>>I was just pulling your leg - but to answer the question
>>
>>(1) a hash is always the same length (eg md5 hash = 16 bytes or 32 hex chars)
>>(2) encryption without block cyphering (eg rc4) : the lengths will vary
>>(3) If you use block ciphering, the lengths will vary depending on the length of the password, but all lengths will be a multiple of the block
>>
>>So, looking at the lengths of the encrypted passwords
>>
>>- if the length is constant, it's likely to be a hash
>>- if the lengths are a multiple of something (not 1) it's likely to be a block cipher
>>- otherwise it's encrypted, but not with a block cipher
>>
>>I case of passwords - since the lengths are small - it's difficult to distinguish between hash and block cipher
>>
>>
>>see http://en.wikipedia.org/wiki/Block_cipher
>>http://en.wikipedia.org/wiki/Cryptographic_hash_function
>>
>>Post your encrypted passwords and let me guess
>
>Let you guess the password?


Nah, hash or encryption