freebsd-skq/crypto/bn_int.h
2018-08-14 16:18:14 +00:00

16 lines
793 B
C

/*
* Some BIGNUM functions assume most significant limb to be non-zero, which
* is customarily arranged by bn_correct_top. Output from below functions
* is not processed with bn_correct_top, and for this reason it may not be
* returned out of public API. It may only be passed internally into other
* functions known to support non-minimal or zero-padded BIGNUMs.
*/
int bn_mul_mont_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
BN_MONT_CTX *mont, BN_CTX *ctx);
int bn_to_mont_fixed_top(BIGNUM *r, const BIGNUM *a, BN_MONT_CTX *mont,
BN_CTX *ctx);
int bn_mod_add_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
const BIGNUM *m);
int bn_bn2binpad(const BIGNUM *a, unsigned char *to, int tolen);