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(Android™) Simple AES ECB DecryptionSee more Encryption ExamplesDecrypt 256-bit encrypted content.
// Important: Don't forget to include the call to System.loadLibrary // as shown at the bottom of this code sample. package com.test; import android.app.Activity; import com.chilkatsoft.*; import android.widget.TextView; import android.os.Bundle; public class SimpleActivity extends Activity { private static final String TAG = "Chilkat"; // Called when the activity is first created. @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkCrypt2 crypt = new CkCrypt2(); // 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.put_CryptAlgorithm("aes"); crypt.put_CipherMode("ecb"); crypt.put_KeyLength(256); // use the exact ascii bytes as the key. crypt.SetEncodedKey(key,"ascii"); crypt.put_EncodingMode("base64"); String pt = crypt.decryptStringENC(ct); Log.i(TAG, pt); } static { System.loadLibrary("chilkat"); // Note: If the incorrect library name is passed to System.loadLibrary, // then you will see the following error message at application startup: //"The application <your-application-name> has stopped unexpectedly. Please try again." } } |
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