Java

Encrypt / Decrypt Secure Strings

See more Encryption Examples

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). Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Crypt2;
import com.chilkatsoft.chilkat2.SecureString;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        // Load the secure string with some text.
        SecureString secStr1 = new SecureString();
        try {
            secStr1.loadFile("qa_data/txt/helloWorld.txt", "utf-8");
        } catch (ChilkatException e) {
            System.out.println("Failed to load helloWorld.txt");
            return;
        }

        Crypt2 crypt = new Crypt2();

        crypt.setCryptAlgorithm("aes");
        crypt.setCipherMode("cbc");
        crypt.setKeyLength(128);
        crypt.setEncodedKey("000102030405060708090A0B0C0D0E0F", "hex");
        crypt.setEncodedIV("000102030405060708090A0B0C0D0E0F", "hex");
        crypt.setEncodingMode("base64");

        // Return the base64 encoded encrypted contents of secStr1.
        String encryptedStr = crypt.encryptSecureENC(secStr1);
        System.out.println("Encrypted string: " + encryptedStr);

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

        // Decrypt to secStr2:
        SecureString secStr2 = new SecureString();
        crypt.decryptSecureENC(encryptedStr, secStr2);

        // Access the contents of secStr2
        System.out.println("Decrypted string: " + secStr2.access());

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