How to use 3DES algorithm on Android?

Question

On the server side, the encyption/decryption of the password field is done in C#.

Now, i need to implement same functionality in my android application. So, i follow

Answer 1

Triple DES is called "DESede" (DES using single DES Encrypt, Decrypt, Encrypt for encryption) in both Java and Android runtimes. So it is build in functionality which can be access through the Cipher class. It also lists the available algorithms. For triple DES you could use "DESede/CBC/PKCS5Padding"`. Don't forget to supply it a random IV of 8 bytes.

Triple DES should only be used for backwards compatibility. If you decide to use it at least supply it 24 bytes of key material, otherwise there is a chance that your ciphertext can be cracked. For a more modern approach use AES, preferably in an authenticated mode such as GCM ("AES/GCM/NoPadding"). Note that GCM requires a unique nonce of 12 bytes.