Skip to main content
New
Stack Overflow Jobs powered by Indeed: A job site that puts thousands of tech jobs at your fingertips (U.S. only). Search jobs
Dennis's user avatar
Dennis's user avatar
Dennis's user avatar
Dennis
  • Member for 12 years, 7 months
  • Last seen more than 4 years ago
25 votes
Accepted

Difference between Rijndael 128 / 256 blocksize implementations? (and impact of block size in general)

25 votes
Accepted

Reason why “XOR” is a linear operation, but ordinary “addition” isn’t?

14 votes
Accepted

security of Felix cipher

11 votes
Accepted

Why is h(m||k) insecure?

11 votes

Is it feasible to build an index of prime factors?

11 votes

Creating your own encryption and decryption algorithm

11 votes

Why is SHA-3 a Sponge function?

10 votes

Can one generalize the Diffie-Hellman key exchange to three or more parties?

10 votes

Creating a small number from a random octet string

8 votes
Accepted

True 128bit secured password length?

6 votes
Accepted

Benefit of combining classical substitution ciphers with modern cryptography

6 votes

AES Key Length vs Block Length

5 votes
Accepted

Is there a hash function with 2048bit output?

5 votes

Do known-plaintext attacks exist for public key encryption?

5 votes
Accepted

Why do these Python XTEA implementations require different deltas?

4 votes
Accepted

Brute Force on 3DES with Reduced Keyspace and Unknown IV

4 votes

Deterministically combine more than one source of entropy

4 votes

Getting the encryption method and key from the encrypted data and the raw data

4 votes

Reason(s) for using a KDF for encryption keys

4 votes

Dropbox Password security

2 votes

What would a backdoor in symmetric key cipher look like?

1 vote

How can rainbow tables be used for a dictionary attack?

1 vote

How can I map arbitrary group elements to unique integers without using Hash functions?

1 vote

How does using salt reduce rainbow table attack?

1 vote

Scrypt's maximum strength to increase entropy of lame passwords