org.mozilla.jss.crypto
public abstract class JSSMessageDigest extends Object
Deprecated: Use the JCA interface instead (java.security.MessageDigest)
A class for performing message digesting (hashing) and MAC operations.Method Summary | |
---|---|
byte[] | digest()
Completes digestion.
|
abstract int | digest(byte[] buf, int offset, int len)
Completes digesting, storing the result into the provided array.
|
byte[] | digest(byte[] input)
Provides final data to the digest, then completes it and returns the
output.
|
abstract DigestAlgorithm | getAlgorithm()
Returns the algorithm that this digest uses. |
int | getOutputSize()
Returns the length of the digest created by this digest's
digest algorithm.
|
abstract void | initHMAC(SymmetricKey key)
Initializes an HMAC digest with the given symmetric key. |
abstract void | reset()
Resets this digest for further use. |
void | update(byte input)
Updates the digest with a single byte of input. |
abstract void | update(byte[] input, int offset, int len)
Updates the digest with a portion of an array.
|
void | update(byte[] input)
Updates the digest with an array.
|
Parameters: If an error occurs while digesting.
Returns: The, ahem, output of the digest operation.
Parameters: buf The buffer in which to place the digest output. offset The offset in the buffer at which to store the output. len The amount of space available in the buffer for the digest output.
Returns: The number of bytes actually stored into buf.
Throws: DigestException If the provided space is too small for the digest, or an error occurs with the digest.
Parameters: input The digest's last meal.
Returns: The completed digest.
Throws: DigestException If an error occurs while digesting.
Returns: The size in bytes of the output of this digest.
Throws: DigestException If this algorithm is not an HMAC algorithm. InvalidKeyException If the given key is not valid.
Parameters: input An array from which to update the digest. offset The index in the array at which to start digesting. len The number of bytes to digest.
Throws: DigestException If an error occurs while digesting.
Parameters: input An array to feed to the digest.
Throws: DigestException If an error occurs while digesting.