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@awesometic
awesometic / RSACipher.java
Last active September 29, 2025 18:56
RSA encryption example for android
/**
* Created by Awesometic
* It's encrypt returns Base64 encoded, and also decrypt for Base64 encoded cipher
* references: http://stackoverflow.com/questions/12471999/rsa-encryption-decryption-in-android
*/
import android.util.Base64;
import java.nio.charset.StandardCharsets;
import java.security.InvalidKeyException;
import java.security.KeyFactory;
@oanhnn
oanhnn / using-multiple-github-accounts-with-ssh-keys.md
Last active December 26, 2025 00:43
Using multiple github accounts with ssh keys

Problem

I have two Github accounts: oanhnn (personal) and superman (for work). I want to use both accounts on same computer (without typing password everytime, when doing git push or pull).

Solution

Use ssh keys and define host aliases in ssh config file (each alias for an account).

How to?

  1. Generate ssh key pairs for accounts and add them to GitHub accounts.
@FrankWu100
FrankWu100 / AESEnDecryption.java
Last active July 27, 2022 21:14
AES Encryption/Decryption on Android's Java
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import javax.crypto.spec.IvParameterSpec;
import java.security.MessageDigest;
import java.security.spec.AlgorithmParameterSpec;
import android.util.Base64;
public class AESEnDecryption {