#ifndef __SQCTS_H#define __SQCTS_H/*	Ciphertext Stealing (CTS) mode support	IMPORTANT REMARKS:		1.	This is a variant of  Cipher Block Chaining which relaxes the restriction		that the buffer length be a multiple of  SQUARE_BLOCKSIZE.  Note that the		buffer length must still be >= SQUARE_BLOCKSIZE.	2.	The IV is encrypted to avoid the possibility of being correlated with the		plaintext.*/  #include "square.h"typedef struct {	squareKeySchedule roundKeys_e, roundKeys_d;	byte mask[SQUARE_BLOCKSIZE];} squareCtsContext;void squareCtsInit    (squareCtsContext *ctxCts, const squareBlock key);void squareCtsSetIV   (squareCtsContext *ctxCts, const squareBlock iv);void squareCtsEncrypt (squareCtsContext *ctxCts, byte *buffer, unsigned length);void squareCtsDecrypt (squareCtsContext *ctxCts, byte *buffer, unsigned length);void squareCtsFinal   (squareCtsContext *ctxCts);#endif /* __SQCTS_H */