package cryptokit

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Add Cipher Block Chaining (CBC) to the given block cipher in encryption mode. Each block of input is xor-ed with the previous output block before being encrypted through the given block cipher. The optional iv argument specifies the string to be xor-ed with the first input block, and defaults to all zeroes. The returned block cipher has the same block size as the underlying block cipher.

method blocksize : int

The size in bytes of the blocks manipulated by the cipher.

method transform : bytes -> int -> bytes -> int -> unit

transform src spos dst dpos encrypts or decrypts one block of data. The input data is read from byte array src at positions spos, ..., spos + blocksize - 1, and the output data is stored in byte array dst at positions dpos, ..., dpos + blocksize - 1.

method wipe : unit

Erase the internal state of the block cipher, such as all key-dependent material.

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