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bk2204
  • Member for 3 years, 3 months
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21 votes
Accepted

Why is mod calculation necessary in a one time pad encryption?

19 votes
Accepted

Do I need to sanitize user input to scrypt, or to PBKDF's in general?

13 votes
Accepted

Why Ed25519 encodes y-coordinates rather than x-coordinates

12 votes
Accepted

Would sending audio fragments over a phone call be considered a form of cryptology?

11 votes
Accepted

Is it possible to create a pseudo-One Time Pad by using a key smaller than the plaintext?

9 votes
Accepted

What is better source of random bytes: Yubikey or /dev/random (or both)?

7 votes

How bad are human-generated random numbers really (One Time Pad)?

7 votes

Is double SHA-256 the best choice for Bitcoin?

7 votes
Accepted

Why do people use protocols like PGP, when TLS already exists?

6 votes
Accepted

Converting a 32-bit ARX cipher to a 64-bit one, should the rounds be increased?

5 votes

What would be the benefit of using a Stream Cipher which achieves encryption performance of 0.01 cpb using 1 CPU thread?

5 votes
Accepted

What is the rationale for including addition in SHA-256?

5 votes
Accepted

Is sha3 a one-way funtion

4 votes

Is Argon2 based on BLAKE2b or is it only using the BLAKE2b at the end?

4 votes

Is MAC unnecessary for client side encryption?

4 votes

64 bit key size Diffie Hellman

4 votes
Accepted

Can future time-based keys be deduced from a previous key?

4 votes
Accepted

How to use cryptography to protect video from forgery?

4 votes

What makes Argon2 also slow?

4 votes
Accepted

Why is DUKPT TDES allowed by PCI negating NIST

4 votes
Accepted

Random based on video input, why isn't there some predictability

4 votes
Accepted

Example situation where an authentication tag can prevent an attack?

3 votes
Accepted

What does "gpg: RSA/AES256.CFB encrypted for" mean?

3 votes
Accepted

Does adding a known text to an input decrease hash security?

3 votes
Accepted

How to reverse engineer Salt from password, iterations, and key?

3 votes

Why Elliptic Curve Cryptography protocols depend on fixed curves?

3 votes

Which Diffie-Hellman Groups does TLS 1.3 support? And should we use TLS 1.3 as a guide?

3 votes

RC4-40 with IV (32-bit) setup

3 votes

Why there are still no keys longer than 256 bit?

3 votes

What does it mean that DES algorithm was meant to run on hardware?