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Reworked patch forbidding explicit EC parameters

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Resolves: rhbz#2066412
This commit is contained in:
Dmitry Belyavskiy 2022-03-24 17:45:16 +01:00
parent 1447e64bc3
commit 4dc19fe033
2 changed files with 118 additions and 76 deletions
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188
0012-Disable-explicit-ec.patch
View File

@ -1,80 +1,122 @@
diff -up openssl-3.0.1/crypto/ec/ec_lib.c.disable_explicit_ec openssl-3.0.1/crypto/ec/ec_lib.c
--- openssl-3.0.1/crypto/ec/ec_lib.c.disable_explicit_ec 2022-02-22 09:08:48.557823665 +0100
+++ openssl-3.0.1/crypto/ec/ec_lib.c 2022-02-22 09:09:26.634133847 +0100
@@ -1458,7 +1458,7 @@ static EC_GROUP *ec_group_explicit_to_na
diff -up openssl-3.0.1/crypto/ec/ec_asn1.c.disable_explicit_ec openssl-3.0.1/crypto/ec/ec_asn1.c
--- openssl-3.0.1/crypto/ec/ec_asn1.c.disable_explicit_ec 2022-03-22 13:10:45.718077845 +0100
+++ openssl-3.0.1/crypto/ec/ec_asn1.c 2022-03-22 13:12:46.626599016 +0100
@@ -895,6 +895,12 @@ EC_GROUP *d2i_ECPKParameters(EC_GROUP **
if (params->type == ECPKPARAMETERS_TYPE_EXPLICIT)
group->decoded_from_explicit_params = 1;
+ if (EC_GROUP_check_named_curve(group, 0, NULL) == NID_undef) {
+ EC_GROUP_free(group);
+ ECPKPARAMETERS_free(params);
+ return NULL;
+ }
+
if (a) {
EC_GROUP_free(*a);
*a = group;
@@ -954,6 +959,11 @@ EC_KEY *d2i_ECPrivateKey(EC_KEY **a, con
goto err;
}
} else {
- ret_group = (EC_GROUP *)group;
+ if (EC_GROUP_check_named_curve(ret->group, 0, NULL) == NID_undef) {
+ ERR_raise(ERR_LIB_EC, EC_R_UNKNOWN_GROUP);
+ goto err;
}
EC_GROUP_free(dup);
return ret_group;
diff -up openssl-3.0.1/providers/implementations/keymgmt/ec_kmgmt.c.disable_explicit_ec openssl-3.0.1/providers/implementations/keymgmt/ec_kmgmt.c
--- openssl-3.0.1/providers/implementations/keymgmt/ec_kmgmt.c.disable_explicit_ec 2022-02-22 13:04:16.850856612 +0100
+++ openssl-3.0.1/providers/implementations/keymgmt/ec_kmgmt.c 2022-02-22 14:16:19.848369641 +0100
@@ -936,11 +936,8 @@ int ec_validate(const void *keydata, int
if ((selection & OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS) != 0) {
int flags = EC_KEY_get_flags(eck);
- if ((flags & EC_FLAG_CHECK_NAMED_GROUP) != 0)
- ok = ok && EC_GROUP_check_named_curve(EC_KEY_get0_group(eck),
- (flags & EC_FLAG_CHECK_NAMED_GROUP_NIST) != 0, ctx);
- else
- ok = ok && EC_GROUP_check(EC_KEY_get0_group(eck), ctx);
+ ok = ok && EC_GROUP_check_named_curve(EC_KEY_get0_group(eck),
+ (flags & EC_FLAG_CHECK_NAMED_GROUP_NIST) != 0, ctx);
}
if ((selection & OSSL_KEYMGMT_SELECT_PUBLIC_KEY) != 0) {
@@ -1217,6 +1214,10 @@ static int ec_gen_assign_group(EC_KEY *e
ERR_raise(ERR_LIB_PROV, PROV_R_NO_PARAMETERS_SET);
return 0;
}
+ if (EC_GROUP_get_curve_name(group) == NID_undef) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_CURVE);
+ return 0;
+ }
return EC_KEY_set_group(ec, group) > 0;
}
+
ret->version = priv_key->version;
diff -up openssl-3.0.1/providers/common/securitycheck.c.disable_explicit_ec openssl-3.0.1/providers/common/securitycheck.c
--- openssl-3.0.1/providers/common/securitycheck.c.disable_explicit_ec 2022-02-25 11:44:19.554673396 +0100
+++ openssl-3.0.1/providers/common/securitycheck.c 2022-02-25 12:16:38.168610089 +0100
@@ -93,22 +93,22 @@ int ossl_rsa_check_key(OSSL_LIB_CTX *ctx
int ossl_ec_check_key(OSSL_LIB_CTX *ctx, const EC_KEY *ec, int protect)
if (priv_key->privateKey) {
diff -up openssl-3.0.1/test/endecode_test.c.disable_explicit_ec openssl-3.0.1/test/endecode_test.c
--- openssl-3.0.1/test/endecode_test.c.disable_explicit_ec 2022-03-21 16:55:46.005558779 +0100
+++ openssl-3.0.1/test/endecode_test.c 2022-03-21 16:56:12.636792762 +0100
@@ -57,7 +57,7 @@ static BN_CTX *bnctx = NULL;
static OSSL_PARAM_BLD *bld_prime_nc = NULL;
static OSSL_PARAM_BLD *bld_prime = NULL;
static OSSL_PARAM *ec_explicit_prime_params_nc = NULL;
-static OSSL_PARAM *ec_explicit_prime_params_explicit = NULL;
+/*static OSSL_PARAM *ec_explicit_prime_params_explicit = NULL;*/
# ifndef OPENSSL_NO_EC2M
static OSSL_PARAM_BLD *bld_tri_nc = NULL;
@@ -990,9 +990,9 @@ IMPLEMENT_TEST_SUITE_LEGACY(EC, "EC")
DOMAIN_KEYS(ECExplicitPrimeNamedCurve);
IMPLEMENT_TEST_SUITE(ECExplicitPrimeNamedCurve, "EC")
IMPLEMENT_TEST_SUITE_LEGACY(ECExplicitPrimeNamedCurve, "EC")
-DOMAIN_KEYS(ECExplicitPrime2G);
-IMPLEMENT_TEST_SUITE(ECExplicitPrime2G, "EC")
-IMPLEMENT_TEST_SUITE_LEGACY(ECExplicitPrime2G, "EC")
+/*DOMAIN_KEYS(ECExplicitPrime2G);*/
+/*IMPLEMENT_TEST_SUITE(ECExplicitPrime2G, "EC")*/
+/*IMPLEMENT_TEST_SUITE_LEGACY(ECExplicitPrime2G, "EC")*/
# ifndef OPENSSL_NO_EC2M
DOMAIN_KEYS(ECExplicitTriNamedCurve);
IMPLEMENT_TEST_SUITE(ECExplicitTriNamedCurve, "EC")
@@ -1318,7 +1318,7 @@ int setup_tests(void)
|| !create_ec_explicit_prime_params_namedcurve(bld_prime_nc)
|| !create_ec_explicit_prime_params(bld_prime)
|| !TEST_ptr(ec_explicit_prime_params_nc = OSSL_PARAM_BLD_to_param(bld_prime_nc))
- || !TEST_ptr(ec_explicit_prime_params_explicit = OSSL_PARAM_BLD_to_param(bld_prime))
+/* || !TEST_ptr(ec_explicit_prime_params_explicit = OSSL_PARAM_BLD_to_param(bld_prime))*/
# ifndef OPENSSL_NO_EC2M
|| !TEST_ptr(bld_tri_nc = OSSL_PARAM_BLD_new())
|| !TEST_ptr(bld_tri = OSSL_PARAM_BLD_new())
@@ -1346,7 +1346,7 @@ int setup_tests(void)
TEST_info("Generating EC keys...");
MAKE_DOMAIN_KEYS(EC, "EC", EC_params);
MAKE_DOMAIN_KEYS(ECExplicitPrimeNamedCurve, "EC", ec_explicit_prime_params_nc);
- MAKE_DOMAIN_KEYS(ECExplicitPrime2G, "EC", ec_explicit_prime_params_explicit);
+/* MAKE_DOMAIN_KEYS(ECExplicitPrime2G, "EC", ec_explicit_prime_params_explicit);*/
# ifndef OPENSSL_NO_EC2M
MAKE_DOMAIN_KEYS(ECExplicitTriNamedCurve, "EC", ec_explicit_tri_params_nc);
MAKE_DOMAIN_KEYS(ECExplicitTri2G, "EC", ec_explicit_tri_params_explicit);
@@ -1389,8 +1389,8 @@ int setup_tests(void)
ADD_TEST_SUITE_LEGACY(EC);
ADD_TEST_SUITE(ECExplicitPrimeNamedCurve);
ADD_TEST_SUITE_LEGACY(ECExplicitPrimeNamedCurve);
- ADD_TEST_SUITE(ECExplicitPrime2G);
- ADD_TEST_SUITE_LEGACY(ECExplicitPrime2G);
+/* ADD_TEST_SUITE(ECExplicitPrime2G);*/
+/* ADD_TEST_SUITE_LEGACY(ECExplicitPrime2G);*/
# ifndef OPENSSL_NO_EC2M
ADD_TEST_SUITE(ECExplicitTriNamedCurve);
ADD_TEST_SUITE_LEGACY(ECExplicitTriNamedCurve);
@@ -1427,7 +1427,7 @@ void cleanup_tests(void)
{
# if !defined(OPENSSL_NO_FIPS_SECURITYCHECKS)
- if (ossl_securitycheck_enabled(ctx)) {
- int nid, strength;
- const char *curve_name;
- const EC_GROUP *group = EC_KEY_get0_group(ec);
+ int nid, strength;
+ const char *curve_name;
+ const EC_GROUP *group = EC_KEY_get0_group(ec);
#ifndef OPENSSL_NO_EC
OSSL_PARAM_free(ec_explicit_prime_params_nc);
- OSSL_PARAM_free(ec_explicit_prime_params_explicit);
+/* OSSL_PARAM_free(ec_explicit_prime_params_explicit);*/
OSSL_PARAM_BLD_free(bld_prime_nc);
OSSL_PARAM_BLD_free(bld_prime);
# ifndef OPENSSL_NO_EC2M
@@ -1449,7 +1449,7 @@ void cleanup_tests(void)
#ifndef OPENSSL_NO_EC
FREE_DOMAIN_KEYS(EC);
FREE_DOMAIN_KEYS(ECExplicitPrimeNamedCurve);
- FREE_DOMAIN_KEYS(ECExplicitPrime2G);
+/* FREE_DOMAIN_KEYS(ECExplicitPrime2G);*/
# ifndef OPENSSL_NO_EC2M
FREE_DOMAIN_KEYS(ECExplicitTriNamedCurve);
FREE_DOMAIN_KEYS(ECExplicitTri2G);
diff -up openssl-3.0.1/test/recipes/30-test_evp_data/evppkey_ecdsa.txt.disable_explicit_ec openssl-3.0.1/test/recipes/30-test_evp_data/evppkey_ecdsa.txt
--- openssl-3.0.1/test/recipes/30-test_evp_data/evppkey_ecdsa.txt.disable_explicit_ec 2022-03-25 11:20:50.920949208 +0100
+++ openssl-3.0.1/test/recipes/30-test_evp_data/evppkey_ecdsa.txt 2022-03-25 11:21:13.177147598 +0100
@@ -121,18 +121,6 @@ AAAA//////////+85vqtpxeehPO5ysL8YyVRAgEB
3ev1gTwRBduzqqlwd54AUSgI+pjttW8zrWNitO8H1sf59MPWOESKxNtZ1+Nl
-----END PRIVATE KEY-----
- if (group == NULL) {
- ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_CURVE, "No group");
- return 0;
- }
- nid = EC_GROUP_get_curve_name(group);
- if (nid == NID_undef) {
- ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_CURVE,
- "Explicit curves are not allowed in fips mode");
- return 0;
- }
+ if (group == NULL) {
+ ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_CURVE, "No group");
+ return 0;
+ }
+ nid = EC_GROUP_get_curve_name(group);
+ if (nid == NID_undef) {
+ ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_CURVE,
+ "Explicit curves are not allowed in this build");
+ return 0;
+ }
+ if (ossl_securitycheck_enabled(ctx)) {
curve_name = EC_curve_nid2nist(nid);
if (curve_name == NULL) {
ERR_raise_data(ERR_LIB_PROV, PROV_R_INVALID_CURVE,
-PrivateKey = EC_EXPLICIT
------BEGIN PRIVATE KEY-----
-MIIBeQIBADCCAQMGByqGSM49AgEwgfcCAQEwLAYHKoZIzj0BAQIhAP////8AAAAB
-AAAAAAAAAAAAAAAA////////////////MFsEIP////8AAAABAAAAAAAAAAAAAAAA
-///////////////8BCBaxjXYqjqT57PrvVV2mIa8ZR0GsMxTsPY7zjw+J9JgSwMV
-AMSdNgiG5wSTamZ44ROdJreBn36QBEEE5JcIvn36opqjEm/k59Al40rBAxWM2TPG
-l0L13Je51zHpfXQ9Z2o7IQicMXP4wSfJ0qCgg2bgydqoxlYrlLGuVQIhAP////8A
-AAAA//////////+85vqtpxeehPO5ysL8YyVRAgEBBG0wawIBAQQgec92jwduadCk
-OjoNRI+YT5Be5TkzZXzYCyTLkMOikDmhRANCAATtECEhQbLEaiUj/Wu0qjcr81lL
-46dx5zYgArz/iaSNJ3W80oO+F7v04jlQ7wxQzg96R0bwKiMeq5CcW9ZFt6xg
------END PRIVATE KEY-----
-
PrivateKey = B-163
-----BEGIN PRIVATE KEY-----
MGMCAQAwEAYHKoZIzj0CAQYFK4EEAA8ETDBKAgEBBBUDnQW0mLiHVha/jqFznX/K

2
ectest.c
View File

@ -2284,7 +2284,7 @@ int setup_tests(void)
return 0;
ADD_TEST(parameter_test);
ADD_TEST(cofactor_range_test);
/*ADD_TEST(cofactor_range_test);*/
ADD_ALL_TESTS(cardinality_test, crv_len);
ADD_TEST(prime_field_tests);
#ifndef OPENSSL_NO_EC2M