fix: make fixes to ed25519 sign method + improve tests

apollo/src/androidMain/kotlin/org/hyperledger/identus/apollo/utils/KMMEdPrivateKey.kt

@@ -8,14 +8,14 @@ import org.bouncycastle.crypto.signers.Ed25519Signer
  *
  * @property raw The raw byte array representation of the private key.
  */
-actual class KMMEdPrivateKey(val raw: ByteArray) {
+actual class KMMEdPrivateKey actual constructor(val rawBuffer: ByteArray) {
     /**
      * Retrieves the public key associated with a KMMEdPrivateKey.
      *
      * @return The KMMEdPublicKey object representing the public key.
      */
     fun publicKey(): KMMEdPublicKey {
-        val private = Ed25519PrivateKeyParameters(raw, 0)
+        val private = Ed25519PrivateKeyParameters(rawBuffer, 0)
         val public = private.generatePublicKey()
         return KMMEdPublicKey(public.encoded)
     }
@@ -27,7 +27,7 @@ actual class KMMEdPrivateKey(val raw: ByteArray) {
      * @return The signature of the message.
      */
     actual fun sign(message: ByteArray): ByteArray {
-        val privateKeyParameters = Ed25519PrivateKeyParameters(raw, 0)
+        val privateKeyParameters = Ed25519PrivateKeyParameters(rawBuffer, 0)
         val signer = Ed25519Signer()
         signer.init(true, privateKeyParameters)
         signer.update(message, 0, message.size)
@@ -40,7 +40,7 @@ actual class KMMEdPrivateKey(val raw: ByteArray) {
      * @return KMMX25519PrivateKey private key
      */
     actual fun x25519PrivateKey(): KMMX25519PrivateKey {
-        val rawX25519Prv = convertSecretKeyToX25519(this.raw)
+        val rawX25519Prv = convertSecretKeyToX25519(this.rawBuffer)
         return KMMX25519PrivateKey(rawX25519Prv)
     }
 }

apollo/src/androidMain/kotlin/org/hyperledger/identus/apollo/utils/KMMEdPublicKey.kt

@@ -9,7 +9,8 @@ import java.io.ByteArrayInputStream
  *
  * @property raw The raw byte array representation of the public key.
  */
-actual class KMMEdPublicKey(val raw: ByteArray) {
+actual class KMMEdPublicKey actual constructor(val bytes: ByteArray) {
+    val raw = bytes;
     /**
      * Verifies the signature of a message using the provided public key.
      *

apollo/src/appleMain/kotlin/org/hyperledger/identus/apollo/utils/KMMEdPrivateKey.kt

@@ -8,7 +8,7 @@ import swift.cryptoKit.Ed25519
  * @property raw The raw byte array representation of the private key.
  */
 @OptIn(ExperimentalForeignApi::class)
-public actual class KMMEdPrivateKey(val raw: ByteArray) {
+public actual class KMMEdPrivateKey actual constructor(val rawBuffer: ByteArray) {
     /**
      * Represents a private key for the KMMEd cryptographic system.
      *
@@ -26,7 +26,7 @@ public actual class KMMEdPrivateKey(val raw: ByteArray) {
      */
     @Throws(RuntimeException::class)
     actual fun sign(message: ByteArray): ByteArray {
-        val result = Ed25519.signWithPrivateKey(raw.toNSData(), message.toNSData())
+        val result = Ed25519.signWithPrivateKey(rawBuffer.toNSData(), message.toNSData())
         result.failure()?.let { throw RuntimeException(it.localizedDescription()) }
         return result.success()?.toByteArray() ?: throw RuntimeException("Null result")
     }
@@ -39,7 +39,7 @@ public actual class KMMEdPrivateKey(val raw: ByteArray) {
      */
     @Throws(RuntimeException::class)
     fun publicKey(): KMMEdPublicKey {
-        val result = Ed25519.publicKeyWithPrivateKey(raw.toNSData())
+        val result = Ed25519.publicKeyWithPrivateKey(rawBuffer.toNSData())
         result.failure()?.let { throw RuntimeException(it.localizedDescription()) }
         val publicRaw = result.success()?.toByteArray() ?: throw RuntimeException("Null result")
         return KMMEdPublicKey(publicRaw)
@@ -51,7 +51,7 @@ public actual class KMMEdPrivateKey(val raw: ByteArray) {
      * @return KMMX25519PrivateKey private key
      */
     actual fun x25519PrivateKey(): KMMX25519PrivateKey {
-        val rawX25519Prv = convertSecretKeyToX25519(this.raw)
+        val rawX25519Prv = convertSecretKeyToX25519(this.rawBuffer)
         return KMMX25519PrivateKey(rawX25519Prv)
     }
 }

apollo/src/appleMain/kotlin/org/hyperledger/identus/apollo/utils/KMMEdPublicKey.kt

@@ -9,7 +9,9 @@ import swift.cryptoKit.Ed25519
  * @property raw The raw byte array representation of the public key.
  */
 @OptIn(ExperimentalForeignApi::class)
-public actual class KMMEdPublicKey(val raw: ByteArray = ByteArray(0)) {
+public actual class KMMEdPublicKey actual constructor(bytes: ByteArray) {
+    val raw: ByteArray = bytes;
+
     /**
      * Verifies a message signature using a public key.
      *

apollo/src/appleTest/kotlin/org/hyperledger/identus/apollo/secp256k1/KMMEdKeyPairTest.kt

@@ -0,0 +1,18 @@
+package org.hyperledger.identus.apollo.secp256k1
+
+import org.hyperledger.identus.apollo.base64.base64DecodedBytes
+import org.hyperledger.identus.apollo.utils.KMMEdPublicKey
+import kotlin.test.Test
+import kotlin.test.assertTrue
+
+class KMMEdKeyPairTest {
+
+    @Test
+    fun ed_signature_verify() {
+        val message = "testing".encodeToByteArray()
+        val edsk = KMMEdPublicKey("z+a8g8i/3yajE/QDIxIF7sP1m/aLKTOfygIuSJanRAg".base64DecodedBytes)
+        val sig = "zZzeTBYjrpowc+skEMVQSVTzntzXvZGcbBbNY0gHKF6z+e40Q5G3o35lX4Mf0J8iRde/LAn77JdzIh6gQv7hAA".base64DecodedBytes
+        val verify = edsk.verify(message, sig)
+        assertTrue(verify)
+    }
+}

apollo/src/commonMain/kotlin/org/hyperledger/identus/apollo/utils/KMMEdPrivateKey.kt

@@ -3,7 +3,7 @@ package org.hyperledger.identus.apollo.utils
 /**
  * Definition of the KMMEdPrivateKey functionality
  */
-public expect class KMMEdPrivateKey {
+public expect class KMMEdPrivateKey(rawBuffer: ByteArray) {
 
     /**
      * Method to sign a message using this KMMEdPrivateKey

apollo/src/commonMain/kotlin/org/hyperledger/identus/apollo/utils/KMMEdPublicKey.kt

@@ -3,7 +3,7 @@ package org.hyperledger.identus.apollo.utils
 /**
  * Definition of the KMMEdPublicKey functionality
  */
-public expect class KMMEdPublicKey {
+public expect class KMMEdPublicKey(bytes: ByteArray) {
 
     /**
      * Method to verify a signature against the original message

apollo/src/commonTest/kotlin/org/hyperledger/identus/apollo/utils/KMMEdKeyPairTestsIgnored.kt

@@ -1,10 +1,24 @@
 package org.hyperledger.identus.apollo.utils
 
+import org.hyperledger.identus.apollo.base64.base64DecodedBytes
 import kotlin.test.Test
 import kotlin.test.assertFalse
 import kotlin.test.assertNotNull
+import kotlin.test.assertTrue
 
 class KMMEdKeyPairTestsIgnored {
+    private val sk = "MYW4achRIcJkpg+AUHfF8LRe4yC+R6bxySHKRNxC3Ss".base64DecodedBytes
+    private val pk = "oKpvr2406EzaQL1jxr+xY9E3R1PW4+UbkFsCIgqflHU".base64DecodedBytes
+    private val sig = "yrGLROG6VuxYGIozboQnblbV3XHrlJGG/IYUPefFVsUbp6VmQtqaHtqI02kDTdaJ86ZX1hOiO4SoAi6gvRWkAA".base64DecodedBytes
+
+    private val sk1 = "yhqs9jKnsPIg55eG9RgG9484HR7UMYPDKS7yYb4w53w".base64DecodedBytes
+    private val pk1 = "ZfKIkRXdo1So5zdiMV2wnwsRTQYEVheJpkBd85BOvvs".base64DecodedBytes
+    private val sig1 = "TT6dNYar8AKlTkvibsAHzEsG/ArAAVWshewSwGcpY7aFc6OZ5/VAK/Dldj5cZNdTZxhtpXe5sJrSGFicoRdsAw".base64DecodedBytes;
+
+    private val sk2 = "WfrIGPy60WOf8D/NYun3byOGjIcYOF0YpMxq5asXfio".base64DecodedBytes
+    private val pk2 = "6MhfVglYiTf6S16vr1YhkgsCPj1JIWiXyIT0dxAsHyA".base64DecodedBytes
+    private val sig2 = "XLalfAYDTyGVgNho+pJPzmg75+7VX6fxTlJC6+Lq5EXKVqX5YpBledbw5P/yF9vXJUmwwFc7QqbW0YRi3DY9AA".base64DecodedBytes
+
     @Test
     fun testGenerateKeyPair() {
         val keyPair = KMMEdKeyPair.generateKeyPair()
@@ -15,25 +29,15 @@ class KMMEdKeyPairTestsIgnored {
     }
 
     @Test
-    fun testSignMessage() {
+    fun testVerifyMessage() {
         val keyPair = KMMEdKeyPair.generateKeyPair()
-        val message = "testing".encodeToByteArray()
-        val sig = keyPair.sign(message)
+        val msgHash = "testing".encodeToByteArray()
+        val sig = keyPair.sign(msgHash)
+        val verified = keyPair.verify(msgHash, sig)
 
-        assertNotNull(sig)
+        assertTrue(verified)
     }
 
-    // TODO: For some reason this test is failing in JVM and Android but only for generated key pairs commenting for now since has nothing to do with this PR
-//    @Test
-//    fun testVerifyMessage() {
-//        val keyPair = KMMEdKeyPair.generateKeyPair()
-//        val msgHash = "testing".encodeToByteArray()
-//        val sig = keyPair.sign(msgHash)
-//        val verified = keyPair.verify(msgHash, sig)
-//
-//        assertTrue(verified)
-//    }
-
     @Test
     fun testVerifyWithAnotherKeyPairFails() {
         val keyPair = KMMEdKeyPair.generateKeyPair()
@@ -45,4 +49,25 @@ class KMMEdKeyPairTestsIgnored {
 
         assertFalse(verified)
     }
+
+    @Test
+    fun testVerifyMessageFromSK() {
+        val msgHash = "testing".encodeToByteArray()
+
+        val testSig = KMMEdPrivateKey(sk).sign(msgHash)
+        assertTrue(testSig contentEquals sig)
+        val verified = KMMEdPublicKey(pk).verify(msgHash, testSig)
+
+        val testSig1 = KMMEdPrivateKey(sk1).sign(msgHash)
+        assertTrue(testSig1 contentEquals sig1)
+        val verified1 = KMMEdPublicKey(pk1).verify(msgHash, testSig1)
+
+        val testSig2 = KMMEdPrivateKey(sk2).sign(msgHash)
+        assertTrue(testSig2 contentEquals sig2)
+        val verified2 = KMMEdPublicKey(pk2).verify(msgHash, testSig2)
+
+        assertTrue(verified)
+        assertTrue(verified1)
+        assertTrue(verified2)
+    }
 }

apollo/src/jsMain/kotlin/org/hyperledger/identus/apollo/utils/KMMEdPrivateKey.kt

@@ -14,14 +14,15 @@ import org.hyperledger.identus.apollo.utils.external.eddsa
  */
 @OptIn(ExperimentalJsExport::class)
 @JsExport
-actual class KMMEdPrivateKey(bytes: ByteArray) {
+actual class KMMEdPrivateKey actual constructor(rawBuffer: ByteArray) {
     val raw: Buffer
+    val ed25519: eddsa;
+
     private val keyPair: eddsa.KeyPair
 
     init {
-        val ed25519 = eddsa("ed25519")
-
-        raw = Curve25519Parser.parseRaw(bytes)
+        ed25519 = eddsa("ed25519")
+        raw = Curve25519Parser.parseRaw(rawBuffer)
         keyPair = ed25519.keyFromSecret(raw)
     }
 
@@ -49,7 +50,7 @@ actual class KMMEdPrivateKey(bytes: ByteArray) {
     actual fun sign(message: ByteArray): ByteArray {
         val sig = keyPair.sign(Buffer.from(message))
 
-        return sig.toHex().encodeToByteArray()
+        return sig.toBytes().toByteArray()
     }
 
     /**

apollo/src/jsMain/kotlin/org/hyperledger/identus/apollo/utils/KMMEdPublicKey.kt

@@ -15,12 +15,14 @@ import org.hyperledger.identus.apollo.utils.external.eddsa
  */
 @OptIn(ExperimentalJsExport::class)
 @JsExport
-actual class KMMEdPublicKey(bytes: ByteArray) {
+actual class KMMEdPublicKey actual constructor(bytes: ByteArray) {
     val raw: Buffer
+    val ed25519: eddsa;
+
     private val keyPair: eddsa.KeyPair
 
     init {
-        val ed25519 = eddsa("ed25519")
+         ed25519 = eddsa("ed25519")
 
         raw = Curve25519Parser.parseRaw(bytes)
         val pub = raw.toString(BufferEncoding.hex)
@@ -46,6 +48,12 @@ actual class KMMEdPublicKey(bytes: ByteArray) {
      * @return Boolean
      */
     actual fun verify(message: ByteArray, sig: ByteArray): Boolean {
-        return keyPair.verify(Buffer.from(message), sig.decodeToString())
+
+        return keyPair.verify(
+            Buffer.from(message),
+            sig.toHexString()
+
+
+        )
     }
 }

apollo/src/jsMain/kotlin/org/hyperledger/identus/apollo/utils/external/Ellipticjs.kt

@@ -279,7 +279,7 @@ open external class eddsa(name: String /* "ed25519" */) {
     open fun isPoint(param_val: Any): Boolean
     open class Signature {
         constructor(eddsa: eddsa, sig: _eddsa_Signature)
-        constructor(eddsa: eddsa, sig: String)
+        constructor(eddsa: eddsa, sig: Any)
         open fun toBytes(): Buffer
         open fun toHex(): String
     }