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bio website github.com/woot4moo
location USA
age 94
visits member for 1 year, 9 months
seen Jan 14 '13 at 19:16

I enjoy long walks on the beach and kittens.


Mar
14
awarded  Student
Jan
14
comment Is the One Time Pad (OTP) considered a cryptographic hash function?
And the down vote why?
Jan
14
comment Is the One Time Pad (OTP) considered a cryptographic hash function?
thoughtful response. But we also know that each digest is not unique in a cryptographic hash, it just has a low chance of collision.
Jan
14
comment Is the One Time Pad (OTP) considered a cryptographic hash function?
Ah I see the point about never shortening the message. I would say in my opinion a cryptographic hash function is a hash function that relies on keys / random data and has a strong resistance to collisions with the properties that other hashes have (small change in input = big change in output). I would say OTP meets this, and yes I consider SHA2 to meet this as well. Perhaps my definition is too loose?
Jan
11
comment Is the One Time Pad (OTP) considered a cryptographic hash function?
Sure I understand given a large enough message, however it is the case that the output of an OTP function is always different and at least the length of the message for a given input. This does not preclude it from being a cryptographic hash in my opinion.
Jan
11
awarded  Supporter
Jan
11
comment Is the One Time Pad (OTP) considered a cryptographic hash function?
I thought the output of OTP is at a minimum the length of the input, is that not true?
Jan
11
awarded  Autobiographer
Jan
11
asked Is the One Time Pad (OTP) considered a cryptographic hash function?