(Unicode C++) Encrypt / Decrypt Secure Strings

Demonstrates how to use the EncryptSecureENC and DecryptSecureENC methods to encrypt/decrypt secure strings. These methods were added in Chilkat v9.5.0.71 (released January 2018).

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#include <CkSecureStringW.h>
#include <CkCrypt2W.h>

void ChilkatSample(void)
    {
    //  This example requires the Chilkat Crypt API to have been previously unlocked.
    //  See Unlock Chilkat Crypt for sample code.

    //  Load the secure string with some text.
    CkSecureStringW secStr1;
    bool success = secStr1.LoadFile(L"qa_data/txt/helloWorld.txt",L"utf-8");
    if (success != true) {
        wprintf(L"Failed to load helloWorld.txt\n");
        return;
    }

    CkCrypt2W crypt;

    crypt.put_CryptAlgorithm(L"aes");
    crypt.put_CipherMode(L"cbc");
    crypt.put_KeyLength(128);
    crypt.SetEncodedKey(L"000102030405060708090A0B0C0D0E0F",L"hex");
    crypt.SetEncodedIV(L"000102030405060708090A0B0C0D0E0F",L"hex");
    crypt.put_EncodingMode(L"base64");

    //  Return the base64 encoded encrypted contents of secStr1.
    const wchar_t *encryptedStr = crypt.encryptSecureENC(secStr1);
    wprintf(L"Encrypted string: %s\n",encryptedStr);

    //  Output:
    //  Encrypted string: qiq+IFhcjTkEIkZyf31V/g==

    //  Decrypt to secStr2:
    CkSecureStringW secStr2;
    crypt.DecryptSecureENC(encryptedStr,secStr2);

    //  Access the contents of secStr2
    wprintf(L"Decrypted string: %s\n",secStr2.access());

    //  Output:
    //  Decrypted string: Hello World!
    }