SHA-1 collisions now 2^52

Dustin D. Trammell dtrammell at
Wed Apr 29 11:48:03 EDT 2009

"Until now, the best complete differential path (to our knowledge)
has complexity 2^63

The new path presented has complexity 2^52 - a significant reduction.

Practical collisions are within resources of a well funded organisation.

We are continuing our search for differential paths where the
boomerang attack can be used with maximum effect.

Paper will appear on eprint soon."

Dustin D. Trammell
Security Researcher
BreakingPoint Systems, Inc.
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