public interface Signature
Modifier and Type | Method and Description |
---|---|
java.lang.String |
getAlgorithm() |
void |
initSigner(java.security.PrivateKey key) |
void |
initVerifier(java.security.PublicKey key) |
byte[] |
sign()
Compute the signature
|
default void |
update(byte[] hash)
Update the computed signature with the given data
|
void |
update(byte[] hash,
int off,
int len)
Update the computed signature with the given data
|
boolean |
verify(byte[] sig)
Verify against the given signature
|
java.lang.String getAlgorithm()
void initVerifier(java.security.PublicKey key) throws java.lang.Exception
key
- The PublicKey
to be used for verifying signaturesjava.lang.Exception
- If failed to initializevoid initSigner(java.security.PrivateKey key) throws java.lang.Exception
key
- The PrivateKey
to be used for signingjava.lang.Exception
- If failed to initializedefault void update(byte[] hash) throws java.lang.Exception
hash
- The hash data bufferjava.lang.Exception
- If failed to updateupdate(byte[], int, int)
void update(byte[] hash, int off, int len) throws java.lang.Exception
hash
- The hash data bufferoff
- Offset of hash data in bufferlen
- Length of hash datajava.lang.Exception
- If failed to updateboolean verify(byte[] sig) throws java.lang.Exception
sig
- The signed datatrue
if signature is validjava.lang.Exception
- If failed to extract signed data for validationbyte[] sign() throws java.lang.Exception
java.lang.Exception
- If failed to calculate the signature