I use the Crypto++5.4 and wrote the following code to encrypt a file
by AES. It is ok for my computer(Windows XP, English OS).
However, when I run it in the computer which installed JAPANESE
Windows Vista, it catches an exception "FileSink: error opening file
for writing: C:\xyz.tmp".
Actually the error message show the yen symbol instead of the back
slash "\".
I think the FileSink cannot resolve the absolute path in Japanese OS.
I also try that if I use relative path(temp\abc.txt) instead of
absolute path, it runs successfully. It only fails for absolute
path(e.g. c:\abc.txt)
So hope any experts can help me. Your help is much appreciated.
Here is the source code:
CryptoPP::FileSource fsFileIn(strFileIn,true);
CryptoPP::FileSink *fsFileOut = new
CryptoPP::FileSink(strFileOut.c_str());
// Initialize Encryptor
CryptoPP::AES::Encryption aesEncryption((byte *) strPassword,
sizeof(strPassword) );
CryptoPP::CBC_Mode_ExternalCipher::Encryption
cbcEncryption( aesEncryption, (byte *)strIV );
CryptoPP::StreamTransformationFilter stfEncryptor(cbcEncryption,
fsFileOut );
while (fsFileIn.AnyRetrievable()==true) {
intByteReceived=fsFileIn.Get(bytBuffer,intKeyLength); //read from
file in
stfEncryptor.Put(bytBuffer, intByteReceived); //write encrypted data
to file out
}
stfEncryptor.MessageEnd(); //close the file out
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