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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2019-01-28 14:58:41 +0100 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2019-01-28 17:16:33 +0100 |
| commit | cdd1179c63bb892696adfad1818d65e3026916ca (patch) | |
| tree | e2d7265440b8cc51ca544d2c2412041b0d18439d /src/Common/Keyfiles.c | |
| parent | 54e46c260cf04861c99d8b2590999c1eb33f0cb1 (diff) | |
| download | VeraCrypt-cdd1179c63bb892696adfad1818d65e3026916ca.tar.gz VeraCrypt-cdd1179c63bb892696adfad1818d65e3026916ca.zip | |
Increase password maximum length to 128 bytes from 64 bytes
Diffstat (limited to 'src/Common/Keyfiles.c')
| -rw-r--r-- | src/Common/Keyfiles.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/src/Common/Keyfiles.c b/src/Common/Keyfiles.c index 9f756e53..686f3ca8 100644 --- a/src/Common/Keyfiles.c +++ b/src/Common/Keyfiles.c @@ -147,12 +147,12 @@ void KeyFileCloneAll (KeyFile *firstKeyFile, KeyFile **outputKeyFile) } -static BOOL KeyFileProcess (unsigned __int8 *keyPool, KeyFile *keyFile) +static BOOL KeyFileProcess (unsigned __int8 *keyPool, unsigned __int32 keyPoolSize, KeyFile *keyFile) { FILE *f; unsigned __int8 buffer[64 * 1024]; unsigned __int32 crc = 0xffffffff; - int writePos = 0; + unsigned __int32 writePos = 0; size_t bytesRead, totalRead = 0; int status = TRUE; @@ -203,7 +203,7 @@ static BOOL KeyFileProcess (unsigned __int8 *keyPool, KeyFile *keyFile) keyPool[writePos++] += (unsigned __int8) (crc >> 8); keyPool[writePos++] += (unsigned __int8) crc; - if (writePos >= KEYFILE_POOL_SIZE) + if (writePos >= keyPoolSize) writePos = 0; if (++totalRead >= KEYFILE_MAX_READ_LEN) @@ -248,6 +248,7 @@ BOOL KeyFilesApply (HWND hwndDlg, Password *password, KeyFile *firstKeyFile, con wchar_t searchPath [TC_MAX_PATH*2]; struct _wfinddata_t fBuf; intptr_t searchHandle; + unsigned __int32 keyPoolSize = password->Length <= MAX_LEGACY_PASSWORD? KEYFILE_POOL_LEGACY_SIZE : KEYFILE_POOL_SIZE; HiddenFilesPresentInKeyfilePath = FALSE; @@ -278,7 +279,7 @@ BOOL KeyFilesApply (HWND hwndDlg, Password *password, KeyFile *firstKeyFile, con } unsigned __int32 crc = 0xffffffff; - int writePos = 0; + unsigned __int32 writePos = 0; size_t totalRead = 0; for (size_t i = 0; i < keyfileData.size(); i++) @@ -290,7 +291,7 @@ BOOL KeyFilesApply (HWND hwndDlg, Password *password, KeyFile *firstKeyFile, con keyPool[writePos++] += (unsigned __int8) (crc >> 8); keyPool[writePos++] += (unsigned __int8) crc; - if (writePos >= KEYFILE_POOL_SIZE) + if (writePos >= keyPoolSize) writePos = 0; if (++totalRead >= KEYFILE_MAX_READ_LEN) @@ -371,7 +372,7 @@ BOOL KeyFilesApply (HWND hwndDlg, Password *password, KeyFile *firstKeyFile, con ++keyfileCount; // Apply keyfile to the pool - if (!KeyFileProcess (keyPool, kfSub)) + if (!KeyFileProcess (keyPool, keyPoolSize, kfSub)) { handleWin32Error (hwndDlg, SRC_POS); Error ("ERR_PROCESS_KEYFILE", hwndDlg); @@ -390,7 +391,7 @@ BOOL KeyFilesApply (HWND hwndDlg, Password *password, KeyFile *firstKeyFile, con } } // Apply keyfile to the pool - else if (!KeyFileProcess (keyPool, kf)) + else if (!KeyFileProcess (keyPool, keyPoolSize, kf)) { handleWin32Error (hwndDlg, SRC_POS); Error ("ERR_PROCESS_KEYFILE", hwndDlg); @@ -400,7 +401,7 @@ BOOL KeyFilesApply (HWND hwndDlg, Password *password, KeyFile *firstKeyFile, con /* Mix the keyfile pool contents into the password */ - for (i = 0; i < sizeof (keyPool); i++) + for (i = 0; i < keyPoolSize; i++) { if (i < password->Length) password->Text[i] += keyPool[i]; @@ -408,8 +409,8 @@ BOOL KeyFilesApply (HWND hwndDlg, Password *password, KeyFile *firstKeyFile, con password->Text[i] = keyPool[i]; } - if (password->Length < (int)sizeof (keyPool)) - password->Length = sizeof (keyPool); + if (password->Length < keyPoolSize) + password->Length = keyPoolSize; burn (keyPool, sizeof (keyPool)); |