(Unicode C++) PBES2 Password-Based Encryption

See more Encryption Examples

For more information, see https://www.chilkatsoft.com/explaining_pbes2_encryption.asp

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#include <CkCrypt2W.h>

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

    CkCrypt2W crypt;

    // Set properties for PBES2 encryption:

    // When the encryption algorithm is set to "pbes2",
    // Chilkat will automatically derive the actual secret key using PBKDF2 and
    // the specified paramters: password, salt, iteration count, hash function, and desired key length.

    crypt.put_CryptAlgorithm(L"pbes2");
    crypt.put_PbesPassword(L"mySecretPassword");

    // Set the underlying PBE algorithm (and key length):
    crypt.put_PbesAlgorithm(L"aes");
    crypt.put_KeyLength(256);

    crypt.SetEncodedIV(L"000102030405060708090A0B0C0D0E0F",L"hex");

    // Give it some salt:
    crypt.SetEncodedSalt(L"0102030405060708",L"hex");

    // A higher iteration count makes the algorithm more
    // computationally expensive and therefore exhaustive
    // searches (for breaking the encryption) is more difficult:
    crypt.put_IterationCount(1024);

    // A hash algorithm needs to be set for PBES2:
    crypt.put_HashAlgorithm(L"sha256");

    // Indicate that the encrypted bytes should be returned
    // as a hex string:
    crypt.put_EncodingMode(L"hex");

    const wchar_t *plainText = L"To be encrypted.";

    const wchar_t *encryptedText = crypt.encryptStringENC(plainText);

    wprintf(L"%s\n",encryptedText);

    // Now decrypt:
    const wchar_t *decryptedText = crypt.decryptStringENC(encryptedText);

    wprintf(L"%s\n",decryptedText);
    }