Class SM2Signer

    • Constructor Detail

      • SM2Signer

        public SM2Signer()
      • SM2Signer

        public SM2Signer​(Digest digest)
      • SM2Signer

        public SM2Signer​(DSAEncoding encoding)
    • Method Detail

      • init

        public void init​(boolean forSigning,
                         CipherParameters param)
        Description copied from interface: Signer
        Initialise the signer for signing or verification.
        Specified by:
        init in interface Signer
        Parameters:
        forSigning - true if for signing, false otherwise
        param - necessary parameters.
      • update

        public void update​(byte b)
        Description copied from interface: Signer
        update the internal digest with the byte b
        Specified by:
        update in interface Signer
      • update

        public void update​(byte[] in,
                           int off,
                           int len)
        Description copied from interface: Signer
        update the internal digest with the byte array in
        Specified by:
        update in interface Signer
      • verifySignature

        public boolean verifySignature​(byte[] signature)
        Description copied from interface: Signer
        return true if the internal state represents the signature described in the passed in array.
        Specified by:
        verifySignature in interface Signer
      • reset

        public void reset()
        Description copied from interface: Signer
        reset the internal state
        Specified by:
        reset in interface Signer
      • generateSignature

        public byte[] generateSignature()
                                 throws CryptoException
        Description copied from interface: Signer
        generate a signature for the message we've been loaded with using the key we were initialised with.
        Specified by:
        generateSignature in interface Signer
        Throws:
        CryptoException
      • createBasePointMultiplier

        protected ECMultiplier createBasePointMultiplier()
      • calculateE

        protected java.math.BigInteger calculateE​(java.math.BigInteger n,
                                                  byte[] message)