[Bug 42652] New: CryptCreateHash error NTE_FAIL after CryptImportKey( public-key)

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=42652

            Bug ID: 42652
           Summary: CryptCreateHash error NTE_FAIL after
                    CryptImportKey(public-key)
           Product: Wine
           Version: 2.2
          Hardware: x86
                OS: Mac OS X
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: rsaenh
          Assignee: wine-bugs at winehq.org
          Reporter: shirouzu at ipmsg.org

Created attachment 57588
  --> https://bugs.winehq.org/attachment.cgi?id=57588
reproduction-project

Hello, wine developers.

I got CryptCreateHash error (NTE_FAIL=0x80090020) after CryptImportKey(another
user's  'public' key).

Always OK : WindowsXP/Vista/7/8/8.1/10
Always NG : Wine 1.8/2.0(and wine-hq 2.2) in MacOSX(sierra) and Linux
debian(testing, wheezy, or etc).

In the following Senario ... Encrypt with another user's public key, and sign
with my PrivateKey.

1. CryptAcquireContext(...MS_ENHANCED_PROV, PROV_RSA_FULL...)
2. CryptGenKey() or CryptUserKey() for private key
3. CryptImportKey(another users' public key, &hExKey)
4. CryptEncrypt(hExKey, data...)
5. CryptCreateHash() for sign
6. CryptHashData()
7. CryptSignHash() ... I got OK in Windows, but NTE_FAIL in wine.

I post a reproduction-project as attachment-file.
Please see signhash_test.cpp in it.

I think CPSignHash -> encrypt_block_impl -> rsa_exptmod error.
https://github.com/wine-mirror/wine/blob/master/dlls/rsaenh/rsaenh.c

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