openssl/crypto/aes/aes.h

/* crypto/aes/aes.h -*- mode:C; c-file-style: "eay" -*- */
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#ifndef HEADER_AES_H
#define HEADER_AES_H

#ifdef OPENSSL_NO_AES
#error AES is disabled.
#endif

static const int AES_DECRYPT = 0;
static const int AES_ENCRYPT = 1;
#define AES_MAXNR 14 /* array size can't be a const in C */
static const int AES_BLOCK_SIZE = 16; /* bytes */

#ifdef  __cplusplus
extern "C" {
#endif

/* This should be a hidden type, but EVP requires that the size be known */
struct aes_key_st {
    unsigned long rd_key[4 *(AES_MAXNR + 1)];
    int rounds;
};
typedef struct aes_key_st AES_KEY;

const char *AES_options(void);

int AES_set_encrypt_key(const unsigned char *userKey, const int bits, AES_KEY *key);
int AES_set_decrypt_key(const unsigned char *userKey, const int bits, AES_KEY *key);

void AES_encrypt(const unsigned char *in, unsigned char *out, const AES_KEY *key);
void AES_decrypt(const unsigned char *in, unsigned char *out, const AES_KEY *key);

void AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
	       	     const AES_KEY *key, const int enc);
void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
	       	     const unsigned long length, const AES_KEY *key,
		     unsigned char *ivec, const int enc);

#ifdef  __cplusplus
}
#endif

#endif /* !HEADER_AES_H */