Ejemplos de reset_prng_context en C++ (Cpp)

Ejemplo n.º 1

Archivo: fips_ansi_cprng.c Proyecto: FrozenData/SGS2-Kernel-Update2

static int cprng_init(struct crypto_tfm *tfm)
{
	struct prng_context *ctx = crypto_tfm_ctx(tfm);

	spin_lock_init(&ctx->prng_lock);

	ctx->tfm = crypto_alloc_cipher("aes", 0, 0);

	if (IS_ERR(ctx->tfm)) {
		dbgprint(KERN_CRIT "Failed to alloc tfm for context %p\n",
				ctx);
		return PTR_ERR(ctx->tfm);
	}

	if (reset_prng_context(ctx, NULL, DEFAULT_PRNG_KSZ, NULL, NULL) < 0)
		return -EINVAL;

	/*
	 * after allocation, we should always force the user to reset
	 * so they don't inadvertently use the insecure default values
	 * without specifying them intentially
	 */
	ctx->flags |= PRNG_NEED_RESET;
	return 0;
}

Ejemplo n.º 2

Archivo: ansi_cprng.c Proyecto: E-LLP/n900

static int cprng_init(struct crypto_tfm *tfm)
{
	struct prng_context *ctx = crypto_tfm_ctx(tfm);

	spin_lock_init(&ctx->prng_lock);

	return reset_prng_context(ctx, NULL, DEFAULT_PRNG_KSZ, NULL, NULL);
}

Ejemplo n.º 3

Archivo: ansi_cprng.c Proyecto: E-LLP/n900

static int cprng_reset(struct crypto_rng *tfm, u8 *seed, unsigned int slen)
{
	struct prng_context *prng = crypto_rng_ctx(tfm);
	u8 *key = seed + DEFAULT_PRNG_KSZ;

	if (slen < DEFAULT_PRNG_KSZ + DEFAULT_BLK_SZ)
		return -EINVAL;

	reset_prng_context(prng, key, DEFAULT_PRNG_KSZ, seed, NULL);

	if (prng->flags & PRNG_NEED_RESET)
		return -EINVAL;
	return 0;
}

Ejemplo n.º 4

Archivo: ansi_cprng.c Proyecto: AppEngine/linux-2.6

static int cprng_init(struct crypto_tfm *tfm)
{
	struct prng_context *ctx = crypto_tfm_ctx(tfm);

	spin_lock_init(&ctx->prng_lock);

	if (reset_prng_context(ctx, NULL, DEFAULT_PRNG_KSZ, NULL, NULL) < 0)
		return -EINVAL;

	/*
	 * after allocation, we should always force the user to reset
	 * so they don't inadvertently use the insecure default values
	 * without specifying them intentially
	 */
	ctx->flags |= PRNG_NEED_RESET;
	return 0;
}

Ejemplo n.º 5

Archivo: ansi_cprng.c Proyecto: AndroidGX/SimpleGX-MM-6.0_H815

/*
 *  This is the cprng_registered reset method the seed value is
 *  interpreted as the tuple { V KEY DT}
 *  V and KEY are required during reset, and DT is optional, detected
 *  as being present by testing the length of the seed
 */
static int cprng_reset(struct crypto_rng *tfm, u8 *seed, unsigned int slen)
{
	struct prng_context *prng = crypto_rng_ctx(tfm);
	u8 *key = seed + DEFAULT_BLK_SZ;
	u8 *dt = NULL;

	if (slen < DEFAULT_PRNG_KSZ + DEFAULT_BLK_SZ)
		return -EINVAL;

#ifdef CONFIG_CRYPTO_FIPS
	if (!memcmp(key, seed, DEFAULT_PRNG_KSZ))
		return -EINVAL;
#endif

	if (slen >= (2 * DEFAULT_BLK_SZ + DEFAULT_PRNG_KSZ))
		dt = key + DEFAULT_PRNG_KSZ;

	reset_prng_context(prng, key, DEFAULT_PRNG_KSZ, seed, dt);

	if (prng->flags & PRNG_NEED_RESET)
		return -EINVAL;
	return 0;
}

Ejemplo n.º 6

Archivo: ansi_cprng.c Proyecto: romanbb/android_kernel_lge_d851

static int cprng_init(struct crypto_tfm *tfm)
{
	struct prng_context *ctx = crypto_tfm_ctx(tfm);

	spin_lock_init(&ctx->prng_lock);
	ctx->tfm = crypto_alloc_cipher("aes", 0, 0);
	if (IS_ERR(ctx->tfm)) {
		dbgprint(KERN_CRIT "Failed to alloc tfm for context %p\n",
				ctx);
		return PTR_ERR(ctx->tfm);
	}

	if (reset_prng_context(ctx, NULL, DEFAULT_PRNG_KSZ, NULL, NULL) < 0)
		return -EINVAL;

	/*
                                                              
                                                               
                                       
  */
	ctx->flags |= PRNG_NEED_RESET;
	return 0;
}