Test whether p is prime using the library's default primality checks.

Synopsis

Declared in <openssl/bn.h>

int
BN_check_prime(
    BIGNUM const* p,
    BN_CTX* ctx,
    BN_GENCB* cb);

Return Value

1 if probably prime, 0 if composite, or ‐1 on error.

Parameters

Name

Description

p

Candidate integer.

ctx

Optional BN_CTX, or NULL to allocate internally.

cb

Optional progress callback, or NULL.

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