v1.8.1 [Public Version]

- [Add] .NET6.0 and .NET8.0 support
- [Add] RemoveBioLinksAsync to AccountProcessor
- [Add] AddOrUpdateBioLinkAsync to AccountProcessor
- [Remove] csrftoken and cookies usage
- [Exclude] BouncyCastle library for .NET6.0 or .NET8.0 framworks

Author: ramtinak

src/InstagramApiSharp/Classes/Android/DeviceInfo/ApiRequestMessage.cs

@@ -3,7 +3,6 @@
 using InstagramApiSharp.Helpers;
 using Newtonsoft.Json;
 using InstagramApiSharp.API.Versions;
-using Org.BouncyCastle.Asn1.X500;
 namespace InstagramApiSharp.Classes.Android.DeviceInfo
 {
     public class ApiRequestMessage

src/InstagramApiSharp/Helpers/ExtensionHelper.cs

@@ -21,10 +21,16 @@
 using System.Text;
 using InstagramApiSharp.Classes;
 using System.Net.Http;
+
+#if NETSTANDARD || WINDOWS_UWP || NET461_OR_GREATER
+using Org.BouncyCastle.Cms;
 using Org.BouncyCastle.Security;
 using Org.BouncyCastle.Crypto.Modes;
 using Org.BouncyCastle.Crypto.Engines;
 using Org.BouncyCastle.Crypto.Parameters;
+#elif NET || NETCOREAPP3_1
+using System.Security.Cryptography;
+#endif
 
 namespace InstagramApiSharp
 {
@@ -163,9 +169,10 @@ public static string GenerateJazoest(string guid)
             return "2" + ix;
         }
 
+#if NETSTANDARD || WINDOWS_UWP || NET461_OR_GREATER
         static private readonly SecureRandom secureRandom = new SecureRandom();
 
-        public static string GetEncryptedPassword(this IInstaApi api, string password, long? providedTime = null) 
+        public static string GetEncryptedPassword(this IInstaApi api, string password, long? providedTime = null, uint version = 4) 
         {
             var pubKey = api.GetLoggedUser().PublicKey;
             var pubKeyId = api.GetLoggedUser().PublicKeyId;
@@ -201,11 +208,64 @@ public static string GetEncryptedPassword(this IInstaApi api, string password, l
             if (BitConverter.IsLittleEndian)
                 Array.Reverse(encKeyIdBytes);
             encKeyIdBytes[0] = 1; 
-            var payload = Convert.ToBase64String(encKeyIdBytes.Concat(iv).Concat(buffersSize).Concat(encryptedKey).Concat(tag).Concat(ciphertext).ToArray());
+            var payload = Convert
+                .ToBase64String(encKeyIdBytes
+                .Concat(iv)
+                .Concat(buffersSize)
+                .Concat(encryptedKey)
+                .Concat(tag)
+                .Concat(ciphertext)
+                .ToArray());
+
+            return $"#PWD_INSTAGRAM:{version}:{time}:{payload}";
+        }
+#elif NET || NETCOREAPP3_1
+        private readonly static RandomNumberGenerator RnGenerator = RandomNumberGenerator.Create();
+        private readonly static RSACryptoServiceProvider RsaProvider = new ();
+
+        public static string GetEncryptedPassword(this IInstaApi api, string password, long? providedTime = null, int version = 4)
+        {
+            var pubKey = api.GetLoggedUser().PublicKey;
+            var pubKeyId = api.GetLoggedUser().PublicKeyId;
+            byte[] randKey = new byte[32];
+            byte[] iv = new byte[12];
+            RnGenerator.GetBytes(randKey);
+            RnGenerator.GetBytes(iv);
+
+            long time = providedTime ?? DateTimeOffset.UtcNow.ToUnixTimeSeconds();
+            byte[] pubKEY = Convert.FromBase64String(pubKey);
+            string decodedPubKey = Encoding.UTF8.GetString(pubKEY, 0, pubKEY.Length);
+            decodedPubKey = decodedPubKey.Replace("-----BEGIN PUBLIC KEY-----", "").Replace("-----END PUBLIC KEY-----", "");
+            byte[] publicKeyBytes = Convert.FromBase64String(decodedPubKey.Trim());
+            RsaProvider.ImportSubjectPublicKeyInfo(publicKeyBytes, out _);
+            byte[] encryptedKey = RsaProvider.Encrypt(randKey, false);
+
+            var plaintext = Encoding.UTF8.GetBytes(password);
+
+            byte[] ciphertext = new byte[plaintext.Length];
+            byte[] tag = new byte[16];
+            byte[] associatedData = Encoding.UTF8.GetBytes(time.ToString());
+            AesGcm aesGsm = new (randKey);
+            aesGsm.Encrypt(iv, plaintext, ciphertext, tag, associatedData);
+
+            byte[] encKeyIdBytes = BitConverter.GetBytes(Convert.ToUInt16(pubKeyId));
+            if (BitConverter.IsLittleEndian)
+                Array.Reverse(encKeyIdBytes);
+            encKeyIdBytes[0] = 1;
+            byte[] buffersSize = BitConverter.GetBytes(Convert.ToInt16(encryptedKey.Length));
+            var payload = Convert
+                .ToBase64String(encKeyIdBytes
+                .Concat(iv)
+                .Concat(buffersSize)
+                .Concat(encryptedKey)
+                .Concat(tag)
+                .Concat(ciphertext)
+                .ToArray());
 
-            return $"#PWD_INSTAGRAM:4:{time}:{payload}";
+            return $"#PWD_INSTAGRAM:{version}:{time}:{payload}";
         }
 
+#endif
         public static string GetJson(this InstaLocationShort location)
         {
             if (location == null)

src/InstagramApiSharp/InstagramApiSharp.csproj

@@ -289,6 +289,7 @@ v1.3.3.0
     <PackageIcon>insta.png</PackageIcon>
     <NeutralLanguage>en-US</NeutralLanguage>
     <PackageLicenseFile>LICENSE.txt</PackageLicenseFile>
+	<PackageReadmeFile>readme.md</PackageReadmeFile>
   </PropertyGroup>
 
   <ItemGroup>
@@ -316,7 +317,7 @@ v1.3.3.0
 
   <ItemGroup>
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageReference Include="Portable.BouncyCastle" Version="1.9.0" />
+    <PackageReference Include="Portable.BouncyCastle" Version="1.9.0" Condition="'$(TargetFramework)' != 'net6.0' AND '$(TargetFramework)' != 'net8.0'"/>
     <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform" Version="6.2.14" Condition="'$(TargetFramework)' == 'uap10.0'" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" Condition="'$(TargetFramework)' == 'net461'" />
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />