Gramine-SGX Integration

go-client/go_client.go

@@ -0,0 +1,97 @@
+package client
+
+import (
+	"crypto/tls"
+	"encoding/json"
+	"flag"
+	"fmt"
+	"os"
+
+	"github.com/intel/trustauthority-client/go-connector"
+)
+
+type TeeClient interface {
+	Token() (string, error)
+}
+
+type attestClient struct {
+	config    *connector.Config
+	adapter   connector.EvidenceAdapter
+	connector connector.Connector
+}
+
+type Config struct {
+	TrustAuthorityUrl    string `json:"trustauthority_url"`
+	TrustAuthorityApiUrl string `json:"trustauthority_api_url"`
+	TrustAuthorityApiKey string `json:"trustauthority_api_key"`
+}
+
+func New(cfg *connector.Config, adp connector.EvidenceAdapter) (TeeClient, error) {
+	return &attestClient{
+		config:  cfg,
+		adapter: adp,
+	}, nil
+}
+
+func NewClient(adp connector.EvidenceAdapter) (teecli TeeClient, err error) {
+
+	var configFile string
+	flag.StringVar(&configFile, "config", "config.json", "Config file containing trustauthority details in JSON format")
+	flag.Parse()
+
+	configJson, err := os.ReadFile(configFile)
+	if err != nil {
+		return
+	}
+
+	var config Config
+	err = json.Unmarshal(configJson, &config)
+	if err != nil {
+		return
+	}
+
+	if config.TrustAuthorityUrl == "" || config.TrustAuthorityApiUrl == "" || config.TrustAuthorityApiKey == "" {
+		fmt.Println("Either Trust Authority URL, API URL or API Key is missing in config")
+		os.Exit(1)
+	}
+
+	cfg := &connector.Config{
+		TlsCfg: &tls.Config{
+			InsecureSkipVerify: true,
+		},
+		BaseUrl: config.TrustAuthorityUrl,
+		ApiUrl:  config.TrustAuthorityApiUrl,
+		ApiKey:  config.TrustAuthorityApiKey,
+	}
+	return New(cfg, adp)
+}
+
+func (atclient *attestClient) Token() (tokenstr string, err error) {
+
+	atclient.connector, err = connector.New(atclient.config)
+	if err != nil {
+		return
+	}
+
+	req := connector.GetNonceArgs{
+		RequestId: "nonce_req",
+	}
+	resp, err := atclient.connector.GetNonce(req)
+	if err != nil {
+		panic(err)
+	}
+
+	evidence, err := atclient.adapter.CollectEvidence(append(resp.Nonce.Val, resp.Nonce.Iat[:]...))
+	if err != nil {
+		panic(err)
+	}
+	tokenargs := connector.GetTokenArgs{resp.Nonce, evidence, nil, "req1"}
+	// dump.P(tokenargs)
+
+	resp2, err := atclient.connector.GetToken(tokenargs)
+	if err != nil {
+		panic(err)
+	}
+	tokenstr = resp2.Token
+	return
+}

go-examples/README.md

@@ -0,0 +1,28 @@
+# Gramine-SGX Integration MVP
+
+## Deploy Gramine-SGX
+
+https://gramine.readthedocs.io/
+
+## Build
+
+```sh
+make SGX=1
+```
+
+## Config
+
+1) Visit https://trustauthority.intel.com/ to get a API key.
+2) Set the API key in lib-app/config.json file
+
+## Run
+
+```sh
+gramine-sgx app
+```
+
+## Clean
+
+```sh
+make clean
+```

go-examples/gramine-sgx/.gitignore

@@ -0,0 +1,7 @@
+**/app.manifest.sgx
+**/app.sig
+**/lib-app/app
+**/app.manifest
+**/config.json
+**/*.patch
+.history/

go-examples/gramine-sgx/Makefile

@@ -0,0 +1,61 @@
+
+ifeq ($(DEBUG),1)
+GRAMINE_LOG_LEVEL = debug
+else
+GRAMINE_LOG_LEVEL = error
+endif
+
+.PHONY: all
+all: lib-app/app app.manifest
+ifeq ($(SGX),1)
+all: app.manifest.sgx app.sig
+endif
+
+lib-app/app: lib-app/main.go
+	cd lib-app && go build . 
+
+app.manifest: app.manifest.template
+	gramine-manifest \
+		-Dlog_level=$(GRAMINE_LOG_LEVEL) \
+		$< $@
+
+# gramine-sgx-sign generates both a .sig file and a .manifest.sgx file. This is somewhat
+# hard to express properly in Make. The simple solution would be to use
+# "Rules with Grouped Targets" (`&:`), however make on Ubuntu <= 20.04 doesn't support it.
+#
+# Simply using a normal rule with "two targets" is equivalent to creating separate rules
+# for each of the targets, and when using `make -j`, this might cause two instances
+# of gramine-sgx-sign to get launched simultaneously, potentially breaking the build.
+#
+# As a workaround, we use a dummy intermediate target, and mark both files as depending on it, to
+# get the dependency graph we want. We mark this dummy target as .INTERMEDIATE, which means
+# that make will consider the source tree up-to-date even if the sgx_sign file doesn't exist,
+# as long as the other dependencies check out. This is in contrast to .PHONY, which would
+# be rebuilt on every invocation of make.
+app.sig app.manifest.sgx: sgx_sign
+	@:
+
+.INTERMEDIATE: sgx_sign
+sgx_sign: app.manifest lib-app/app
+	gramine-sgx-sign \
+		--manifest $< \
+		--output $<.sgx
+
+ifeq ($(SGX),)
+GRAMINE = gramine-direct
+else
+GRAMINE = gramine-sgx
+endif
+
+.PHONY: check
+check: all
+	$(GRAMINE) app > OUTPUT
+	@echo "[ Success ]"
+
+.PHONY: clean
+clean:
+	$(RM) *.token *.sig *.manifest.sgx *.manifest lib-app/app OUTPUT
+	cd lib-app && go clean
+
+.PHONY: distclean
+distclean: clean

go-examples/gramine-sgx/app.manifest.template

@@ -0,0 +1,31 @@
+# ITA client library integration manifest file example
+
+loader.entrypoint = "file:{{ gramine.libos }}"
+loader.argv = ["--config", "config.json"]
+libos.entrypoint = "/app"
+loader.log_level = "{{ log_level }}"
+
+loader.env.LD_LIBRARY_PATH = "/lib"
+
+fs.mounts = [
+  { path = "/lib", uri = "file:{{ gramine.runtimedir() }}" },
+  { path = "/app", uri = "file:lib-app/app" },
+  { path = "/config.json", uri = "file:lib-app/config.json" },
+]
+
+sgx.remote_attestation = "dcap"
+sgx.ra_client_spid = ""
+
+sgx.enclave_size = "4G"
+sgx.max_threads = 128
+sgx.debug = false
+sgx.edmm_enable = {{ 'true' if env.get('EDMM', '0') == '1' else 'false' }}
+
+sys.enable_extra_runtime_domain_names_conf = true
+
+sgx.trusted_files = [
+  "file:{{ gramine.libos }}",
+  "file:lib-app/app",
+  "file:lib-app/config.json",
+  "file:{{ gramine.runtimedir() }}/",
+]

go-examples/gramine-sgx/lib-app/go.mod

@@ -0,0 +1,26 @@
+module github.com/bigdata-memory/app
+
+go 1.21.1
+
+require github.com/intel/trustauthority-client v1.0.1
+
+require (
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.2.0 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/golang-jwt/jwt/v4 v4.5.0 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
+	github.com/hashicorp/go-retryablehttp v0.7.4 // indirect
+	github.com/lestrrat-go/blackmagic v1.0.1 // indirect
+	github.com/lestrrat-go/httpcc v1.0.1 // indirect
+	github.com/lestrrat-go/httprc v1.0.4 // indirect
+	github.com/lestrrat-go/iter v1.0.2 // indirect
+	github.com/lestrrat-go/jwx/v2 v2.0.11 // indirect
+	github.com/lestrrat-go/option v1.0.1 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/segmentio/asm v1.2.0 // indirect
+	golang.org/x/crypto v0.10.0 // indirect
+	golang.org/x/sys v0.10.0 // indirect
+)
+
+replace github.com/intel/trustauthority-client => ../../../

go-examples/gramine-sgx/lib-app/go.sum

@@ -0,0 +1,91 @@
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+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

go-examples/gramine-sgx/lib-app/main.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"crypto/rand"
+	"fmt"
+
+	"github.com/intel/trustauthority-client/go-utility"
+)
+
+func main() {
+
+	// Generate a random user runtime data
+	blk, err := GenRandomBytes(10)
+	if err != nil {
+		panic(err)
+	}
+
+	// Retrieve a token of Intel Trust Authority for this Gramine SGX enclave
+	tk, err := utility.GraToken(blk)
+	if err != nil {
+		panic(err)
+	}
+
+	// Display the token
+	fmt.Printf("\nTOKEN: %s\n", tk)
+
+}
+
+func GenRandomBytes(size int) (blk []byte, err error) {
+	blk = make([]byte, size)
+	_, err = rand.Read(blk)
+	return
+}