feature: add publicKey to PrivateKeys (#96)

hyperledger · Sep 27, 2023 · 5acd175 · 5acd175
1 parent 21c33e4
commit 5acd175
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Showing 5 changed files with 34 additions and 3 deletions.
diff --git a/...ric-encryption/src/androidMain/kotlin/io/iohk/atala/prism/apollo/utils/KMMEdPrivateKey.kt b/...ric-encryption/src/androidMain/kotlin/io/iohk/atala/prism/apollo/utils/KMMEdPrivateKey.kt
@@ -4,6 +4,13 @@ import org.bouncycastle.crypto.params.Ed25519PrivateKeyParameters
 import org.bouncycastle.crypto.signers.Ed25519Signer
 
 actual class KMMEdPrivateKey(val raw: ByteArray) {
+
+    fun publicKey(): KMMEdPublicKey {
+        val private = Ed25519PrivateKeyParameters(raw, 0)
+        val public = private.generatePublicKey()
+        return KMMEdPublicKey(public.encoded)
+    }
+
     actual fun sign(message: ByteArray): ByteArray {
         val privateKeyParameters = Ed25519PrivateKeyParameters(raw, 0)
         val signer = Ed25519Signer()

diff --git a/...encryption/src/androidMain/kotlin/io/iohk/atala/prism/apollo/utils/KMMX25519PrivateKey.kt b/...encryption/src/androidMain/kotlin/io/iohk/atala/prism/apollo/utils/KMMX25519PrivateKey.kt
@@ -1,3 +1,12 @@
 package io.iohk.atala.prism.apollo.utils
 
-actual class KMMX25519PrivateKey(val raw: ByteArray)
+import org.bouncycastle.crypto.params.X25519PrivateKeyParameters
+
+actual class KMMX25519PrivateKey(val raw: ByteArray) {
+
+    fun publicKey(): KMMX25519PublicKey {
+        val private = X25519PrivateKeyParameters(raw, 0)
+        val public = private.generatePublicKey()
+        return KMMX25519PublicKey(public.encoded)
+    }
+}
diff --git a/...mmetric-encryption/src/iosMain/kotlin/io/iohk/atala/prism/apollo/utils/KMMEdPrivateKey.kt b/...mmetric-encryption/src/iosMain/kotlin/io/iohk/atala/prism/apollo/utils/KMMEdPrivateKey.kt
@@ -14,7 +14,7 @@ public actual class KMMEdPrivateKey(val raw: ByteArray) {
     }
 
     @Throws(RuntimeException::class)
-    public fun publicKey(): KMMEdPublicKey {
+    fun publicKey(): KMMEdPublicKey {
         val result = Ed25519.publicKeyWithPrivateKey(raw.toNSData())
         result.failure()?.let { throw RuntimeException(it.localizedDescription()) }
         val publicRaw = result.success()?.toByteArray() ?: throw RuntimeException("Null result")

diff --git a/...mmetric-encryption/src/jvmMain/kotlin/io/iohk/atala/prism/apollo/utils/KMMEdPrivateKey.kt b/...mmetric-encryption/src/jvmMain/kotlin/io/iohk/atala/prism/apollo/utils/KMMEdPrivateKey.kt
@@ -6,6 +6,12 @@ import java.io.ByteArrayInputStream
 
 actual class KMMEdPrivateKey(val raw: ByteArray) {
 
+    fun publicKey(): KMMEdPublicKey {
+        val private = Ed25519PrivateKeyParameters(raw, 0)
+        val public = private.generatePublicKey()
+        return KMMEdPublicKey(public.encoded)
+    }
+
     actual fun sign(message: ByteArray): ByteArray {
         val privateKeyParameters = Ed25519PrivateKeyParameters(ByteArrayInputStream(raw))
         val signer = Ed25519Signer()

diff --git a/...ric-encryption/src/jvmMain/kotlin/io/iohk/atala/prism/apollo/utils/KMMX25519PrivateKey.kt b/...ric-encryption/src/jvmMain/kotlin/io/iohk/atala/prism/apollo/utils/KMMX25519PrivateKey.kt
@@ -1,3 +1,12 @@
 package io.iohk.atala.prism.apollo.utils
 
-actual class KMMX25519PrivateKey(val raw: ByteArray)
+import org.bouncycastle.crypto.params.X25519PrivateKeyParameters
+
+actual class KMMX25519PrivateKey(val raw: ByteArray) {
+
+    fun publicKey(): KMMX25519PublicKey {
+        val private = X25519PrivateKeyParameters(raw, 0)
+        val public = private.generatePublicKey()
+        return KMMX25519PublicKey(public.encoded)
+    }
+}