diff --git a/dlls/bcrypt/bcrypt_main.c b/dlls/bcrypt/bcrypt_main.c
index 86073bbab03..38463416447 100644
--- a/dlls/bcrypt/bcrypt_main.c
+++ b/dlls/bcrypt/bcrypt_main.c
@@ -193,6 +193,7 @@ NTSTATUS WINAPI BCryptOpenAlgorithmProvider( BCRYPT_ALG_HANDLE *handle, LPCWSTR
     else if (!strcmpW( id, BCRYPT_MD5_ALGORITHM )) alg_id = ALG_ID_MD5;
     else if (!strcmpW( id, BCRYPT_RNG_ALGORITHM )) alg_id = ALG_ID_RNG;
     else if (!strcmpW( id, BCRYPT_RSA_ALGORITHM )) alg_id = ALG_ID_RSA;
+    else if (!strcmpW( id, BCRYPT_RSA_SIGN_ALGORITHM )) alg_id = ALG_ID_RSA;
     else if (!strcmpW( id, BCRYPT_SHA1_ALGORITHM )) alg_id = ALG_ID_SHA1;
     else if (!strcmpW( id, BCRYPT_SHA256_ALGORITHM )) alg_id = ALG_ID_SHA256;
     else if (!strcmpW( id, BCRYPT_SHA384_ALGORITHM )) alg_id = ALG_ID_SHA384;
diff --git a/dlls/bcrypt/tests/bcrypt.c b/dlls/bcrypt/tests/bcrypt.c
index 8e57d53e21f..11e274bc5f9 100644
--- a/dlls/bcrypt/tests/bcrypt.c
+++ b/dlls/bcrypt/tests/bcrypt.c
@@ -1808,6 +1808,52 @@ static void test_RSA(void)
     ok(!ret, "pBCryptCloseAlgorithmProvider failed: %08x\n", ret);
 }
 
+static void test_RSA_SIGN(void)
+{
+    BCRYPT_PKCS1_PADDING_INFO pad;
+    BCRYPT_ALG_HANDLE alg = NULL;
+    BCRYPT_KEY_HANDLE key = NULL;
+    NTSTATUS ret;
+
+    ret = pBCryptOpenAlgorithmProvider(&alg, BCRYPT_RSA_SIGN_ALGORITHM, NULL, 0);
+    if (ret)
+    {
+        win_skip("Failed to open RSA_SIGN provider: %08x, skipping test\n", ret);
+        return;
+    }
+
+    ret = pBCryptImportKeyPair(alg, NULL, BCRYPT_RSAPUBLIC_BLOB, &key, rsaPublicBlob, sizeof(rsaPublicBlob), 0);
+    ok(!ret, "pBCryptImportKeyPair failed: %08x\n", ret);
+
+    pad.pszAlgId = BCRYPT_SHA1_ALGORITHM;
+    ret = pBCryptVerifySignature(key, &pad, rsaHash, sizeof(rsaHash), rsaSignature, sizeof(rsaSignature), BCRYPT_PAD_PKCS1);
+    ok(!ret, "pBCryptVerifySignature failed: %08x\n", ret);
+
+    ret = pBCryptVerifySignature(key, NULL, rsaHash, sizeof(rsaHash), rsaSignature, sizeof(rsaSignature), BCRYPT_PAD_PKCS1);
+    ok(ret == STATUS_INVALID_PARAMETER, "Expected STATUS_INVALID_PARAMETER, got %08x\n", ret);
+
+    pad.pszAlgId = BCRYPT_SHA1_ALGORITHM;
+    ret = pBCryptVerifySignature(key, &pad, rsaHash, sizeof(rsaHash), rsaSignature, sizeof(rsaSignature), 0);
+    ok(ret == STATUS_INVALID_PARAMETER, "Expected STATUS_INVALID_PARAMETER, got %08x\n", ret);
+
+    ret = pBCryptVerifySignature(key, NULL, rsaHash, sizeof(rsaHash), rsaSignature, sizeof(rsaSignature), 0);
+    ok(ret == STATUS_INVALID_PARAMETER, "Expected STATUS_INVALID_PARAMETER, got %08x\n", ret);
+
+    pad.pszAlgId = BCRYPT_AES_ALGORITHM;
+    ret = pBCryptVerifySignature(key, &pad, rsaHash, sizeof(rsaHash), rsaSignature, sizeof(rsaSignature), BCRYPT_PAD_PKCS1);
+    ok(ret == STATUS_NOT_SUPPORTED, "Expected STATUS_NOT_SUPPORTED, got %08x\n", ret);
+
+    pad.pszAlgId = NULL;
+    ret = pBCryptVerifySignature(key, &pad, rsaHash, sizeof(rsaHash), rsaSignature, sizeof(rsaSignature), BCRYPT_PAD_PKCS1);
+    ok(ret == STATUS_INVALID_SIGNATURE, "Expected STATUS_INVALID_SIGNATURE, got %08x\n", ret);
+
+    ret = pBCryptDestroyKey(key);
+    ok(!ret, "pBCryptDestroyKey failed: %08x\n", ret);
+
+    ret = pBCryptCloseAlgorithmProvider(alg, 0);
+    ok(!ret, "pBCryptCloseAlgorithmProvider failed: %08x\n", ret);
+}
+
 static BYTE eccprivkey[] =
 {
     0x45, 0x43, 0x4b, 0x32, 0x20, 0x00, 0x00, 0x00, 0xfb, 0xbd, 0x3d, 0x20, 0x1b, 0x6d, 0x66, 0xb3,
@@ -1963,6 +2009,7 @@ START_TEST(bcrypt)
     test_key_import_export();
     test_ECDSA();
     test_RSA();
+    test_RSA_SIGN();
     test_ECDH();
     test_BCryptEnumContextFunctions();
 
diff --git a/include/bcrypt.h b/include/bcrypt.h
index 8947d130f9e..4638e51dcf6 100644
--- a/include/bcrypt.h
+++ b/include/bcrypt.h
@@ -76,6 +76,7 @@ typedef LONG NTSTATUS;
 #define BCRYPT_MD5_ALGORITHM        L"MD5"
 #define BCRYPT_RNG_ALGORITHM        L"RNG"
 #define BCRYPT_RSA_ALGORITHM        L"RSA"
+#define BCRYPT_RSA_SIGN_ALGORITHM   L"RSA_SIGN"
 #define BCRYPT_SHA1_ALGORITHM       L"SHA1"
 #define BCRYPT_SHA256_ALGORITHM     L"SHA256"
 #define BCRYPT_SHA384_ALGORITHM     L"SHA384"
@@ -129,6 +130,7 @@ static const WCHAR BCRYPT_MD4_ALGORITHM[] = {'M','D','4',0};
 static const WCHAR BCRYPT_MD5_ALGORITHM[] = {'M','D','5',0};
 static const WCHAR BCRYPT_RNG_ALGORITHM[] = {'R','N','G',0};
 static const WCHAR BCRYPT_RSA_ALGORITHM[] = {'R','S','A',0};
+static const WCHAR BCRYPT_RSA_SIGN_ALGORITHM[] = {'R','S','A','_','S','I','G','N',0};
 static const WCHAR BCRYPT_SHA1_ALGORITHM[] = {'S','H','A','1',0};
 static const WCHAR BCRYPT_SHA256_ALGORITHM[] = {'S','H','A','2','5','6',0};
 static const WCHAR BCRYPT_SHA384_ALGORITHM[] = {'S','H','A','3','8','4',0};