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lxgr
  • Member for 11 years, 10 months
  • Last seen this week
18 votes
1 answer
21k views

How does a birthday attack on a hashing algorithm work?

15 votes
2 answers
3k views

Are cryptographic hash functions perfect hash functions?

12 votes
1 answer
4k views

What signature schemes allow recovering the public key from a signature?

11 votes
2 answers
551 views

Is RC4 a problem for password-based authentication?

7 votes
1 answer
888 views

Does TLS use RC4-drop[n]?

7 votes
3 answers
1k views

Why is a MAC needed with CBC?

6 votes
2 answers
636 views

Is semantic security important in a hybrid cryptosystem?

6 votes
1 answer
348 views

What exactly could be accomplished with a backdoor in Dual_EC_DRBG?

5 votes
2 answers
574 views

Why is "multiplying" $g^x$ and $g^y$ not possible?

5 votes
2 answers
1k views

Relation between key size and PRNG state size

5 votes
2 answers
183 views

Can CBC-encrypted files be modified in-place?

4 votes
2 answers
554 views

Can stream ciphers (usually) be "run backwards"?

3 votes
1 answer
510 views

Will non-ECC algorithms like RSA eventually become too inefficient?

3 votes
2 answers
2k views

Deniability of OTR messaging

2 votes
1 answer
394 views

What are the dangers of predictable (repeated) plaintext structures?

2 votes
2 answers
358 views

Name for identical operations for encryption and decryption

2 votes
2 answers
187 views

Is there a cryptographic primitive that allows "signature chaining"?

1 vote
1 answer
439 views

Why does deterministic ECDSA (per RFC 6979) include the private key in the generation of k?