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Revert "Check AlgorithmIdentifier parameters for RSA and ECDSA signatures."

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This reverts commit 9dd9d4fc24.

BUG=b/167375496,342

Original change's description:
> Check AlgorithmIdentifier parameters for RSA and ECDSA signatures.
>
> This aligns with the Chromium certificate verifier, which allows NULL or
> empty for RSA and requires empty for ECDSA.
>
> Bug: 342
> Change-Id: I34acf68f63b4d133dd47b73144b2f27224c499ee
> Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/41804
> Reviewed-by: Adam Langley <agl@google.com>
> Commit-Queue: David Benjamin <davidben@google.com>

TBR=agl@google.com,davidben@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: If8f136a09fea68e64c9f4f9ffae88b6209ede124
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/42804
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
chromium-5359
Adam Langley 5 years ago committed by CQ bot account: commit-bot@chromium.org
parent bc24805109
commit 6a263ce483
2 changed files with 0 additions and 124 deletions
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  1. 8
      crypto/x509/algorithm.c
  2. 116
      crypto/x509/x509_test.cc

8
crypto/x509/algorithm.c
Unescape View File

@ -142,14 +142,6 @@ int x509_digest_verify_init(EVP_MD_CTX *ctx, X509_ALGOR *sigalg,
return 0; return 0;
} }
/* RSA signature algorithms include an explicit NULL parameter but we also
* accept omitted values for compatibility. Other algorithms must omit it. */
if (sigalg->parameter != NULL && (pkey_nid != EVP_PKEY_RSA ||
sigalg->parameter->type != V_ASN1_NULL)) {
OPENSSL_PUT_ERROR(X509, X509_R_INVALID_PARAMETER);
return 0;
}
/* Otherwise, initialize with the digest from the OID. */ /* Otherwise, initialize with the digest from the OID. */
const EVP_MD *digest = EVP_get_digestbynid(digest_nid); const EVP_MD *digest = EVP_get_digestbynid(digest_nid);
if (digest == NULL) { if (digest == NULL) {

116
crypto/x509/x509_test.cc
Unescape View File

@ -233,13 +233,6 @@ static const char kRSAKey[] =
"moZWgjHvB2W9Ckn7sDqsPB+U2tyX0joDdQEyuiMECDY8oQ==\n" "moZWgjHvB2W9Ckn7sDqsPB+U2tyX0joDdQEyuiMECDY8oQ==\n"
"-----END RSA PRIVATE KEY-----\n"; "-----END RSA PRIVATE KEY-----\n";
static const char kP256Key[] =
"-----BEGIN PRIVATE KEY-----\n"
"MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgBw8IcnrUoEqc3VnJ\n"
"TYlodwi1b8ldMHcO6NHJzgqLtGqhRANCAATmK2niv2Wfl74vHg2UikzVl2u3qR4N\n"
"Rvvdqakendy6WgHn1peoChj5w8SjHlbifINI2xYaHPUdfvGULUvPciLB\n"
"-----END PRIVATE KEY-----\n";
// kCRLTestRoot is a test root certificate. It has private key: // kCRLTestRoot is a test root certificate. It has private key:
// //
// -----BEGIN RSA PRIVATE KEY----- // -----BEGIN RSA PRIVATE KEY-----
@ -2452,112 +2445,3 @@ TEST(X509Test, InvalidVersion) {
EXPECT_FALSE(CertFromPEM(kV1WithIssuerUniqueIDPEM)); EXPECT_FALSE(CertFromPEM(kV1WithIssuerUniqueIDPEM));
EXPECT_FALSE(CertFromPEM(kV1WithSubjectUniqueIDPEM)); EXPECT_FALSE(CertFromPEM(kV1WithSubjectUniqueIDPEM));
} }
// The following strings are test certificates signed by kP256Key and kRSAKey,
// with missing, NULL, or invalid algorithm parameters.
static const char kP256NoParam[] =
"-----BEGIN CERTIFICATE-----\n"
"MIIBIDCBxqADAgECAgIE0jAKBggqhkjOPQQDAjAPMQ0wCwYDVQQDEwRUZXN0MCAX\n"
"DTAwMDEwMTAwMDAwMFoYDzIxMDAwMTAxMDAwMDAwWjAPMQ0wCwYDVQQDEwRUZXN0\n"
"MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE5itp4r9ln5e+Lx4NlIpM1Zdrt6ke\n"
"DUb73ampHp3culoB59aXqAoY+cPEox5W4nyDSNsWGhz1HX7xlC1Lz3IiwaMQMA4w\n"
"DAYDVR0TBAUwAwEB/zAKBggqhkjOPQQDAgNJADBGAiEAqdIiF+bN9Cl44oUeICpy\n"
"aXd7HqhpVUaglYKw9ChmNUACIQCpMdL0fNkFNDbRww9dSl/y7kBdk/tp16HiqeSy\n"
"gGzFYg==\n"
"-----END CERTIFICATE-----\n";
static const char kP256NullParam[] =
"-----BEGIN CERTIFICATE-----\n"
"MIIBJDCByKADAgECAgIE0jAMBggqhkjOPQQDAgUAMA8xDTALBgNVBAMTBFRlc3Qw\n"
"IBcNMDAwMTAxMDAwMDAwWhgPMjEwMDAxMDEwMDAwMDBaMA8xDTALBgNVBAMTBFRl\n"
"c3QwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAATmK2niv2Wfl74vHg2UikzVl2u3\n"
"qR4NRvvdqakendy6WgHn1peoChj5w8SjHlbifINI2xYaHPUdfvGULUvPciLBoxAw\n"
"DjAMBgNVHRMEBTADAQH/MAwGCCqGSM49BAMCBQADSQAwRgIhAKILHmyo+F3Cn/VX\n"
"UUeSXOQQKX5aLzsQitwwmNF3ZgH3AiEAsYHcrVj/ftmoQIORARkQ/+PrqntXev8r\n"
"t6uPxHrmpUY=\n"
"-----END CERTIFICATE-----\n";
static const char kP256InvalidParam[] =
"-----BEGIN CERTIFICATE-----\n"
"MIIBMTCBz6ADAgECAgIE0jATBggqhkjOPQQDAgQHZ2FyYmFnZTAPMQ0wCwYDVQQD\n"
"EwRUZXN0MCAXDTAwMDEwMTAwMDAwMFoYDzIxMDAwMTAxMDAwMDAwWjAPMQ0wCwYD\n"
"VQQDEwRUZXN0MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE5itp4r9ln5e+Lx4N\n"
"lIpM1Zdrt6keDUb73ampHp3culoB59aXqAoY+cPEox5W4nyDSNsWGhz1HX7xlC1L\n"
"z3IiwaMQMA4wDAYDVR0TBAUwAwEB/zATBggqhkjOPQQDAgQHZ2FyYmFnZQNIADBF\n"
"AiAglpDf/YhN89LeJ2WAs/F0SJIrsuhS4uoInIz6WXUiuQIhAIu5Pwhp5E3Pbo8y\n"
"fLULTZnynuQUULQkRcF7S7T2WpIL\n"
"-----END CERTIFICATE-----\n";
static const char kRSANoParam[] =
"-----BEGIN CERTIFICATE-----\n"
"MIIBWzCBx6ADAgECAgIE0jALBgkqhkiG9w0BAQswDzENMAsGA1UEAxMEVGVzdDAg\n"
"Fw0wMDAxMDEwMDAwMDBaGA8yMTAwMDEwMTAwMDAwMFowDzENMAsGA1UEAxMEVGVz\n"
"dDBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABOYraeK/ZZ+Xvi8eDZSKTNWXa7ep\n"
"Hg1G+92pqR6d3LpaAefWl6gKGPnDxKMeVuJ8g0jbFhoc9R1+8ZQtS89yIsGjEDAO\n"
"MAwGA1UdEwQFMAMBAf8wCwYJKoZIhvcNAQELA4GBAC1f8W3W0Ao7CPfIBQYDSbPh\n"
"brZpbxdBU5x27JOS7iSa+Lc9pEH5VCX9vIypHVHXLPEfZ38yIt11eiyrmZB6w62N\n"
"l9kIeZ6FVPmC30d3sXx70Jjs+ZX9yt7kD1gLyNAQQfeYfa4rORAZT1n2YitD74NY\n"
"TWUH2ieFP3l+ecj1SeQR\n"
"-----END CERTIFICATE-----\n";
static const char kRSANullParam[] =
"-----BEGIN CERTIFICATE-----\n"
"MIIBXzCByaADAgECAgIE0jANBgkqhkiG9w0BAQsFADAPMQ0wCwYDVQQDEwRUZXN0\n"
"MCAXDTAwMDEwMTAwMDAwMFoYDzIxMDAwMTAxMDAwMDAwWjAPMQ0wCwYDVQQDEwRU\n"
"ZXN0MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE5itp4r9ln5e+Lx4NlIpM1Zdr\n"
"t6keDUb73ampHp3culoB59aXqAoY+cPEox5W4nyDSNsWGhz1HX7xlC1Lz3IiwaMQ\n"
"MA4wDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQsFAAOBgQAzVcfIv+Rq1KrMXqIL\n"
"fPq/cWZjgqFZA1RGaGElNaqp+rkJfamq5tDGzckWpebrK+jjRN7yIlcWDtPpy3Gy\n"
"seZfvtBDR0TwJm0S/pQl8prKB4wgALcwe3bmi56Rq85nzY5ZLNcP16LQxL+jAAua\n"
"SwmQUz4bRpckRBj+sIyp1We+pg==\n"
"-----END CERTIFICATE-----\n";
static const char kRSAInvalidParam[] =
"-----BEGIN CERTIFICATE-----\n"
"MIIBbTCB0KADAgECAgIE0jAUBgkqhkiG9w0BAQsEB2dhcmJhZ2UwDzENMAsGA1UE\n"
"AxMEVGVzdDAgFw0wMDAxMDEwMDAwMDBaGA8yMTAwMDEwMTAwMDAwMFowDzENMAsG\n"
"A1UEAxMEVGVzdDBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABOYraeK/ZZ+Xvi8e\n"
"DZSKTNWXa7epHg1G+92pqR6d3LpaAefWl6gKGPnDxKMeVuJ8g0jbFhoc9R1+8ZQt\n"
"S89yIsGjEDAOMAwGA1UdEwQFMAMBAf8wFAYJKoZIhvcNAQELBAdnYXJiYWdlA4GB\n"
"AHTJ6cWWjCNrZhqiWWVI3jdK+h5xpRG8jGMXxR4JnjtoYRRusJLOXhmapwCB6fA0\n"
"4vc+66O27v36yDmQX+tIc/hDrTpKNJptU8q3n2VagREvoHhkOTYkcCeS8vmnMtn8\n"
"5OMNZ/ajVwOssw61GcAlScRqEHkZFBoGp7e+QpgB2tf9\n"
"-----END CERTIFICATE-----\n";
TEST(X509Test, AlgorithmParameters) {
// P-256 requires the parameter be omitted.
bssl::UniquePtr<EVP_PKEY> key = PrivateKeyFromPEM(kP256Key);
ASSERT_TRUE(key);
bssl::UniquePtr<X509> cert = CertFromPEM(kP256NoParam);
ASSERT_TRUE(cert);
EXPECT_TRUE(X509_verify(cert.get(), key.get()));
cert = CertFromPEM(kP256NullParam);
ASSERT_TRUE(cert);
EXPECT_FALSE(X509_verify(cert.get(), key.get()));
uint32_t err = ERR_get_error();
EXPECT_EQ(ERR_LIB_X509, ERR_GET_LIB(err));
EXPECT_EQ(X509_R_INVALID_PARAMETER, ERR_GET_REASON(err));
cert = CertFromPEM(kP256InvalidParam);
ASSERT_TRUE(cert);
EXPECT_FALSE(X509_verify(cert.get(), key.get()));
err = ERR_get_error();
EXPECT_EQ(ERR_LIB_X509, ERR_GET_LIB(err));
EXPECT_EQ(X509_R_INVALID_PARAMETER, ERR_GET_REASON(err));
// RSA parameters should be NULL, but we accept omitted ones.
key = PrivateKeyFromPEM(kRSAKey);
ASSERT_TRUE(key);
cert = CertFromPEM(kRSANoParam);
ASSERT_TRUE(cert);
EXPECT_TRUE(X509_verify(cert.get(), key.get()));
cert = CertFromPEM(kRSANullParam);
ASSERT_TRUE(cert);
EXPECT_TRUE(X509_verify(cert.get(), key.get()));
cert = CertFromPEM(kRSAInvalidParam);
ASSERT_TRUE(cert);
EXPECT_FALSE(X509_verify(cert.get(), key.get()));
err = ERR_get_error();
EXPECT_EQ(ERR_LIB_X509, ERR_GET_LIB(err));
EXPECT_EQ(X509_R_INVALID_PARAMETER, ERR_GET_REASON(err));
}

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