Package org.bouncycastle.pqc.crypto.mqom

Class MQOMSigner

  • All Implemented Interfaces:
    MessageSigner
    public class MQOMSigner
extends java.lang.Object
implements MessageSigner
    MQOM v2.1 lightweight signer. Implements the BCPQC one-shot MessageSigner contract: generateSignature(byte[]) takes the whole message and verifySignature(byte[], byte[]) takes the message plus the candidate signature. Messages are hashed internally per the spec (Hash2 in algorithm 3).

    Per-call randomness (mseed, salt) is drawn from the SecureRandom supplied via ParametersWithRandom; pass an explicit ParametersWithRandom to make signing deterministic or to inject a KAT-style fixed RNG.

    • Constructor Summary

      Constructors 
      Constructor Description
      MQOMSigner()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      byte[] generateSignature​(byte[] message)
      sign the passed in message (usually the output of a hash function).
      void init​(boolean forSigning, CipherParameters param)
      initialise the signer for signature generation or signature verification.
      boolean verifySignature​(byte[] message, byte[] signature)
      verify the message message against the signature value.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • MQOMSigner

        public MQOMSigner()

    • Method Detail

      • init

        public void init​(boolean forSigning,
                 CipherParameters param)
        Description copied from interface: MessageSigner
        initialise the signer for signature generation or signature verification.
        Specified by:
        init in interface MessageSigner
        Parameters:
        forSigning - true if we are generating a signature, false otherwise.
        param - key parameters for signature generation.

      • generateSignature

        public byte[] generateSignature​(byte[] message)
        Description copied from interface: MessageSigner
        sign the passed in message (usually the output of a hash function).
        Specified by:
        generateSignature in interface MessageSigner
        Parameters:
        message - the message to be signed.
        Returns:
        the signature of the message

      • verifySignature

        public boolean verifySignature​(byte[] message,
                               byte[] signature)
        Description copied from interface: MessageSigner
        verify the message message against the signature value.
        Specified by:
        verifySignature in interface MessageSigner
        Parameters:
        message - the message that was supposed to have been signed.
        signature - the signature of the message