mirror of
https://github.com/ossrs/srs.git
synced 2025-03-09 15:49:59 +00:00
Upgrade openssl from 1.1.0e to 1.1.1b, with source code. 4.0.78
This commit is contained in:
parent
8f1c992379
commit
96dbd7bced
1476 changed files with 616554 additions and 4 deletions
321
trunk/3rdparty/openssl-1.1-fit/crypto/bn/bn_mod.c
vendored
Normal file
321
trunk/3rdparty/openssl-1.1-fit/crypto/bn/bn_mod.c
vendored
Normal file
|
@ -0,0 +1,321 @@
|
|||
/*
|
||||
* Copyright 1998-2018 The OpenSSL Project Authors. All Rights Reserved.
|
||||
*
|
||||
* Licensed under the OpenSSL license (the "License"). You may not use
|
||||
* this file except in compliance with the License. You can obtain a copy
|
||||
* in the file LICENSE in the source distribution or at
|
||||
* https://www.openssl.org/source/license.html
|
||||
*/
|
||||
|
||||
#include "internal/cryptlib.h"
|
||||
#include "bn_lcl.h"
|
||||
|
||||
int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)
|
||||
{
|
||||
/*
|
||||
* like BN_mod, but returns non-negative remainder (i.e., 0 <= r < |d|
|
||||
* always holds)
|
||||
*/
|
||||
|
||||
if (!(BN_mod(r, m, d, ctx)))
|
||||
return 0;
|
||||
if (!r->neg)
|
||||
return 1;
|
||||
/* now -|d| < r < 0, so we have to set r := r + |d| */
|
||||
return (d->neg ? BN_sub : BN_add) (r, r, d);
|
||||
}
|
||||
|
||||
int BN_mod_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,
|
||||
BN_CTX *ctx)
|
||||
{
|
||||
if (!BN_add(r, a, b))
|
||||
return 0;
|
||||
return BN_nnmod(r, r, m, ctx);
|
||||
}
|
||||
|
||||
/*
|
||||
* BN_mod_add variant that may be used if both a and b are non-negative and
|
||||
* less than m. The original algorithm was
|
||||
*
|
||||
* if (!BN_uadd(r, a, b))
|
||||
* return 0;
|
||||
* if (BN_ucmp(r, m) >= 0)
|
||||
* return BN_usub(r, r, m);
|
||||
*
|
||||
* which is replaced with addition, subtracting modulus, and conditional
|
||||
* move depending on whether or not subtraction borrowed.
|
||||
*/
|
||||
int bn_mod_add_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
|
||||
const BIGNUM *m)
|
||||
{
|
||||
size_t i, ai, bi, mtop = m->top;
|
||||
BN_ULONG storage[1024 / BN_BITS2];
|
||||
BN_ULONG carry, temp, mask, *rp, *tp = storage;
|
||||
const BN_ULONG *ap, *bp;
|
||||
|
||||
if (bn_wexpand(r, mtop) == NULL)
|
||||
return 0;
|
||||
|
||||
if (mtop > sizeof(storage) / sizeof(storage[0])
|
||||
&& (tp = OPENSSL_malloc(mtop * sizeof(BN_ULONG))) == NULL)
|
||||
return 0;
|
||||
|
||||
ap = a->d != NULL ? a->d : tp;
|
||||
bp = b->d != NULL ? b->d : tp;
|
||||
|
||||
for (i = 0, ai = 0, bi = 0, carry = 0; i < mtop;) {
|
||||
mask = (BN_ULONG)0 - ((i - a->top) >> (8 * sizeof(i) - 1));
|
||||
temp = ((ap[ai] & mask) + carry) & BN_MASK2;
|
||||
carry = (temp < carry);
|
||||
|
||||
mask = (BN_ULONG)0 - ((i - b->top) >> (8 * sizeof(i) - 1));
|
||||
tp[i] = ((bp[bi] & mask) + temp) & BN_MASK2;
|
||||
carry += (tp[i] < temp);
|
||||
|
||||
i++;
|
||||
ai += (i - a->dmax) >> (8 * sizeof(i) - 1);
|
||||
bi += (i - b->dmax) >> (8 * sizeof(i) - 1);
|
||||
}
|
||||
rp = r->d;
|
||||
carry -= bn_sub_words(rp, tp, m->d, mtop);
|
||||
for (i = 0; i < mtop; i++) {
|
||||
rp[i] = (carry & tp[i]) | (~carry & rp[i]);
|
||||
((volatile BN_ULONG *)tp)[i] = 0;
|
||||
}
|
||||
r->top = mtop;
|
||||
r->flags |= BN_FLG_FIXED_TOP;
|
||||
r->neg = 0;
|
||||
|
||||
if (tp != storage)
|
||||
OPENSSL_free(tp);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int BN_mod_add_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
|
||||
const BIGNUM *m)
|
||||
{
|
||||
int ret = bn_mod_add_fixed_top(r, a, b, m);
|
||||
|
||||
if (ret)
|
||||
bn_correct_top(r);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int BN_mod_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,
|
||||
BN_CTX *ctx)
|
||||
{
|
||||
if (!BN_sub(r, a, b))
|
||||
return 0;
|
||||
return BN_nnmod(r, r, m, ctx);
|
||||
}
|
||||
|
||||
/*
|
||||
* BN_mod_sub variant that may be used if both a and b are non-negative,
|
||||
* a is less than m, while b is of same bit width as m. It's implemented
|
||||
* as subtraction followed by two conditional additions.
|
||||
*
|
||||
* 0 <= a < m
|
||||
* 0 <= b < 2^w < 2*m
|
||||
*
|
||||
* after subtraction
|
||||
*
|
||||
* -2*m < r = a - b < m
|
||||
*
|
||||
* Thus it takes up to two conditional additions to make |r| positive.
|
||||
*/
|
||||
int bn_mod_sub_fixed_top(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
|
||||
const BIGNUM *m)
|
||||
{
|
||||
size_t i, ai, bi, mtop = m->top;
|
||||
BN_ULONG borrow, carry, ta, tb, mask, *rp;
|
||||
const BN_ULONG *ap, *bp;
|
||||
|
||||
if (bn_wexpand(r, mtop) == NULL)
|
||||
return 0;
|
||||
|
||||
rp = r->d;
|
||||
ap = a->d != NULL ? a->d : rp;
|
||||
bp = b->d != NULL ? b->d : rp;
|
||||
|
||||
for (i = 0, ai = 0, bi = 0, borrow = 0; i < mtop;) {
|
||||
mask = (BN_ULONG)0 - ((i - a->top) >> (8 * sizeof(i) - 1));
|
||||
ta = ap[ai] & mask;
|
||||
|
||||
mask = (BN_ULONG)0 - ((i - b->top) >> (8 * sizeof(i) - 1));
|
||||
tb = bp[bi] & mask;
|
||||
rp[i] = ta - tb - borrow;
|
||||
if (ta != tb)
|
||||
borrow = (ta < tb);
|
||||
|
||||
i++;
|
||||
ai += (i - a->dmax) >> (8 * sizeof(i) - 1);
|
||||
bi += (i - b->dmax) >> (8 * sizeof(i) - 1);
|
||||
}
|
||||
ap = m->d;
|
||||
for (i = 0, mask = 0 - borrow, carry = 0; i < mtop; i++) {
|
||||
ta = ((ap[i] & mask) + carry) & BN_MASK2;
|
||||
carry = (ta < carry);
|
||||
rp[i] = (rp[i] + ta) & BN_MASK2;
|
||||
carry += (rp[i] < ta);
|
||||
}
|
||||
borrow -= carry;
|
||||
for (i = 0, mask = 0 - borrow, carry = 0; i < mtop; i++) {
|
||||
ta = ((ap[i] & mask) + carry) & BN_MASK2;
|
||||
carry = (ta < carry);
|
||||
rp[i] = (rp[i] + ta) & BN_MASK2;
|
||||
carry += (rp[i] < ta);
|
||||
}
|
||||
|
||||
r->top = mtop;
|
||||
r->flags |= BN_FLG_FIXED_TOP;
|
||||
r->neg = 0;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* BN_mod_sub variant that may be used if both a and b are non-negative and
|
||||
* less than m
|
||||
*/
|
||||
int BN_mod_sub_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *b,
|
||||
const BIGNUM *m)
|
||||
{
|
||||
if (!BN_sub(r, a, b))
|
||||
return 0;
|
||||
if (r->neg)
|
||||
return BN_add(r, r, m);
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* slow but works */
|
||||
int BN_mod_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, const BIGNUM *m,
|
||||
BN_CTX *ctx)
|
||||
{
|
||||
BIGNUM *t;
|
||||
int ret = 0;
|
||||
|
||||
bn_check_top(a);
|
||||
bn_check_top(b);
|
||||
bn_check_top(m);
|
||||
|
||||
BN_CTX_start(ctx);
|
||||
if ((t = BN_CTX_get(ctx)) == NULL)
|
||||
goto err;
|
||||
if (a == b) {
|
||||
if (!BN_sqr(t, a, ctx))
|
||||
goto err;
|
||||
} else {
|
||||
if (!BN_mul(t, a, b, ctx))
|
||||
goto err;
|
||||
}
|
||||
if (!BN_nnmod(r, t, m, ctx))
|
||||
goto err;
|
||||
bn_check_top(r);
|
||||
ret = 1;
|
||||
err:
|
||||
BN_CTX_end(ctx);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int BN_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx)
|
||||
{
|
||||
if (!BN_sqr(r, a, ctx))
|
||||
return 0;
|
||||
/* r->neg == 0, thus we don't need BN_nnmod */
|
||||
return BN_mod(r, r, m, ctx);
|
||||
}
|
||||
|
||||
int BN_mod_lshift1(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx)
|
||||
{
|
||||
if (!BN_lshift1(r, a))
|
||||
return 0;
|
||||
bn_check_top(r);
|
||||
return BN_nnmod(r, r, m, ctx);
|
||||
}
|
||||
|
||||
/*
|
||||
* BN_mod_lshift1 variant that may be used if a is non-negative and less than
|
||||
* m
|
||||
*/
|
||||
int BN_mod_lshift1_quick(BIGNUM *r, const BIGNUM *a, const BIGNUM *m)
|
||||
{
|
||||
if (!BN_lshift1(r, a))
|
||||
return 0;
|
||||
bn_check_top(r);
|
||||
if (BN_cmp(r, m) >= 0)
|
||||
return BN_sub(r, r, m);
|
||||
return 1;
|
||||
}
|
||||
|
||||
int BN_mod_lshift(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m,
|
||||
BN_CTX *ctx)
|
||||
{
|
||||
BIGNUM *abs_m = NULL;
|
||||
int ret;
|
||||
|
||||
if (!BN_nnmod(r, a, m, ctx))
|
||||
return 0;
|
||||
|
||||
if (m->neg) {
|
||||
abs_m = BN_dup(m);
|
||||
if (abs_m == NULL)
|
||||
return 0;
|
||||
abs_m->neg = 0;
|
||||
}
|
||||
|
||||
ret = BN_mod_lshift_quick(r, r, n, (abs_m ? abs_m : m));
|
||||
bn_check_top(r);
|
||||
|
||||
BN_free(abs_m);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* BN_mod_lshift variant that may be used if a is non-negative and less than
|
||||
* m
|
||||
*/
|
||||
int BN_mod_lshift_quick(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m)
|
||||
{
|
||||
if (r != a) {
|
||||
if (BN_copy(r, a) == NULL)
|
||||
return 0;
|
||||
}
|
||||
|
||||
while (n > 0) {
|
||||
int max_shift;
|
||||
|
||||
/* 0 < r < m */
|
||||
max_shift = BN_num_bits(m) - BN_num_bits(r);
|
||||
/* max_shift >= 0 */
|
||||
|
||||
if (max_shift < 0) {
|
||||
BNerr(BN_F_BN_MOD_LSHIFT_QUICK, BN_R_INPUT_NOT_REDUCED);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (max_shift > n)
|
||||
max_shift = n;
|
||||
|
||||
if (max_shift) {
|
||||
if (!BN_lshift(r, r, max_shift))
|
||||
return 0;
|
||||
n -= max_shift;
|
||||
} else {
|
||||
if (!BN_lshift1(r, r))
|
||||
return 0;
|
||||
--n;
|
||||
}
|
||||
|
||||
/* BN_num_bits(r) <= BN_num_bits(m) */
|
||||
|
||||
if (BN_cmp(r, m) >= 0) {
|
||||
if (!BN_sub(r, r, m))
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
bn_check_top(r);
|
||||
|
||||
return 1;
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue