D.W.'s user avatar
D.W.'s user avatar
D.W.'s user avatar
D.W.
  • Member for 11 years, 4 months
  • Last seen this week
109 votes
Accepted

Should we sign-then-encrypt, or encrypt-then-sign?

61 votes
Accepted

Why does nobody use (or break) the Camellia Cipher?

55 votes
Accepted

One Encryption, Many Decryption Keys

51 votes
Accepted

Explaining weakness of Dual EC DRBG to wider audience?

45 votes

Now that quantum computers have been out for a while, has RSA been cracked?

41 votes
Accepted

What are the differences Between “White-Box Cryptography” and “Code Obfuscation”?

40 votes

Is AES-256 weaker than 192 and 128 bit versions?

38 votes
Accepted

Blum Blum Shub vs. AES-CTR or other CSPRNGs

35 votes

Why does key generation take an input $1^k$, and how do I represent it in practice?

31 votes

Purpose of outer key in HMAC

28 votes

repeating-key xor and hamming distance

28 votes
Accepted

What security authorities and standards reject $e=3$ in RSA, when, and with what rationale?

20 votes

Time Capsule cryptography?

19 votes

Should I use ECB or CBC encryption mode for my block cipher?

19 votes
Accepted

Stopping timing attacks on AES: Why is it important to prevent the OS from interrupting the AES computation?

19 votes
Accepted

Is the inverse of a secure PRP also a secure PRP?

19 votes
Accepted

What stops the Multiply-With-Carry RNG from being a Cryptographically Secure PRNG?

18 votes

Are there hash algorithms with variable length output?

17 votes

What is the most practical fully homomorphic cryptosystem?

17 votes

Why is OCB-AES mode not becoming a standard for authenticated encryption?

17 votes
Accepted

How to derive two keys from one password

17 votes

How to do a literature search

14 votes
Accepted

Deriving Keys for Symmetric Encryption and Authentication

14 votes
Accepted

How broken is a xor of two LCGs?

14 votes
Accepted

Storing Credentials for a Third Party

13 votes
Accepted

Cryptographically secure keyed rolling hash function

13 votes

Pen-and-paper one-way function for externally-anonymous survey

13 votes
Accepted

Are picture files "random enough" to be usable as a one-time pad?

12 votes
Accepted

A timestamping authority (digital notary)

12 votes

Finding a keylength in a repeating key XOR cipher

1
2 3 4 5
17