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forest
  • Member for 6 years, 6 months
  • Last seen more than a month ago
  • Laniakea
42 votes
Accepted

Is one-time pad encryption vulnerable when near identical data is sent many times with different OTP?

29 votes
Accepted

When to use Argon2i vs Argon2d vs Argon2id?

21 votes
Accepted

Is lattice-based cryptography practical?

21 votes

Can one use a reversible hash algorithm as a compression function?

20 votes
Accepted

Must RSA exponent and modulus be odd

20 votes
Accepted

What is the point of digital signatures if confidentiality is violated?

18 votes
Accepted

What is a related key?

17 votes
Accepted

Difference between RC2, RC4, RC5 and RC6

17 votes
Accepted

Why expand keys? Why not rather generate a longer key?

15 votes
Accepted

Do PGP keys with expiration date set expiration date in Encrypted messages too?

15 votes
Accepted

Ed25519 cryptanalysis and backdoor?

14 votes
Accepted

How much security is gained from hiding the nonce?

13 votes
Accepted

Can SHA512 and SHA3-512 Make Same Collisions?

13 votes
Accepted

Should we run PBKDF2 for every plaintext to be protected or should we run PBKDF2 only once?

12 votes

How can you prove that a certain file was downloaded from a certain website?

11 votes
Accepted

What are best practices for long term storage (~20 years) of encrypted / sensitive files?

11 votes
Accepted

Can reduced-round ChaCha be used as non-cryptographic fast PRNG to produce output indistinguishable from random data?

10 votes
Accepted

Can Whirlpool take advantage of AES-NI?

10 votes
Accepted

Is it ok to transmit an IV as a custom HTTP header?

10 votes
Accepted

Why are there so many versions of the TEA block cipher?

10 votes
Accepted

Salsa20 Implementation: Sum of 2 Words with Carries Suppressed

10 votes

How to check a file was encrypted (really & correctly)

10 votes

Why does BitLocker not use RSA?

10 votes

Can a public key be same as private key?

10 votes

How many bits in the resultant hash will change, if the x bits are changed in its the original input?

10 votes
Accepted

Is there a 32 bit block cipher that is also a permutation over all 4bn elements?

9 votes

Why there are still no keys longer than 256 bit?

9 votes

Changing an Encryption scheme from AES to ChaCha20

9 votes

Notable Non-Western Cryptosystems that have been widely deployed?

9 votes

Can a zero nonce be safely used with AES-GCM if the key is random and never used again?

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