Java

Simple AES ECB Decryption

See more Encryption Examples

Decrypt 256-bit encrypted content. Chilkat2 Java

import com.chilkatsoft.chilkat2.Crypt2;

public class ChilkatExample {

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

        Crypt2 crypt = new Crypt2();

        // Encrypted content (base64-encoded)
        String ct = "d/95VziAnUNKkpXr3dJBFcQqAEDWlDkc7EU2jLkYPxmr6PpLRJlgHos+/Uy28CvJsmztQ3JkJAMukVoj46QJ/7RMuqLb31cSKd1ZvMzx9J9b6q0EkmPJcSfBhf2x7v5Qvq3lz1EIH7RM61cDGf+g9p4lt6FtU2MzCqtYD+Vr29voCn5WU1CnXmks64RrbyDA1DDHOx2deJ4Kn68+KoPM9tAw9kbf4HApL1nJYU3Mfzl+MnuHuB2kJpL5GqbuNvS+4QjxuwtNGuZEEY0gOS4RIvWl/XfkxtWHMkzsKy08AO792xDGer4rL4Q1NcfI/H2V";

        // 256-bit AES key (literally the 32 us-ascii bytes of this string)
        String key = "sQsPQYesBM5qEM5OSxicFatIiLM459Bu";

        // Note: If your AES key is a string, and it's not clearly hex or base64, AND if the length of the string is the exact size of the AES key,
        // then *literally* use the ascii chars as the AES key.

        crypt.setCryptAlgorithm("aes");
        crypt.setCipherMode("ecb");
        crypt.setKeyLength(256);
        // use the exact ascii bytes as the key.
        crypt.setEncodedKey(key, "ascii");
        crypt.setEncodingMode("base64");

        String pt = crypt.decryptStringENC(ct);

        System.out.println(pt);
    }
}