upgrade kotlin; sealedbox now accept general signing/verifying keys

src/commonMain/kotlin/net/sergeych/crypto2/SealedBox.kt

@@ -33,7 +33,7 @@ class SealedBox(
 ) {
 
     @Suppress("unused")
-    constructor(message: UByteArray, vararg keys: SigningSecretKey) :
+    constructor(message: UByteArray, vararg keys: SigningKey) :
             this(message, keys.map { it.seal(message) } )
 
     /**
@@ -41,7 +41,7 @@ class SealedBox(
      * key, or return unchanged (same) object if it is already signed by this key; you
      * _can't assume it always returns a copied object!_
      */
-    operator fun plus(key: SigningSecretKey): SealedBox =
+    operator fun plus(key: SigningKey): SealedBox =
         if (key.verifyingKey in this) this
         else SealedBox(message, seals + key.seal(message),false)
 
@@ -49,15 +49,15 @@ class SealedBox(
      * Add expiring seal, otherwise use [plus]. Overrides exising seal for [key]
      * if present:
      */
-    fun addSeal(key: SigningSecretKey, expresAt: Instant): SealedBox {
+    fun addSeal(key: SigningKey, expiresAt: Instant): SealedBox {
         val filtered = seals.filter { it.publicKey != key.verifyingKey }
-        return SealedBox(message, filtered + key.seal(message, expresAt), false)
+        return SealedBox(message, filtered + key.seal(message, expiresAt), false)
     }
 
     /**
      * Check that it is signed with a specified key.
      */
-    operator fun contains(publicKey: VerifyingPublicKey): Boolean {
+    operator fun contains(publicKey: VerifyingKey): Boolean {
         return seals.any { it.publicKey == publicKey }
     }
 
@@ -85,7 +85,7 @@ class SealedBox(
             return SealedBox(data, keys.map { it.seal(data) }, false)
         }
 
-        inline fun <reified T>encode(value: T, vararg keys: SigningSecretKey): UByteArray =
+        inline fun <reified T>encode(value: T, vararg keys: SigningKey): UByteArray =
             create(BipackEncoder.encode(value).toUByteArray(), *keys).encoded
 
         /**

src/commonMain/kotlin/net/sergeych/crypto2/SymmetricKey.kt

@@ -65,7 +65,6 @@ class SymmetricKey(
         return keyBytes.contentHashCode()
     }
 
-
     companion object {
         /**
          * Create a secure random symmetric key.