Revision dd67c8d5a5782b0734d6f16ae19ec2d4363d3c7b authored by Matthias J. Kannwischer on 02 April 2021, 01:21:24 UTC, committed by GitHub on 02 April 2021, 01:21:24 UTC
1 parent 8517285
aes.h
#ifndef AES_H
#define AES_H
#include <stdint.h>
#include <stdlib.h>
#define AES128_KEYBYTES 16
#define AES192_KEYBYTES 24
#define AES256_KEYBYTES 32
#define AESCTR_NONCEBYTES 12
#define AES_BLOCKBYTES 16
typedef struct {
uint64_t sk_exp[88];
} aes128ctx;
typedef struct {
uint64_t sk_exp[104];
} aes192ctx;
typedef struct {
uint64_t sk_exp[120];
} aes256ctx;
/** Initializes the context **/
void aes128_ecb_keyexp(aes128ctx *r, const unsigned char *key);
void aes128_ctr_keyexp(aes128ctx *r, const unsigned char *key);
void aes128_ecb(unsigned char *out, const unsigned char *in, size_t nblocks, const aes128ctx *ctx);
void aes128_ctr(unsigned char *out, size_t outlen, const unsigned char *iv, const aes128ctx *ctx);
void aes128_ctx_release(aes128ctx *r);
/** Initializes the context **/
void aes192_ecb_keyexp(aes192ctx *r, const unsigned char *key);
void aes192_ctr_keyexp(aes192ctx *r, const unsigned char *key);
void aes192_ecb(unsigned char *out, const unsigned char *in, size_t nblocks, const aes192ctx *ctx);
void aes192_ctr(unsigned char *out, size_t outlen, const unsigned char *iv, const aes192ctx *ctx);
void aes192_ctx_release(aes192ctx *r);
/** Initializes the context **/
void aes256_ecb_keyexp(aes256ctx *r, const unsigned char *key);
void aes256_ctr_keyexp(aes256ctx *r, const unsigned char *key);
void aes256_ecb(unsigned char *out, const unsigned char *in, size_t nblocks, const aes256ctx *ctx);
void aes256_ctr(unsigned char *out, size_t outlen, const unsigned char *iv, const aes256ctx *ctx);
void aes256_ctx_release(aes256ctx *r);
#endif
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