Solve the quadratic rˆ2 + r = a mod p over GF(2ˆm) with the modulus given as an int array.

Synopsis

Declared in <openssl/bn.h>

int
BN_GF2m_mod_solve_quad_arr(
    BIGNUM* r,
    BIGNUM const* a,
    int 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

Descending exponent list of the irreducible, terminated by ‐1.

ctx

BN_CTX scratch space.

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