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28 lines
1.1 KiB
C
28 lines
1.1 KiB
C
/*
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* cryptoapi.h: Windows Crypto API functions defined in PuTTY that
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* use the crypt32 library. Also centralises the machinery for
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* dynamically loading that library, and our own functions using that
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* in turn.
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*/
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DECL_WINDOWS_FUNCTION(extern, BOOL, CryptProtectMemory, (LPVOID,DWORD,DWORD));
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bool got_crypt(void);
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/*
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* Function to obfuscate an input string into something usable as a
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* pathname for a Windows named pipe. Uses CryptProtectMemory to make
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* the obfuscation depend on a key Windows stores for the owning user,
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* and then hashes the string as well to make it have a manageable
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* length and be composed of filename-legal characters.
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*
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* Rationale: Windows's named pipes all live in the same namespace, so
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* one user can see what pipes another user has open. This is an
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* undesirable privacy leak: in particular, if we used unobfuscated
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* names for the connection-sharing pipe names, it would permit one
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* user to know what username@host another user is SSHing to.
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*
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* The returned string is dynamically allocated.
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*/
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char *capi_obfuscate_string(const char *realname);
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