精品国产99久久久久久www_亚洲精彩视频在线观看的_性欧美婬妇ⅹxxx视频_里番肉工口全彩老师_a天堂最新在线观看_精品国产在天天在线观看_免费看那种视频_樱桃电视剧全集播放_成人性视频免费看的鲁片_中国伦理影院

Product Overview

The CryptoCompanion? Chipis designed to complement Atmel’s CryptoRF? and CryptoMemory?chips, collectively referred to in the remainder of this document as CRF. CryptoCompanion makes extensive use of the SHA-1 hashalgorithmas specified in http://www.itl.nist.gov/fipspubs/fip180-1.htm and else where. In this document, the nomenclature SHA-1(a,b, c) means to concatenatea, b & c in that orderand then pad them to a block size of 64 bytes before computing the digest. CryptoCompanion generates SHA-1 digests of single round datasets at a time.

Features

Companion Chip to CryptoRF and CryptoMemory

─ Securelyimplements host algorithms

─ Securelystores host secrets

─ Verifies Host Firmware Digests

High Security Features in Hardware

─ CryptoMemoryand CryptoRFF2Algorithm CryptoCompanion Chip

─ SHA-1 Standard CryptographicAlgorithm

─ 64-bit Mutual Authentication Protocol (Under License of ELVA)

─ PermanentlyCoded SerialNumbers

─ High Quality Random NumberGenerator (RNG)

─ Metal Shield Over Memory

─ Data Scrambling in Nonvolatile Memory

─ DelayPenalties to prevent Systematic Attacks

─ Reset Locking to prevent Illegal Power Cycling

─ Voltage and Frequency Monitors

Host-side Crypto Functions

─Authentication Challenge Generation

─ Device Challenge Response

─ MessageAuthentication Codes (MAC) Generation

─ Data Encryptionand Decryption

─ Secure Authentication Key Management

Secure Storageand Key Management

─ Up to 16 sets of 64-bits Diversified Host Keys

─ Eight Sets of Two 24-bit Passwords

─ Secure and Custom Personalization

─ Up to 232-ByteRead/Write Configurable User Data Area

Nonvolatile Up Counters

─ Four sets Unidirectional Counters

─ 64 Million Maximum Counts Per Counter

Application Features

─ LowVoltage Operation: 2.7V – 3.3V

─ 2-Wire Serial Interface

─ 1.0 MHz Compatibilityfor FastOperation

─ Standard 8-leadPlastic Packages

High Reliability

─ Endurance : 100,000 Cycles

─ Data Retention : 10 years

─ ESD Protection : 3,000 min