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/*
* $PostgreSQL: pgsql/contrib/pgcrypto/rijndael.h,v 1.6 2008/05/17 01:28:21 adunstan Exp $
*
* $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 */
#ifndef _RIJNDAEL_H_
#define _RIJNDAEL_H_
/* 1. Standard types for AES cryptography source code */
typedef uint8 u1byte; /* an 8 bit unsigned character type */
typedef uint16 u2byte; /* a 16 bit unsigned integer type */
typedef uint32 u4byte; /* a 32 bit unsigned integer type */
typedef int8 s1byte; /* an 8 bit signed character type */
typedef int16 s2byte; /* a 16 bit signed integer type */
typedef int32 s4byte; /* a 32 bit signed integer type */
typedef struct _rijndael_ctx
{
u4byte k_len;
int decrypt;
u4byte e_key[64];
u4byte d_key[64];
} rijndael_ctx;
/* 2. 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 */
rijndael_ctx *
rijndael_set_key(rijndael_ctx *, const u4byte *, const u4byte, int);
void rijndael_encrypt(rijndael_ctx *, const u4byte *, u4byte *);
void rijndael_decrypt(rijndael_ctx *, const u4byte *, u4byte *);
/* conventional interface */
void aes_set_key(rijndael_ctx * ctx, const uint8 *key, unsigned keybits, int enc);
void aes_ecb_encrypt(rijndael_ctx * ctx, uint8 *data, unsigned len);
void aes_ecb_decrypt(rijndael_ctx * ctx, uint8 *data, unsigned len);
void aes_cbc_encrypt(rijndael_ctx * ctx, uint8 *iva, uint8 *data, unsigned len);
void aes_cbc_decrypt(rijndael_ctx * ctx, uint8 *iva, uint8 *data, unsigned len);
#endif /* _RIJNDAEL_H_ */
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