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I found an application which stored its password in database as:

A69F00623BE6B8

It's a 14-character string length. How do I know this password algorithm? What's the keyword to describe this 14-character string length hashed value for Google?

7 bytes/56 bit hash algorithm?

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2 Answers 2

up vote 3 down vote accepted

There is a tool for identifying hashes if they are identifiable: http://code.google.com/p/hash-identifier/

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Just tried it on OP's hash and I got "Not Found", I tried upper and lowercases to be sure. The list known/recognizable of hashes is here: code.google.com/p/hash-identifier/source/browse/trunk/… –  Shadok Jul 6 '12 at 14:22

There's no way to work out which hashing algorithm was used based on a single example digest. You can work out the digest length, and based on that make a guess, but it's only a guess. That's what the python script Mark mentions does.

I suspect that's not a string, by the way, but a hexadecimal number. Which would make it 56-bit.

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Could it be DES? That's not a hash, of course, but your question doesn't give enough information to rule out that the password is encrypted rather than hashed... –  Graham Hill Jul 6 '12 at 8:22
    
I don't think so. DES has a 64 bit block size and 56 bit key size. If it were encrypted with DES, it should have a size multiple of 64 bit. –  Zzz Jul 6 '12 at 11:22
    
D'oh, of course, that's a stupid mistake. –  Graham Hill Jul 6 '12 at 12:17

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