Bouncy Castle Cryptography Library 1.60

org.bouncycastle.operator
Interface DigestCalculator

All Known Implementing Classes:
TruncatingDigestCalculator

public interface DigestCalculator

General interface for an operator that is able to calculate a digest from a stream of output.


Method Summary
 org.bouncycastle.asn1.x509.AlgorithmIdentifier getAlgorithmIdentifier()
          Return the algorithm identifier representing the digest implemented by this calculator.
 byte[] getDigest()
          Return the digest calculated on what has been written to the calculator's output stream.
 java.io.OutputStream getOutputStream()
          Returns a stream that will accept data for the purpose of calculating a digest.
 

Method Detail

getAlgorithmIdentifier

public org.bouncycastle.asn1.x509.AlgorithmIdentifier getAlgorithmIdentifier()
Return the algorithm identifier representing the digest implemented by this calculator.
Returns:
algorithm id and parameters.

getOutputStream

public java.io.OutputStream getOutputStream()
Returns a stream that will accept data for the purpose of calculating a digest. Use org.bouncycastle.util.io.TeeOutputStream if you want to accumulate the data on the fly as well.
Returns:
an OutputStream

getDigest

public byte[] getDigest()
Return the digest calculated on what has been written to the calculator's output stream.
Returns:
a digest.

Bouncy Castle Cryptography Library 1.60