pack-priv Class AESKeyWrapPadded

Implements abstract com.sun.crypto.provider.FeedbackCipher.decrypt.

Doc from com.sun.crypto.provider.FeedbackCipher.decrypt.

Performs decryption operation.

The input cipher, starting at cipherOffset and ending at (cipherOffset+cipherLen-1), is decrypted. The result is stored in plain, starting at plainOffset.

The subclass that implements Cipher should ensure that init has been called before this method is called.

Parameters

ct:byte[]

the input buffer with the data to be decrypted

ctOfs:int

the offset in cipher

ctLen:int

the length of the input data

pt:byte[]

the buffer for the decryption result

ptOfs:int

the offset in plain

Returns:int

the number of bytes placed into plain

Annotations

@Override

Overrides com.sun.crypto.provider.FeedbackCipher.decryptFinal.

Performs single-part decryption operation.

The input ct, starting at 0 and ending at ctLen-1, is decrypted. The result is stored in place into ct, starting at 0.

The subclass that implements Cipher should ensure that init has been called before this method is called.

Parameters

ct:byte[]

the input buffer with the data to be decrypted

dummy1:int

the offset in ct which is always 0

ctLen:int

the length of the input data

dummy2:byte[]

the output buffer for the decryption which is always ct

dummy3:int

the offset in the output buffer which is always 0

Returns:int

the number of bytes placed into ct

Annotations

@Override

Implements abstract com.sun.crypto.provider.FeedbackCipher.encrypt.

Doc from com.sun.crypto.provider.FeedbackCipher.encrypt.

Performs encryption operation.

The input plain, starting at plainOffset and ending at (plainOffset+plainLen-1), is encrypted. The result is stored in cipher, starting at cipherOffset.

The subclass that implements Cipher should ensure that init has been called before this method is called.

Parameters

pt:byte[]

the input buffer with the data to be encrypted

ptOfs:int

the offset in plain

ptLen:int

the length of the input data

ct:byte[]

the buffer for the encryption result

ctOfs:int

the offset in cipher

Returns:int

the number of bytes placed into cipher

Annotations

@Override

Overrides com.sun.crypto.provider.FeedbackCipher.encryptFinal.

Performs single-part encryption operation.

The input pt, starting at 0 and ending at ptLen-1, is encrypted. The result is stored in place into pt, starting at 0.

The subclass that implements Cipher should ensure that init has been called before this method is called.

Parameters

pt:byte[]

the input buffer with the data to be encrypted

dummy1:int

the offset in pt which is always 0

ptLen:int

the length of the input data

dummy2:byte[]

the output buffer for the encryption which is always pt

dummy3:int

the offset in the output buffer which is always 0

Returns:int

the number of bytes placed into pt

Annotations

@Override

Implements abstract com.sun.crypto.provider.FeedbackCipher.getFeedback.

Gets the name of this feedback mode.

Returns:String

the string KW

Annotations

@Override

Implements abstract com.sun.crypto.provider.FeedbackCipher.init.

Initializes the cipher in the specified mode with the given key and iv.

Parameters

decrypting:boolean

flag indicating encryption or decryption

algorithm:String

the algorithm name

key:byte[]

the key

iv:byte[]

the iv

Annotations

@Override

Exceptions

InvalidKeyException:

if the given key is inappropriate for initializing this cipher

InvalidAlgorithmParameterException:

if the given iv is non-null and not the right length

Implements abstract com.sun.crypto.provider.FeedbackCipher.reset.

Resets the iv to its original value. This is used when doFinal is called in the Cipher class, so that the cipher can be reused (with its original iv).

Annotations

@Override

Implements abstract com.sun.crypto.provider.FeedbackCipher.restore.

Restores the content of this cipher to the previous saved one.

Annotations

@Override

Implements abstract com.sun.crypto.provider.FeedbackCipher.save.

Save the current content of this cipher.

Annotations

@Override