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Seth's user avatar
Seth's user avatar
Seth
  • Member for 12 years, 8 months
  • Last seen more than 5 years ago
3 votes

Why is the security level defined by $\log _{2} \inf \{ t_{i}/\varepsilon_{i} \mid i \in I \}$

5 votes
Accepted

Why is Min-entropy significant in cryptography?

1 vote

Generating random non-repeating numbers from a small group

5 votes

To understand a fact related to padding in MD5

4 votes

How is an epsilon of 1/1000 non-negligible?

5 votes
Accepted

Encrypt-Mix-Encrypt: Full Diffusion?

5 votes

Format preserving encryption FFX

1 vote
Accepted

What is the benefit of applying the tweak a second time using XTS?

17 votes
Accepted

Does using modulo (%) affect quality of randomness?

2 votes
Accepted

Basic question about design of program with data encryption

7 votes

Authenticating Very Short (Sub-Block) Data

4 votes

Is it insecure to encrypt the wrong plaintext?

4 votes
Accepted

Pseudorandom permutations on domains of arbitrary (i.e. not a power of 2) size

22 votes
Accepted

Why do "nothing up my sleeve numbers" have low entropy?

4 votes
Accepted

Is it possible to construct a secure block cipher of size $2n$ given a secure block cipher of size $n$?

6 votes

modulo operations in crypto algorithms

2 votes

How do I produce a stream of secure random numbers from AES-Counter mode?

8 votes

How vulnerable is the C rand() in public cryptography protocols?

4 votes

Is this a pseudo random function (PRF)? F(k,x) = f(k,x) - f(k,x-1)

4 votes
Accepted

Unpredictability vs randomness

0 votes

Should tweak be unique per message?

6 votes
Accepted

Deterministically combine more than one source of entropy

2 votes

Game traffic encryption AES CTR + HMAC

6 votes

what are the uses of tweaks in block ciphers?

12 votes
Accepted

Difference between salted hash and keyed hashing?

18 votes

What is the ideal cipher model?

15 votes
Accepted

AES CTR with similar IVs and same key

8 votes

Concerns about using a hash to determine if specific input data has already been encrypted

3 votes

Encrypted counter as IV in CBC mode encryption using same key

5 votes
Accepted

Encrypt-then-MAC paradigm