166 reputation
4
bio website example.com
location Canada
age 35
visits member for 1 year, 9 months
seen Sep 6 at 23:47

Sep
3
revised Complexity of verifying OTP secret
added 1192 characters in body
Sep
3
revised Complexity of verifying OTP secret
Add rationale
Sep
3
comment Complexity of verifying OTP secret
I forgot to add the appropriate log too. I left my napkin at home. :)
Sep
3
revised Complexity of verifying OTP secret
added 1 character in body
Sep
3
revised Complexity of verifying OTP secret
update re base 10
Sep
3
comment Complexity of verifying OTP secret
I would also note that the digits need not strictly be base-10 integers, but that is one conventionally accepted practice for HCI/UX reasons. A more generic OTP napkin calculation would be ceiling(cardinality(s) / cardinality(o)) where o is the output. It just so happens that by the above convention the o is 6 base-10 digits, so there are a million permutations (cardinality) of output. I hope that clarifies.
Sep
3
revised Complexity of verifying OTP secret
clarified base-10
Sep
3
comment Complexity of verifying OTP secret
Sorry for any confusion @e-sushi. The digits is base-10 digits, as it is the human-legible component of the OTP to be provided to and entered by the user. You can see this from the linked (or any canonical) OTP code, but I will clarify the question in any case. Please let me know if it remains unclear or there are other potential improvements you see.
Sep
3
asked Complexity of verifying OTP secret
May
7
revised Injecting salt into PyCrypto KDF - useful?
fixed formatting... it was using LaTeX!
May
7
awarded  Scholar
May
7
accepted Injecting salt into PyCrypto KDF - useful?
May
7
revised Injecting salt into PyCrypto KDF - useful?
added links to related questions and quoted claim regarding salt + hash
May
7
comment Injecting salt into PyCrypto KDF - useful?
Thanks @D.W. - I had a quick look for them when I posted the question (on a tablet), but I can't find them now - I'll keep looking and post if I come across them. I suspect it may have originally come from a resource (for example) that suggests putting the salt before or after the password being hashed.
May
7
revised Injecting salt into PyCrypto KDF - useful?
Added ref to Armin's PBKDF2
May
7
asked Injecting salt into PyCrypto KDF - useful?
Dec
17
comment Cracking WWII-era codes - code found on a pigeon's leg in Surrey
An article on BBC indicates that someone may have successfully cracked the code.
Dec
17
comment Cracking WWII-era codes - code found on a pigeon's leg in Surrey
As others will undoubtedly point out, if we do not know what the message says (or contains) we have no way of proving or even indicating what the decrypted message is. It is likely that we will have a set of statistically probable decryptions, but that it will remain impossible to verify correctness.
Nov
24
awarded  Student
Nov
24
awarded  Editor