Class TruncatingDigestCalculator

java.lang.Object
org.bouncycastle.cert.dane.TruncatingDigestCalculator
All Implemented Interfaces:
DigestCalculator
public class TruncatingDigestCalculator extends 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.

  • Constructor Details

    • 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 Details

    • 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 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.