?? sqofb.h
字號:
#ifndef __SQOFB_H#define __SQOFB_H/* Output Feedback (OFB) mode support IMPORTANT REMARK: input buffers to the encryption/decryption functions must be word-aligned on machines which have this as a requirement.*/#include "square.h"typedef struct { squareKeySchedule roundKeys; squareBlock mask; unsigned avail; /* number of available mask bytes */ } squareOfbContext;void squareOfbInit (squareOfbContext *ctxOfb, const squareBlock key);void squareOfbSetIV (squareOfbContext *ctxOfb, const squareBlock iv);void squareOfbMask (squareOfbContext *ctxOfb, byte *buffer, unsigned length);#define squareOfbEncrypt squareOfbMask#define squareOfbDecrypt squareOfbMaskvoid squareOfbFinal (squareOfbContext *ctxOfb);#endif /* __SQOFB_H */
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