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Software smart cards via cryptographic camouflage

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2 Author(s)
Hoover, D.N. ; Arcot Syst. Inc., USA ; Kausik, B.N.

A sensitive point in public key cryptography is how to protect the private key. We outline a method of protecting private keys using cryptographic camouflage. Specifically, we do not encrypt the private key with a password that is too long for exhaustive attack. Instead, we encrypt it so that only one password will decrypt it correctly, but many passwords will decrypt it to produce a key that looks valid enough to fool an attacker. For certain applications, this method protects a private key against dictionary attack, as a smart card does, but entirely in software

Published in:

Security and Privacy, 1999. Proceedings of the 1999 IEEE Symposium on

Date of Conference:

1999