org.bouncycastle.pqc.crypto.mayo

Class MayoSigner

java.lang.Object

org.bouncycastle.pqc.crypto.mayo.MayoSigner

All Implemented Interfaces:

MessageSigner

public class MayoSigner
extends java.lang.Object
implements MessageSigner

Implementation of the MAYO digital signature scheme as specified in the MAYO documentation. This class provides functionality for both signature generation and verification.

MAYO is a candidate in the NIST Post-Quantum Cryptography: Additional Digital Signature Schemes project, currently in Round 2 of evaluations. For more details about the NIST standardization process, see: NIST PQC Additional Digital Signatures.

References:

• MAYO Official Website
• MAYO Specification Document
• MAYO Reference Implementation (C)

Constructor Summary

Constructors

Constructor and Description
MayoSigner()

Method Summary

Modifier and Type	Method and Description
byte[]	generateSignature(byte[] message) Generates a MAYO signature for the given message using the initialized private key.
void	init(boolean forSigning, CipherParameters param) Initializes the signer for either signature generation or verification.
boolean	verifySignature(byte[] message, byte[] signature) Verifies a MAYO signature against the initialized public key and message.

Methods inherited from class java.lang.Object

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

Constructor Detail

MayoSigner

public MayoSigner()

Method Detail

init

public void init(boolean forSigning,
                 CipherParameters param)

Initializes the signer for either signature generation or verification.

Specified by:

init in interface MessageSigner

Parameters:

forSigning - true for signing mode, false for verification

param - CipherParameters containing:

• ParametersWithRandom with MayoPrivateKeyParameters (for signing)
• MayoPublicKeyParameters (for verification)

Throws:

java.lang.IllegalArgumentException - if invalid parameters are provided

generateSignature

public byte[] generateSignature(byte[] message)

Generates a MAYO signature for the given message using the initialized private key. Follows the signature generation process outlined in the MAYO specification document.

Specified by:

generateSignature in interface MessageSigner

Parameters:

message - The message to be signed

Returns:

The signature bytes concatenated with the original message

See Also:

MAYO Spec Algorithm 8 and 10

verifySignature

public boolean verifySignature(byte[] message,
                               byte[] signature)

Verifies a MAYO signature against the initialized public key and message. Implements the verification process specified in the MAYO documentation.

Specified by:

verifySignature in interface MessageSigner

Parameters:

message - The original message

signature - The signature to verify

Returns:

true if the signature is valid, false otherwise

See Also:

MAYO Spec Algorithm 9 and 11