Solve the quadratic rˆ2 + r = a mod p over GF(2ˆm).

Synopsis

Declared in <openssl/bn.h>

int
BN_GF2m_mod_solve_quad(
    BIGNUM* r,
    BIGNUM const* a,
    BIGNUM const* p,
    BN_CTX* ctx);

Return Value

1 on success, or 0 if no solution / on error.

Parameters

Name

Description

r

Destination for one solution when it exists.

a

Right‐hand side.

p

Irreducible modulus polynomial.

ctx

BN_CTX scratch space.

Created with MrDocs