Convert a from Montgomery representation to a normal residue modulo mont‐>N.

Synopsis

Declared in <openssl/bn.h>

int
BN_from_montgomery(
    BIGNUM* r,
    BIGNUM const* a,
    BN_MONT_CTX* mont,
    BN_CTX* ctx);

Return Value

1 on success, or 0 on error.

Parameters

Name

Description

r

Destination for the converted value.

a

Value in Montgomery form.

mont

Montgomery context from BN_MONT_CTX_set().

ctx

BN_CTX scratch space.

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