Introduction - If you have any usage issues, please Google them yourself
The basic principle of DES is that its entrance there are three parameters: key, data, mode. key used for encryption and decryption keys, data encryption and decryption for the data, mode of its work. When the model for the encryption mode, expressly in accordance with the grouping 64 to form a specific group, key for data encryption, when the model mode for decryption, key for decryption of data. Practical application, the key has been used only 64 of 56, so that with high security.