crypto/bn/bn_nist.c

352 	register BN_ULONG *r_d, *a_d = a->d;
382 		r_d = r->d;
383 		nist_cp_bn(r_d, a_d, BN_NIST_192_TOP);
386 		r_d = a_d;
391 	carry = (int)bn_add_words(r_d, r_d, t_d, BN_NIST_192_TOP);
393 	carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_192_TOP);
395 	carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_192_TOP);
398 		carry = (int)bn_sub_words(r_d,r_d,_nist_p_192[carry-1],BN_NIST_192_TOP);
408 	mask  = 0-(size_t)bn_sub_words(c_d,r_d,_nist_p_192[0],BN_NIST_192_TOP);
410 	res   = (BN_ULONG *)(((size_t)c_d&~mask) | ((size_t)r_d&mask));
411 	nist_cp_bn(r_d, res, BN_NIST_192_TOP);
436 	BN_ULONG *r_d, *a_d = a->d;
468 		r_d = r->d;
469 		nist_cp_bn(r_d, a_d, BN_NIST_224_TOP);
472 		r_d = a_d;
480 	r_d[BN_NIST_224_TOP-1] &= BN_MASK2l;
485 	carry = (int)bn_add_words(r_d, r_d, t_d, BN_NIST_224_TOP);
487 	carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_224_TOP);
489 	carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_224_TOP);
491 	carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_224_TOP);
494 	carry = (int)(r_d[BN_NIST_224_TOP-1]>>32);
499 		carry = (int)bn_sub_words(r_d,r_d,_nist_p_224[carry-1],BN_NIST_224_TOP);
501 		carry=(int)(~(r_d[BN_NIST_224_TOP-1]>>32))&1;
512 		carry = (int)bn_add_words(r_d,r_d,_nist_p_224[-carry-1],BN_NIST_224_TOP);
520 	mask  = 0-(size_t)(*u.f)(c_d,r_d,_nist_p_224[0],BN_NIST_224_TOP);
522 	res   = (BN_ULONG *)(((size_t)c_d&~mask) | ((size_t)r_d&mask));
523 	nist_cp_bn(r_d, res, BN_NIST_224_TOP);
547 	register BN_ULONG *a_d = a->d, *r_d;
578 		r_d = r->d;
579 		nist_cp_bn(r_d, a_d, BN_NIST_256_TOP);
582 		r_d = a_d;
605 	carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_256_TOP);
608 	carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_256_TOP);
611 	carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_256_TOP);
614 	carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP);
617 	carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP);
620 	carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP);
623 	carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_256_TOP);
628 		carry = (int)bn_sub_words(r_d,r_d,_nist_p_256[carry-1],BN_NIST_256_TOP);
631 		carry = (int)bn_add_words(r_d,r_d,_nist_p_256[-carry-1],BN_NIST_256_TOP);
638 	mask  = 0-(size_t)(*u.f)(c_d,r_d,_nist_p_256[0],BN_NIST_256_TOP);
640 	res   = (BN_ULONG *)(((size_t)c_d&~mask) | ((size_t)r_d&mask));
641 	nist_cp_bn(r_d, res, BN_NIST_256_TOP);
669 	register BN_ULONG *r_d, *a_d = a->d;
701 		r_d = r->d;
702 		nist_cp_bn(r_d, a_d, BN_NIST_384_TOP);
705 		r_d = a_d;
724 	carry = (int)bn_add_words(r_d+(128/BN_BITS2), r_d+(128/BN_BITS2),
727 	carry += (int)bn_add_words(r_d, r_d, buf, BN_NIST_384_TOP);
730 	carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP);
733 	carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP);
736 	carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP);
739 	carry += (int)bn_add_words(r_d, r_d, t_d, BN_NIST_384_TOP);
742 	carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_384_TOP);
745 	carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_384_TOP);
748 	carry -= (int)bn_sub_words(r_d, r_d, t_d, BN_NIST_384_TOP);
753 		carry = (int)bn_sub_words(r_d,r_d,_nist_p_384[carry-1],BN_NIST_384_TOP);
756 		carry = (int)bn_add_words(r_d,r_d,_nist_p_384[-carry-1],BN_NIST_384_TOP);
763 	mask  = 0-(size_t)(*u.f)(c_d,r_d,_nist_p_384[0],BN_NIST_384_TOP);
765 	res   = (BN_ULONG *)(((size_t)c_d&~mask) | ((size_t)r_d&mask));
766 	nist_cp_bn(r_d, res, BN_NIST_384_TOP);
781 	BN_ULONG *r_d, *a_d = a->d,
809 		r_d = r->d;
810 		nist_cp_bn(r_d,a_d, BN_NIST_521_TOP);
813 		r_d = a_d;
826 	r_d[i] &= BN_NIST_521_TOP_MASK;
828 	bn_add_words(r_d,r_d,t_d,BN_NIST_521_TOP);
829 	mask = 0-(size_t)bn_sub_words(t_d,r_d,_nist_p_521,BN_NIST_521_TOP);
830 	res  = (BN_ULONG *)(((size_t)t_d&~mask) | ((size_t)r_d&mask));
831 	nist_cp_bn(r_d,res,BN_NIST_521_TOP);