crypto_alloc_rng (9) Linux Manual Page
crypto_alloc_rng – – allocate RNG handle
Synopsis
struct crypto_rng *crypto_alloc_rng(const char *alg_name, u32 type, u32 mask);Arguments
alg_name
-
- is the cra_name / name or cra_driver_name / driver name of the message digest cipher
type
- specifies the type of the cipher
mask
- specifies the mask for the cipher
Description
Allocate a cipher handle for a random number generator. The returned struct crypto_rng is the cipher handle that is required for any subsequent API invocation for that random number generator.
For all random number generators, this call creates a new private copy of the random number generator that does not share a state with other instances. The only exception is the “krng” random number generator which is a kernel crypto API use case for the get_random_bytes function of the /dev/random driver.
Return
allocated cipher handle in case of success; IS_ERR is true in case of an error, PTR_ERR returns the error code.
Authors
Stephan Mueller <smueller [at] chronox.de>
- Author.
Marek Vasut <marek [at] denx.de>
- Author.