Presented at
BSidesLV 2015,
Aug. 5, 2015, 2 p.m.
(25 minutes).
Password-based encryption needs all the help it can get to withstand brute-force attacks. We repurpose an old idea to encrypt data so that each password guess requires processing all of the encrypted data. Then, we'll look at some use cases to see how the costs change for the attacker and defender. In a brute force attack, this can mean a large increase in attacker I/O, with little cost increase to defenders, who must process all of the data anyway.
Presenters:
-
Greg Zaverucha
- Software Engineer - Microsoft
Greg is a software engineer in the MSR Security and Cryptography group at Microsoft. He performs research in applied cryptography, implements cryptographic primitives, and helps product teams use cryptography securely. Prior to joining Microsoft, Greg worked on applied research, standardization and product security at Certicom/Blackberry. Greg holds a PhD in CS specializing in cryptography from the University of Waterloo.
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