Class JCECipherProvider

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private javax.crypto.Cipher cipher  
      private javax.crypto.SecretKey cryptixKey  
      private int encryptionBlockSize  
      private javax.crypto.spec.IvParameterSpec ivspec  
      private boolean ivUsed  
      private int mode  
      private boolean sunjce  
    • Constructor Summary

      Constructors 
      Constructor Description
      JCECipherProvider​(int mode, javax.crypto.SecretKey secretKey, byte[] iv, java.lang.String algorithm, java.lang.String provider)  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int decrypt​(byte[] ciphertext, int offset, int length, byte[] cleartext, int outputOffset)
      Decrypt data - use only with Cipher that has been initialized with CipherFactory.DECRYPT.
      int encrypt​(byte[] cleartext, int offset, int length, byte[] ciphertext, int outputOffset)
      Encrypt data - use only with Cipher that has been initialized with CipherFactory.ENCRYPT.
      int getEncryptionBlockSize()
      Returns the encryption block size used during creation of the encrypted database
      (package private) boolean verifyIV​(byte[] IV)  
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • cipher

        private javax.crypto.Cipher cipher
      • mode

        private int mode
      • ivUsed

        private boolean ivUsed
      • ivspec

        private final javax.crypto.spec.IvParameterSpec ivspec
      • encryptionBlockSize

        private final int encryptionBlockSize
      • sunjce

        private boolean sunjce
      • cryptixKey

        private javax.crypto.SecretKey cryptixKey
    • Constructor Detail

      • JCECipherProvider

        JCECipherProvider​(int mode,
                          javax.crypto.SecretKey secretKey,
                          byte[] iv,
                          java.lang.String algorithm,
                          java.lang.String provider)
                   throws StandardException
        Throws:
        StandardException
    • Method Detail

      • encrypt

        public int encrypt​(byte[] cleartext,
                           int offset,
                           int length,
                           byte[] ciphertext,
                           int outputOffset)
                    throws StandardException
        Description copied from interface: CipherProvider
        Encrypt data - use only with Cipher that has been initialized with CipherFactory.ENCRYPT.
        Specified by:
        encrypt in interface CipherProvider
        Parameters:
        cleartext - the byte array containing the cleartext
        offset - encrypt from this byte offset in the cleartext
        length - encrypt this many bytes starting from offset
        ciphertext - the byte array to store the ciphertext
        outputOffset - the offset into the ciphertext array the output should go If cleartext and ciphertext are the same array, caller must be careful to not overwrite the cleartext before it is scrambled.
        Returns:
        The number of bytes stored in ciphertext.
        Throws:
        StandardException - Standard Derby Error Policy
        See Also:
        CipherProvider.encrypt(byte[], int, int, byte[], int)
      • decrypt

        public int decrypt​(byte[] ciphertext,
                           int offset,
                           int length,
                           byte[] cleartext,
                           int outputOffset)
                    throws StandardException
        Description copied from interface: CipherProvider
        Decrypt data - use only with Cipher that has been initialized with CipherFactory.DECRYPT.
        Specified by:
        decrypt in interface CipherProvider
        Parameters:
        ciphertext - the byte array containing the ciphertext
        offset - decrypt from this byte offset in the ciphertext
        length - decrypt this many bytes starting from offset
        cleartext - the byte array to store the cleartext
        outputOffset - the offset into the cleartext array the output should go If cleartext and ciphertext are the same array, caller must be careful to not overwrite the ciphertext before it is un-scrambled.
        Returns:
        The number of bytes stored in cleartext.
        Throws:
        StandardException - Standard Derby Error Policy
        See Also:
        CipherProvider.decrypt(byte[], int, int, byte[], int)
      • verifyIV

        boolean verifyIV​(byte[] IV)
      • getEncryptionBlockSize

        public int getEncryptionBlockSize()
        Description copied from interface: CipherProvider
        Returns the encryption block size used during creation of the encrypted database
        Specified by:
        getEncryptionBlockSize in interface CipherProvider