C++ (Cpp) gcm_aes_set_iv示例

示例#1

文件： cipher.c 项目： vote539/gnutls

static int
wrap_nettle_cipher_setiv(void *_ctx, const void *iv, size_t ivsize)
{
	struct nettle_cipher_ctx *ctx = _ctx;

	switch (ctx->algo) {
	case GNUTLS_CIPHER_AES_128_GCM:
	case GNUTLS_CIPHER_AES_256_GCM:
		gcm_aes_set_iv(&ctx->ctx.aes_gcm, 
				ivsize, iv);
		break;
	case GNUTLS_CIPHER_CAMELLIA_128_GCM:
	case GNUTLS_CIPHER_CAMELLIA_256_GCM:
		_gcm_camellia_set_iv(&ctx->ctx.camellia_gcm,
				     ivsize, iv);
		break;
	case GNUTLS_CIPHER_SALSA20_256:
	case GNUTLS_CIPHER_ESTREAM_SALSA20_256:
		if (ivsize != SALSA20_IV_SIZE)
			return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST);

		salsa20_set_iv(&ctx->ctx.salsa20, iv);
		break;
	default:
		if (ivsize > ctx->block_size)
			return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST);

		memcpy(ctx->iv, iv, ivsize);
	}

	return 0;
}

示例#2

文件： cipher.c 项目： intgr/gnutls

static int
wrap_nettle_cipher_setiv (void *_ctx, const void *iv, size_t ivsize)
{
struct nettle_cipher_ctx *ctx = _ctx;

  switch (ctx->algo)
    {
    case GNUTLS_CIPHER_AES_128_GCM:
    case GNUTLS_CIPHER_AES_256_GCM:
      if (ivsize != GCM_DEFAULT_NONCE_SIZE)
        {
          gnutls_assert ();
          return GNUTLS_E_INVALID_REQUEST;
        }

      gcm_aes_set_iv(&ctx->ctx.aes_gcm, GCM_DEFAULT_NONCE_SIZE, iv);
      break;
    default:
      if (ivsize > ctx->block_size)
        {
          gnutls_assert ();
          return GNUTLS_E_INVALID_REQUEST;
        }

      memcpy (ctx->iv, iv, ivsize);
    }

  return 0;
}

示例#3

文件： gcm-test.c 项目： gnutls/nettle

static void
gcm_unified_aes128_set_iv (void *ctx, const uint8_t *iv)
{
  gcm_aes_set_iv (ctx, GCM_IV_SIZE, iv);
}