gcm.c File Reference

#include <openssl/base.h>
#include <assert.h>
#include <string.h>
#include <openssl/mem.h>
#include <openssl/cpu.h>
#include "internal.h"
#include "../../internal.h"

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Macros
#define	GCM_MUL(ctx, Xi)   gcm_gmult_nohw((ctx)->Xi.u, (ctx)->gcm_key.Htable)
#define	GHASH(ctx, in, len)   gcm_ghash_nohw((ctx)->Xi.u, (ctx)->gcm_key.Htable, in, len)
#define	GHASH_CHUNK   (3 * 1024)

Functions
int	CRYPTO_gcm128_aad (GCM128_CONTEXT *ctx, const uint8_t *aad, size_t len)
int	CRYPTO_gcm128_decrypt (GCM128_CONTEXT *ctx, const AES_KEY *key, const unsigned char *in, unsigned char *out, size_t len)
int	CRYPTO_gcm128_decrypt_ctr32 (GCM128_CONTEXT *ctx, const AES_KEY *key, const uint8_t *in, uint8_t *out, size_t len, ctr128_f stream)
int	CRYPTO_gcm128_encrypt (GCM128_CONTEXT *ctx, const AES_KEY *key, const uint8_t *in, uint8_t *out, size_t len)
int	CRYPTO_gcm128_encrypt_ctr32 (GCM128_CONTEXT *ctx, const AES_KEY *key, const uint8_t *in, uint8_t *out, size_t len, ctr128_f stream)
int	CRYPTO_gcm128_finish (GCM128_CONTEXT *ctx, const uint8_t *tag, size_t len)
void	CRYPTO_gcm128_init_key (GCM128_KEY *gcm_key, const AES_KEY *aes_key, block128_f block, int block_is_hwaes)
void	CRYPTO_gcm128_setiv (GCM128_CONTEXT *ctx, const AES_KEY *key, const uint8_t *iv, size_t len)
void	CRYPTO_gcm128_tag (GCM128_CONTEXT *ctx, unsigned char *tag, size_t len)
void	CRYPTO_ghash_init (gmult_func *out_mult, ghash_func *out_hash, u128 *out_key, u128 out_table[16], int *out_is_avx, const uint8_t gcm_key[16])

Variables
static const size_t	kSizeTWithoutLower4Bits = (size_t) -16

Macro Definition Documentation

GCM_MUL

#define GCM_MUL	(		ctx,
			Xi
	)		gcm_gmult_nohw((ctx)->Xi.u, (ctx)->gcm_key.Htable)

Definition at line 66 of file gcm.c.

GHASH

#define GHASH	(		ctx,
			in,
			len
	)		gcm_ghash_nohw((ctx)->Xi.u, (ctx)->gcm_key.Htable, in, len)

Definition at line 67 of file gcm.c.

GHASH_CHUNK

#define GHASH_CHUNK   (3 * 1024)

Definition at line 72 of file gcm.c.

Function Documentation

CRYPTO_gcm128_aad()

int CRYPTO_gcm128_aad	(	GCM128_CONTEXT *	ctx,
		const uint8_t *	aad,
		size_t	len
	)

Definition at line 281 of file gcm.c.

CRYPTO_gcm128_decrypt()

int CRYPTO_gcm128_decrypt	(	GCM128_CONTEXT *	ctx,
		const AES_KEY *	key,
		const unsigned char *	in,
		unsigned char *	out,
		size_t	len
	)

Definition at line 423 of file gcm.c.

CRYPTO_gcm128_decrypt_ctr32()

int CRYPTO_gcm128_decrypt_ctr32	(	GCM128_CONTEXT *	ctx,
		const AES_KEY *	key,
		const uint8_t *	in,
		uint8_t *	out,
		size_t	len,
		ctr128_f	stream
	)

Definition at line 603 of file gcm.c.

CRYPTO_gcm128_encrypt()

int CRYPTO_gcm128_encrypt	(	GCM128_CONTEXT *	ctx,
		const AES_KEY *	key,
		const uint8_t *	in,
		uint8_t *	out,
		size_t	len
	)

Definition at line 334 of file gcm.c.

CRYPTO_gcm128_encrypt_ctr32()

int CRYPTO_gcm128_encrypt_ctr32	(	GCM128_CONTEXT *	ctx,
		const AES_KEY *	key,
		const uint8_t *	in,
		uint8_t *	out,
		size_t	len,
		ctr128_f	stream
	)

Definition at line 517 of file gcm.c.

CRYPTO_gcm128_finish()

int CRYPTO_gcm128_finish	(	GCM128_CONTEXT *	ctx,
		const uint8_t *	tag,
		size_t	len
	)

Definition at line 693 of file gcm.c.

CRYPTO_gcm128_init_key()

void CRYPTO_gcm128_init_key	(	GCM128_KEY *	gcm_key,
		const AES_KEY *	aes_key,
		block128_f	block,
		int	block_is_hwaes
	)

Definition at line 215 of file gcm.c.

CRYPTO_gcm128_setiv()

void CRYPTO_gcm128_setiv	(	GCM128_CONTEXT *	ctx,
		const AES_KEY *	key,
		const uint8_t *	iv,
		size_t	len
	)

Definition at line 231 of file gcm.c.

CRYPTO_gcm128_tag()

void CRYPTO_gcm128_tag	(	GCM128_CONTEXT *	ctx,
		unsigned char *	tag,
		size_t	len
	)

Definition at line 717 of file gcm.c.

CRYPTO_ghash_init()

void CRYPTO_ghash_init	(	gmult_func *	out_mult,
		ghash_func *	out_hash,
		u128 *	out_key,
		u128	out_table[16],
		int *	out_is_avx,
		const uint8_t	gcm_key[16]
	)

Definition at line 136 of file gcm.c.

Variable Documentation

kSizeTWithoutLower4Bits

const size_t kSizeTWithoutLower4Bits = (size_t) -16

static

Definition at line 63 of file gcm.c.