81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
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/* rijndael-api.h - Rijndael encryption programming interface.
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* Author: Kees J. Bot
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* 3 Nov 2000
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* Heavily based on the original API code by Antoon Bosselaers,
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* Vincent Rijmen, and Paulo Barreto, but with a different interface.
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*
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* This code (.h and .c) is in the public domain.
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*/
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#ifndef _CRYPTO__RIJNDAEL_H
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#define _CRYPTO__RIJNDAEL_H
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/* Error codes. */
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#define RD_BAD_KEY_MAT -1 /* Key material not of correct length */
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#define RD_BAD_BLOCK_LENGTH -2 /* Data is not a block multiple */
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#define RD_BAD_DATA -3 /* Data contents are invalid (bad padding?) */
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/* Key information. */
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#define RD_KEY_HEX -1 /* Key is in hex (otherwise octet length) */
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#define RD_MAXROUNDS 14 /* Max number of encryption rounds. */
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typedef struct {
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int rounds; /* Key-length-dependent number of rounds */
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unsigned char encsched[RD_MAXROUNDS+1][4][4]; /* Encr key schedule */
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unsigned char decsched[RD_MAXROUNDS+1][4][4]; /* Decr key schedule */
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} rd_keyinstance;
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#define AES_BLOCKSIZE 16
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/* Function prototypes. */
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int rijndael_makekey(rd_keyinstance *_key,
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size_t _keylen, const void *_keymaterial);
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ssize_t rijndael_ecb_encrypt(rd_keyinstance *_key,
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const void *_input, void *_output, size_t _length, void *_dummyIV);
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ssize_t rijndael_ecb_decrypt(rd_keyinstance *_key,
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const void *_input, void *_output, size_t _length, void *_dummyIV);
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ssize_t rijndael_cbc_encrypt(rd_keyinstance *_key,
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const void *_input, void *_output, size_t _length, void *_IV);
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ssize_t rijndael_cbc_decrypt(rd_keyinstance *_key,
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const void *_input, void *_output, size_t _length, void *_IV);
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ssize_t rijndael_cfb1_encrypt(rd_keyinstance *_key,
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const void *_input, void *_output, size_t _length, void *_IV);
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ssize_t rijndael_cfb1_decrypt(rd_keyinstance *_key,
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const void *_input, void *_output, size_t _length, void *_IV);
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ssize_t rijndael_cfb8_encrypt(rd_keyinstance *_key,
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const void *_input, void *_output, size_t _length, void *_IV);
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ssize_t rijndael_cfb8_decrypt(rd_keyinstance *_key,
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const void *_input, void *_output, size_t _length, void *_IV);
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ssize_t rijndael_pad(void *_input, size_t _length);
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ssize_t rijndael_unpad(const void *_input, size_t _length);
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typedef ssize_t (*rd_function)(rd_keyinstance *_key,
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const void *_input, void *_output, size_t _length, void *_IV);
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#ifdef INTERMEDIATE_VALUE_KAT
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void cipherEncryptUpdateRounds(rd_keyinstance *key,
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const void *input, void *output, int rounds);
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void cipherDecryptUpdateRounds(rd_keyinstance *key,
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const void *input, void *output, int rounds);
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#endif /* INTERMEDIATE_VALUE_KAT */
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#endif /* _CRYPTO__RIJNDAEL_H */
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/*
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* $PchId: rijndael.h,v 1.1 2005/06/01 10:13:45 philip Exp $
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*/
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