| 1 | /* rijndael-api.h - Rijndael encryption programming interface.
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| 2 | * Author: Kees J. Bot
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| 3 | * 3 Nov 2000
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| 4 | * Heavily based on the original API code by Antoon Bosselaers,
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| 5 | * Vincent Rijmen, and Paulo Barreto, but with a different interface.
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| 6 | *
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| 7 | * This code (.h and .c) is in the public domain.
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| 8 | */
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| 9 |
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| 10 | #ifndef _CRYPTO__RIJNDAEL_H
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| 11 | #define _CRYPTO__RIJNDAEL_H
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| 12 |
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| 13 | /* Error codes. */
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| 14 | #define RD_BAD_KEY_MAT -1 /* Key material not of correct length */
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| 15 | #define RD_BAD_BLOCK_LENGTH -2 /* Data is not a block multiple */
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| 16 | #define RD_BAD_DATA -3 /* Data contents are invalid (bad padding?) */
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| 17 |
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| 18 | /* Key information. */
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| 19 | #define RD_KEY_HEX -1 /* Key is in hex (otherwise octet length) */
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| 20 | #define RD_MAXROUNDS 14 /* Max number of encryption rounds. */
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| 21 |
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| 22 | typedef struct {
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| 23 | int rounds; /* Key-length-dependent number of rounds */
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| 24 | unsigned char encsched[RD_MAXROUNDS+1][4][4]; /* Encr key schedule */
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| 25 | unsigned char decsched[RD_MAXROUNDS+1][4][4]; /* Decr key schedule */
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| 26 | } rd_keyinstance;
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| 27 |
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| 28 | #define AES_BLOCKSIZE 16
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| 29 |
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| 30 | /* Function prototypes. */
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| 31 |
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| 32 | int rijndael_makekey(rd_keyinstance *_key,
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| 33 | size_t _keylen, const void *_keymaterial);
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| 34 |
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| 35 | ssize_t rijndael_ecb_encrypt(rd_keyinstance *_key,
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| 36 | const void *_input, void *_output, size_t _length, void *_dummyIV);
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| 37 |
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| 38 | ssize_t rijndael_ecb_decrypt(rd_keyinstance *_key,
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| 39 | const void *_input, void *_output, size_t _length, void *_dummyIV);
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| 40 |
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| 41 | ssize_t rijndael_cbc_encrypt(rd_keyinstance *_key,
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| 42 | const void *_input, void *_output, size_t _length, void *_IV);
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| 43 |
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| 44 | ssize_t rijndael_cbc_decrypt(rd_keyinstance *_key,
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| 45 | const void *_input, void *_output, size_t _length, void *_IV);
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| 46 |
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| 47 | ssize_t rijndael_cfb1_encrypt(rd_keyinstance *_key,
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| 48 | const void *_input, void *_output, size_t _length, void *_IV);
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| 49 |
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| 50 | ssize_t rijndael_cfb1_decrypt(rd_keyinstance *_key,
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| 51 | const void *_input, void *_output, size_t _length, void *_IV);
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| 52 |
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| 53 | ssize_t rijndael_cfb8_encrypt(rd_keyinstance *_key,
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| 54 | const void *_input, void *_output, size_t _length, void *_IV);
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| 55 |
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| 56 | ssize_t rijndael_cfb8_decrypt(rd_keyinstance *_key,
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| 57 | const void *_input, void *_output, size_t _length, void *_IV);
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| 58 |
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| 59 | ssize_t rijndael_pad(void *_input, size_t _length);
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| 60 |
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| 61 | ssize_t rijndael_unpad(const void *_input, size_t _length);
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| 62 |
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| 63 | typedef ssize_t (*rd_function)(rd_keyinstance *_key,
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| 64 | const void *_input, void *_output, size_t _length, void *_IV);
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| 65 |
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| 66 | #ifdef INTERMEDIATE_VALUE_KAT
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| 67 |
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| 68 | void cipherEncryptUpdateRounds(rd_keyinstance *key,
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| 69 | const void *input, void *output, int rounds);
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| 70 |
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| 71 | void cipherDecryptUpdateRounds(rd_keyinstance *key,
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| 72 | const void *input, void *output, int rounds);
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| 73 |
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| 74 | #endif /* INTERMEDIATE_VALUE_KAT */
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| 75 |
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| 76 | #endif /* _CRYPTO__RIJNDAEL_H */
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| 77 |
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| 78 | /*
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| 79 | * $PchId: rijndael.h,v 1.1 2005/06/01 10:13:45 philip Exp $
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| 80 | */
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