Sign helper

Sign helper allows to easily perform signature-related operations.

Provided operations

Below you can find the sign helper's provided operations with some examples

1. Takes the given data, converts it to an JSON object and signs its content using the given wallet.

   fun signSortedTxData(data: Any, wallet: Wallet): ByteArray
   

2. Takes the given data, converts it to an alphabetically sorted JSON object and signs its content using the given wallet.

   fun signSorted(data: Any, wallet: Wallet): ByteArray
   

3. Sign in PKCS1 v 1.5 with private Key the payload.

   fun signPowerUpSignature(
     senderDid: String, pairwiseDid: String, timestamp: String, privateKey: RSAPrivateKey
   ): ByteArray
   

4. Verifies that the given signature is valid for the given signedData against the given key.

    private fun verifySignature(
      signature: ByteArray, signedData: ByteArray, key: PublicKey
    ): Boolean
   

5. Verifies that the given signature is valid for the given signedData by using the public keys contained inside the given didDocument.

   fun verifySignature(
     signature: ByteArray, signedData: Any, didDocument: DidDocument
   ): Boolean