add sign and verify test vectors (#292)

* add sign and verify test vectors

* test vectors to kotlin

* rename

* updates

* update

* updates

* rename

bound/kt/src/main/kotlin/web5/sdk/crypto/verifiers/Ed25519Verifier.kt

@@ -0,0 +1,27 @@
+package web5.sdk.crypto.verifiers
+
+import web5.sdk.crypto.keys.Jwk
+import web5.sdk.rust.Ed25519Verifier as RustCoreEd25519Verifier
+
+class Ed25519Verifier : Verifier {
+    private val rustCoreVerifier: RustCoreEd25519Verifier
+
+    constructor(privateKey: Jwk) {
+        this.rustCoreVerifier = RustCoreEd25519Verifier(privateKey.rustCoreJwkData)
+    }
+
+    private constructor(rustCoreVerifier: RustCoreEd25519Verifier) {
+        this.rustCoreVerifier = rustCoreVerifier
+    }
+
+    /**
+     * Implementation of Signer's verify instance method for Ed25519.
+     *
+     * @param message the data to be verified.
+     * @param signature the signature to be verified.
+     * @return ByteArray the signature.
+     */
+    override fun verify(message: ByteArray, signature: ByteArray): Boolean {
+        return rustCoreVerifier.verify(message, signature);
+    }
+}

bound/kt/src/main/kotlin/web5/sdk/crypto/verifiers/Verifier.kt

@@ -0,0 +1,5 @@
+package web5.sdk.crypto.verifiers
+
+import web5.sdk.rust.Verifier as RustCoreVerifier
+
+typealias Verifier = RustCoreVerifier

bound/kt/src/test/kotlin/web5/sdk/Web5TestVectorsTest.kt

@@ -0,0 +1,212 @@
+package web5.sdk
+
+import com.fasterxml.jackson.annotation.JsonInclude
+import com.fasterxml.jackson.core.type.TypeReference
+import com.fasterxml.jackson.databind.DeserializationFeature
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.databind.PropertyNamingStrategy
+import com.fasterxml.jackson.databind.SerializationFeature
+import com.fasterxml.jackson.databind.cfg.MapperConfig
+import com.fasterxml.jackson.databind.introspect.AnnotatedField
+import com.fasterxml.jackson.databind.introspect.AnnotatedMethod
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.fasterxml.jackson.module.kotlin.registerKotlinModule
+import org.junit.jupiter.api.Test
+import java.io.File
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.Nested
+import web5.sdk.crypto.keys.Jwk
+import web5.sdk.crypto.signers.Ed25519Signer
+import web5.sdk.crypto.verifiers.Ed25519Verifier
+import web5.sdk.dids.Document
+import web5.sdk.rust.DocumentMetadataData
+import web5.sdk.rust.ResolutionMetadataData
+
+class Web5TestVectorsTest {
+
+    class TestVectors<I, O>(
+        val description: String,
+        val vectors: List<TestVector<I, O>>
+    )
+
+    class TestVector<I, O>(
+        val description: String,
+        val input: I,
+        val output: O?,
+        val errors: Boolean? = false,
+    )
+
+    data class SignTestInput(
+        val data: String,
+        val key: TestVectorJwk,
+    )
+
+    data class TestVectorJwk(
+        val crv: String,
+        val d: String?,
+        val kid: String,
+        val kty: String,
+        val x: String
+    )
+
+    data class VerifyTestInput(
+        val key: Map<String, Any>,
+        val signature: String,
+        val data: String
+    )
+
+    data class DidJwkResolveTestOutput(
+        val context: String?,
+        val didDocument: Document?,
+        val didDocumentMetadata: DocumentMetadataData,
+        val didResolutionMetadata: ResolutionMetadataData?
+    )
+
+    @Nested
+    inner class Web5TestVectorsCryptoEd25519 {
+        @Test
+        fun sign() {
+            val typeRef = object : TypeReference<TestVectors<SignTestInput, String>>() {}
+            val testVectors =
+                Json.jsonMapper.readValue(File("../../web5-spec/test-vectors/crypto_ed25519/sign.json"), typeRef)
+
+            testVectors.vectors.forEach { vector ->
+                val inputByteArray = hexStringToByteArray(vector.input.data)
+                val testVectorJwk = vector.input.key
+
+                val ed25519Jwk = Jwk(
+                    kty = testVectorJwk.kty,
+                    crv = testVectorJwk.crv,
+                    d = testVectorJwk.d,
+                    x = testVectorJwk.x,
+                    alg = null,
+                    y = null
+                )
+                val signer = Ed25519Signer(ed25519Jwk)
+
+                if (vector.errors == true) {
+                    assertThrows(Exception::class.java) {
+                        signer.sign(inputByteArray)
+                    }
+                } else {
+                    val signedByteArray = signer.sign(inputByteArray)
+                    val signedHex = byteArrayToHexString(signedByteArray)
+                    assertEquals(vector.output, signedHex)
+                }
+            }
+        }
+
+        @Test
+        fun verify() {
+            val typeRef = object : TypeReference<TestVectors<VerifyTestInput, Boolean>>() {}
+            val testVectors =
+                Json.jsonMapper.readValue(File("../../web5-spec/test-vectors/crypto_ed25519/verify.json"), typeRef)
+
+            testVectors.vectors.forEach { vector ->
+                val inputByteArray = hexStringToByteArray(vector.input.data)
+                val signatureByteArray = hexStringToByteArray(vector.input.signature)
+                val testVectorJwk = Json.jsonMapper.convertValue(vector.input.key, TestVectorJwk::class.java)
+
+                val ed25519Jwk = Jwk(
+                    kty = testVectorJwk.kty,
+                    crv = testVectorJwk.crv,
+                    d = null,
+                    x = testVectorJwk.x,
+                    alg = null,
+                    y = null
+                )
+                val verifier = Ed25519Verifier(ed25519Jwk)
+
+                if (vector.errors == true) {
+                    assertThrows(Exception::class.java) {
+                        verifier.verify(inputByteArray, signatureByteArray)
+                    }
+                } else {
+                    val verified = verifier.verify(inputByteArray, signatureByteArray)
+                    assertEquals(vector.output, verified)
+                }
+            }
+        }
+
+        private fun hexStringToByteArray(s: String): ByteArray {
+            val len = s.length
+            val data = ByteArray(len / 2)
+            for (i in 0 until len step 2) {
+                data[i / 2] = ((Character.digit(s[i], 16) shl 4) + Character.digit(s[i + 1], 16)).toByte()
+            }
+            return data
+        }
+
+        private fun byteArrayToHexString(bytes: ByteArray): String {
+            return bytes.joinToString("") { "%02x".format(it) }
+        }
+    }
+
+    @Nested
+    inner class Web5TestVectorsDidJwk {
+
+        // This is so we can parse the test vector converting metadata errors in the test vectors like invalidDid to the INVALID-DID enum
+        internal inner class CustomEnumNamingStrategy : PropertyNamingStrategy() {
+            override fun nameForField(config: MapperConfig<*>?, field: AnnotatedField?, defaultName: String?): String? {
+                if (field?.type?.isEnumType == true) {
+                    return convertToUpperSnakeCase(defaultName)
+                }
+                return defaultName
+            }
+
+            override fun nameForGetterMethod(config: MapperConfig<*>?, method: AnnotatedMethod?, defaultName: String?): String {
+                if (method?.rawReturnType?.isEnum == true) {
+                    return convertToUpperSnakeCase(defaultName)
+                }
+                return defaultName!!
+            }
+
+            override fun nameForSetterMethod(config: MapperConfig<*>?, method: AnnotatedMethod?, defaultName: String?): String {
+                if (method?.rawParameterTypes?.firstOrNull()?.isEnum == true) {
+                    return convertToUpperSnakeCase(defaultName)
+                }
+                return defaultName!!
+            }
+
+            private fun convertToUpperSnakeCase(input: String?): String {
+                return input?.replace("([a-z])([A-Z]+)".toRegex(), "$1_$2")?.uppercase() ?: ""
+            }
+        }
+
+        val jsonMapper: ObjectMapper = jacksonObjectMapper()
+            .registerKotlinModule()
+            .findAndRegisterModules()
+            .setPropertyNamingStrategy(CustomEnumNamingStrategy())
+            .setSerializationInclusion(JsonInclude.Include.NON_NULL)
+            .disable((DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES))
+            .disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
+
+        @Test
+        fun resolve() {
+            val typeRef = object : TypeReference<TestVectors<String, DidJwkResolveTestOutput>>() {}
+
+            val testVectors =
+                jsonMapper.readValue(File("../../web5-spec/test-vectors/did_jwk/resolve.json"), typeRef)
+
+            testVectors.vectors.forEach { vector ->
+                if (vector.errors == true) {
+                    val resolvedDid = web5.sdk.dids.methods.jwk.DidJwk.resolve(vector.input)
+
+                    assertTrue(resolvedDid.resolutionMetadata.error != null)
+
+                    // TODO: parse resolutionMetadata from the test vector correctly
+//                    assertEquals(resolvedDid.resolutionMetadata, vector.output!!.didResolutionMetadata)
+                } else {
+                    val resolvedDid = web5.sdk.dids.methods.jwk.DidJwk.resolve(vector.input)
+
+                    assertEquals(resolvedDid.document!!.id, vector.output!!.didDocument!!.id)
+                    assertEquals(resolvedDid.document!!.verificationMethod, vector.output.didDocument!!.verificationMethod)
+                    assertEquals(resolvedDid.document!!.authentication, vector.output.didDocument.authentication)
+                    assertEquals(resolvedDid.document!!.assertionMethod, vector.output.didDocument.assertionMethod)
+                    assertEquals(resolvedDid.document!!.capabilityDelegation, vector.output.didDocument.capabilityDelegation)
+                    assertEquals(resolvedDid.document!!.capabilityInvocation, vector.output.didDocument.capabilityInvocation)
+                }
+            }
+        }
+    }
+}

bound/kt/src/test/kotlin/web5/sdk/crypto/verifiers/Ed25519VerifierTest.kt

@@ -0,0 +1,41 @@
+package web5.sdk.crypto.verifiers
+
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.Assertions.assertFalse
+import web5.sdk.crypto.keys.Jwk
+import web5.sdk.crypto.signers.Ed25519Signer
+import web5.sdk.rust.ed25519GeneratorGenerate as rustCoreEd25519GeneratorGenerate
+
+class Ed25519VerifierTest {
+
+    @Test
+    fun `test verifier with valid signature`() {
+        val privateJwk = rustCoreEd25519GeneratorGenerate()
+        val ed25519Signer = Ed25519Signer(Jwk.fromRustCoreJwkData(privateJwk))
+
+        val message = "abc".toByteArray()
+        val signature = ed25519Signer.sign(message)
+
+        val ed25519Verifier = Ed25519Verifier(Jwk.fromRustCoreJwkData(privateJwk))
+        val isValid = ed25519Verifier.verify(message, signature)
+
+        assertTrue(isValid, "Signature should be valid")
+    }
+
+    @Test
+    fun `test verifier with invalid signature`() {
+        val privateJwk = rustCoreEd25519GeneratorGenerate()
+        val ed25519Signer = Ed25519Signer(Jwk.fromRustCoreJwkData(privateJwk))
+
+        val message = "abc".toByteArray()
+        val signature = ed25519Signer.sign(message)
+
+        val modifiedMessage = "abcd".toByteArray()
+
+        val ed25519Verifier = Ed25519Verifier(Jwk.fromRustCoreJwkData(privateJwk))
+        val isValid = ed25519Verifier.verify(modifiedMessage, signature)
+
+        assertFalse(isValid, "Signature should be invalid")
+    }
+}