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Single-block collision for MD5

Paper

- Single-block collision attack on MD5, Marc Stevens, preprint, 2012, (PDF).



In response to the challenge posted in:

- Construct MD5 Collisions Using Just A Single Block Of Message, Tao Xie and Dengguo Feng, Cryptology ePrint Archive, Report 2010/643, (PDF).

Program

Example collision

> md5sum message1.bin message2.bin

008ee33a9d58b51cfeb425b0959121c9 message1.bin

008ee33a9d58b51cfeb425b0959121c9 message2.bin

> sha1sum message1.bin message2.bin

c6b384c4968b28812b676b49d40c09f8af4ed4cc message1.bin

c728d8d93091e9c7b87b43d9e33829379231d7ca message2.bin

Contact

marc

marc-stevens.nl