Cryptography

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Awarded 567 times.
What is a cryptographic "salt"?
Awarded Jun 9, 2014 at 15:52
Taking advantage of one-time pad key reuse?
Awarded Jun 1, 2014 at 17:38
How does one attack a two-time pad (i.e. one time pad with key reuse)?
Awarded May 17, 2014 at 19:18
Google is using RC4, but isn't RC4 considered unsafe?
Awarded Mar 25, 2014 at 23:39
Should we trust the NIST-recommended ECC parameters?
Awarded Dec 24, 2013 at 22:09
How much would it cost in U.S. dollars to brute-force a 256-bit key in a year?
Awarded Nov 26, 2013 at 23:12
Explaining weakness of Dual EC DRBG to wider audience?
Awarded Nov 24, 2013 at 15:04
Is AES-256 weaker than 192 and 128 bit versions?
Awarded Aug 14, 2013 at 11:37
Technical feasibility of decrypting https by replacing the computer's PRNG
Awarded Jul 16, 2013 at 3:57
Is modern encryption needlessly complicated?
Awarded Jul 6, 2013 at 19:18
Why is elliptic curve cryptography not widely used, compared to RSA?
Awarded Jun 10, 2013 at 11:01
Is Convergent Encryption really secure?
Awarded May 12, 2013 at 16:11
Should we MAC-then-encrypt or encrypt-then-MAC?
Awarded Apr 27, 2013 at 18:40
How is CipherCloud doing homomorphic encryption?
Awarded Apr 21, 2013 at 23:32
Guarding against cryptanalytic breakthroughs: combining multiple hash functions
Awarded Apr 11, 2013 at 8:45
Cryptanalysis to reverse engineer a hash?
Awarded Apr 8, 2013 at 8:00
What are the practical differences between 256-bit, 192-bit, and 128-bit AES encryption?
Awarded Mar 12, 2013 at 4:17
How big an RSA key is considered secure today?
Awarded Mar 6, 2013 at 22:14
Best way to reduce chance of hash collisions: Multiple hashes, or larger hash?
Awarded Dec 22, 2012 at 4:27
Time Capsule cryptography?
Awarded Dec 4, 2012 at 9:36
What are the benefits of the two permutation tables in DES?
Awarded Nov 15, 2012 at 21:36
What is the "Random Oracle Model" and why is it controversial?
Awarded Aug 16, 2012 at 20:35
Why does nobody use (or break) the Camellia Cipher?
Awarded Aug 11, 2012 at 16:25
How much would it cost in U.S. dollars to brute-force a 256-bit key in a year?
Awarded Jul 17, 2012 at 14:54
Is modern encryption needlessly complicated?
Awarded Mar 24, 2012 at 13:50
Is modern encryption needlessly complicated?
Awarded Nov 24, 2011 at 9:55
What makes a hash function good for password hashing?
Awarded Nov 15, 2011 at 22:28
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