Paŭlo Ebermann's user avatar
Paŭlo Ebermann's user avatar
Paŭlo Ebermann's user avatar
Paŭlo Ebermann
  • Member for 12 years, 8 months
  • Last seen this week
5 votes

Is this how padding can work?

4 votes

Is it possible to break a hash-based block cipher?

4 votes
Accepted

How does using salt reduce rainbow table attack?

4 votes
Accepted

Key derivation from a random seed

4 votes

Can I save space for short messages by using encryption with private key instead of a signature?

4 votes

Finding hash almost-collisions

4 votes
Accepted

Can I construct a feasible stream cipher out of HMAC and a secure hash algorithm?

4 votes

Reversing SHA1 (don't know the correct term)

4 votes

Encryption schemes and pseudorandom permutations

4 votes

Security of very simple XOR with random?

4 votes

SHA1 multipart calculation

4 votes
Accepted

Derived Shared Key vs Distinct Keys?

4 votes
Accepted

Is a RSA-signature of some identifying data a safe way to implement a license key?

4 votes
Accepted

Is there a known vulnerability when using identical key and salt with PBKDF2?

4 votes

How are timestamps verified?

4 votes

Why do we need asymmetric algorithms for key exchange?

4 votes

Is it possible to distinguish a securely-encrypted ciphertext from random noise?

4 votes

Counter mode secure hash algorithm

4 votes
Accepted

What is the correct value for "certainty" in RSA key pair generation?

4 votes

How can I do a brute force (ciphertext only) attack on an CBC-encrypted message?

4 votes
Accepted

How to authenticate over open channel?

4 votes
Accepted

ID-Secret Scheme

4 votes

How can two different passphrases unlock the same content?

4 votes
Accepted

KeeLoq showing that decryption is indeed the inverse of encryption?

4 votes

Does MD5 generate 128 independent bits?

4 votes
Accepted

Generating non-repeating N-bit IVs, which are indistinguishable from randomness

4 votes

Decrypting DES with decrypted and encrypted data

3 votes

How does one measure the decrease in security, if any, of RC4 when mapping to a specific range of values?

3 votes

Academic papers on ECDSA security

3 votes

Using a mono-alphabetic substitution cipher with a different language per word

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