| /* |
| * contrib/pgcrypto/rijndael.h |
| * |
| * $OpenBSD: rijndael.h,v 1.3 2001/05/09 23:01:32 markus Exp $ */ |
| |
| /* This is an independent implementation of the encryption algorithm: */ |
| /* */ |
| /* RIJNDAEL by Joan Daemen and Vincent Rijmen */ |
| /* */ |
| /* which is a candidate algorithm in the Advanced Encryption Standard */ |
| /* programme of the US National Institute of Standards and Technology. */ |
| /* */ |
| /* Copyright in this implementation is held by Dr B R Gladman but I */ |
| /* hereby give permission for its free direct or derivative use subject */ |
| /* to acknowledgment of its origin and compliance with any conditions */ |
| /* that the originators of the algorithm place on its exploitation. */ |
| /* */ |
| /* Dr Brian Gladman (gladman@seven77.demon.co.uk) 14th January 1999 */ |
| |
| typedef struct rijndaelCtx rijndaelCtx; |
| |
| struct rijndaelCtx { |
| uint32_t k_len; |
| int decrypt; |
| uint32_t e_key[64]; |
| uint32_t d_key[64]; |
| }; |
| |
| /* Standard interface for AES cryptographic routines */ |
| |
| /* These are all based on 32 bit unsigned values and will therefore */ |
| /* require endian conversions for big-endian architectures */ |
| |
| rijndaelCtx *rijndael_set_key(rijndaelCtx *, const uint32_t *, const uint32_t, |
| int); |
| void rijndael_encrypt(rijndaelCtx *, const uint32_t *, uint32_t *); |
| void rijndael_decrypt(rijndaelCtx *, const uint32_t *, uint32_t *); |
| |
| /* conventional interface */ |
| |
| void aes_set_key(rijndaelCtx *ctx, const uint8_t *key, unsigned keybits, |
| int enc); |
| void aes_ecb_encrypt(rijndaelCtx *ctx, uint8_t *data, unsigned len); |
| void aes_ecb_decrypt(rijndaelCtx *ctx, uint8_t *data, unsigned len); |
| void aes_cbc_encrypt(rijndaelCtx *ctx, uint8_t *iva, uint8_t *data, |
| unsigned len); |
| void aes_cbc_decrypt(rijndaelCtx *ctx, uint8_t *iva, uint8_t *data, |
| unsigned len); |