Qt-AES

Small and portable AES encryption library for Qt

AES-128 · AES-192 · AES-256  |  ECB · CBC · CFB · OFB · CTR  |  PBKDF2 key derivation  |  AES-NI support

Features

• All AES key sizes — 128, 192, 256 bit
• Five cipher modes — ECB, CBC, CFB, OFB, CTR
• Four padding schemes — ISO (default), PKCS7, ZERO, NONE (stream modes)
• PBKDF2-HMAC key derivation (RFC 2898) — no QtNetwork required
• Optional hardware acceleration via AES-NI (all modes)
• Qt 5 and Qt 6 compatible
• Single dependency: QtCore

Quick Start

Add to your CMakeLists.txt:

find_package(QtAES REQUIRED)
target_link_libraries(your_target PRIVATE QtAES::QtAES)

#include <QAESEncryption>

QAESEncryption enc(QAESEncryption::AES_256, QAESEncryption::CBC, QAESEncryption::PKCS7);
QByteArray cipher = enc.encode(plainText, key, iv);
QByteArray plain  = enc.removePadding(enc.decode(cipher, key, iv));

Documentation

Disclaimer

This code is not audited or AES-certified by any competent authority. Use it at your own risk.

License

Released under the Unlicense — public domain, no restrictions.

Questions or suggestions? Open an issue on GitHub.