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Windows: fix documentation and UI messages about the PIM constraints and calculation formula when EFI system encryption is using SHA-512 or Whirlpool. For historical reasons, if SHA-512 or Whirlpool is selected for EFI system encryption, then iterations = 15000 + (PIM x 1000) and not iterations = PIM x 2048 like the other algorithms.

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This commit is contained in:
Mounir IDRASSI
2017-07-02 19:35:12 +02:00
parent a0f2ffb90b
commit d1b26d4bfe
6 changed files with 27 additions and 14 deletions
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9
src/Common/Password.c
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@@ -133,14 +133,15 @@ BOOL CheckPasswordCharEncoding (HWND hPassword, Password *ptrPw)
}
BOOL CheckPasswordLength (HWND hwndDlg, unsigned __int32 passwordLength, int pim, BOOL bForBoot, BOOL bSkipPasswordWarning, BOOL bSkipPimWarning)
BOOL CheckPasswordLength (HWND hwndDlg, unsigned __int32 passwordLength, int pim, BOOL bForBoot, int bootPRF, BOOL bSkipPasswordWarning, BOOL bSkipPimWarning)
{
BOOL bCustomPimSmall = ((pim != 0) && (pim < (bForBoot? 98 : 485)))? TRUE : FALSE;
BOOL bootPimCondition = (bForBoot && (bootPRF != SHA512 && bootPRF != WHIRLPOOL))? TRUE : FALSE;
BOOL bCustomPimSmall = ((pim != 0) && (pim < (bootPimCondition? 98 : 485)))? TRUE : FALSE;
if (passwordLength < PASSWORD_LEN_WARNING)
{
if (bCustomPimSmall)
{
Error (bForBoot? "BOOT_PIM_REQUIRE_LONG_PASSWORD": "PIM_REQUIRE_LONG_PASSWORD", hwndDlg);
Error (bootPimCondition? "BOOT_PIM_REQUIRE_LONG_PASSWORD": "PIM_REQUIRE_LONG_PASSWORD", hwndDlg);
return FALSE;
}
@@ -157,7 +158,7 @@ BOOL CheckPasswordLength (HWND hwndDlg, unsigned __int32 passwordLength, int pim
}
#endif
if ((pim != 0) && (pim > (bForBoot? 98 : 485)))
if ((pim != 0) && (pim > (bootPimCondition? 98 : 485)))
{
// warn that mount/boot will take more time
Warning ("PIM_LARGE_WARNING", hwndDlg);

2
src/Common/Password.h
View File

@@ -39,7 +39,7 @@ typedef struct
#if defined(_WIN32) && !defined(TC_WINDOWS_DRIVER) && !defined(_UEFI)
void VerifyPasswordAndUpdate ( HWND hwndDlg , HWND hButton , HWND hPassword , HWND hVerify , unsigned char *szPassword , char *szVerify, BOOL keyFilesEnabled );
BOOL CheckPasswordLength (HWND hwndDlg, unsigned __int32 passwordLength, int pim, BOOL bForBoot, BOOL bSkipPasswordWarning, BOOL bSkipPimWarning);
BOOL CheckPasswordLength (HWND hwndDlg, unsigned __int32 passwordLength, int pim, BOOL bForBoot, int bootPRF, BOOL bSkipPasswordWarning, BOOL bSkipPimWarning);
BOOL CheckPasswordCharEncoding (HWND hPassword, Password *ptrPw);
int ChangePwd (const wchar_t *lpszVolume, Password *oldPassword, int old_pkcs5, int old_pim, BOOL truecryptMode, Password *newPassword, int pkcs5, int pim, int wipePassCount, HWND hwndDlg);