Package org.bouncycastle.cert.dane

Class TruncatingDigestCalculator

  • All Implemented Interfaces:
    DigestCalculator
    public class TruncatingDigestCalculator
extends java.lang.Object
implements DigestCalculator
    A calculator which produces a truncated digest from a regular one, with the truncation achieved by dropping off the right most octets.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      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.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • TruncatingDigestCalculator

        public TruncatingDigestCalculator​(DigestCalculator baseCalculator)
        Default constructor - truncate to 28.
        Parameters:
        baseCalculator - actual calculator for working out the digest.

      • TruncatingDigestCalculator

        public TruncatingDigestCalculator​(DigestCalculator baseCalculator,
                                  int length)
        Constructor specifying a length.
        Parameters:
        baseCalculator - actual calculator for working out the digest.
        length - length in bytes of the final result.

    • Method Detail

      • getAlgorithmIdentifier

        public org.bouncycastle.asn1.x509.AlgorithmIdentifier getAlgorithmIdentifier()
        Description copied from interface: DigestCalculator
        Return the algorithm identifier representing the digest implemented by this calculator.
        Specified by:
        getAlgorithmIdentifier in interface DigestCalculator
        Returns:
        algorithm id and parameters.

      • getOutputStream

        public java.io.OutputStream getOutputStream()
        Description copied from interface: DigestCalculator
        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.
        Specified by:
        getOutputStream in interface DigestCalculator
        Returns:
        an OutputStream

      • getDigest

        public byte[] getDigest()
        Description copied from interface: DigestCalculator
        Return the digest calculated on what has been written to the calculator's output stream.
        Specified by:
        getDigest in interface DigestCalculator
        Returns:
        a digest.