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Diffstat (limited to 'src/lib/libcrypto/bn/bn_exp.c')
-rw-r--r--src/lib/libcrypto/bn/bn_exp.c19
1 files changed, 1 insertions, 18 deletions
diff --git a/src/lib/libcrypto/bn/bn_exp.c b/src/lib/libcrypto/bn/bn_exp.c
index 64156f716f..3bb0dd1304 100644
--- a/src/lib/libcrypto/bn/bn_exp.c
+++ b/src/lib/libcrypto/bn/bn_exp.c
@@ -1,4 +1,4 @@
1/* $OpenBSD: bn_exp.c,v 1.33 2022/11/24 01:30:01 jsing Exp $ */ 1/* $OpenBSD: bn_exp.c,v 1.34 2022/11/26 13:56:33 jsing Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved. 3 * All rights reserved.
4 * 4 *
@@ -168,7 +168,6 @@ err:
168 if (r != rr && rr != NULL) 168 if (r != rr && rr != NULL)
169 BN_copy(r, rr); 169 BN_copy(r, rr);
170 BN_CTX_end(ctx); 170 BN_CTX_end(ctx);
171 bn_check_top(r);
172 return (ret); 171 return (ret);
173} 172}
174 173
@@ -178,9 +177,6 @@ BN_mod_exp_internal(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m
178{ 177{
179 int ret; 178 int ret;
180 179
181 bn_check_top(a);
182 bn_check_top(p);
183 bn_check_top(m);
184 180
185 /* For even modulus m = 2^k*m_odd, it might make sense to compute 181 /* For even modulus m = 2^k*m_odd, it might make sense to compute
186 * a^p mod m_odd and a^p mod 2^k separately (with Montgomery 182 * a^p mod m_odd and a^p mod 2^k separately (with Montgomery
@@ -222,7 +218,6 @@ BN_mod_exp_internal(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m
222 ret = BN_mod_exp_recp(r, a,p, m, ctx); 218 ret = BN_mod_exp_recp(r, a,p, m, ctx);
223 } 219 }
224 220
225 bn_check_top(r);
226 return (ret); 221 return (ret);
227} 222}
228 223
@@ -381,7 +376,6 @@ BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m,
381err: 376err:
382 BN_CTX_end(ctx); 377 BN_CTX_end(ctx);
383 BN_RECP_CTX_free(&recp); 378 BN_RECP_CTX_free(&recp);
384 bn_check_top(r);
385 return (ret); 379 return (ret);
386} 380}
387 381
@@ -401,9 +395,6 @@ BN_mod_exp_mont_internal(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p, const BIG
401 return BN_mod_exp_mont_consttime(rr, a, p, m, ctx, in_mont); 395 return BN_mod_exp_mont_consttime(rr, a, p, m, ctx, in_mont);
402 } 396 }
403 397
404 bn_check_top(a);
405 bn_check_top(p);
406 bn_check_top(m);
407 398
408 if (!BN_is_odd(m)) { 399 if (!BN_is_odd(m)) {
409 BNerror(BN_R_CALLED_WITH_EVEN_MODULUS); 400 BNerror(BN_R_CALLED_WITH_EVEN_MODULUS);
@@ -533,7 +524,6 @@ err:
533 if ((in_mont == NULL) && (mont != NULL)) 524 if ((in_mont == NULL) && (mont != NULL))
534 BN_MONT_CTX_free(mont); 525 BN_MONT_CTX_free(mont);
535 BN_CTX_end(ctx); 526 BN_CTX_end(ctx);
536 bn_check_top(rr);
537 return (ret); 527 return (ret);
538} 528}
539 529
@@ -658,9 +648,6 @@ BN_mod_exp_mont_consttime(BIGNUM *rr, const BIGNUM *a, const BIGNUM *p,
658 unsigned char *powerbuf = NULL; 648 unsigned char *powerbuf = NULL;
659 BIGNUM tmp, am; 649 BIGNUM tmp, am;
660 650
661 bn_check_top(a);
662 bn_check_top(p);
663 bn_check_top(m);
664 651
665 if (!BN_is_odd(m)) { 652 if (!BN_is_odd(m)) {
666 BNerror(BN_R_CALLED_WITH_EVEN_MODULUS); 653 BNerror(BN_R_CALLED_WITH_EVEN_MODULUS);
@@ -937,8 +924,6 @@ BN_mod_exp_mont_word(BIGNUM *rr, BN_ULONG a, const BIGNUM *p, const BIGNUM *m,
937 return -1; 924 return -1;
938 } 925 }
939 926
940 bn_check_top(p);
941 bn_check_top(m);
942 927
943 if (!BN_is_odd(m)) { 928 if (!BN_is_odd(m)) {
944 BNerror(BN_R_CALLED_WITH_EVEN_MODULUS); 929 BNerror(BN_R_CALLED_WITH_EVEN_MODULUS);
@@ -1052,7 +1037,6 @@ err:
1052 if ((in_mont == NULL) && (mont != NULL)) 1037 if ((in_mont == NULL) && (mont != NULL))
1053 BN_MONT_CTX_free(mont); 1038 BN_MONT_CTX_free(mont);
1054 BN_CTX_end(ctx); 1039 BN_CTX_end(ctx);
1055 bn_check_top(rr);
1056 return (ret); 1040 return (ret);
1057} 1041}
1058 1042
@@ -1172,6 +1156,5 @@ BN_mod_exp_simple(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m,
1172 1156
1173err: 1157err:
1174 BN_CTX_end(ctx); 1158 BN_CTX_end(ctx);
1175 bn_check_top(r);
1176 return (ret); 1159 return (ret);
1177} 1160}