Field Detail

• TRAILER_IMPLICIT

  public static final byte TRAILER_IMPLICIT

  See Also:

  Constant Field Values

Constructor Detail

• PSSSigner

  public PSSSigner​(AsymmetricBlockCipher cipher,
                   Digest digest,
                   int sLen)

  basic constructor

  Parameters:

  cipher - the asymmetric cipher to use.

  digest - the digest to use.

  sLen - the length of the salt to use (in bytes).

• PSSSigner

  public PSSSigner​(AsymmetricBlockCipher cipher,
                   Digest contentDigest,
                   Digest mgfDigest,
                   int sLen)

• PSSSigner

  public PSSSigner​(AsymmetricBlockCipher cipher,
                   Digest digest,
                   int sLen,
                   byte trailer)

• PSSSigner

  public PSSSigner​(AsymmetricBlockCipher cipher,
                   Digest contentDigest,
                   Digest mgfDigest,
                   int sLen,
                   byte trailer)

• PSSSigner

  public PSSSigner​(AsymmetricBlockCipher cipher,
                   Digest digest,
                   byte[] salt)

• PSSSigner

  public PSSSigner​(AsymmetricBlockCipher cipher,
                   Digest contentDigest,
                   Digest mgfDigest,
                   byte[] salt)

• PSSSigner

  public PSSSigner​(AsymmetricBlockCipher cipher,
                   Digest contentDigest,
                   Digest mgfDigest,
                   byte[] salt,
                   byte trailer)

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)

  update the internal digest with the byte b

  Specified by:

  update in interface Signer

• update

  public void update​(byte[] in,
                     int off,
                     int len)

  update the internal digest with the byte array in

  Specified by:

  update in interface Signer

• reset

  public void reset()

  reset the internal state

  Specified by:

  reset in interface Signer

• generateSignature

  public byte[] generateSignature()
                           throws CryptoException,
                                  DataLengthException

  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

  DataLengthException

• verifySignature

  public boolean verifySignature​(byte[] signature)

  return true if the internal state represents the signature described in the passed in array.

  Specified by:

  verifySignature in interface Signer