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.
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