org.logi.crypto.keys
Interface DecryptionKey

All Superinterfaces:

Key, java.security.Key, PrettyPrintable, java.io.Serializable

All Known Subinterfaces:

CipherKey

All Known Implementing Classes:

DHPrivateKey, RSAPrivateKey

public interface DecryptionKey

extends Key

This interface is implemented by keys which handle decryption of single blocks of data.

Author:

Logi Ragnarsson (logi@logi.org)

Fields inherited from interface java.security.Key

serialVersionUID

Method Summary

int	cipherBlockSize() Returns the size of the blocks that can be decrypted in one call to decrypt().
void	decrypt(byte[] source, int i, byte[] dest, int j) Decrypt one block of data.
int	plainBlockSize() Returns the size of the blocks that can be encrypted in one call to encrypt().

Methods inherited from interface org.logi.crypto.keys.Key

getAlgorithm, getFingerprint, getFingerprint, getSize, hashCode, matches, matchFingerprint, matchFingerprint

Methods inherited from interface org.logi.crypto.io.PrettyPrintable

prettyPrint, prettyPrint

Methods inherited from interface java.security.Key

getEncoded, getFormat

Method Detail

plainBlockSize

public int plainBlockSize()

Returns the size of the blocks that can be encrypted in one call to encrypt().

cipherBlockSize

public int cipherBlockSize()

Returns the size of the blocks that can be decrypted in one call to decrypt().

decrypt

public void decrypt(byte[] source,
                    int i,
                    byte[] dest,
                    int j)

Decrypt one block of data. The ciphertext is taken from source starting at offset i and plaintext is written to dest, starting at offset j.

The amount of data read and written will match the values returned by cipherBlockSize() and plainBlockSize().