Interesting paper from Neal Koblitz about the current state of cryptography research and how’s it’s changing the landscape of academia in mathematics.
[found via the cryptography mailing list]
Archive for the ‘Crypto’ Category
You’ve probably already seen this, since it’s been making it’s way around to all the blogs, but in case you haven’t, a group of Chinese researchers have demonstrated a technique to find collisions for MD4, MD5, HAVAL-128, and RIPEMD.
On a related note, Biham and Chen published a paper at the same crypto conference demonstrating a collision in SHA-0, a close cousin to the NIST standard SHA-1. Although it should be noted that as of right now the attack doesn’t look like it will be able to be extended to SHA-1.
I tested out the MD5 collisions myself on my OpenBSD box, and they seem to work! Looks like the Chinese can go collect their $10,000.00 now.