, 116, 147, 236, 30, 12, 100, 9, 207, 80, 252, 70 }, .{ 34, 195, 162, 141, 60, 155, 24, 68, 68, 202, 216, 122, 197, 152, 222, 171 }, .{ 187, 107, 143, 149, 230, 139, 28, 201, 211, 237, 179, 121, 169, 236, 177, 86 }, .{ 250, 97, 255, 38, 108, 5, 96, 95, 17, 130, 247, 196, 207, 57, 113, 43 }, .{ 73, 23, 249, 197, 219, 243, 106, 63, 205, 222, 172, 199, 217, 34, 178, 37 }, .{ 60, 151, 18, 91, 94, 64, 14, 180, 24, 142, 241, 63, 70, 145, 199, 143 }, .{ 132, 216, 108, 113, 193, 121, 20, 191, 129, 233, 3, 188, 169, 32, 40, 134 }, .{ 33, 54, 157, 213, 141, 137, 64, 47, 47, 106, 38, 174, 94, 11, 248, 65 }, .{ 165, 76, 166, 254, 245, 35, 151, 30, 72, 73, 161, 145, 41, 212, 76, 161 }, .{ 106, 71, 87, 129, 16, 157, 125, 217, 119, 27, 92, 35, 86, 207, 32, 50 }, .{ 222, 86, 208, 75, 171, 167, 111, 233, 175, 110, 224, 164, 33, 116, 183, 226 }, .{ 234, 172, 110, 152, 92, 115, 244, 175, 75, 144, 227, 9, 4, 56, 245, 33 }, .{ 80, 88, 208, 10, 163, 177, 104, 19, 139, 69, 49, 120, 132, 179, 214, 139 }, .{ 233, 100, 154, 235, 213, 206, 54, 209, 65, 181, 22, 204, 173, 128, 167, 127 }, .{ 115, 151, 161, 182, 181, 232, 91, 69, 76, 189, 76, 243, 93, 150, 4, 160 }, .{ 117, 115, 77, 183, 16, 153, 143, 122, 59, 24, 192, 162, 252, 34, 240, 109 }, .{ 176, 118, 218, 110, 33, 14, 8, 163, 252, 105, 61, 20, 32, 114, 247, 65 }, .{ 230, 25, 161, 223, 173, 107, 212, 131, 233, 89, 95, 52, 137, 143, 164, 114 }, .{ 196, 11, 148, 18, 253, 59, 48, 120, 70, 73, 180, 131, 201, 39, 242, 59 }, .{ 223, 179, 182, 62, 43, 198, 139, 72, 239, 175, 38, 23, 105, 80, 232, 192 }, .{ 64, 250, 175, 123, 218, 253, 218, 107, 34, 109, 222, 38, 56, 130, 52, 36 }, .{ 24, 19, 74, 82, 95, 191, 48, 87, 183, 116, 221, 67, 92, 220, 88, 86 }, .{ 34, 150, 117, 174, 241, 56, 237, 235, 247, 231, 211, 165, 57, 40, 27, 5 }, .{ 10, 220, 233, 61, 141, 167, 118, 43, 211, 142, 188, 189, 146, 254, 149, 15 }, .{ 107, 135, 236, 3, 185, 17, 48, 66, 59, 120, 55, 78, 99, 193, 234, 123 }, .{ 65, 159, 53, 249, 8, 245, 252, 91, 238, 162, 218, 172, 5, 85, 226, 126 }, .{ 239, 174, 12, 32, 114, 165, 225, 24, 148, 141, 37, 139, 55, 112, 101, 14 }, .{ 93, 218, 130, 92, 129, 82, 110, 253, 94, 150, 37, 71, 28, 136, 109, 25 }, .{ 220, 248, 132, 193, 128, 161, 28, 182, 137, 176, 37, 64, 178, 175, 100, 17 }, .{ 222, 28, 206, 11, 113, 156, 200, 183, 16, 59, 181, 249, 128, 128, 78, 239 }, .{ 246, 143, 203, 255, 240, 134, 218, 5, 102, 157, 232, 137, 202, 92, 222, 92 }, .{ 54, 43, 61, 121, 95, 80, 181, 111, 62, 16, 62, 221, 89, 171, 85, 124 }, .{ 104, 124, 202, 164, 6, 127, 8, 212, 211, 111, 75, 184, 104, 123, 153, 141 }, .{ 43, 104, 217, 44, 180, 82, 44, 133, 169, 112, 44, 119, 59, 111, 40, 211 }, .{ 230, 238, 132, 179, 143, 0, 149, 10, 33, 28, 213, 144, 79, 242, 40, 184 }, .{ 229, 171, 198, 222, 79, 56, 22, 153, 160, 51, 147, 166, 61, 229, 243, 17 }, .{ 62, 189, 44, 195, 110, 41, 83, 109, 0, 177, 246, 190, 13, 239, 53, 78 }, .{ 1, 69, 72, 196, 194, 222, 95, 141, 131, 64, 0, 2, 96, 22, 23, 149 }, .{ 134, 131, 127, 87, 238, 170, 193, 138, 182, 245, 213, 9, 85, 156, 111, 31 }, .{ 128, 81, 113, 54, 175, 15, 162, 45, 254, 252, 10, 247, 213, 179, 85, 49 }, .{ 38, 180, 181, 65, 187, 123, 103, 26, 78, 179, 64, 111, 200, 3, 198, 27 }, .{ 230, 58, 110, 58, 168, 130, 33, 115, 79, 65, 113, 176, 67, 177, 144, 97 }, .{ 253, 158, 179, 44, 135, 188, 73, 51, 230, 44, 78, 129, 172, 41, 132, 250 }, .{ 202, 210, 242, 76, 120, 79, 139, 180, 96, 145, 169, 33, 43, 132, 9, 75 } }; - var subscription = Subscription.init(1, std.math.maxInt(u64) - 1, std.mem.sliceAsBytes(root_hashes)); - try std.testing.expectEqual(@as(usize, 126), subscription.roots.len); - - const key = subscription.getKey(42069); - try std.testing.expectEqual(bytes("7d4812bb046d7c7c30cf7d4380574a6c"), key); - - var frame_data = bytes("d993a63f87a36ba26e73c3a727f07f2efc4fac720c9f5f42f3993c01a950d4b719c8cd5d3d606b11fef1417deea1499e03ca83ae0f9fb4e1f290e6e3865bdab9"); - crypto.decrypt(&frame_data, key); - try std.testing.expectEqualStrings("Bonjour le monde------------------------------------------------", &frame_data); -} +// test "getKey" { +// const root_hashes: []const [16]u8 = &[_][16]u8{ +// .{ 171, 101, 175, 230, 138, 33, 142, 169, 75, 189, 158, 179, 34, 186, 218, 3 }, +// .{ 40, 11, 189, 239, 152, 148, 157, 195, 126, 141, 227, 76, 145, 86, 166, 241 }, +// .{ 138, 166, 254, 112, 191, 217, 169, 183, 225, 118, 180, 55, 26, 151, 176, 39 }, +// .{ 147, 254, 134, 61, 116, 97, 34, 122, 101, 149, 153, 111, 55, 78, 71, 232 }, +// }; + +// var subscription = Subscription.init(1, 6, std.mem.sliceAsBytes(root_hashes)); +// try std.testing.expectEqualDeep(&[_]RootPosition{ +// .{ .offset = 1, .power = 0 }, +// .{ .offset = 2, .power = 1 }, +// .{ .offset = 4, .power = 1 }, +// .{ .offset = 6, .power = 0 }, +// }, subscription.roots[0..4]); + +// { +// const key = subscription.getKey(2); +// try std.testing.expectEqual(bytes("1ecf7fc4dd1bda2a593fb7f7d0959b1f"), key); + +// var frame_data = bytes("b669a858d2f9c5d3b2c5a85ca98c46bc3557740a9260ce921523a352fdc71c5779a741c2de4b3fe94ecb8cbf15804e609acf2be1056da0c1cb5dfa8bdbb99486"); +// crypto.decrypt(&frame_data, key); +// try std.testing.expectEqualStrings("Hello world!----------------------------------------------------", &frame_data); +// } + +// try std.testing.expectEqual(bytes("96aa268a5e4708dc843dc4e21314ef45"), subscription.getKey(3)); +// try std.testing.expectEqual(bytes("b494fb2651d4beba877f96fa6f6049ee"), subscription.getKey(4)); +// } + +// test "getKey largest range" { +// const root_hashes: []const [16]u8 = &[_][16]u8{ +// .{ 82, 135, 43, 160, 152, 200, 145, 46, 38, 149, 220, 27, 181, 94, 206, 127 }, +// }; + +// var subscription = Subscription.init(0, std.math.maxInt(u64), std.mem.sliceAsBytes(root_hashes)); +// try std.testing.expectEqualDeep(&[_]RootPosition{ +// .{ .offset = 0, .power = 64 }, +// }, subscription.roots[0..1]); + +// try std.testing.expectEqual(bytes("f5e67ba16ef73c2abfba04ec9c69f6cb"), subscription.getKey(0)); +// try std.testing.expectEqual(bytes("ab65afe68a218ea94bbd9eb322bada03"), subscription.getKey(1)); +// try std.testing.expectEqual(bytes("7b85341af0919ca152ea5ccb8119997d"), subscription.getKey(150)); +// try std.testing.expectEqual(bytes("50433b2d0ab5d7859c88c646f2379ffd"), subscription.getKey(0xdeadbeefcafebabe)); + +// var frame_data = bytes("dc2128afcbec2c89326d84ce6374b02e0e863031e9618361824648b209c8c44caff4d68f0654ec7e1de087ccfdbd20814a62beae2b6d899104b926b06bc03dae"); +// crypto.decrypt(&frame_data, subscription.getKey(0xdeadbeefcafebabe)); +// try std.testing.expectEqualStrings("Hola Mundo------------------------------------------------------", &frame_data); +// } + +// test "getKey single value range" { +// const root_hashes: []const [16]u8 = &[_][16]u8{ +// .{ 180, 148, 251, 38, 81, 212, 190, 186, 135, 127, 150, 250, 111, 96, 73, 238 }, +// }; + +// var subscription = Subscription.init(4, 4, std.mem.sliceAsBytes(root_hashes)); +// try std.testing.expectEqualDeep(&[_]RootPosition{ +// .{ .offset = 4, .power = 0 }, +// }, subscription.roots[0..1]); + +// const key = subscription.getKey(4); +// try std.testing.expectEqual(bytes("b494fb2651d4beba877f96fa6f6049ee"), key); + +// var frame_data = bytes("87c544979d7df0237bb5e0791e08e1288cb6bf3090cba085d1c9a37f265fadbcb613587ed4c6e09f49b8d96a0a18c1d5d3c96ebc9c18377b9f59e769e3a6c4f8"); +// crypto.decrypt(&frame_data, key); +// try std.testing.expectEqualStrings("Hallo Welt------------------------------------------------------", &frame_data); +// } + +// test "getKey most suboptimal" { +// const root_hashes: []const [16]u8 = &[_][16]u8{ .{ 171, 101, 175, 230, 138, 33, 142, 169, 75, 189, 158, 179, 34, 186, 218, 3 }, .{ 40, 11, 189, 239, 152, 148, 157, 195, 126, 141, 227, 76, 145, 86, 166, 241 }, .{ 5, 177, 195, 245, 213, 145, 29, 122, 70, 200, 246, 81, 248, 167, 147, 64 }, .{ 135, 0, 34, 57, 233, 90, 196, 89, 130, 172, 80, 109, 57, 101, 140, 41 }, .{ 27, 126, 213, 90, 191, 60, 76, 161, 2, 201, 226, 113, 175, 32, 84, 77 }, .{ 40, 147, 106, 248, 12, 82, 253, 129, 162, 154, 146, 44, 215, 4, 113, 29 }, .{ 68, 193, 76, 43, 215, 241, 35, 214, 60, 251, 96, 33, 144, 131, 150, 173 }, .{ 1, 128, 199, 64, 208, 78, 41, 108, 239, 208, 135, 162, 89, 117, 100, 161 }, .{ 158, 220, 205, 237, 83, 48, 90, 81, 13, 202, 190, 132, 158, 215, 147, 151 }, .{ 152, 99, 85, 222, 38, 225, 68, 166, 19, 118, 97, 158, 255, 140, 143, 243 }, .{ 218, 137, 203, 226, 139, 74, 72, 54, 1, 228, 215, 100, 8, 106, 199, 157 }, .{ 201, 130, 175, 201, 183, 116, 151, 110, 145, 91, 105, 47, 99, 210, 178, 35 }, .{ 227, 37, 43, 36, 182, 122, 101, 160, 5, 232, 38, 186, 197, 120, 49, 30 }, .{ 12, 0, 98, 177, 205, 237, 153, 88, 74, 22, 122, 35, 169, 18, 234, 33 }, .{ 16, 2, 184, 212, 185, 139, 131, 10, 76, 176, 95, 193, 95, 164, 96, 0 }, .{ 239, 160, 157, 130, 230, 140, 221, 208, 220, 26, 175, 57, 245, 248, 164, 10 }, .{ 37, 255, 103, 247, 118, 85, 169, 149, 142, 55, 224, 172, 86, 2, 152, 244 }, .{ 158, 3, 32, 215, 196, 212, 8, 226, 70, 252, 189, 162, 62, 201, 21, 250 }, .{ 125, 60, 122, 94, 62, 89, 69, 190, 125, 239, 15, 157, 221, 213, 179, 39 }, .{ 95, 77, 36, 115, 241, 83, 217, 187, 172, 65, 17, 78, 3, 146, 47, 90 }, .{ 79, 95, 110, 117, 169, 101, 225, 12, 123, 91, 39, 142, 255, 211, 55, 191 }, .{ 56, 251, 114, 15, 236, 4, 96, 247, 144, 45, 20, 33, 73, 94, 106, 40 }, .{ 155, 18, 159, 5, 31, 116, 125, 43, 220, 197, 248, 236, 97, 14, 152, 68 }, .{ 93, 22, 11, 0, 72, 238, 74, 109, 231, 199, 210, 85, 183, 128, 55, 79 }, .{ 34, 252, 212, 10, 31, 109, 219, 217, 109, 253, 21, 178, 189, 255, 60, 221 }, .{ 211, 191, 239, 17, 113, 225, 168, 254, 37, 51, 19, 56, 79, 128, 112, 71 }, .{ 99, 56, 13, 231, 205, 208, 182, 175, 83, 58, 184, 71, 154, 134, 139, 253 }, .{ 191, 215, 211, 125, 207, 240, 24, 158, 28, 155, 167, 236, 251, 253, 151, 1 }, .{ 155, 40, 116, 191, 209, 198, 38, 153, 35, 17, 130, 208, 215, 124, 216, 80 }, .{ 213, 160, 226, 88, 180, 107, 170, 183, 126, 254, 232, 26, 134, 77, 231, 136 }, .{ 159, 34, 18, 138, 29, 195, 20, 78, 185, 72, 183, 25, 222, 216, 1, 137 }, .{ 55, 46, 21, 127, 217, 152, 127, 118, 90, 105, 247, 120, 162, 126, 161, 98 }, .{ 77, 45, 148, 76, 48, 34, 87, 80, 5, 249, 226, 97, 96, 126, 20, 125 }, .{ 22, 120, 157, 172, 208, 54, 120, 135, 132, 245, 168, 143, 30, 25, 57, 163 }, .{ 226, 58, 158, 15, 47, 92, 248, 143, 39, 243, 80, 149, 93, 186, 130, 25 }, .{ 243, 43, 111, 5, 207, 185, 204, 174, 24, 52, 253, 57, 209, 196, 98, 22 }, .{ 254, 145, 153, 51, 110, 57, 49, 25, 212, 4, 50, 59, 204, 119, 112, 76 }, .{ 27, 220, 114, 73, 165, 56, 134, 143, 210, 221, 94, 253, 55, 77, 66, 121 }, .{ 116, 233, 232, 166, 8, 172, 31, 207, 153, 40, 78, 215, 46, 96, 64, 177 }, .{ 72, 134, 39, 43, 151, 231, 243, 233, 218, 85, 62, 150, 158, 248, 96, 243 }, .{ 205, 130, 40, 111, 14, 106, 106, 231, 40, 94, 38, 216, 122, 229, 46, 218 }, .{ 48, 197, 93, 118, 246, 100, 120, 64, 96, 150, 162, 214, 42, 240, 192, 107 }, .{ 248, 216, 174, 118, 229, 87, 100, 230, 117, 43, 239, 185, 2, 168, 156, 106 }, .{ 138, 102, 125, 199, 42, 91, 174, 47, 131, 24, 185, 106, 97, 66, 222, 189 }, .{ 30, 203, 51, 151, 255, 121, 228, 128, 2, 43, 176, 22, 78, 35, 17, 130 }, .{ 207, 113, 129, 69, 203, 147, 109, 188, 244, 83, 251, 33, 133, 242, 220, 69 }, .{ 232, 119, 192, 236, 253, 230, 9, 195, 123, 39, 135, 205, 77, 85, 222, 131 }, .{ 229, 199, 41, 20, 101, 157, 154, 116, 180, 119, 76, 135, 112, 192, 214, 168 }, .{ 216, 165, 171, 165, 44, 209, 170, 17, 239, 60, 104, 40, 240, 109, 104, 78 }, .{ 196, 92, 150, 190, 129, 232, 224, 167, 3, 166, 122, 241, 19, 155, 238, 163 }, .{ 166, 108, 135, 90, 125, 108, 34, 231, 17, 201, 178, 126, 148, 18, 147, 37 }, .{ 60, 137, 194, 191, 131, 91, 46, 8, 85, 57, 139, 43, 190, 71, 125, 11 }, .{ 191, 80, 210, 78, 196, 154, 87, 164, 59, 19, 111, 150, 222, 62, 249, 114 }, .{ 56, 137, 158, 238, 197, 142, 38, 225, 196, 120, 238, 199, 123, 239, 48, 228 }, .{ 177, 111, 132, 150, 102, 107, 5, 98, 119, 35, 61, 60, 138, 142, 144, 130 }, .{ 166, 18, 232, 50, 169, 92, 63, 113, 193, 174, 98, 183, 34, 202, 248, 122 }, .{ 73, 22, 52, 241, 149, 202, 125, 85, 119, 228, 31, 58, 52, 130, 220, 236 }, .{ 85, 20, 148, 17, 178, 16, 143, 31, 149, 116, 154, 95, 113, 75, 106, 23 }, .{ 203, 205, 9, 153, 124, 90, 214, 253, 36, 220, 146, 177, 213, 38, 7, 221 }, .{ 195, 71, 190, 185, 130, 0, 53, 29, 109, 15, 98, 209, 125, 32, 187, 244 }, .{ 91, 216, 193, 234, 41, 81, 96, 44, 174, 65, 6, 18, 89, 122, 23, 23 }, .{ 234, 194, 223, 213, 205, 242, 74, 123, 33, 174, 76, 123, 119, 88, 233, 89 }, .{ 166, 196, 129, 219, 86, 43, 224, 95, 27, 148, 179, 135, 224, 77, 153, 239 }, .{ 145, 123, 214, 136, 152, 33, 17, 187, 240, 221, 45, 44, 122, 245, 85, 122 }, .{ 227, 89, 124, 3, 189, 228, 95, 53, 176, 118, 136, 32, 9, 253, 92, 7 }, .{ 233, 145, 171, 47, 119, 101, 40, 71, 214, 15, 107, 39, 172, 176, 226, 90 }, .{ 170, 119, 38, 156, 29, 66, 192, 47, 170, 69, 223, 188, 188, 27, 70, 34 }, .{ 77, 11, 23, 228, 173, 178, 236, 192, 80, 223, 110, 9, 188, 114, 125, 160 }, .{ 179, 197, 124, 22, 225, 54, 5, 216, 143, 58, 159, 63, 58, 88, 10, 197 }, .{ 46, 254, 132, 223, 27, 60, 121, 78, 165, 77, 182, 63, 169, 102, 151, 84 }, .{ 114, 202, 94, 75, 229, 58, 0, 185, 177, 11, 142, 38, 75, 16, 72, 241 }, .{ 235, 93, 246, 164, 150, 218, 195, 75, 2, 43, 120, 254, 202, 15, 55, 181 }, .{ 141, 132, 51, 149, 169, 2, 51, 254, 180, 26, 221, 218, 180, 253, 83, 55 }, .{ 186, 222, 114, 204, 231, 126, 161, 13, 110, 229, 148, 191, 98, 15, 164, 218 }, .{ 155, 235, 59, 193, 219, 185, 243, 212, 186, 84, 237, 45, 136, 141, 94, 238 }, .{ 234, 165, 58, 179, 228, 205, 186, 187, 248, 207, 79, 125, 191, 50, 229, 63 }, .{ 33, 95, 20, 15, 227, 199, 36, 2, 171, 161, 194, 243, 63, 188, 89, 39 }, .{ 93, 232, 105, 133, 51, 46, 193, 225, 122, 134, 68, 221, 73, 144, 184, 123 }, .{ 78, 209, 110, 31, 174, 234, 98, 29, 191, 101, 211, 75, 177, 245, 204, 174 }, .{ 158, 212, 123, 187, 163, 160, 187, 168, 135, 165, 20, 99, 154, 15, 85, 111 }, .{ 56, 148, 71, 122, 107, 77, 27, 173, 44, 140, 2, 14, 159, 247, 47, 110 }, .{ 117, 249, 231, 238, 209, 161, 34, 185, 173, 58, 96, 211, 236, 119, 163, 185 }, .{ 186, 105, 165, 164, 240, 116, 147, 236, 30, 12, 100, 9, 207, 80, 252, 70 }, .{ 34, 195, 162, 141, 60, 155, 24, 68, 68, 202, 216, 122, 197, 152, 222, 171 }, .{ 187, 107, 143, 149, 230, 139, 28, 201, 211, 237, 179, 121, 169, 236, 177, 86 }, .{ 250, 97, 255, 38, 108, 5, 96, 95, 17, 130, 247, 196, 207, 57, 113, 43 }, .{ 73, 23, 249, 197, 219, 243, 106, 63, 205, 222, 172, 199, 217, 34, 178, 37 }, .{ 60, 151, 18, 91, 94, 64, 14, 180, 24, 142, 241, 63, 70, 145, 199, 143 }, .{ 132, 216, 108, 113, 193, 121, 20, 191, 129, 233, 3, 188, 169, 32, 40, 134 }, .{ 33, 54, 157, 213, 141, 137, 64, 47, 47, 106, 38, 174, 94, 11, 248, 65 }, .{ 165, 76, 166, 254, 245, 35, 151, 30, 72, 73, 161, 145, 41, 212, 76, 161 }, .{ 106, 71, 87, 129, 16, 157, 125, 217, 119, 27, 92, 35, 86, 207, 32, 50 }, .{ 222, 86, 208, 75, 171, 167, 111, 233, 175, 110, 224, 164, 33, 116, 183, 226 }, .{ 234, 172, 110, 152, 92, 115, 244, 175, 75, 144, 227, 9, 4, 56, 245, 33 }, .{ 80, 88, 208, 10, 163, 177, 104, 19, 139, 69, 49, 120, 132, 179, 214, 139 }, .{ 233, 100, 154, 235, 213, 206, 54, 209, 65, 181, 22, 204, 173, 128, 167, 127 }, .{ 115, 151, 161, 182, 181, 232, 91, 69, 76, 189, 76, 243, 93, 150, 4, 160 }, .{ 117, 115, 77, 183, 16, 153, 143, 122, 59, 24, 192, 162, 252, 34, 240, 109 }, .{ 176, 118, 218, 110, 33, 14, 8, 163, 252, 105, 61, 20, 32, 114, 247, 65 }, .{ 230, 25, 161, 223, 173, 107, 212, 131, 233, 89, 95, 52, 137, 143, 164, 114 }, .{ 196, 11, 148, 18, 253, 59, 48, 120, 70, 73, 180, 131, 201, 39, 242, 59 }, .{ 223, 179, 182, 62, 43, 198, 139, 72, 239, 175, 38, 23, 105, 80, 232, 192 }, .{ 64, 250, 175, 123, 218, 253, 218, 107, 34, 109, 222, 38, 56, 130, 52, 36 }, .{ 24, 19, 74, 82, 95, 191, 48, 87, 183, 116, 221, 67, 92, 220, 88, 86 }, .{ 34, 150, 117, 174, 241, 56, 237, 235, 247, 231, 211, 165, 57, 40, 27, 5 }, .{ 10, 220, 233, 61, 141, 167, 118, 43, 211, 142, 188, 189, 146, 254, 149, 15 }, .{ 107, 135, 236, 3, 185, 17, 48, 66, 59, 120, 55, 78, 99, 193, 234, 123 }, .{ 65, 159, 53, 249, 8, 245, 252, 91, 238, 162, 218, 172, 5, 85, 226, 126 }, .{ 239, 174, 12, 32, 114, 165, 225, 24, 148, 141, 37, 139, 55, 112, 101, 14 }, .{ 93, 218, 130, 92, 129, 82, 110, 253, 94, 150, 37, 71, 28, 136, 109, 25 }, .{ 220, 248, 132, 193, 128, 161, 28, 182, 137, 176, 37, 64, 178, 175, 100, 17 }, .{ 222, 28, 206, 11, 113, 156, 200, 183, 16, 59, 181, 249, 128, 128, 78, 239 }, .{ 246, 143, 203, 255, 240, 134, 218, 5, 102, 157, 232, 137, 202, 92, 222, 92 }, .{ 54, 43, 61, 121, 95, 80, 181, 111, 62, 16, 62, 221, 89, 171, 85, 124 }, .{ 104, 124, 202, 164, 6, 127, 8, 212, 211, 111, 75, 184, 104, 123, 153, 141 }, .{ 43, 104, 217, 44, 180, 82, 44, 133, 169, 112, 44, 119, 59, 111, 40, 211 }, .{ 230, 238, 132, 179, 143, 0, 149, 10, 33, 28, 213, 144, 79, 242, 40, 184 }, .{ 229, 171, 198, 222, 79, 56, 22, 153, 160, 51, 147, 166, 61, 229, 243, 17 }, .{ 62, 189, 44, 195, 110, 41, 83, 109, 0, 177, 246, 190, 13, 239, 53, 78 }, .{ 1, 69, 72, 196, 194, 222, 95, 141, 131, 64, 0, 2, 96, 22, 23, 149 }, .{ 134, 131, 127, 87, 238, 170, 193, 138, 182, 245, 213, 9, 85, 156, 111, 31 }, .{ 128, 81, 113, 54, 175, 15, 162, 45, 254, 252, 10, 247, 213, 179, 85, 49 }, .{ 38, 180, 181, 65, 187, 123, 103, 26, 78, 179, 64, 111, 200, 3, 198, 27 }, .{ 230, 58, 110, 58, 168, 130, 33, 115, 79, 65, 113, 176, 67, 177, 144, 97 }, .{ 253, 158, 179, 44, 135, 188, 73, 51, 230, 44, 78, 129, 172, 41, 132, 250 }, .{ 202, 210, 242, 76, 120, 79, 139, 180, 96, 145, 169, 33, 43, 132, 9, 75 } }; +// var subscription = Subscription.init(1, std.math.maxInt(u64) - 1, std.mem.sliceAsBytes(root_hashes)); +// try std.testing.expectEqual(@as(usize, 126), subscription.roots.len); + +// const key = subscription.getKey(42069); +// try std.testing.expectEqual(bytes("7d4812bb046d7c7c30cf7d4380574a6c"), key); + +// var frame_data = bytes("d993a63f87a36ba26e73c3a727f07f2efc4fac720c9f5f42f3993c01a950d4b719c8cd5d3d606b11fef1417deea1499e03ca83ae0f9fb4e1f290e6e3865bdab9"); +// crypto.decrypt(&frame_data, key); +// try std.testing.expectEqualStrings("Bonjour le monde------------------------------------------------", &frame_data); +// } fn bytes(comptime hex: []const u8) [hex.len / 2]u8 { comptime var result = std.mem.zeroes([hex.len / 2]u8); diff --git a/decoder/subscribe.zig b/decoder/subscribe.zig index 2e2d215..f69e806 100644 --- a/decoder/subscribe.zig +++ b/decoder/subscribe.zig @@ -21,6 +21,7 @@ pub fn execute(body: []u8) !void { const header: *const SubscribeHeader = @ptrCast(body.ptr); const channel_index = header.channel - 1; + if (root.subscriptions[channel_index]) |*subscription| subscription.deinit(); root.subscriptions[channel_index] = lib.Subscription.init(header.start, header.end, body[@sizeOf(SubscribeHeader)..]); try flash.saveSubscriptions(@truncate(channel_index)); diff --git a/design/ectf25_design/encoder.py b/design/ectf25_design/encoder.py index 4016389..c7519e7 100755 --- a/design/ectf25_design/encoder.py +++ b/design/ectf25_design/encoder.py @@ -24,7 +24,7 @@ def hash(data: bytes): - return blake3(data).digest(length=16) + return blake3(data).digest(length=24) class Encoder: @@ -74,7 +74,7 @@ def encode(self, channel: int, frame: bytes, timestamp: int) -> bytes: else: curr = hash(curr + RIGHT_SALT) - encrypted_frame = Salsa20.new(key=curr+curr, nonce=bytes([0 for _ in range(8)])).encrypt(frame) + encrypted_frame = Salsa20.new(key=curr+curr[:8], nonce=bytes([0 for _ in range(8)])).encrypt(frame) message = struct.pack(" bytes: signer = eddsa.new(keypair, "rfc8032") secrets = { - "seeds": {str(channel): os.urandom(16).hex() for channel in channels}, + "seeds": {str(channel): os.urandom(24).hex() for channel in channels}, "subscription_salt": os.urandom(32).hex(), "public_key": keypair.public_key().export_key(format="raw").hex(), "private_key": keypair.export_key(format="PEM"), diff --git a/design/ectf25_design/gen_subscription.py b/design/ectf25_design/gen_subscription.py index 4b49a0b..5256346 100644 --- a/design/ectf25_design/gen_subscription.py +++ b/design/ectf25_design/gen_subscription.py @@ -25,7 +25,7 @@ def hash(data: bytes): - return blake3(data).digest(length=16) + return blake3(data).digest(length=24) @dataclass(frozen=True) @@ -62,11 +62,9 @@ def gen_subscription( curr = hash(curr + LEFT_SALT) else: curr = hash(curr + RIGHT_SALT) - print(root, curr.hex()) hashes.append(curr) subscription_salt = bytes.fromhex(secrets["subscription_salt"]) - print(f"{subscription_salt.hex()}{device_id:08x}") key = blake3(f"{subscription_salt.hex()}{device_id:08x}".encode()).digest() # Pack the subscription. 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T [Start Timestamp], [8 bytes], bytesize(8), [End Timestamp], [8 bytes], bytesize(8), [Packed Subtree Root Hashes], - ${16n "bytes" | n in NN, 1 <= n <= 126 }$, - box(box(bytesize(16)) + " " + box($...n "times"$)), + ${24n "bytes" | n in NN^+ and n <= 126 }$, + box(box(bytesize(24)) + " " + box($...n "times"$)), ), ) @@ -377,7 +377,7 @@ def get_nodes(a: int, b: int) -> list[Node]: while a <= b: power = min((b - a + 1).bit_length() - 1, ctz(a)) ranges.append(Node(offset=a, power=power)) - a += 1 << power + a += 2 ** power return ranges ``` diff --git a/docs/pages/page-6.svg b/docs/pages/page-6.svg index 27e3dd2..7ca5aa2 100644 --- a/docs/pages/page-6.svg +++ b/docs/pages/page-6.svg @@ -1306,11 +1306,11 @@ - + - + @@ -1333,7 +1333,7 @@ - + @@ -1371,7 +1371,7 @@ - + @@ -1402,7 +1402,7 @@ - + @@ -1431,7 +1431,7 @@ - + @@ -1471,12 +1471,12 @@ - + - + @@ -1513,47 +1513,42 @@ - + - + - + - + - - - - - - + - + - + - + - + - + @@ -1561,22 +1556,22 @@ - + - + - + - + @@ -3222,6 +3217,9 @@ + + + @@ -3240,6 +3238,12 @@ + + + + + + diff --git a/docs/pages/page-9.svg b/docs/pages/page-9.svg index 3c5d7b9..8dfa1bf 100644 --- a/docs/pages/page-9.svg +++ b/docs/pages/page-9.svg @@ -860,7 +860,7 @@ - + @@ -868,12 +868,12 @@ - + - + @@ -1389,6 +1389,9 @@ + + + From 077b5e27db2fc19045a807ec8199226afda6c095 Mon Sep 17 00:00:00 2001 From: Joshua Sims Date: Mon, 10 Feb 2025 16:08:20 -0500 Subject: [PATCH 2/3] update tests --- decoder/lib/subscription.zig | 158 +++++++++++++++++------------------ 1 file changed, 79 insertions(+), 79 deletions(-) diff --git a/decoder/lib/subscription.zig b/decoder/lib/subscription.zig index a5a7110..76a2506 100644 --- a/decoder/lib/subscription.zig +++ b/decoder/lib/subscription.zig @@ -121,85 +121,85 @@ test "ctz" { try std.testing.expectEqual(64, @ctz(@as(u64, 0))); } -// test "getKey" { -// const root_hashes: []const [16]u8 = &[_][16]u8{ -// .{ 171, 101, 175, 230, 138, 33, 142, 169, 75, 189, 158, 179, 34, 186, 218, 3 }, -// .{ 40, 11, 189, 239, 152, 148, 157, 195, 126, 141, 227, 76, 145, 86, 166, 241 }, -// .{ 138, 166, 254, 112, 191, 217, 169, 183, 225, 118, 180, 55, 26, 151, 176, 39 }, -// .{ 147, 254, 134, 61, 116, 97, 34, 122, 101, 149, 153, 111, 55, 78, 71, 232 }, -// }; - -// var subscription = Subscription.init(1, 6, std.mem.sliceAsBytes(root_hashes)); -// try std.testing.expectEqualDeep(&[_]RootPosition{ -// .{ .offset = 1, .power = 0 }, -// .{ .offset = 2, .power = 1 }, -// .{ .offset = 4, .power = 1 }, -// .{ .offset = 6, .power = 0 }, -// }, subscription.roots[0..4]); - -// { -// const key = subscription.getKey(2); -// try std.testing.expectEqual(bytes("1ecf7fc4dd1bda2a593fb7f7d0959b1f"), key); - -// var frame_data = bytes("b669a858d2f9c5d3b2c5a85ca98c46bc3557740a9260ce921523a352fdc71c5779a741c2de4b3fe94ecb8cbf15804e609acf2be1056da0c1cb5dfa8bdbb99486"); -// crypto.decrypt(&frame_data, key); -// try std.testing.expectEqualStrings("Hello world!----------------------------------------------------", &frame_data); -// } - -// try std.testing.expectEqual(bytes("96aa268a5e4708dc843dc4e21314ef45"), subscription.getKey(3)); -// try std.testing.expectEqual(bytes("b494fb2651d4beba877f96fa6f6049ee"), subscription.getKey(4)); -// } - -// test "getKey largest range" { -// const root_hashes: []const [16]u8 = &[_][16]u8{ -// .{ 82, 135, 43, 160, 152, 200, 145, 46, 38, 149, 220, 27, 181, 94, 206, 127 }, -// }; - -// var subscription = Subscription.init(0, std.math.maxInt(u64), std.mem.sliceAsBytes(root_hashes)); -// try std.testing.expectEqualDeep(&[_]RootPosition{ -// .{ .offset = 0, .power = 64 }, -// }, subscription.roots[0..1]); - -// try std.testing.expectEqual(bytes("f5e67ba16ef73c2abfba04ec9c69f6cb"), subscription.getKey(0)); -// try std.testing.expectEqual(bytes("ab65afe68a218ea94bbd9eb322bada03"), subscription.getKey(1)); -// try std.testing.expectEqual(bytes("7b85341af0919ca152ea5ccb8119997d"), subscription.getKey(150)); -// try std.testing.expectEqual(bytes("50433b2d0ab5d7859c88c646f2379ffd"), subscription.getKey(0xdeadbeefcafebabe)); - -// var frame_data = bytes("dc2128afcbec2c89326d84ce6374b02e0e863031e9618361824648b209c8c44caff4d68f0654ec7e1de087ccfdbd20814a62beae2b6d899104b926b06bc03dae"); -// crypto.decrypt(&frame_data, subscription.getKey(0xdeadbeefcafebabe)); -// try std.testing.expectEqualStrings("Hola Mundo------------------------------------------------------", &frame_data); -// } - -// test "getKey single value range" { -// const root_hashes: []const [16]u8 = &[_][16]u8{ -// .{ 180, 148, 251, 38, 81, 212, 190, 186, 135, 127, 150, 250, 111, 96, 73, 238 }, -// }; - -// var subscription = Subscription.init(4, 4, std.mem.sliceAsBytes(root_hashes)); -// try std.testing.expectEqualDeep(&[_]RootPosition{ -// .{ .offset = 4, .power = 0 }, -// }, subscription.roots[0..1]); - -// const key = subscription.getKey(4); -// try std.testing.expectEqual(bytes("b494fb2651d4beba877f96fa6f6049ee"), key); - -// var frame_data = bytes("87c544979d7df0237bb5e0791e08e1288cb6bf3090cba085d1c9a37f265fadbcb613587ed4c6e09f49b8d96a0a18c1d5d3c96ebc9c18377b9f59e769e3a6c4f8"); -// crypto.decrypt(&frame_data, key); -// try std.testing.expectEqualStrings("Hallo Welt------------------------------------------------------", &frame_data); -// } - -// test "getKey most suboptimal" { -// const root_hashes: []const [16]u8 = &[_][16]u8{ .{ 171, 101, 175, 230, 138, 33, 142, 169, 75, 189, 158, 179, 34, 186, 218, 3 }, .{ 40, 11, 189, 239, 152, 148, 157, 195, 126, 141, 227, 76, 145, 86, 166, 241 }, .{ 5, 177, 195, 245, 213, 145, 29, 122, 70, 200, 246, 81, 248, 167, 147, 64 }, .{ 135, 0, 34, 57, 233, 90, 196, 89, 130, 172, 80, 109, 57, 101, 140, 41 }, .{ 27, 126, 213, 90, 191, 60, 76, 161, 2, 201, 226, 113, 175, 32, 84, 77 }, .{ 40, 147, 106, 248, 12, 82, 253, 129, 162, 154, 146, 44, 215, 4, 113, 29 }, .{ 68, 193, 76, 43, 215, 241, 35, 214, 60, 251, 96, 33, 144, 131, 150, 173 }, .{ 1, 128, 199, 64, 208, 78, 41, 108, 239, 208, 135, 162, 89, 117, 100, 161 }, .{ 158, 220, 205, 237, 83, 48, 90, 81, 13, 202, 190, 132, 158, 215, 147, 151 }, .{ 152, 99, 85, 222, 38, 225, 68, 166, 19, 118, 97, 158, 255, 140, 143, 243 }, .{ 218, 137, 203, 226, 139, 74, 72, 54, 1, 228, 215, 100, 8, 106, 199, 157 }, .{ 201, 130, 175, 201, 183, 116, 151, 110, 145, 91, 105, 47, 99, 210, 178, 35 }, .{ 227, 37, 43, 36, 182, 122, 101, 160, 5, 232, 38, 186, 197, 120, 49, 30 }, .{ 12, 0, 98, 177, 205, 237, 153, 88, 74, 22, 122, 35, 169, 18, 234, 33 }, .{ 16, 2, 184, 212, 185, 139, 131, 10, 76, 176, 95, 193, 95, 164, 96, 0 }, .{ 239, 160, 157, 130, 230, 140, 221, 208, 220, 26, 175, 57, 245, 248, 164, 10 }, .{ 37, 255, 103, 247, 118, 85, 169, 149, 142, 55, 224, 172, 86, 2, 152, 244 }, .{ 158, 3, 32, 215, 196, 212, 8, 226, 70, 252, 189, 162, 62, 201, 21, 250 }, .{ 125, 60, 122, 94, 62, 89, 69, 190, 125, 239, 15, 157, 221, 213, 179, 39 }, .{ 95, 77, 36, 115, 241, 83, 217, 187, 172, 65, 17, 78, 3, 146, 47, 90 }, .{ 79, 95, 110, 117, 169, 101, 225, 12, 123, 91, 39, 142, 255, 211, 55, 191 }, .{ 56, 251, 114, 15, 236, 4, 96, 247, 144, 45, 20, 33, 73, 94, 106, 40 }, .{ 155, 18, 159, 5, 31, 116, 125, 43, 220, 197, 248, 236, 97, 14, 152, 68 }, .{ 93, 22, 11, 0, 72, 238, 74, 109, 231, 199, 210, 85, 183, 128, 55, 79 }, .{ 34, 252, 212, 10, 31, 109, 219, 217, 109, 253, 21, 178, 189, 255, 60, 221 }, .{ 211, 191, 239, 17, 113, 225, 168, 254, 37, 51, 19, 56, 79, 128, 112, 71 }, .{ 99, 56, 13, 231, 205, 208, 182, 175, 83, 58, 184, 71, 154, 134, 139, 253 }, .{ 191, 215, 211, 125, 207, 240, 24, 158, 28, 155, 167, 236, 251, 253, 151, 1 }, .{ 155, 40, 116, 191, 209, 198, 38, 153, 35, 17, 130, 208, 215, 124, 216, 80 }, .{ 213, 160, 226, 88, 180, 107, 170, 183, 126, 254, 232, 26, 134, 77, 231, 136 }, .{ 159, 34, 18, 138, 29, 195, 20, 78, 185, 72, 183, 25, 222, 216, 1, 137 }, .{ 55, 46, 21, 127, 217, 152, 127, 118, 90, 105, 247, 120, 162, 126, 161, 98 }, .{ 77, 45, 148, 76, 48, 34, 87, 80, 5, 249, 226, 97, 96, 126, 20, 125 }, .{ 22, 120, 157, 172, 208, 54, 120, 135, 132, 245, 168, 143, 30, 25, 57, 163 }, .{ 226, 58, 158, 15, 47, 92, 248, 143, 39, 243, 80, 149, 93, 186, 130, 25 }, .{ 243, 43, 111, 5, 207, 185, 204, 174, 24, 52, 253, 57, 209, 196, 98, 22 }, .{ 254, 145, 153, 51, 110, 57, 49, 25, 212, 4, 50, 59, 204, 119, 112, 76 }, .{ 27, 220, 114, 73, 165, 56, 134, 143, 210, 221, 94, 253, 55, 77, 66, 121 }, .{ 116, 233, 232, 166, 8, 172, 31, 207, 153, 40, 78, 215, 46, 96, 64, 177 }, .{ 72, 134, 39, 43, 151, 231, 243, 233, 218, 85, 62, 150, 158, 248, 96, 243 }, .{ 205, 130, 40, 111, 14, 106, 106, 231, 40, 94, 38, 216, 122, 229, 46, 218 }, .{ 48, 197, 93, 118, 246, 100, 120, 64, 96, 150, 162, 214, 42, 240, 192, 107 }, .{ 248, 216, 174, 118, 229, 87, 100, 230, 117, 43, 239, 185, 2, 168, 156, 106 }, .{ 138, 102, 125, 199, 42, 91, 174, 47, 131, 24, 185, 106, 97, 66, 222, 189 }, .{ 30, 203, 51, 151, 255, 121, 228, 128, 2, 43, 176, 22, 78, 35, 17, 130 }, .{ 207, 113, 129, 69, 203, 147, 109, 188, 244, 83, 251, 33, 133, 242, 220, 69 }, .{ 232, 119, 192, 236, 253, 230, 9, 195, 123, 39, 135, 205, 77, 85, 222, 131 }, .{ 229, 199, 41, 20, 101, 157, 154, 116, 180, 119, 76, 135, 112, 192, 214, 168 }, .{ 216, 165, 171, 165, 44, 209, 170, 17, 239, 60, 104, 40, 240, 109, 104, 78 }, .{ 196, 92, 150, 190, 129, 232, 224, 167, 3, 166, 122, 241, 19, 155, 238, 163 }, .{ 166, 108, 135, 90, 125, 108, 34, 231, 17, 201, 178, 126, 148, 18, 147, 37 }, .{ 60, 137, 194, 191, 131, 91, 46, 8, 85, 57, 139, 43, 190, 71, 125, 11 }, .{ 191, 80, 210, 78, 196, 154, 87, 164, 59, 19, 111, 150, 222, 62, 249, 114 }, .{ 56, 137, 158, 238, 197, 142, 38, 225, 196, 120, 238, 199, 123, 239, 48, 228 }, .{ 177, 111, 132, 150, 102, 107, 5, 98, 119, 35, 61, 60, 138, 142, 144, 130 }, .{ 166, 18, 232, 50, 169, 92, 63, 113, 193, 174, 98, 183, 34, 202, 248, 122 }, .{ 73, 22, 52, 241, 149, 202, 125, 85, 119, 228, 31, 58, 52, 130, 220, 236 }, .{ 85, 20, 148, 17, 178, 16, 143, 31, 149, 116, 154, 95, 113, 75, 106, 23 }, .{ 203, 205, 9, 153, 124, 90, 214, 253, 36, 220, 146, 177, 213, 38, 7, 221 }, .{ 195, 71, 190, 185, 130, 0, 53, 29, 109, 15, 98, 209, 125, 32, 187, 244 }, .{ 91, 216, 193, 234, 41, 81, 96, 44, 174, 65, 6, 18, 89, 122, 23, 23 }, .{ 234, 194, 223, 213, 205, 242, 74, 123, 33, 174, 76, 123, 119, 88, 233, 89 }, .{ 166, 196, 129, 219, 86, 43, 224, 95, 27, 148, 179, 135, 224, 77, 153, 239 }, .{ 145, 123, 214, 136, 152, 33, 17, 187, 240, 221, 45, 44, 122, 245, 85, 122 }, .{ 227, 89, 124, 3, 189, 228, 95, 53, 176, 118, 136, 32, 9, 253, 92, 7 }, .{ 233, 145, 171, 47, 119, 101, 40, 71, 214, 15, 107, 39, 172, 176, 226, 90 }, .{ 170, 119, 38, 156, 29, 66, 192, 47, 170, 69, 223, 188, 188, 27, 70, 34 }, .{ 77, 11, 23, 228, 173, 178, 236, 192, 80, 223, 110, 9, 188, 114, 125, 160 }, .{ 179, 197, 124, 22, 225, 54, 5, 216, 143, 58, 159, 63, 58, 88, 10, 197 }, .{ 46, 254, 132, 223, 27, 60, 121, 78, 165, 77, 182, 63, 169, 102, 151, 84 }, .{ 114, 202, 94, 75, 229, 58, 0, 185, 177, 11, 142, 38, 75, 16, 72, 241 }, .{ 235, 93, 246, 164, 150, 218, 195, 75, 2, 43, 120, 254, 202, 15, 55, 181 }, .{ 141, 132, 51, 149, 169, 2, 51, 254, 180, 26, 221, 218, 180, 253, 83, 55 }, .{ 186, 222, 114, 204, 231, 126, 161, 13, 110, 229, 148, 191, 98, 15, 164, 218 }, .{ 155, 235, 59, 193, 219, 185, 243, 212, 186, 84, 237, 45, 136, 141, 94, 238 }, .{ 234, 165, 58, 179, 228, 205, 186, 187, 248, 207, 79, 125, 191, 50, 229, 63 }, .{ 33, 95, 20, 15, 227, 199, 36, 2, 171, 161, 194, 243, 63, 188, 89, 39 }, .{ 93, 232, 105, 133, 51, 46, 193, 225, 122, 134, 68, 221, 73, 144, 184, 123 }, .{ 78, 209, 110, 31, 174, 234, 98, 29, 191, 101, 211, 75, 177, 245, 204, 174 }, .{ 158, 212, 123, 187, 163, 160, 187, 168, 135, 165, 20, 99, 154, 15, 85, 111 }, .{ 56, 148, 71, 122, 107, 77, 27, 173, 44, 140, 2, 14, 159, 247, 47, 110 }, .{ 117, 249, 231, 238, 209, 161, 34, 185, 173, 58, 96, 211, 236, 119, 163, 185 }, .{ 186, 105, 165, 164, 240, 116, 147, 236, 30, 12, 100, 9, 207, 80, 252, 70 }, .{ 34, 195, 162, 141, 60, 155, 24, 68, 68, 202, 216, 122, 197, 152, 222, 171 }, .{ 187, 107, 143, 149, 230, 139, 28, 201, 211, 237, 179, 121, 169, 236, 177, 86 }, .{ 250, 97, 255, 38, 108, 5, 96, 95, 17, 130, 247, 196, 207, 57, 113, 43 }, .{ 73, 23, 249, 197, 219, 243, 106, 63, 205, 222, 172, 199, 217, 34, 178, 37 }, .{ 60, 151, 18, 91, 94, 64, 14, 180, 24, 142, 241, 63, 70, 145, 199, 143 }, .{ 132, 216, 108, 113, 193, 121, 20, 191, 129, 233, 3, 188, 169, 32, 40, 134 }, .{ 33, 54, 157, 213, 141, 137, 64, 47, 47, 106, 38, 174, 94, 11, 248, 65 }, .{ 165, 76, 166, 254, 245, 35, 151, 30, 72, 73, 161, 145, 41, 212, 76, 161 }, .{ 106, 71, 87, 129, 16, 157, 125, 217, 119, 27, 92, 35, 86, 207, 32, 50 }, .{ 222, 86, 208, 75, 171, 167, 111, 233, 175, 110, 224, 164, 33, 116, 183, 226 }, .{ 234, 172, 110, 152, 92, 115, 244, 175, 75, 144, 227, 9, 4, 56, 245, 33 }, .{ 80, 88, 208, 10, 163, 177, 104, 19, 139, 69, 49, 120, 132, 179, 214, 139 }, .{ 233, 100, 154, 235, 213, 206, 54, 209, 65, 181, 22, 204, 173, 128, 167, 127 }, .{ 115, 151, 161, 182, 181, 232, 91, 69, 76, 189, 76, 243, 93, 150, 4, 160 }, .{ 117, 115, 77, 183, 16, 153, 143, 122, 59, 24, 192, 162, 252, 34, 240, 109 }, .{ 176, 118, 218, 110, 33, 14, 8, 163, 252, 105, 61, 20, 32, 114, 247, 65 }, .{ 230, 25, 161, 223, 173, 107, 212, 131, 233, 89, 95, 52, 137, 143, 164, 114 }, .{ 196, 11, 148, 18, 253, 59, 48, 120, 70, 73, 180, 131, 201, 39, 242, 59 }, .{ 223, 179, 182, 62, 43, 198, 139, 72, 239, 175, 38, 23, 105, 80, 232, 192 }, .{ 64, 250, 175, 123, 218, 253, 218, 107, 34, 109, 222, 38, 56, 130, 52, 36 }, .{ 24, 19, 74, 82, 95, 191, 48, 87, 183, 116, 221, 67, 92, 220, 88, 86 }, .{ 34, 150, 117, 174, 241, 56, 237, 235, 247, 231, 211, 165, 57, 40, 27, 5 }, .{ 10, 220, 233, 61, 141, 167, 118, 43, 211, 142, 188, 189, 146, 254, 149, 15 }, .{ 107, 135, 236, 3, 185, 17, 48, 66, 59, 120, 55, 78, 99, 193, 234, 123 }, .{ 65, 159, 53, 249, 8, 245, 252, 91, 238, 162, 218, 172, 5, 85, 226, 126 }, .{ 239, 174, 12, 32, 114, 165, 225, 24, 148, 141, 37, 139, 55, 112, 101, 14 }, .{ 93, 218, 130, 92, 129, 82, 110, 253, 94, 150, 37, 71, 28, 136, 109, 25 }, .{ 220, 248, 132, 193, 128, 161, 28, 182, 137, 176, 37, 64, 178, 175, 100, 17 }, .{ 222, 28, 206, 11, 113, 156, 200, 183, 16, 59, 181, 249, 128, 128, 78, 239 }, .{ 246, 143, 203, 255, 240, 134, 218, 5, 102, 157, 232, 137, 202, 92, 222, 92 }, .{ 54, 43, 61, 121, 95, 80, 181, 111, 62, 16, 62, 221, 89, 171, 85, 124 }, .{ 104, 124, 202, 164, 6, 127, 8, 212, 211, 111, 75, 184, 104, 123, 153, 141 }, .{ 43, 104, 217, 44, 180, 82, 44, 133, 169, 112, 44, 119, 59, 111, 40, 211 }, .{ 230, 238, 132, 179, 143, 0, 149, 10, 33, 28, 213, 144, 79, 242, 40, 184 }, .{ 229, 171, 198, 222, 79, 56, 22, 153, 160, 51, 147, 166, 61, 229, 243, 17 }, .{ 62, 189, 44, 195, 110, 41, 83, 109, 0, 177, 246, 190, 13, 239, 53, 78 }, .{ 1, 69, 72, 196, 194, 222, 95, 141, 131, 64, 0, 2, 96, 22, 23, 149 }, .{ 134, 131, 127, 87, 238, 170, 193, 138, 182, 245, 213, 9, 85, 156, 111, 31 }, .{ 128, 81, 113, 54, 175, 15, 162, 45, 254, 252, 10, 247, 213, 179, 85, 49 }, .{ 38, 180, 181, 65, 187, 123, 103, 26, 78, 179, 64, 111, 200, 3, 198, 27 }, .{ 230, 58, 110, 58, 168, 130, 33, 115, 79, 65, 113, 176, 67, 177, 144, 97 }, .{ 253, 158, 179, 44, 135, 188, 73, 51, 230, 44, 78, 129, 172, 41, 132, 250 }, .{ 202, 210, 242, 76, 120, 79, 139, 180, 96, 145, 169, 33, 43, 132, 9, 75 } }; -// var subscription = Subscription.init(1, std.math.maxInt(u64) - 1, std.mem.sliceAsBytes(root_hashes)); -// try std.testing.expectEqual(@as(usize, 126), subscription.roots.len); - -// const key = subscription.getKey(42069); -// try std.testing.expectEqual(bytes("7d4812bb046d7c7c30cf7d4380574a6c"), key); - -// var frame_data = bytes("d993a63f87a36ba26e73c3a727f07f2efc4fac720c9f5f42f3993c01a950d4b719c8cd5d3d606b11fef1417deea1499e03ca83ae0f9fb4e1f290e6e3865bdab9"); -// crypto.decrypt(&frame_data, key); -// try std.testing.expectEqualStrings("Bonjour le monde------------------------------------------------", &frame_data); -// } +test "getKey" { + const root_hashes: []const [24]u8 = &[_][24]u8{ + .{ 27, 85, 15, 241, 245, 1, 184, 108, 61, 75, 94, 31, 186, 159, 165, 231, 202, 106, 210, 107, 175, 133, 213, 171 }, + .{ 67, 160, 241, 104, 185, 171, 129, 66, 88, 183, 161, 50, 47, 216, 229, 73, 151, 14, 60, 188, 88, 2, 103, 200 }, + .{ 209, 54, 62, 114, 217, 2, 18, 160, 148, 155, 104, 119, 34, 205, 202, 233, 111, 127, 42, 141, 86, 137, 146, 197 }, + .{ 5, 165, 98, 21, 118, 240, 244, 147, 42, 182, 3, 173, 252, 45, 192, 168, 171, 248, 47, 145, 167, 156, 188, 134 }, + }; + + var subscription = Subscription.init(1, 6, std.mem.sliceAsBytes(root_hashes)); + try std.testing.expectEqualDeep(&[_]RootPosition{ + .{ .offset = 1, .power = 0 }, + .{ .offset = 2, .power = 1 }, + .{ .offset = 4, .power = 1 }, + .{ .offset = 6, .power = 0 }, + }, subscription.roots[0..4]); + + { + const key = subscription.getKey(2); + try std.testing.expectEqual(bytes("8c47ca6a93f55fb40b9674cb64d2634da741fa9432fc6478"), key); + + var frame_data = bytes("04f9c52cc6aeeabb44176c10ce4bb7318a53a2de96fdabf22d964974339bde5722c153eef203372728fa91146bcdd74fac0ffe14ff2b8de9a8449bab6e06d911"); + crypto.decrypt(&frame_data, key); + try std.testing.expectEqualStrings("Hello world!----------------------------------------------------", &frame_data); + } + + try std.testing.expectEqual(bytes("72038fa029f797fbe1615792c666a16343633f6f0398ba49"), subscription.getKey(3)); + try std.testing.expectEqual(bytes("8afe6e15af82e2cf5a9e98e274e7b0f7337c92a9956a863c"), subscription.getKey(4)); +} + +test "getKey largest range" { + const root_hashes: []const [24]u8 = &[_][24]u8{ + .{ 92, 41, 135, 21, 199, 72, 213, 178, 155, 32, 7, 238, 113, 7, 159, 182, 125, 146, 171, 77, 75, 54, 49, 192 }, + }; + + var subscription = Subscription.init(0, std.math.maxInt(u64), std.mem.sliceAsBytes(root_hashes)); + try std.testing.expectEqualDeep(&[_]RootPosition{ + .{ .offset = 0, .power = 64 }, + }, subscription.roots[0..1]); + + try std.testing.expectEqual(bytes("3211aa2b56436729e010de5ba6fceee544e09e39f706767e"), subscription.getKey(0)); + try std.testing.expectEqual(bytes("1b550ff1f501b86c3d4b5e1fba9fa5e7ca6ad26baf85d5ab"), subscription.getKey(1)); + try std.testing.expectEqual(bytes("ee6d906f2e1136b643ec383d8a61e42f0fac959bab8ea137"), subscription.getKey(150)); + try std.testing.expectEqual(bytes("d9ceb3d9c9df5242fda778f999d13ca0404f99cfa5422ec3"), subscription.getKey(0xdeadbeefcafebabe)); + + var frame_data = bytes("8b77b010a5810b4849d7d4799af6300738848dc82f6517044e5c57c379db9b4cf01b183073060a690b3c1503f12d174ca5093dfb0927f231c2372c56790a9c8c"); + crypto.decrypt(&frame_data, subscription.getKey(0xdeadbeefcafebabe)); + try std.testing.expectEqualStrings("Hola Mundo------------------------------------------------------", &frame_data); +} + +test "getKey single value range" { + const root_hashes: []const [24]u8 = &[_][24]u8{ + .{ 138, 254, 110, 21, 175, 130, 226, 207, 90, 158, 152, 226, 116, 231, 176, 247, 51, 124, 146, 169, 149, 106, 134, 60 }, + }; + + var subscription = Subscription.init(4, 4, std.mem.sliceAsBytes(root_hashes)); + try std.testing.expectEqualDeep(&[_]RootPosition{ + .{ .offset = 4, .power = 0 }, + }, subscription.roots[0..1]); + + const key = subscription.getKey(4); + try std.testing.expectEqual(bytes("8afe6e15af82e2cf5a9e98e274e7b0f7337c92a9956a863c"), key); + + var frame_data = bytes("5f0cd96b263823ed35fe8844a352933a7dbf0db4caf706d781af22ff8263461ac87e7cea209cc78902002e5007da61d3cde331b20c2b0577a23eb0d6c537ca5b"); + crypto.decrypt(&frame_data, key); + try std.testing.expectEqualStrings("Hallo welt------------------------------------------------------", &frame_data); +} + +test "getKey most suboptimal" { + const root_hashes: []const [24]u8 = &[_][24]u8{ .{ 27, 85, 15, 241, 245, 1, 184, 108, 61, 75, 94, 31, 186, 159, 165, 231, 202, 106, 210, 107, 175, 133, 213, 171 }, .{ 67, 160, 241, 104, 185, 171, 129, 66, 88, 183, 161, 50, 47, 216, 229, 73, 151, 14, 60, 188, 88, 2, 103, 200 }, .{ 10, 195, 84, 210, 165, 177, 193, 11, 63, 59, 59, 73, 83, 8, 211, 119, 167, 172, 106, 189, 158, 176, 147, 115 }, .{ 47, 81, 129, 135, 134, 252, 100, 83, 71, 12, 140, 243, 63, 122, 86, 245, 42, 42, 241, 136, 201, 9, 193, 252 }, .{ 170, 233, 46, 34, 1, 49, 31, 159, 43, 194, 255, 250, 238, 235, 11, 137, 139, 174, 232, 218, 17, 15, 199, 212 }, .{ 132, 31, 180, 100, 203, 61, 184, 132, 106, 191, 245, 34, 255, 94, 125, 63, 39, 89, 162, 44, 150, 6, 86, 71 }, .{ 19, 11, 118, 113, 45, 136, 1, 131, 109, 216, 171, 179, 28, 42, 103, 24, 252, 156, 18, 134, 224, 105, 58, 168 }, .{ 146, 238, 246, 79, 233, 208, 33, 128, 85, 213, 209, 203, 49, 193, 59, 142, 187, 121, 194, 149, 117, 220, 105, 188 }, .{ 68, 108, 58, 208, 249, 41, 138, 43, 10, 9, 102, 164, 234, 182, 6, 248, 99, 230, 139, 86, 82, 84, 150, 155 }, .{ 10, 139, 224, 157, 203, 141, 137, 124, 212, 149, 154, 152, 41, 150, 46, 31, 123, 68, 65, 29, 54, 17, 173, 164 }, .{ 95, 13, 160, 101, 116, 7, 111, 163, 248, 107, 138, 1, 254, 167, 124, 100, 176, 45, 209, 26, 166, 5, 13, 95 }, .{ 78, 127, 196, 180, 45, 165, 232, 58, 100, 121, 77, 141, 209, 53, 238, 246, 190, 176, 64, 207, 157, 244, 22, 86 }, .{ 102, 20, 129, 118, 182, 237, 128, 94, 118, 229, 26, 137, 42, 152, 201, 75, 227, 101, 210, 196, 118, 39, 15, 218 }, .{ 91, 158, 91, 31, 46, 30, 103, 166, 43, 113, 75, 176, 52, 222, 66, 143, 193, 238, 221, 249, 244, 163, 214, 254 }, .{ 73, 49, 14, 141, 237, 96, 218, 165, 100, 21, 169, 133, 96, 73, 161, 107, 133, 162, 147, 78, 107, 212, 108, 166 }, .{ 66, 112, 205, 199, 2, 80, 75, 66, 50, 173, 203, 48, 68, 172, 190, 153, 156, 152, 244, 54, 32, 105, 239, 243 }, .{ 243, 108, 82, 2, 174, 173, 35, 88, 252, 209, 149, 252, 165, 4, 29, 120, 133, 208, 123, 70, 145, 127, 6, 108 }, .{ 27, 165, 49, 166, 177, 103, 18, 25, 189, 140, 150, 78, 172, 122, 203, 62, 142, 90, 18, 245, 37, 238, 144, 194 }, .{ 162, 197, 134, 128, 209, 119, 210, 85, 216, 168, 106, 63, 1, 141, 50, 109, 23, 41, 89, 15, 92, 182, 237, 241 }, .{ 0, 137, 51, 42, 130, 51, 175, 15, 164, 59, 143, 207, 105, 141, 131, 12, 248, 90, 73, 138, 8, 227, 198, 124 }, .{ 193, 253, 154, 17, 144, 40, 199, 13, 98, 107, 210, 32, 255, 255, 1, 84, 42, 203, 132, 196, 133, 150, 181, 12 }, .{ 84, 251, 199, 203, 170, 197, 250, 43, 16, 253, 225, 165, 96, 221, 191, 224, 115, 164, 67, 175, 52, 92, 30, 61 }, .{ 87, 6, 102, 139, 89, 69, 87, 32, 201, 100, 156, 203, 119, 181, 64, 194, 81, 96, 145, 50, 100, 43, 116, 136 }, .{ 153, 113, 235, 43, 90, 193, 206, 211, 169, 124, 78, 221, 17, 42, 58, 52, 198, 112, 111, 193, 71, 131, 81, 190 }, .{ 177, 74, 118, 55, 72, 84, 97, 234, 13, 40, 82, 50, 177, 194, 157, 219, 209, 59, 78, 93, 7, 239, 159, 124 }, .{ 67, 243, 151, 210, 82, 93, 232, 46, 137, 81, 6, 136, 40, 114, 229, 189, 201, 48, 226, 221, 69, 177, 176, 97 }, .{ 207, 131, 5, 207, 31, 193, 74, 215, 119, 148, 115, 197, 150, 14, 202, 86, 31, 82, 147, 115, 64, 141, 51, 102 }, .{ 182, 229, 200, 160, 65, 224, 21, 101, 182, 206, 204, 217, 63, 111, 98, 133, 57, 237, 91, 204, 94, 72, 175, 78 }, .{ 180, 112, 2, 152, 140, 245, 48, 212, 121, 174, 54, 209, 251, 21, 110, 109, 104, 14, 116, 242, 244, 222, 125, 184 }, .{ 42, 238, 180, 93, 183, 16, 247, 219, 144, 246, 214, 111, 159, 252, 246, 244, 34, 206, 177, 14, 20, 114, 121, 92 }, .{ 243, 243, 128, 164, 118, 59, 55, 3, 14, 143, 193, 184, 236, 206, 237, 237, 87, 79, 160, 67, 149, 22, 94, 6 }, .{ 113, 93, 65, 60, 88, 122, 48, 247, 137, 125, 115, 200, 246, 27, 146, 227, 23, 145, 89, 1, 132, 200, 215, 206 }, .{ 231, 237, 30, 64, 174, 22, 111, 117, 82, 221, 187, 161, 107, 76, 24, 98, 44, 204, 48, 26, 254, 201, 180, 182 }, .{ 115, 75, 38, 135, 239, 100, 92, 91, 237, 227, 152, 150, 82, 90, 174, 193, 103, 59, 9, 199, 99, 231, 139, 202 }, .{ 254, 62, 233, 70, 221, 178, 219, 144, 111, 82, 54, 225, 16, 21, 251, 8, 39, 72, 54, 7, 189, 137, 65, 175 }, .{ 212, 31, 51, 38, 91, 142, 51, 165, 97, 104, 233, 84, 87, 208, 104, 100, 10, 58, 118, 48, 10, 211, 71, 64 }, .{ 75, 152, 233, 83, 32, 107, 137, 25, 33, 161, 235, 227, 87, 154, 222, 241, 49, 117, 213, 254, 222, 100, 129, 133 }, .{ 251, 140, 80, 250, 109, 176, 177, 57, 79, 0, 43, 187, 141, 119, 234, 180, 151, 58, 55, 92, 133, 55, 223, 149 }, .{ 95, 186, 135, 21, 58, 167, 35, 113, 56, 130, 27, 251, 231, 104, 12, 233, 85, 147, 60, 65, 26, 102, 193, 2 }, .{ 231, 205, 28, 123, 77, 168, 197, 96, 0, 26, 52, 76, 43, 133, 33, 136, 169, 44, 86, 227, 151, 196, 11, 40 }, .{ 140, 130, 228, 219, 52, 83, 136, 231, 221, 53, 117, 101, 138, 238, 159, 140, 117, 144, 124, 29, 102, 168, 60, 205 }, .{ 20, 3, 22, 138, 17, 179, 87, 178, 169, 11, 106, 130, 60, 143, 155, 133, 94, 247, 31, 184, 130, 212, 122, 123 }, .{ 13, 62, 216, 172, 125, 48, 37, 6, 153, 148, 28, 206, 235, 72, 229, 167, 86, 104, 163, 224, 77, 90, 3, 90 }, .{ 114, 179, 223, 199, 128, 86, 91, 236, 254, 128, 86, 143, 182, 195, 142, 23, 197, 89, 53, 98, 134, 202, 6, 52 }, .{ 126, 118, 123, 30, 224, 157, 119, 139, 225, 161, 194, 212, 130, 120, 165, 67, 124, 154, 175, 74, 15, 24, 81, 248 }, .{ 123, 90, 188, 175, 128, 249, 137, 81, 119, 175, 158, 90, 126, 230, 72, 85, 213, 1, 245, 140, 79, 64, 211, 7 }, .{ 225, 190, 180, 172, 121, 111, 95, 142, 45, 78, 195, 72, 69, 127, 72, 140, 17, 174, 162, 64, 247, 242, 17, 250 }, .{ 76, 10, 143, 193, 42, 177, 179, 167, 177, 235, 122, 48, 56, 73, 118, 205, 44, 166, 205, 179, 76, 73, 179, 50 }, .{ 208, 2, 126, 245, 78, 254, 170, 202, 183, 52, 16, 187, 105, 176, 117, 96, 18, 163, 32, 166, 241, 170, 133, 67 }, .{ 54, 106, 148, 111, 109, 204, 199, 221, 191, 12, 166, 215, 45, 52, 13, 199, 227, 253, 224, 131, 188, 66, 56, 254 }, .{ 111, 171, 248, 81, 145, 21, 158, 12, 192, 237, 161, 28, 213, 234, 9, 229, 88, 148, 126, 132, 146, 66, 210, 246 }, .{ 30, 2, 55, 3, 15, 216, 238, 86, 57, 216, 75, 9, 184, 112, 211, 132, 157, 52, 183, 87, 142, 9, 184, 90 }, .{ 12, 195, 207, 142, 31, 29, 235, 136, 145, 164, 191, 77, 177, 138, 6, 81, 62, 126, 226, 98, 50, 226, 111, 134 }, .{ 59, 202, 10, 142, 16, 122, 77, 197, 57, 114, 94, 33, 83, 23, 51, 220, 228, 59, 204, 60, 34, 151, 1, 140 }, .{ 151, 10, 73, 28, 190, 14, 78, 174, 69, 229, 249, 171, 218, 79, 68, 194, 184, 117, 149, 32, 80, 11, 198, 157 }, .{ 238, 149, 100, 197, 247, 6, 71, 234, 163, 44, 144, 81, 189, 96, 104, 120, 141, 216, 237, 106, 167, 16, 89, 43 }, .{ 231, 167, 246, 155, 107, 147, 228, 220, 0, 8, 211, 254, 11, 54, 202, 41, 95, 30, 16, 176, 196, 24, 167, 76 }, .{ 50, 12, 64, 221, 147, 177, 245, 77, 190, 196, 130, 29, 11, 88, 54, 145, 84, 227, 137, 111, 100, 212, 144, 1 }, .{ 104, 29, 179, 131, 38, 111, 244, 119, 182, 125, 35, 152, 215, 212, 91, 185, 190, 250, 15, 253, 88, 79, 226, 147 }, .{ 193, 231, 145, 200, 16, 106, 245, 69, 29, 19, 185, 178, 198, 106, 51, 35, 231, 186, 161, 105, 61, 139, 53, 218 }, .{ 189, 147, 30, 70, 225, 252, 227, 164, 30, 93, 195, 125, 127, 166, 112, 109, 177, 236, 237, 90, 13, 50, 169, 70 }, .{ 204, 195, 176, 112, 253, 4, 1, 24, 217, 89, 250, 64, 134, 20, 246, 218, 101, 47, 241, 107, 111, 247, 238, 192 }, .{ 26, 233, 117, 206, 204, 49, 80, 113, 218, 70, 43, 239, 213, 206, 47, 204, 208, 73, 16, 139, 154, 98, 246, 156 }, .{ 236, 236, 76, 177, 72, 25, 185, 17, 22, 179, 216, 164, 104, 153, 185, 197, 77, 198, 31, 247, 92, 58, 43, 203 }, .{ 54, 239, 10, 23, 131, 110, 170, 11, 14, 96, 236, 211, 83, 221, 50, 194, 102, 122, 53, 81, 207, 254, 215, 43 }, .{ 155, 163, 164, 192, 123, 54, 201, 95, 77, 45, 71, 130, 190, 170, 68, 184, 207, 51, 36, 63, 250, 207, 58, 5 }, .{ 103, 43, 117, 124, 180, 195, 3, 76, 232, 216, 87, 197, 197, 64, 87, 112, 78, 115, 233, 52, 193, 196, 199, 153 }, .{ 212, 236, 199, 191, 187, 5, 75, 207, 212, 5, 181, 55, 86, 11, 213, 249, 168, 150, 12, 111, 119, 187, 198, 129 }, .{ 5, 19, 224, 41, 103, 125, 19, 216, 73, 181, 14, 150, 6, 117, 231, 91, 121, 44, 219, 199, 51, 208, 34, 224 }, .{ 169, 249, 106, 86, 252, 237, 43, 97, 193, 145, 118, 210, 237, 252, 42, 237, 191, 135, 144, 251, 93, 222, 180, 179 }, .{ 138, 52, 81, 70, 92, 205, 141, 225, 127, 115, 106, 187, 219, 11, 140, 34, 105, 44, 96, 57, 253, 194, 253, 162 }, .{ 240, 245, 185, 183, 96, 236, 183, 21, 120, 33, 181, 73, 111, 81, 229, 229, 251, 223, 238, 187, 186, 82, 179, 23 }, .{ 57, 149, 241, 251, 168, 51, 123, 148, 107, 160, 5, 65, 126, 249, 89, 198, 41, 141, 41, 90, 170, 172, 25, 83 }, .{ 246, 227, 105, 73, 137, 91, 227, 133, 237, 249, 121, 121, 130, 6, 78, 195, 4, 22, 73, 91, 147, 161, 79, 143 }, .{ 48, 91, 149, 164, 13, 254, 65, 212, 188, 17, 134, 205, 187, 69, 36, 102, 39, 117, 185, 70, 249, 148, 93, 69 }, .{ 222, 218, 71, 141, 164, 62, 235, 176, 51, 187, 205, 118, 55, 90, 65, 218, 122, 51, 179, 171, 173, 92, 179, 32 }, .{ 203, 53, 153, 244, 228, 184, 73, 228, 181, 45, 155, 231, 103, 227, 31, 20, 226, 62, 8, 132, 245, 217, 90, 163 }, .{ 77, 41, 241, 180, 202, 250, 98, 38, 191, 183, 168, 63, 229, 249, 240, 140, 212, 245, 180, 69, 133, 144, 98, 191 }, .{ 241, 55, 19, 144, 240, 50, 108, 122, 57, 130, 188, 247, 119, 171, 171, 97, 182, 8, 191, 143, 229, 5, 172, 92 }, .{ 136, 255, 30, 70, 184, 209, 29, 254, 112, 149, 230, 36, 123, 83, 130, 135, 220, 207, 15, 228, 66, 136, 160, 212 }, .{ 169, 254, 128, 25, 46, 249, 137, 56, 215, 58, 112, 95, 164, 79, 190, 80, 74, 123, 132, 58, 153, 2, 225, 133 }, .{ 27, 80, 58, 238, 232, 122, 8, 148, 144, 14, 106, 207, 193, 209, 132, 106, 161, 240, 188, 245, 143, 232, 35, 33 }, .{ 8, 228, 155, 102, 223, 184, 152, 79, 120, 80, 172, 105, 170, 214, 185, 172, 151, 170, 221, 130, 211, 105, 43, 195 }, .{ 181, 74, 41, 120, 243, 191, 191, 252, 148, 62, 103, 101, 176, 127, 222, 85, 170, 162, 40, 212, 4, 243, 193, 207 }, .{ 192, 242, 33, 194, 150, 243, 53, 78, 254, 233, 254, 215, 39, 234, 115, 19, 2, 100, 210, 204, 25, 145, 231, 146 }, .{ 227, 198, 213, 118, 181, 90, 191, 210, 111, 237, 42, 32, 245, 175, 136, 28, 130, 129, 148, 102, 141, 37, 196, 104 }, .{ 43, 16, 38, 57, 71, 228, 208, 111, 139, 70, 67, 161, 210, 126, 119, 88, 43, 231, 181, 123, 115, 145, 182, 253 }, .{ 183, 240, 203, 244, 143, 2, 113, 255, 67, 197, 242, 17, 248, 108, 214, 112, 33, 79, 45, 185, 132, 75, 230, 32 }, .{ 65, 80, 93, 19, 241, 127, 28, 42, 94, 178, 209, 28, 234, 81, 78, 172, 123, 232, 161, 138, 247, 232, 171, 163 }, .{ 76, 99, 93, 116, 188, 254, 186, 198, 249, 67, 242, 163, 204, 163, 244, 81, 93, 41, 185, 32, 149, 168, 61, 86 }, .{ 255, 64, 69, 30, 24, 142, 15, 122, 83, 37, 120, 9, 3, 127, 108, 159, 193, 151, 37, 215, 11, 190, 140, 29 }, .{ 125, 140, 30, 188, 162, 253, 30, 128, 223, 147, 82, 231, 139, 207, 66, 133, 210, 241, 121, 172, 192, 43, 154, 18 }, .{ 97, 132, 97, 29, 209, 185, 41, 6, 2, 152, 29, 174, 17, 131, 124, 117, 21, 240, 174, 203, 115, 40, 84, 180 }, .{ 4, 42, 96, 21, 104, 0, 178, 182, 206, 202, 20, 210, 157, 101, 84, 150, 65, 253, 238, 161, 239, 188, 248, 207 }, .{ 78, 101, 98, 84, 19, 51, 39, 210, 114, 217, 96, 71, 168, 138, 5, 250, 11, 49, 65, 114, 220, 136, 245, 88 }, .{ 68, 145, 188, 213, 34, 168, 34, 66, 138, 96, 93, 168, 11, 56, 221, 99, 98, 19, 182, 185, 30, 147, 40, 132 }, .{ 33, 221, 244, 25, 135, 78, 244, 251, 169, 102, 178, 98, 138, 64, 191, 49, 7, 203, 33, 56, 28, 17, 158, 218 }, .{ 111, 26, 94, 241, 75, 197, 143, 200, 135, 72, 27, 132, 39, 10, 148, 68, 64, 233, 10, 180, 215, 201, 102, 47 }, .{ 81, 182, 222, 144, 60, 87, 165, 216, 41, 80, 17, 211, 6, 22, 123, 249, 13, 255, 114, 185, 219, 194, 102, 150 }, .{ 199, 214, 138, 54, 230, 76, 144, 89, 222, 176, 186, 29, 106, 206, 65, 86, 211, 59, 67, 44, 132, 180, 138, 179 }, .{ 45, 235, 129, 250, 170, 107, 213, 8, 54, 185, 244, 195, 72, 21, 111, 165, 43, 4, 108, 58, 84, 193, 217, 151 }, .{ 191, 35, 3, 226, 230, 248, 197, 243, 83, 146, 51, 5, 241, 192, 213, 135, 181, 132, 118, 221, 57, 235, 52, 119 }, .{ 120, 191, 35, 242, 246, 249, 49, 241, 53, 2, 214, 112, 111, 161, 209, 180, 251, 26, 3, 14, 253, 247, 235, 4 }, .{ 133, 85, 225, 177, 24, 33, 152, 227, 143, 73, 113, 192, 101, 66, 221, 19, 178, 94, 166, 17, 41, 214, 205, 22 }, .{ 86, 36, 69, 165, 136, 125, 212, 208, 78, 152, 89, 215, 113, 29, 20, 154, 45, 221, 78, 70, 132, 204, 141, 174 }, .{ 157, 166, 37, 67, 36, 173, 238, 154, 109, 185, 45, 13, 178, 186, 130, 254, 53, 31, 212, 50, 93, 186, 223, 139 }, .{ 144, 39, 3, 140, 34, 100, 218, 210, 74, 64, 120, 139, 221, 205, 115, 214, 110, 127, 110, 25, 227, 111, 93, 190 }, .{ 144, 179, 0, 197, 222, 173, 58, 50, 95, 56, 61, 140, 33, 196, 4, 99, 210, 205, 144, 244, 82, 222, 53, 175 }, .{ 204, 147, 29, 13, 208, 76, 234, 17, 30, 105, 190, 87, 30, 30, 238, 126, 187, 187, 4, 47, 146, 72, 155, 252 }, .{ 73, 165, 2, 194, 172, 71, 144, 27, 199, 55, 24, 243, 150, 237, 188, 190, 155, 53, 234, 186, 93, 175, 175, 150 }, .{ 115, 90, 204, 169, 59, 49, 225, 236, 141, 237, 164, 103, 48, 29, 160, 161, 73, 47, 122, 73, 105, 49, 182, 135 }, .{ 115, 171, 115, 58, 94, 32, 165, 121, 205, 218, 203, 206, 28, 188, 109, 93, 239, 64, 138, 82, 56, 159, 51, 29 }, .{ 124, 92, 7, 183, 199, 244, 110, 5, 238, 231, 72, 10, 136, 9, 129, 71, 162, 244, 216, 150, 26, 87, 29, 190 }, .{ 33, 156, 9, 26, 12, 151, 67, 201, 202, 38, 92, 165, 122, 130, 14, 226, 187, 107, 165, 234, 47, 122, 247, 22 }, .{ 251, 254, 191, 0, 223, 244, 154, 9, 205, 178, 223, 96, 80, 201, 122, 14, 75, 53, 110, 207, 44, 128, 214, 255 }, .{ 176, 245, 210, 222, 188, 127, 12, 5, 27, 127, 116, 54, 8, 15, 219, 174, 224, 151, 153, 131, 113, 66, 247, 74 }, .{ 144, 206, 91, 18, 156, 122, 61, 69, 26, 207, 188, 14, 131, 159, 217, 86, 105, 138, 206, 78, 12, 24, 123, 59 }, .{ 123, 25, 61, 33, 240, 19, 255, 147, 46, 236, 157, 93, 227, 147, 233, 210, 151, 111, 175, 198, 122, 113, 100, 253 }, .{ 183, 64, 152, 103, 190, 35, 14, 82, 115, 110, 167, 122, 123, 248, 109, 65, 155, 43, 211, 128, 147, 193, 90, 155 }, .{ 45, 127, 173, 47, 241, 200, 137, 71, 203, 160, 80, 72, 200, 44, 239, 11, 133, 121, 38, 41, 209, 159, 142, 208 }, .{ 147, 227, 78, 131, 204, 136, 11, 102, 146, 136, 16, 6, 8, 160, 189, 140, 223, 141, 64, 125, 151, 197, 138, 11 }, .{ 237, 162, 57, 167, 112, 177, 167, 158, 62, 196, 236, 219, 107, 92, 20, 65, 224, 211, 201, 33, 12, 136, 136, 218 }, .{ 134, 90, 29, 148, 90, 233, 217, 191, 184, 171, 177, 206, 92, 241, 46, 123, 86, 69, 194, 132, 194, 148, 8, 86 }, .{ 110, 18, 152, 168, 120, 155, 169, 123, 55, 221, 45, 94, 44, 215, 210, 102, 108, 61, 78, 9, 164, 73, 187, 217 }, .{ 74, 201, 216, 82, 223, 44, 38, 246, 141, 195, 162, 122, 203, 38, 71, 206, 151, 166, 78, 141, 58, 127, 114, 127 }, .{ 21, 137, 183, 139, 78, 43, 165, 27, 29, 117, 43, 238, 175, 235, 31, 88, 197, 214, 117, 81, 30, 197, 188, 141 } }; + var subscription = Subscription.init(1, std.math.maxInt(u64) - 1, std.mem.sliceAsBytes(root_hashes)); + try std.testing.expectEqual(@as(usize, 126), subscription.roots.len); + + const key = subscription.getKey(42069); + try std.testing.expectEqual(bytes("a942f14326b52c8f585107e0184b80cec61da4fc9ecc5f02"), key); + + var frame_data = bytes("e9cad1c6fc6b19dff3c0d452fa14fe6e5eb203f810f848944d63706371d2812be661c1e78a842686e33c4557df35c503740a01d27632ea527eaac9138794c7dd"); + crypto.decrypt(&frame_data, key); + try std.testing.expectEqualStrings("Bonjour le monde------------------------------------------------", &frame_data); +} fn bytes(comptime hex: []const u8) [hex.len / 2]u8 { comptime var result = std.mem.zeroes([hex.len / 2]u8); From a5408273045b925a3609396278903839d07766f5 Mon Sep 17 00:00:00 2001 From: Mark Bundschuh Date: Mon, 10 Feb 2025 16:36:50 -0500 Subject: [PATCH 3/3] fix --- docs/design.pdf | Bin 331523 -> 331523 bytes docs/design.typ | 2 +- docs/pages/page-6.svg | 12 ++++++------ 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/docs/design.pdf b/docs/design.pdf index 352bfe1556ce1c451414c637ae8e6ec55c29b285..0c44d82be212faa3088b42d3c6cec8373dae5852 100644 GIT binary patch delta 1411 zcmZ|G=|2+;0Kjo(C`!)eh%CoUZkl`UBf~b5$bIEno6Io}MkYs1*{mI|cs$snDKbK? zo`)V}l7~kUBDt^dxIT}b=MQ*#^Lz9C{IbfVv&y71NcX-|Ni#=8^=Id=K@p+g}DK< z)u~a@Bz#|86y(`GSV$emop?3K+!TVot%h9@R$2S6KC);N%~Ngk)Hk=Pin+i3?Dc+p z#+GD;G{_4?G`OkU^~cNc6o3fs0GcVF{7CLVh)5u!qhSm6)a9VMAW_qm!|0HcYejFd zl+ygeAl7U;?@Njll8^vj!qp)V?3!UvMKS#1NPhAB4ct(Sno{%<(_tDyH~q?f!2P zhkfaptDg{IHJi+lcl4~#Dbz-R6#Ei%#UUD- z4mD(pqejMYzjvq;Sf|{hO6<5rz2d!kb*(RyECbi5K0>?hNA`vti$XG7Lk 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z@V=2ss{5>@O#i_O4~N>$DV`^m!#MsbtHWeox2%cUsv0#5Oap}Y(jTfj_gSS|ccUd) zv@c=j=60*5^;sIsKl^JMhAUE}+F^DITmp%4hkR`MZ8)@EdVdnv%QDN6_vJzHYZhSM08D@k1G)e5hxG%=h_3jCWeeyPd0uFCLqWn`? zfJ6C!LJu - + - + @@ -1812,15 +1812,15 @@ - + - + - + @@ -1848,7 +1848,7 @@ - +