| java.lang.Object
 org.bouncycastle.crypto.signers.ISO9796d2PSSSigner
| ISO9796d2PSSSigner | | public class ISO9796d2PSSSigner implements SignerWithRecovery(Code) | | ISO9796-2 - mechanism using a hash function with recovery (scheme 2 and 3).
Note: the usual length for the salt is the length of the hash
function used in bytes.
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| Method Summary | |
| public byte[] | generateSignature()
generate a signature for the loaded message using the key we were
initialised with. | | public byte[] | getRecoveredMessage()
Return a reference to the recoveredMessage message. | | public boolean | hasFullMessage()
Return true if the full message was recoveredMessage. | | public void | init(boolean forSigning, CipherParameters param)
Initialise the signer.
Parameters:
forSigning - true if for signing, false if for verification.
Parameters:
param - parameters for signature generation/verification. | | public void | reset()
| | public void | update(byte b)
| | public void | update(byte[] in, int off, int len)
| | public boolean | verifySignature(byte[] signature)
return true if the signature represents a ISO9796-2 signature
for the passed in message. |
| TRAILER_IMPLICIT | | final public static int TRAILER_IMPLICIT(Code) | | |
| TRAILER_RIPEMD128 | | final public static int TRAILER_RIPEMD128(Code) | | |
| TRAILER_RIPEMD160 | | final public static int TRAILER_RIPEMD160(Code) | | |
| TRAILER_SHA1 | | final public static int TRAILER_SHA1(Code) | | |
| ISO9796d2PSSSigner | | public ISO9796d2PSSSigner(AsymmetricBlockCipher cipher, Digest digest, int saltLength, boolean implicit)(Code) | | Generate a signer for the with either implicit or explicit trailers
for ISO9796-2, scheme 2 or 3.
Parameters:
cipher - base cipher to use for signature creation/verification
Parameters:
digest - digest to use.
Parameters:
saltLength - length of salt in bytes.
Parameters:
implicit - whether or not the trailer is implicit or gives the hash. |
| ISO9796d2PSSSigner | | public ISO9796d2PSSSigner(AsymmetricBlockCipher cipher, Digest digest, int saltLength)(Code) | | Constructor for a signer with an explicit digest trailer.
Parameters:
cipher - cipher to use.
Parameters:
digest - digest to sign with.
Parameters:
saltLength - length of salt in bytes. |
| generateSignature | | public byte[] generateSignature() throws CryptoException(Code) | | generate a signature for the loaded message using the key we were
initialised with.
|
| init | | public void init(boolean forSigning, CipherParameters param)(Code) | | Initialise the signer.
Parameters:
forSigning - true if for signing, false if for verification.
Parameters:
param - parameters for signature generation/verification. If theparameters are for generation they should be a ParametersWithRandom,a ParametersWithSalt, or just an RSAKeyParameters object. If RSAKeyParametersare passed in a SecureRandom will be created.
exception:
IllegalArgumentException - if wrong parameter type or a fixed salt is passed in which is the wrong length. |
| reset | | public void reset()(Code) | | reset the internal state
|
| update | | public void update(byte b)(Code) | | update the internal digest with the byte b
|
| update | | public void update(byte[] in, int off, int len)(Code) | | update the internal digest with the byte array in
|
| verifySignature | | public boolean verifySignature(byte[] signature)(Code) | | return true if the signature represents a ISO9796-2 signature
for the passed in message.
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