|
Bouncy Castle Cryptography 1.45 | ||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||
java.lang.Objectorg.bouncycastle.crypto.signers.ISO9796d2Signer
public class ISO9796d2Signer
ISO9796-2 - mechanism using a hash function with recovery (scheme 1)
| Field Summary | |
|---|---|
static int |
TRAILER_IMPLICIT
|
static int |
TRAILER_RIPEMD128
|
static int |
TRAILER_RIPEMD160
|
static int |
TRAILER_SHA1
|
| Constructor Summary | |
|---|---|
ISO9796d2Signer(AsymmetricBlockCipher cipher,
Digest digest)
Constructor for a signer with an explicit digest trailer. |
|
ISO9796d2Signer(AsymmetricBlockCipher cipher,
Digest digest,
boolean implicit)
Generate a signer for the with either implicit or explicit trailers for ISO9796-2. |
|
| Method Summary | |
|---|---|
byte[] |
generateSignature()
generate a signature for the loaded message using the key we were initialised with. |
byte[] |
getRecoveredMessage()
Return a reference to the recoveredMessage message. |
boolean |
hasFullMessage()
Return true if the full message was recoveredMessage. |
void |
init(boolean forSigning,
CipherParameters param)
Initialise the signer for signing or verification. |
void |
reset()
reset the internal state |
void |
update(byte b)
update the internal digest with the byte b |
void |
update(byte[] in,
int off,
int len)
update the internal digest with the byte array in |
boolean |
verifySignature(byte[] signature)
return true if the signature represents a ISO9796-2 signature for the passed in message. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
public static final int TRAILER_IMPLICIT
public static final int TRAILER_RIPEMD160
public static final int TRAILER_RIPEMD128
public static final int TRAILER_SHA1
| Constructor Detail |
|---|
public ISO9796d2Signer(AsymmetricBlockCipher cipher,
Digest digest,
boolean implicit)
cipher - base cipher to use for signature creation/verificationdigest - digest to use.implicit - whether or not the trailer is implicit or gives the hash.
public ISO9796d2Signer(AsymmetricBlockCipher cipher,
Digest digest)
cipher - cipher to use.digest - digest to sign with.| Method Detail |
|---|
public void init(boolean forSigning,
CipherParameters param)
Signer
init in interface SignerforSigning - true if for signing, false otherwiseparam - necessary parameters.public void update(byte b)
update in interface Signer
public void update(byte[] in,
int off,
int len)
update in interface Signerpublic void reset()
reset in interface Signer
public byte[] generateSignature()
throws CryptoException
generateSignature in interface SignerCryptoExceptionpublic boolean verifySignature(byte[] signature)
verifySignature in interface Signerpublic boolean hasFullMessage()
hasFullMessage in interface SignerWithRecoverySignerWithRecovery.hasFullMessage()public byte[] getRecoveredMessage()
getRecoveredMessage in interface SignerWithRecoverySignerWithRecovery.getRecoveredMessage()
|
Bouncy Castle Cryptography 1.45 | ||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||