I would steer clear of any “simple C++ implementation” when it comes to encryption as it might implement vulnerabilities. Only use up to date, supported libraries. The most popular choices are libcrypto (OpenSSL) but it’s in C or CryptoC++ https://www.cryptopp.com/ I think the support needed to maintain a crypto library is just too much of a burden to be carried by Qt internally
From: Christophe Thomas [mailto:oxygen77...@gmail.com] Sent: 07 January 2018 18:01 To: interest@qt-project.org Subject: [Interest] Integrate crypto in Qt project Hello, I'm working on a projects that needs to integrate following crypto functions: - validate signature - compute hash ==> I found QCryptographiqueHash - manage certificate ==> I found QSslCertificate - do some decryption/encryption using blowfish ==> I found some simple C++ implementation that I've added to my project So I'm blocked on the first subject. I have to admit that I'm not mastering crypto subjects. What I understand: - I have 3 data: * a signature => (I only have 2 data named R & S) * a hash of data (SHA1) * a public key (p, g, g, y=pub data) - I should use DSA - I will get a Correct / Not Correct answer Any hint on what to use? dive into openssl api ? use QCA project (https://github.com/highfidelity/qca) ? Thank you Chris
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