Storing RSA Private Keys In Your Head

Taisya Krivoruchko, J. Diamond, J. Hooper
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引用次数: 2

Abstract

An issue when using the RSA public-key system is that for reasonable levels of security, both the public key and the private key must be quite large. Since few people are capable of memorizing a 1024-bit private key, most people must store this number on a computer hard drive or other digital storage device. There are (at least) three problems with this; the first is that if your computer is even temporarily compromised, your private key could be stolen. The second is that if you are away from your computer (and don't have your key on a portable storage device) but need your private key to access some resource, you are unable to do so. The third is that your key could be irrevocably lost because of hardware problems. This paper describes a way of generating a public/private RSA key pair from a passphrase to overcome these problems. Although the paper's focus is on the generation of RSA keys, the process can be applied to any cryptosystem (symmetric or asymmetric) which relies on random data for generating keys
在你的头脑中存储RSA私钥
使用RSA公钥系统时的一个问题是,为了达到合理的安全级别,公钥和私钥都必须相当大。由于很少有人能够记住1024位私钥,大多数人必须将这个数字存储在计算机硬盘驱动器或其他数字存储设备上。这(至少)存在三个问题;首先,如果你的电脑被暂时入侵,你的私钥可能被盗。第二个问题是,如果您远离计算机(并且没有将密钥存储在便携式存储设备上),但是需要您的私钥来访问某些资源,则无法这样做。第三种是由于硬件问题,您的密钥可能会不可挽回地丢失。本文描述了一种从密码短语生成公钥/私钥对的方法来克服这些问题。虽然本文的重点是RSA密钥的生成,但该过程可以应用于任何依赖随机数据生成密钥的密码系统(对称或非对称)
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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