package cryptokit

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Add Cipher Feedback Block (CFB) to the given block cipher in encryption mode. The integer argument n is the number of bytes processed at a time; it must lie between 1 and the block size of the underlying cipher, included. The returned block cipher has block size n.

method blocksize : int

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

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

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

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

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.

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

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