129 reputation
5
bio website
location
age
visits member for 1 year, 7 months
seen Oct 2 at 17:19


Sep
24
awarded  Autobiographer
Sep
19
revised Why not the one-time pad with pseudo-number generator
Replaced with a link that doesn't require login
Sep
19
suggested approved edit on Why not the one-time pad with pseudo-number generator
Aug
18
awarded  Critic
Aug
16
comment MIT says: mathematical theory behind encryption is wrong. What are the consequences?
Out of ALL the answers, this is the only one that actually approaches the subject, and the only that successfully answers the question and successfully critique the original article. Thank you.
Aug
15
comment MIT says: mathematical theory behind encryption is wrong. What are the consequences?
This in no way should be the accepted the answer.
Aug
7
awarded  Supporter
May
16
awarded  Teacher
May
16
comment SHA-1:Is there any mathematical result that gives us the minimum number of 1's in a 160-bit SHA-1 hash output?
@D.W. Okay, with the help of Antony Vennard, I think the answer is a bit better now.
May
16
awarded  Editor
May
16
revised SHA-1:Is there any mathematical result that gives us the minimum number of 1's in a 160-bit SHA-1 hash output?
deleted 2 characters in body
May
16
comment SHA-1:Is there any mathematical result that gives us the minimum number of 1's in a 160-bit SHA-1 hash output?
@D.W. I have looked at it and thought about it, but that's all I was able to figure out. Probability of one coin being head is 0.5, two coins being heads is 0.5*0.5, 3 coins is 0.5*0.5*0.5 so 128 coins is 0.5^128, and then we have a lot of combinations to for these coins to occur which is Comb(128, 160), then we multiply the two numbers. Since you think it's wrong, please help know what is right, a little hint would be a;right as well.
May
16
comment SHA-1:Is there any mathematical result that gives us the minimum number of 1's in a 160-bit SHA-1 hash output?
@D.W. Yeah, I kind of thought so, it's a bit beyond me. Please, edit the question to correct the "formula", we'd all learn something.
May
15
answered SHA-1:Is there any mathematical result that gives us the minimum number of 1's in a 160-bit SHA-1 hash output?