摘要
分组密码是密码学中使用最为广泛的工具之一,而分组密码的工作模式是指使用分组密码对任意长度的消息进行加解密、认证等的方案。美国国家标准与技术研究院(NIST)积极致力于分组密码工作模式的研究,十余年来陆续发布了大量的工作模式。文中集中讨论了NIST近几年发布的几种新型工作模式,包括加密认证模式GCM、磁盘加密模式XTS、密钥封装模式KeyWrap,并且对这几种新型工作模式的快速实现进行了深入研究。
Block cipher is one of the most widely-used tool in cryptography,and its operation mode features the use of a symmetric-key block-cipher algorithm in providing an infosec service,such as confidentiality or authentication. National Institute of Standards and Technology （ NIST） actively works on block-cipher operation modes, and issues a variety of operation modes over the past decade. And several new operation modes are published in recent years, such as the Galois counter mode GCM, the XTS-AES mode for confi-dentiality on storage devices and the operation methods for key wrapping. This paper discusses these opera-tion modes and their fast implementations.
出处
《通信技术》
2014年第9期1066-1070,共5页
Communications Technology
关键词
分组密码
工作模式
加密
认证
block cipher
mode of operation
encryption
authentication
