Atmel ATSHA204 SHA－256密码系统解决方案

Atmel公司的ATSHA204是采用安全哈希算法(SHA)的全加密安全器件,可以用在大多数密码系统,是现代大多数安全认证协议的元件.器件包括了高质量硬件随即号码发生器(RNG)以及联邦信息处理标准(FIPS)确定性的随机比特发生器(DRBG),从而防止重放攻击.每个器件保证有单独的72位序列码,主要用在附件,女儿板等的防复制保护,网络和计算机的安全访问,加密下载的密钥更改,控制网络的加密通信以及建筑物控制和消费类电子等.本文介绍了ATSHA204主要特性, 评估板AT88CK490主要特性,电路图和材料清单.

The Secure Hash Algorithm (SHA) family of algorithms is widely used in most cryptographic systems and is a component of most modern authentication protocols. These devices provide secure key storage and a tested turnkey hardware implementation of the SHA-256 algorithm.

All devices include a high-quality hardware random number generator (RNG) paired with a Federal Information Processing Standards (FIPS) Deterministic Random Bit Generator (DRBG) to prevent replay attacks. The RNG is available to the system for general-purpose use as well as being integrated into the on-board protocols.
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