BN_mod_mul

Compute r = (a * b) mod m.

Synopsis

Declared in <openssl/bn.h>

int
BN_mod_mul(
    BIGNUM* r,
    BIGNUM const* a,
    BIGNUM const* b,
    BIGNUM const* m,
    BN_CTX* ctx);

Return Value

1 on success, or 0 on error.

Parameters

NameDescription
rDestination for the product modulo m.
aFirst multiplicand.
bSecond multiplicand.
mModulus; must be non-zero.
ctxBN_CTX for temporary storage.