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authorTheo Buehler <tb@cvs.openbsd.org>2023-07-26 12:26:49 +0000
committerTheo Buehler <tb@cvs.openbsd.org>2023-07-26 12:26:49 +0000
commit3ef4e854c3c9cde679e38a92f587e46bdf8a88a9 (patch)
tree05351f881f6c64360d49d9de9bb632b7b7962093 /lib/libcrypto/ec
parent0a6ef94dbbe56256671139e300427bda59f8ccbc (diff)
Unindent a big block in EC_GROUP_get_affine_coordinates()
Diffstat (limited to 'lib/libcrypto/ec')
-rw-r--r--lib/libcrypto/ec/ecp_smpl.c66
1 files changed, 34 insertions, 32 deletions
diff --git a/lib/libcrypto/ec/ecp_smpl.c b/lib/libcrypto/ec/ecp_smpl.c
index add13483729..f591fa02675 100644
--- a/lib/libcrypto/ec/ecp_smpl.c
+++ b/lib/libcrypto/ec/ecp_smpl.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ecp_smpl.c,v 1.53 2023/07/26 12:24:28 tb Exp $ */
+/* $OpenBSD: ecp_smpl.c,v 1.54 2023/07/26 12:26:48 tb Exp $ */
/* Includes code written by Lenka Fibikova <fibikova@exp-math.uni-essen.de>
* for the OpenSSL project.
* Includes code written by Bodo Moeller for the OpenSSL project.
@@ -417,47 +417,49 @@ ec_GFp_simple_point_get_affine_coordinates(const EC_GROUP *group,
goto err;
if (!ec_decode_scalar(group, y, &point->Y, ctx))
goto err;
+ goto done;
+ }
+
+ if (BN_mod_inverse_ct(Z_1, z, &group->field, ctx) == NULL) {
+ ECerror(ERR_R_BN_LIB);
+ goto err;
+ }
+ if (group->meth->field_encode == NULL) {
+ /* field_sqr works on standard representation */
+ if (!group->meth->field_sqr(group, Z_2, Z_1, ctx))
+ goto err;
} else {
- if (BN_mod_inverse_ct(Z_1, z, &group->field, ctx) == NULL) {
- ECerror(ERR_R_BN_LIB);
+ if (!BN_mod_sqr(Z_2, Z_1, &group->field, ctx))
goto err;
- }
+ }
+
+ if (x != NULL) {
+ /*
+ * in the Montgomery case, field_mul will cancel out
+ * Montgomery factor in X:
+ */
+ if (!group->meth->field_mul(group, x, &point->X, Z_2, ctx))
+ goto err;
+ }
+ if (y != NULL) {
if (group->meth->field_encode == NULL) {
- /* field_sqr works on standard representation */
- if (!group->meth->field_sqr(group, Z_2, Z_1, ctx))
+ /* field_mul works on standard representation */
+ if (!group->meth->field_mul(group, Z_3, Z_2, Z_1, ctx))
goto err;
} else {
- if (!BN_mod_sqr(Z_2, Z_1, &group->field, ctx))
+ if (!BN_mod_mul(Z_3, Z_2, Z_1, &group->field, ctx))
goto err;
}
- if (x != NULL) {
- /*
- * in the Montgomery case, field_mul will cancel out
- * Montgomery factor in X:
- */
- if (!group->meth->field_mul(group, x, &point->X, Z_2, ctx))
- goto err;
- }
- if (y != NULL) {
- if (group->meth->field_encode == NULL) {
- /* field_mul works on standard representation */
- if (!group->meth->field_mul(group, Z_3, Z_2, Z_1, ctx))
- goto err;
- } else {
- if (!BN_mod_mul(Z_3, Z_2, Z_1, &group->field, ctx))
- goto err;
- }
-
- /*
- * in the Montgomery case, field_mul will cancel out
- * Montgomery factor in Y:
- */
- if (!group->meth->field_mul(group, y, &point->Y, Z_3, ctx))
- goto err;
- }
+ /*
+ * in the Montgomery case, field_mul will cancel out
+ * Montgomery factor in Y:
+ */
+ if (!group->meth->field_mul(group, y, &point->Y, Z_3, ctx))
+ goto err;
}
+ done:
ret = 1;
err: