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QAEAD

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BrutalWizard edited this page Sep 21, 2020 · 10 revisions

Example:

#include <QByteArray>

#include "QAEAD.h"

int main() {
    QByteArray key = "AABBCCEEFFGGHHKKLLMMNNOOPPRRSSTT";
    QByteArray iv = "AABBCCEEFFGGHHKKLLMMNNOOPPRRSSTT";
    QByteArray aad = "AABBCCDDEEFF";
    QByteArray tag = "AABBCCDDEEFF";

    QSimpleCrypto::QAEAD aead;
    QByteArray encrypted = aead.encryptAesGcm("Hello World", key, iv, &tag, aad);
    QByteArray decrypted = aead.decryptAesGcm(bytes, key, iv, &tag, aad);
}

Detailed Description

QByteArray encryptAesGcm(QByteArray data, QByteArray key, QByteArray iv, QByteArray* tag, QByteArray aad = "", const EVP_CIPHER* cipher = EVP_aes_256_gcm());
  • data - Data that will be encrypted
  • key - AES key
  • iv - Initialization vector
  • tag - Authorization tag
  • aad - Additional authenticated data. Must be nullptr, if not used
  • cipher - Can be used with OpenSSL EVP_CIPHER (gcm) - 128, 192, 256. Example: EVP_aes_256_gcm()

Returns encrypted data

QByteArray decryptAesGcm(QByteArray data, QByteArray key, QByteArray iv, QByteArray* tag, QByteArray aad = "", const EVP_CIPHER* cipher = EVP_aes_256_gcm());
  • data - Data that will be decrypted
  • key - AES key
  • iv - Initialization vector
  • tag - Authorization tag
  • aad - Additional authenticated data. Must be nullptr, if not used
  • cipher - Can be used with OpenSSL EVP_CIPHER (gcm) - 128, 192, 256. Example: EVP_aes_256_gcm()

Returns decrypted data

QByteArray encryptAesCcm(QByteArray data, QByteArray key, QByteArray iv, QByteArray* tag, QByteArray aad = "", const EVP_CIPHER* cipher = EVP_aes_256_ccm());
  • data - Data that will be encrypted
  • key - AES key
  • iv - Initialization vector (7 bytes)
  • tag - Authorization tag (12 bytes)
  • aad - Additional authenticated data. Must be nullptr, if not used
  • cipher - Can be used with OpenSSL EVP_CIPHER (ccm) - 128, 192, 256. Example: EVP_aes_256_ccm()

Returns encrypted data

QByteArray decryptAesCcm(QByteArray data, QByteArray key, QByteArray iv, QByteArray* tag, QByteArray aad = "", const EVP_CIPHER* cipher = EVP_aes_256_ccm());
  • data - Data that will be decrypted
  • key - AES key
  • iv - Initialization vector (7 bytes)
  • tag - Authorization tag (12 bytes)
  • aad - Additional authenticated data. Must be nullptr, if not used
  • cipher - Can be used with OpenSSL EVP_CIPHER (ccm) - 128, 192, 256. Example: EVP_aes_256_ccm()

Returns decrypted data

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