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Apr
19
answered Generating random non-repeating numbers from a small group
Jan
11
answered To understand a fact related to padding in MD5
Jun
11
answered How is an epsilon of 1/1000 non-negligible?
May
23
answered Encrypt-Mix-Encrypt: Full Diffusion?
May
2
answered Format preserving encryption FFX
Mar
14
answered What is the benefit of applying the tweak a second time using XTS?
Feb
4
answered Does using modulo (%) affect quality of randomness?
Oct
2
asked Has there been any cryptanalysis of AES under a non-uniformly distributed key?
Sep
24
answered Basic question about design of program with data encryption
Sep
18
answered Authenticating Very Short (Sub-Block) Data
Aug
7
answered Is it insecure to encrypt the wrong plaintext?
Jul
3
answered Pseudorandom permutations on domains of arbitrary (i.e. not a power of 2) size
May
16
answered Why do “nothing up my sleeve numbers” have low entropy?
May
15
answered Is it possible to construct a secure block cipher of size $2n$ given a secure block cipher of size $n$?
May
15
answered modulo operations in crypto algorithms
May
4
answered How do I produce a stream of secure random numbers from AES-Counter mode?
Apr
18
answered How vulnerable is the C rand() in public cryptography protocols?
Mar
11
answered Is this a pseudo random function (PRF)? F(k,x) = f(k,x) - f(k,x-1)
Mar
6
answered Unpredictability vs randomness
Feb
11
answered Should tweak be unique per message?