cifrado de datos(The process of converting readable data (plaintext) into a coded form (ciphertext) to prevent it from being read by an unauthorized party)
Estándar de cifrado de datos(An encryption algorithm that uses a 56-bit key and maps a 64-bit input block to a 64-bit output block. The key appears to be a 64-bit key, but one bit in each of the eight bytes is used for odd parity, resulting in 56 bits of usable key)