DES (Data Encryption Standard)

The Data Encryption Standard (DES) is a common standard for data encryption and a form of secret key cryptography (SKC), which uses only one key for encryption and decryption. Public key cryptography (PKC) uses two keys (i.e., one for encryption and one for decryption).

NENA-STA-010, NENA i3 Standard for Next Generation 9-1-1