On Tuesday, June 26, 2018 at 4:53:24 AM UTC-4, Martin wrote: > > [Code 02] > std::ofstream ofs(enc_file, std::ios_base::trunc); > ofs.write(reinterpret_cast<const char *>(iv.data()), iv.size() * sizeof( > byte) / sizeof(char)); > FileSource(src_file.c_str(), true, new AuthenticatedEncryptionFilter(e, > new FileSink(ofs))); > > Like above. > The content in binary file "enc_file" is not "IV + encrypted". > I doubt FileSink Constructor "FileSink (std::ostream &out)" will modify > std::ostream rather than continuing writing stream. >
No, it does not overwrite std::cout. std::cout is already opened so the FileSink simply writes to it. Jeff > 在 2018年6月26日星期二 UTC+8下午3:40:14，Jeffrey Walton写道： >> >> >> >> On Tuesday, June 26, 2018 at 2:13:25 AM UTC-4, Martin wrote: >>> >>> ... >>> >>> Question: >>> >>> FileSource(<src>, true, new AuthenticatedEncryptionFilter(e, new >>> FileSink(<ofs>))); >>> >>> FileSink (std::ostream &out) >>> >>> Will CryptoPP::FileSink overwriter previous byte stream of <ofs>? >>> >> >> The FileSInk opens the stream using the default ostream flags. It should >> truncate an existing file to 0. Also see >> https://stackoverflow.com/q/39256916/608639 . >> >> Jeff >> > -- You received this message because you are subscribed to "Crypto++ Users". More information about Crypto++ and this group is available at http://www.cryptopp.com and http://groups.google.com/forum/#!forum/cryptopp-users. --- You received this message because you are subscribed to the Google Groups "Crypto++ Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to cryptopp-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
