Add EVP_PKEY_RSA_PSS ameth. (#86)

* Add EVP_PKEY_RSA_PSS ameth. * Add test to verify SubjectPublicKeyInfo decode.
aws · Feb 8, 2021 · 857dcf9 · 857dcf9
1 parent eec8352
commit 857dcf9
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Showing 6 changed files with 206 additions and 1 deletion.
diff --git a/crypto/evp/evp.c b/crypto/evp/evp.c
@@ -204,6 +204,8 @@ static const EVP_PKEY_ASN1_METHOD *evp_pkey_asn1_find(int nid) {
   switch (nid) {
     case EVP_PKEY_RSA:
       return &rsa_asn1_meth;
+    case EVP_PKEY_RSA_PSS:
+      return &rsa_pss_asn1_meth;
     case EVP_PKEY_EC:
       return &ec_asn1_meth;
     case EVP_PKEY_DSA:
@@ -238,7 +240,7 @@ int EVP_PKEY_assign_RSA(EVP_PKEY *pkey, RSA *key) {
 }
 
 RSA *EVP_PKEY_get0_RSA(const EVP_PKEY *pkey) {
-  if (pkey->type != EVP_PKEY_RSA) {
+  if (pkey->type != EVP_PKEY_RSA && pkey->type != EVP_PKEY_RSA_PSS) {
     OPENSSL_PUT_ERROR(EVP, EVP_R_EXPECTING_AN_RSA_KEY);
     return NULL;
   }

diff --git a/crypto/evp/evp_asn1.c b/crypto/evp/evp_asn1.c
@@ -71,6 +71,7 @@
 
 static const EVP_PKEY_ASN1_METHOD *const kASN1Methods[] = {
     &rsa_asn1_meth,
+    &rsa_pss_asn1_meth,
     &ec_asn1_meth,
     &dsa_asn1_meth,
     &ed25519_asn1_meth,

diff --git a/crypto/evp/evp_extra_test.cc b/crypto/evp/evp_extra_test.cc
@@ -238,6 +238,112 @@ static const uint8_t kExampleRSAKeyPKCS8[] = {
     0x08, 0xf1, 0x2d, 0x86, 0x9d, 0xa5, 0x20, 0x1b, 0xe5, 0xdf,
 };
 
+// kExampleRSAPSSKeyPKCS8 is encoded in a PKCS #8 PrivateKeyInfo.
+static const uint8_t kExampleRSAPSSKeyPKCS8[] = {
+    0x30, 0x82, 0x04, 0xbc, 0x02, 0x01, 0x00, 0x30, 0x0b, 0x06, 0x09, 0x2a,
+    0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0a, 0x04, 0x82, 0x04, 0xa8,
+    0x30, 0x82, 0x04, 0xa4, 0x02, 0x01, 0x00, 0x02, 0x82, 0x01, 0x01, 0x00,
+    0xad, 0x14, 0x61, 0x84, 0xf0, 0x6b, 0xa7, 0x1d, 0x16, 0xca, 0xef, 0xd1,
+    0x3f, 0x31, 0xb5, 0x92, 0xb8, 0xab, 0xa5, 0x03, 0xbc, 0x15, 0x27, 0x2b,
+    0x14, 0xbd, 0xde, 0x7d, 0x9c, 0xdc, 0xd3, 0x03, 0xc9, 0x86, 0x68, 0xb2,
+    0x9c, 0x71, 0xe8, 0xa0, 0x88, 0x8f, 0x7a, 0x6a, 0xee, 0x9b, 0x12, 0x93,
+    0x20, 0x51, 0x09, 0x9f, 0xbc, 0x47, 0xfe, 0xe5, 0x4d, 0x60, 0xf9, 0x74,
+    0x69, 0xed, 0x94, 0xbe, 0xf6, 0x7d, 0xc0, 0x5d, 0x80, 0xbe, 0x7b, 0x26,
+    0x82, 0x3d, 0xa2, 0xf6, 0xc1, 0x0c, 0x51, 0xff, 0xd3, 0xda, 0x66, 0xda,
+    0xd6, 0x1c, 0x83, 0x3e, 0xe9, 0x29, 0x1b, 0x24, 0xdd, 0xc3, 0x20, 0x4d,
+    0x5c, 0x7a, 0x0e, 0xb1, 0x51, 0xb6, 0xf9, 0x6a, 0xe1, 0x31, 0x6d, 0x0d,
+    0x90, 0x6c, 0x4e, 0x27, 0x07, 0x6f, 0xa8, 0xae, 0xe4, 0xfd, 0xf9, 0x8d,
+    0x45, 0x6e, 0x78, 0xa7, 0x97, 0x1d, 0x7f, 0xea, 0x17, 0x04, 0x80, 0x9d,
+    0xdd, 0x97, 0x97, 0x50, 0x6c, 0x0d, 0xfb, 0xf3, 0xbd, 0x3f, 0xc0, 0x14,
+    0x47, 0xeb, 0x30, 0x3c, 0x5e, 0x7f, 0xc5, 0x04, 0xf4, 0x97, 0xa7, 0x08,
+    0x2f, 0xca, 0x75, 0x22, 0x2d, 0xc8, 0x3b, 0x04, 0x1b, 0xb1, 0xb2, 0x1c,
+    0x97, 0x07, 0x20, 0x07, 0xe0, 0x3e, 0x27, 0x13, 0x01, 0x3a, 0xbb, 0x12,
+    0xda, 0xdd, 0xf0, 0x98, 0xef, 0xed, 0xd3, 0x49, 0xd8, 0x25, 0x04, 0x37,
+    0xf4, 0x6b, 0xc5, 0x38, 0x6e, 0xc5, 0x2c, 0xcb, 0x7b, 0xef, 0x56, 0xc6,
+    0xfe, 0x59, 0x17, 0x7c, 0x4f, 0xae, 0x33, 0xd0, 0x4f, 0xa8, 0xe4, 0x64,
+    0xeb, 0x75, 0xc9, 0x3f, 0x91, 0x98, 0xb4, 0x8d, 0x06, 0xf7, 0x27, 0x3c,
+    0x2a, 0x32, 0x5f, 0x7e, 0x33, 0x27, 0x10, 0xb7, 0xf2, 0x36, 0xef, 0x72,
+    0xea, 0x1f, 0xbf, 0x8e, 0x17, 0x94, 0xc6, 0x7a, 0x25, 0xf8, 0xce, 0x19,
+    0x95, 0x5c, 0x81, 0x35, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, 0x82, 0x01,
+    0x01, 0x00, 0x8f, 0x37, 0xec, 0x32, 0x2b, 0x17, 0x89, 0xa3, 0x22, 0x77,
+    0x2e, 0xd6, 0xc1, 0x2a, 0x0b, 0x0b, 0xab, 0xd0, 0x2c, 0xad, 0xd8, 0x76,
+    0xd0, 0x80, 0x6f, 0x9b, 0x65, 0x7e, 0x1f, 0xcd, 0x02, 0xb7, 0x81, 0x8c,
+    0xbd, 0x19, 0xff, 0x26, 0xaa, 0xce, 0x1b, 0xf2, 0x4d, 0xe4, 0x2a, 0x29,
+    0x1b, 0xc7, 0xae, 0xd8, 0x1f, 0xd4, 0x93, 0xe2, 0x27, 0x63, 0xeb, 0x11,
+    0xb1, 0x99, 0xc9, 0x05, 0x95, 0x2e, 0x27, 0x9d, 0x8b, 0x0e, 0x54, 0x38,
+    0x4a, 0x83, 0x65, 0x06, 0x47, 0xd1, 0x53, 0x91, 0x34, 0x51, 0x33, 0x26,
+    0xe8, 0x31, 0x71, 0x37, 0x0a, 0xcb, 0x85, 0xf8, 0x43, 0xc3, 0xcf, 0xd5,
+    0x64, 0xe7, 0x5e, 0xfc, 0x89, 0x27, 0xe5, 0x6c, 0x39, 0x1b, 0x5d, 0xd8,
+    0x9e, 0x5a, 0xb9, 0x05, 0x45, 0xee, 0x39, 0xd3, 0x05, 0x8c, 0x23, 0x64,
+    0x9d, 0x99, 0x6e, 0xb8, 0xa9, 0x12, 0x54, 0x93, 0x4e, 0x82, 0x32, 0x86,
+    0xab, 0xe1, 0xd0, 0x59, 0xe7, 0x90, 0x61, 0x72, 0x74, 0xf6, 0x0b, 0x5f,
+    0xde, 0x64, 0xae, 0x23, 0x0d, 0x03, 0x8a, 0xf1, 0x83, 0xe6, 0x2a, 0x0c,
+    0x69, 0xee, 0x15, 0x6a, 0x23, 0xdc, 0x6c, 0xb4, 0x87, 0x30, 0xde, 0x6c,
+    0xca, 0x7a, 0xb1, 0x02, 0x83, 0x8b, 0x71, 0x96, 0x3f, 0x53, 0x57, 0xc7,
+    0xfe, 0x73, 0xd8, 0x2b, 0xd7, 0x82, 0x18, 0xd2, 0xe4, 0xe7, 0xb6, 0x75,
+    0x9f, 0xef, 0x41, 0xbb, 0xab, 0xad, 0x6e, 0x30, 0x5b, 0xbe, 0x39, 0x49,
+    0x3f, 0x6f, 0xe6, 0xdf, 0xfc, 0xf0, 0x6b, 0xac, 0x54, 0x63, 0x77, 0x28,
+    0x00, 0x03, 0xe4, 0x44, 0x7a, 0xc3, 0xdd, 0xab, 0x63, 0xe6, 0xcf, 0x30,
+    0xdf, 0xa5, 0xe0, 0xb2, 0xe7, 0x5f, 0x35, 0x51, 0x5d, 0xc9, 0x99, 0xb9,
+    0x6a, 0xab, 0xbc, 0x89, 0xaf, 0x3b, 0xbc, 0x02, 0x7a, 0xe1, 0x0c, 0xe7,
+    0x06, 0xf4, 0x2d, 0xb5, 0x12, 0x01, 0x02, 0x81, 0x81, 0x00, 0xe5, 0x29,
+    0x07, 0x4d, 0xbb, 0x17, 0x61, 0x50, 0xb9, 0xf1, 0x15, 0x23, 0x57, 0x93,
+    0x6b, 0xaf, 0x9c, 0xb5, 0xac, 0x70, 0x0a, 0x12, 0x01, 0x97, 0x2b, 0xb4,
+    0xd5, 0xc7, 0x18, 0xac, 0x01, 0x98, 0xf6, 0xbd, 0xbf, 0xd7, 0xb9, 0x88,
+    0x12, 0x81, 0x5a, 0x32, 0xb1, 0x9b, 0xde, 0x15, 0xe5, 0xea, 0x6e, 0x37,
+    0x08, 0x50, 0x26, 0xa0, 0x3e, 0x9a, 0x56, 0xe5, 0x50, 0xa0, 0x8a, 0x81,
+    0xfe, 0x87, 0xfe, 0x7d, 0x93, 0x60, 0x92, 0x25, 0xed, 0xee, 0x70, 0x4e,
+    0x49, 0xaa, 0xe1, 0xb0, 0xf9, 0x6e, 0x64, 0x76, 0x2e, 0x5b, 0x85, 0x29,
+    0x33, 0xfe, 0x61, 0x90, 0xa9, 0x24, 0x16, 0x7c, 0x4b, 0x23, 0x45, 0xbc,
+    0x1c, 0xa4, 0x28, 0xc3, 0x01, 0x47, 0x91, 0x34, 0x2b, 0x82, 0xdf, 0x94,
+    0x1d, 0xbb, 0xc6, 0x1b, 0xe9, 0x2a, 0x95, 0x12, 0xd3, 0x0e, 0x86, 0xe0,
+    0xa8, 0x3b, 0xb4, 0x58, 0x90, 0x75, 0x02, 0x81, 0x81, 0x00, 0xc1, 0x59,
+    0xdf, 0x24, 0xee, 0x30, 0x26, 0x3d, 0x6f, 0xd7, 0x36, 0xb4, 0x25, 0xb5,
+    0x7f, 0x8b, 0xf3, 0x8f, 0x0a, 0x7c, 0x08, 0x31, 0xe9, 0x45, 0x5d, 0xec,
+    0x53, 0x29, 0xec, 0xad, 0xec, 0x9b, 0xb0, 0x5b, 0x53, 0xc4, 0xb3, 0x85,
+    0x05, 0x26, 0x51, 0xc1, 0x62, 0xbb, 0xdb, 0x7a, 0x52, 0xbb, 0x0a, 0x77,
+    0xf0, 0x26, 0x01, 0x1f, 0x6b, 0x2d, 0x04, 0xd9, 0x0c, 0xe8, 0x2f, 0x63,
+    0xde, 0x22, 0x3a, 0xdb, 0x55, 0x75, 0xbd, 0x44, 0xc2, 0xc1, 0x57, 0x02,
+    0xbc, 0x92, 0x03, 0x55, 0xf3, 0x6f, 0x3e, 0xf8, 0x02, 0x5c, 0x46, 0x30,
+    0xfd, 0x95, 0x5b, 0x48, 0x1f, 0x26, 0xf3, 0x32, 0xaf, 0x8d, 0x25, 0x1c,
+    0x7e, 0xb2, 0xee, 0x33, 0x10, 0xf9, 0x4e, 0xed, 0xd4, 0x60, 0xdf, 0x86,
+    0x8f, 0x43, 0x26, 0x24, 0x5a, 0xb1, 0x23, 0xb4, 0xf2, 0xca, 0x40, 0x98,
+    0xa7, 0x59, 0x18, 0x06, 0x15, 0xc1, 0x02, 0x81, 0x80, 0x4e, 0xc8, 0x7b,
+    0x35, 0x53, 0x03, 0xe7, 0xb5, 0xfc, 0x27, 0x10, 0xf0, 0x54, 0x94, 0x5f,
+    0x2a, 0x41, 0xc3, 0x07, 0xa4, 0x81, 0x21, 0xcd, 0xa0, 0x2e, 0x2b, 0x7e,
+    0x6f, 0x73, 0x60, 0xf7, 0x2f, 0xa2, 0x6c, 0x7b, 0xbe, 0xeb, 0x8f, 0x07,
+    0x65, 0xa7, 0x1f, 0xd4, 0x85, 0xd4, 0xa5, 0x4c, 0xa4, 0xfa, 0xfd, 0x3a,
+    0x83, 0x6b, 0xb4, 0x1d, 0xb1, 0xab, 0xfc, 0x2c, 0x6a, 0xf5, 0x13, 0x59,
+    0xf1, 0x61, 0x21, 0xc5, 0x00, 0x27, 0x5e, 0x98, 0xdd, 0x27, 0x89, 0x12,
+    0xb4, 0x87, 0xe0, 0xf2, 0xef, 0xeb, 0xe3, 0xe1, 0x6e, 0x1f, 0x6a, 0x99,
+    0xf0, 0x73, 0x94, 0x6b, 0x41, 0xf7, 0xe5, 0x05, 0x63, 0xfb, 0xfe, 0x7f,
+    0x0e, 0x44, 0xe1, 0x3d, 0xd8, 0x5f, 0xe8, 0x42, 0xa9, 0x3c, 0xba, 0x4c,
+    0x3a, 0x99, 0x12, 0x51, 0x68, 0x0d, 0x56, 0x2a, 0x6f, 0x4d, 0x19, 0x81,
+    0x5c, 0xfd, 0x54, 0x91, 0x5d, 0x02, 0x81, 0x81, 0x00, 0x85, 0x1e, 0x5c,
+    0x1c, 0xb0, 0x04, 0xe4, 0x7f, 0x0d, 0xfe, 0x4d, 0x42, 0x70, 0x67, 0xea,
+    0x5d, 0xaf, 0x9d, 0x7e, 0xe9, 0x70, 0x36, 0xf4, 0xd4, 0xf6, 0x5a, 0x5b,
+    0xd3, 0x94, 0x89, 0x16, 0x4b, 0x06, 0x7b, 0x8a, 0x4b, 0xf6, 0x11, 0x12,
+    0x3f, 0x94, 0xb0, 0x21, 0x4b, 0x17, 0x4b, 0xbb, 0xa3, 0xdd, 0x0c, 0x40,
+    0x81, 0xd9, 0xea, 0x08, 0xbf, 0x21, 0x04, 0x52, 0xf7, 0x94, 0x91, 0x1c,
+    0x81, 0xd2, 0xa5, 0xe9, 0xcb, 0xbb, 0x38, 0x99, 0x21, 0xc5, 0xc7, 0x33,
+    0x8f, 0x0f, 0xce, 0xe0, 0x60, 0x6a, 0x29, 0x14, 0x6e, 0xf5, 0x40, 0x8b,
+    0x86, 0x86, 0x27, 0x3c, 0x93, 0x73, 0x83, 0x25, 0x0c, 0x77, 0x4d, 0x8c,
+    0x09, 0xa3, 0x27, 0xf3, 0x7a, 0xc2, 0x15, 0xca, 0x4f, 0xbb, 0xf5, 0x87,
+    0xb3, 0x02, 0x92, 0xab, 0x02, 0x24, 0x84, 0x53, 0x58, 0x5e, 0x6a, 0xfb,
+    0x64, 0xc2, 0xbe, 0x85, 0xc1, 0x02, 0x81, 0x80, 0x15, 0x7a, 0xc3, 0x94,
+    0x17, 0x82, 0xfc, 0xf8, 0x36, 0x96, 0xd1, 0x5a, 0x02, 0x6b, 0x85, 0xce,
+    0xf2, 0x31, 0xf3, 0xdd, 0xd3, 0x04, 0x7e, 0xaf, 0xec, 0xf9, 0x3c, 0xb9,
+    0x62, 0x3d, 0xfe, 0x84, 0xde, 0x2c, 0xc9, 0xb5, 0xa9, 0xf4, 0xd5, 0x22,
+    0x3b, 0x8f, 0x85, 0xb2, 0xe7, 0x4a, 0x07, 0x02, 0x83, 0xd4, 0x52, 0x02,
+    0x79, 0x14, 0x5a, 0xbc, 0x9b, 0x90, 0x04, 0x07, 0x84, 0xf2, 0xb5, 0x2d,
+    0xee, 0x4e, 0x26, 0xcd, 0x6d, 0xa7, 0x61, 0x59, 0xfa, 0x62, 0xbd, 0x47,
+    0x1a, 0x17, 0x82, 0x98, 0x22, 0x85, 0x5f, 0x0b, 0x0b, 0x29, 0x05, 0xfd,
+    0x56, 0x8a, 0xb2, 0x6e, 0xb1, 0x90, 0x82, 0x03, 0x15, 0xf2, 0x83, 0x5d,
+    0xb1, 0xc1, 0xfb, 0xa3, 0x07, 0xea, 0xd7, 0x6a, 0xba, 0x12, 0xa4, 0xbf,
+    0x8c, 0xf2, 0xc0, 0x72, 0x37, 0x7d, 0x25, 0xfa, 0xf3, 0x91, 0x7f, 0x22,
+    0x7c, 0x50, 0x31, 0xec,
+};
+
 // kExampleECKeyDER is a sample EC private key encoded as an ECPrivateKey
 // structure.
 static const uint8_t kExampleECKeyDER[] = {
@@ -463,6 +569,8 @@ TEST(EVPExtraTest, d2i_AutoPrivateKey) {
                       EVP_PKEY_RSA);
   TestValidPrivateKey(kExampleRSAKeyPKCS8, sizeof(kExampleRSAKeyPKCS8),
                       EVP_PKEY_RSA);
+  TestValidPrivateKey(kExampleRSAPSSKeyPKCS8, sizeof(kExampleRSAPSSKeyPKCS8),
+                      EVP_PKEY_RSA_PSS);
   TestValidPrivateKey(kExampleECKeyDER, sizeof(kExampleECKeyDER), EVP_PKEY_EC);
   TestValidPrivateKey(kExampleECKeyPKCS8, sizeof(kExampleECKeyPKCS8),
                       EVP_PKEY_EC);
@@ -521,6 +629,8 @@ TEST(EVPExtraTest, d2i_PrivateKey) {
                               sizeof(kExampleDSAKeyDER)));
   EXPECT_TRUE(ParsePrivateKey(EVP_PKEY_RSA, kExampleRSAKeyPKCS8,
                               sizeof(kExampleRSAKeyPKCS8)));
+  EXPECT_TRUE(ParsePrivateKey(EVP_PKEY_RSA_PSS, kExampleRSAPSSKeyPKCS8,
+                              sizeof(kExampleRSAPSSKeyPKCS8)));
   EXPECT_TRUE(
       ParsePrivateKey(EVP_PKEY_EC, kExampleECKeyDER, sizeof(kExampleECKeyDER)));
 
@@ -538,6 +648,8 @@ TEST(EVPExtraTest, d2i_PrivateKey) {
   // Test that an RSA key may not be imported as an EC key.
   EXPECT_FALSE(ParsePrivateKey(EVP_PKEY_EC, kExampleRSAKeyPKCS8,
                                sizeof(kExampleRSAKeyPKCS8)));
+  EXPECT_FALSE(ParsePrivateKey(EVP_PKEY_EC, kExampleRSAPSSKeyPKCS8,
+                               sizeof(kExampleRSAPSSKeyPKCS8)));
   ERR_clear_error();
 }
 

diff --git a/crypto/evp/internal.h b/crypto/evp/internal.h
@@ -253,6 +253,7 @@ typedef struct {
 extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meth;
 extern const EVP_PKEY_ASN1_METHOD ec_asn1_meth;
 extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meth;
+extern const EVP_PKEY_ASN1_METHOD rsa_pss_asn1_meth;
 extern const EVP_PKEY_ASN1_METHOD ed25519_asn1_meth;
 extern const EVP_PKEY_ASN1_METHOD x25519_asn1_meth;
 

diff --git a/crypto/evp/p_rsa_asn1.c b/crypto/evp/p_rsa_asn1.c
@@ -108,6 +108,19 @@ static int rsa_pub_decode(EVP_PKEY *out, CBS *params, CBS *key) {
   return 1;
 }
 
+static int rsa_pss_pub_decode(EVP_PKEY *out, CBS *params, CBS *key) {
+  // TODO(shang): add pss paramters decode.
+  RSA *rsa = RSA_parse_public_key(key);
+  if (rsa == NULL || CBS_len(key) != 0) {
+    OPENSSL_PUT_ERROR(EVP, EVP_R_DECODE_ERROR);
+    RSA_free(rsa);
+    return 0;
+  }
+
+  EVP_PKEY_assign(out, EVP_PKEY_RSA_PSS, rsa);
+  return 1;
+}
+
 static int rsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b) {
   return BN_cmp(b->pkey.rsa->n, a->pkey.rsa->n) == 0 &&
          BN_cmp(b->pkey.rsa->e, a->pkey.rsa->e) == 0;
@@ -152,6 +165,19 @@ static int rsa_priv_decode(EVP_PKEY *out, CBS *params, CBS *key) {
   return 1;
 }
 
+static int rsa_pss_priv_decode(EVP_PKEY *out, CBS *params, CBS *key) {
+  // TODO(shang): add pss paramters decode.
+  RSA *rsa = RSA_parse_private_key(key);
+  if (rsa == NULL || CBS_len(key) != 0) {
+    OPENSSL_PUT_ERROR(EVP, EVP_R_DECODE_ERROR);
+    RSA_free(rsa);
+    return 0;
+  }
+
+  EVP_PKEY_assign(out, EVP_PKEY_RSA_PSS, rsa);
+  return 1;
+}
+
 static int rsa_opaque(const EVP_PKEY *pkey) {
   return RSA_is_opaque(pkey->pkey.rsa);
 }
@@ -192,3 +218,30 @@ const EVP_PKEY_ASN1_METHOD rsa_asn1_meth = {
 
   int_rsa_free,
 };
+
+const EVP_PKEY_ASN1_METHOD rsa_pss_asn1_meth = {
+  EVP_PKEY_RSA_PSS,
+  // 1.2.840.113549.1.1.10
+  {0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0a}, 9,
+
+  rsa_pss_pub_decode,
+  NULL /* pub_encode */,
+  rsa_pub_cmp,
+
+  rsa_pss_priv_decode,
+  NULL /* priv_encode */,
+
+  NULL /* set_priv_raw */,
+  NULL /* set_pub_raw */,
+  NULL /* get_priv_raw */,
+  NULL /* get_pub_raw */,
+
+  rsa_opaque,
+
+  int_rsa_size,
+  rsa_bits,
+
+  0,0,0,
+
+  int_rsa_free,
+};
diff --git a/crypto/x509/x509_test.cc b/crypto/x509/x509_test.cc
@@ -201,6 +201,31 @@ Z0IL+OQFz6+LcTHxD27JJCebrATXZA0wThGTQDm7crL+a+SujBY=
 -----END CERTIFICATE-----
 )";
 
+// kExampleRsassaPssCert is an example RSA-PSS self-signed certificate,
+// signed with sha256. The Public Key Algorithm of 'kExamplePSSCert' is 'rsaEncryption'.
+// But the Public Key Algorithm of'kExampleRsassaPssCert' is 'rsassaPss'.
+static const char kExampleRsassaPssCert[] = R"(
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+)";
+
 // kBadPSSCertPEM is a self-signed RSA-PSS certificate with bad parameters.
 static const char kBadPSSCertPEM[] = R"(
 -----BEGIN CERTIFICATE-----
@@ -1452,6 +1477,17 @@ TEST(X509Test, TestPSS) {
   ASSERT_TRUE(X509_verify(cert.get(), pkey.get()));
 }
 
+TEST(X509Test, TestRsaSsaPss) {
+  bssl::UniquePtr<X509> cert(CertFromPEM(kExampleRsassaPssCert));
+  ASSERT_TRUE(cert);
+
+  bssl::UniquePtr<EVP_PKEY> pkey(X509_get_pubkey(cert.get()));
+  ASSERT_TRUE(pkey);
+
+  // TODO(shang): reenable this verification when EVP_PKEY_RSA_PSS pmeth is implemented.
+  // ASSERT_TRUE(X509_verify(cert.get(), pkey.get()));
+}
+
 TEST(X509Test, TestPSSBadParameters) {
   bssl::UniquePtr<X509> cert(CertFromPEM(kBadPSSCertPEM));
   ASSERT_TRUE(cert);