Encryption and Decryption Using Public ~ Private keys

[kosasker]

Encryption and Decryption Using Public ~ Private keys, key files.
Basicly, which library i must use to do it.

Regards.

[ChrisW67]

Any library you like, Qt doesn't provide this out-of-the-box.

Here are a few options. I'm sure if you searched you'd find others.
QCA (http://api.kde.org/kdesupport-api/kdesupport-apidocs/qca/html/)
Crypto++ (http://www.cryptopp.com/)
OpenSSL (http://www.openssl.org)