com.itextpdf.signatures

Class BouncyCastleDigest

java.lang.Object

com.itextpdf.signatures.BouncyCastleDigest

All Implemented Interfaces:

IExternalDigest

public class BouncyCastleDigest
extends Object
implements IExternalDigest

Implementation for digests accessed directly from the BouncyCastle library bypassing any provider definition.

Constructor Summary

Constructors

Constructor and Description
BouncyCastleDigest()

Method Summary

Modifier and Type	Method and Description
MessageDigest	getMessageDigest(String hashAlgorithm) Returns the MessageDigest associated with the provided hashing algorithm.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BouncyCastleDigest

public BouncyCastleDigest()

Method Detail

getMessageDigest

public MessageDigest getMessageDigest(String hashAlgorithm)
                               throws GeneralSecurityException

Description copied from interface: IExternalDigest

Returns the MessageDigest associated with the provided hashing algorithm.

Specified by:

getMessageDigest in interface IExternalDigest

Parameters:

hashAlgorithm - String value representing the hashing algorithm

Returns:

MessageDigest MessageDigest object

Throws:

GeneralSecurityException - Thrown when something goes wrong in calculating the digest