C++

PBES2 Password-Based Encryption

See more Encryption Examples

Demonstrates PBES2 encryption C++

#include <CkCrypt2.h>

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

    CkCrypt2 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("pbes2");
    crypt.put_PbesPassword("mySecretPassword");

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

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

    // Give it some salt:
    crypt.SetEncodedSalt("0102030405060708","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("sha256");

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

    const char *plainText = "To be encrypted.";

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

    std::cout << encryptedText << "\r\n";

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

    std::cout << decryptedText << "\r\n";
    }