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Paper 2007/101

Practical Password Recovery on an MD5 Challenge and Response

Yu Sasaki and Go Yamamoto and Kazumaro Aoki

Abstract

This paper shows an attack against APOP protocol which is a challenge-and-response protocol. We utilize the Wang's attack to make collisions in MD5, and apply it to APOP protocol. We confirmed that the first 3 octets of secret key can be recovered by several hundred queries under the man-in-the-middle environment.

Metadata
Available format(s)
PDF PS
Category
Cryptographic protocols
Publication info
Published elsewhere. Unknown where it was published
Keywords
APOPMD5collision
Contact author(s)
maro @ isl ntt co jp
History
2007-03-22: received
Short URL
https://ia.cr/2007/101
License
Creative Commons Attribution
CC BY
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