From d8da3e83ff5bcb0e406c508de58cd081a7434bad Mon Sep 17 00:00:00 2001
From: Juan Lang <juan.lang@gmail.com>
Date: Fri, 8 Aug 2008 10:25:43 -0700
Subject: [PATCH] crypt32: Implement CryptHashToBeSigned.

---
 dlls/crypt32/cert.c       | 40 +++++++++++++++++++++++++++++++++++++--
 dlls/crypt32/tests/cert.c |  5 -----
 2 files changed, 38 insertions(+), 7 deletions(-)

diff --git a/dlls/crypt32/cert.c b/dlls/crypt32/cert.c
index 0dc10c0e651..7eedd524add 100644
--- a/dlls/crypt32/cert.c
+++ b/dlls/crypt32/cert.c
@@ -1534,9 +1534,45 @@ BOOL WINAPI CryptHashToBeSigned(HCRYPTPROV_LEGACY hCryptProv,
  DWORD dwCertEncodingType, const BYTE *pbEncoded, DWORD cbEncoded,
  BYTE *pbComputedHash, DWORD *pcbComputedHash)
 {
-    FIXME("(%08lx, %08x, %p, %d, %p, %d): stub\n", hCryptProv, dwCertEncodingType,
+    BOOL ret;
+    CERT_SIGNED_CONTENT_INFO *info;
+    DWORD size;
+
+    TRACE("(%08lx, %08x, %p, %d, %p, %d)\n", hCryptProv, dwCertEncodingType,
      pbEncoded, cbEncoded, pbComputedHash, *pcbComputedHash);
-    return FALSE;
+
+    ret = CryptDecodeObjectEx(dwCertEncodingType, X509_CERT,
+     pbEncoded, cbEncoded, CRYPT_DECODE_ALLOC_FLAG, NULL, (void *)&info, &size);
+    if (ret)
+    {
+        PCCRYPT_OID_INFO oidInfo;
+        HCRYPTHASH hHash;
+
+        if (!hCryptProv)
+            hCryptProv = CRYPT_GetDefaultProvider();
+        oidInfo = CryptFindOIDInfo(CRYPT_OID_INFO_OID_KEY,
+         info->SignatureAlgorithm.pszObjId, 0);
+        if (!oidInfo)
+        {
+            SetLastError(NTE_BAD_ALGID);
+            ret = FALSE;
+        }
+        else
+        {
+            ret = CryptCreateHash(hCryptProv, oidInfo->u.Algid, 0, 0, &hHash);
+            if (ret)
+            {
+                ret = CryptHashData(hHash, info->ToBeSigned.pbData,
+                 info->ToBeSigned.cbData, 0);
+                if (ret)
+                    ret = CryptGetHashParam(hHash, HP_HASHVAL, pbComputedHash,
+                     pcbComputedHash, 0);
+                CryptDestroyHash(hHash);
+            }
+        }
+        LocalFree(info);
+    }
+    return ret;
 }
 
 BOOL WINAPI CryptSignCertificate(HCRYPTPROV_OR_NCRYPT_KEY_HANDLE hCryptProv,
diff --git a/dlls/crypt32/tests/cert.c b/dlls/crypt32/tests/cert.c
index ce3bf882879..118b6b09301 100644
--- a/dlls/crypt32/tests/cert.c
+++ b/dlls/crypt32/tests/cert.c
@@ -2575,33 +2575,28 @@ static void testHashToBeSigned(void)
      "expected ERROR_FILE_NOT_FOUND, got %d\n", GetLastError());
     SetLastError(0xdeadbeef);
     ret = CryptHashToBeSigned(0, X509_ASN_ENCODING, NULL, 0, NULL, &size);
-    todo_wine
     ok(!ret && GetLastError() == CRYPT_E_ASN1_EOD,
      "expected CRYPT_E_ASN1_EOD, got %08x\n", GetLastError());
     /* Can't sign anything:  has to be asn.1 encoded, at least */
     SetLastError(0xdeadbeef);
     ret = CryptHashToBeSigned(0, X509_ASN_ENCODING, int1, sizeof(int1),
      NULL, &size);
-    todo_wine
     ok(!ret && GetLastError() == CRYPT_E_ASN1_BADTAG,
      "expected CRYPT_E_ASN1_BADTAG, got %08x\n", GetLastError());
     /* Can't be empty, either */
     SetLastError(0xdeadbeef);
     ret = CryptHashToBeSigned(0, X509_ASN_ENCODING, emptyCert,
      sizeof(emptyCert), NULL, &size);
-    todo_wine
     ok(!ret && GetLastError() == CRYPT_E_ASN1_CORRUPT,
      "expected CRYPT_E_ASN1_CORRUPT, got %08x\n", GetLastError());
     /* Signing a cert works */
     ret = CryptHashToBeSigned(0, X509_ASN_ENCODING, md5SignedEmptyCert,
      sizeof(md5SignedEmptyCert), NULL, &size);
-    todo_wine {
     ok(ret, "CryptHashToBeSigned failed: %08x\n", GetLastError());
     ok(size == sizeof(md5SignedEmptyCertHash), "unexpected size %d\n", size);
     ret = CryptHashToBeSigned(0, X509_ASN_ENCODING, md5SignedEmptyCert,
      sizeof(md5SignedEmptyCert), hash, &size);
     ok(!memcmp(hash, md5SignedEmptyCertHash, size), "unexpected value\n");
-    }
 }
 
 static void testCompareCert(void)