How to create two colliding md5 executable files

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Hi guys. I am just wondering how it is possible to create two new colliding md5 executable files? In other words, both files have the same hash values.
Appreciate it. Thanks.

Posted 17-Jun-12 2:09am

Giggsey73

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Giggsey73 18-Jun-12 7:25am

I have been searching the Net for an online checksum calculator/tools that can check the efficiency of both md5 and sha1 e.g. speed, accuracy, etc but couldn't find any reliable one. Any suggestions? Many thanks.

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Richard MacCutchan · Answer 1 · 2012-06-17T03:08:00

Solution 1

By experimentation, or by ensuring that the content of both is the same. Since MD5 hashes are one-way you cannot predict what the result of hashing any content is likely to be.

Posted 17-Jun-12 3:08am

Richard MacCutchan