Package org.bouncycastle.crypto

Interface Digest

All Known Subinterfaces:
ExtendedDigest
All Known Implementing Classes:
GeneralDigest, LongDigest, MD5Digest, NullDigest, OpenSSLDigest, OpenSSLDigest.MD5, OpenSSLDigest.SHA1, OpenSSLDigest.SHA256, OpenSSLDigest.SHA384, OpenSSLDigest.SHA512, SHA1Digest, SHA256Digest, SHA384Digest, SHA512Digest
public interface Digest
interface that a message digest conforms to.

  • Method Summary

    Modifier and Type Method Description
    int doFinal​(byte[] out, int outOff)
    close the digest, producing the final digest value.
    String getAlgorithmName()
    return the algorithm name
    int getDigestSize()
    return the size, in bytes, of the digest produced by this message digest.
    void reset()
    reset the digest back to it's initial state.
    void update​(byte in)
    update the message digest with a single byte.
    void update​(byte[] in, int inOff, int len)
    update the message digest with a block of bytes.

  • Method Details

    • getAlgorithmName

      String getAlgorithmName()
      return the algorithm name
      Returns:
      the algorithm name

    • getDigestSize

      int getDigestSize()
      return the size, in bytes, of the digest produced by this message digest.
      Returns:
      the size, in bytes, of the digest produced by this message digest.

    • update

      void update​(byte in)
      update the message digest with a single byte.
      Parameters:
      in - the input byte to be entered.

    • update

      void update​(byte[] in, int inOff, int len)
      update the message digest with a block of bytes.
      Parameters:
      in - the byte array containing the data.
      inOff - the offset into the byte array where the data starts.
      len - the length of the data.

    • doFinal

      int doFinal​(byte[] out, int outOff)
      close the digest, producing the final digest value. The doFinal call leaves the digest reset.
      Parameters:
      out - the array the digest is to be copied into.
      outOff - the offset into the out array the digest is to start at.

    • reset

      void reset()
      reset the digest back to it's initial state.