Hid iCLASS SE Encoder User Guide Manual de usuario descargar pdf (Pagina 183)

Glossary

April 2014 PLT-01067, Version: A.3

Glossary

Term Description

AES

Advanced Encryption Standard

The Advanced Encryption Standard (AES) is a specification for the encryption of

electronic data established by the U.S. National Institute of Standards and Technology

(NIST).

AES is based on a design principle known as a substitution-permutation network, and

is fast in both software and hardware. Unlike its predecessor DES, AES does not use a

Feistel network. AES is a variant of Rijndael which has a fixed block size of 128 bits,

The key size used for an AES cipher specifies the number of repetitions of

transformation rounds that convert the input, called the plaintext, into the final output,

called the ciphertext. The number of cycles of repetition are as follows:

10 cycles of repetition for 128-bit keys.

12 cycles of repetition for 192-bit keys.

14 cycles of repetition for 256-bit keys.

APDU Application Protocol Data Unit

AEAD Authenticated Encryption with Associated Data

CPO Custom Product Offering

DES

Data Encryption Standard

DES is a widely-used method of data encryption using a private (secret) key that was

judged so difficult to break by the U.S. government that it was restricted for

exportation to other countries. For each given message, the key is chosen at random

from among this enormous number of keys. Like other private key cryptographic

methods, both the sender and the receiver must know and use the same private key.

DES applies a 56-bit key to each 64-bit block of data. The process can run in several

modes and involves 16 rounds or operations. Although this is considered "strong"

encryption, many companies use "triple DES", which applies three keys in succession.

NIST

National Institute of Standards and Technology

OEM

Original Equipment Manufacturer

MAD MIFARE Application Directory

PACS

Physical Access Control Solutions

SAM Secure Application Module

SIO-Enabled or Secure Element

SIO

Secure Identity Object

SNMP

Simple Network Management Protocol

Secure Object - Can have more than one per SIO

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