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Dec
7
reviewed Approve Definition of “pepper” in hash functions
Dec
7
reviewed No Action Needed Stream cipher with Diffie-Hellman and Cryptographic Hash Function?
Dec
7
comment Block size vs key size confusion
@shin: you're looking at the concept of Unicity Distance; how much ciphertext (and in this case exact plaintext) you need before the key becomes unique; again, it is typically $k+\epsilon$ bits (where $k$ is the number of unknown bits; that would include key bits, and any implicit IV bits). On the other hand, this analysis rather assumes that the attacker can step through all $2^k$ possibilities (or has another short cut); for ciphers that we use in practice, this is believed to be infeasible.
Dec
6
reviewed Close Stream cipher with Diffie-Hellman and Cryptographic Hash Function?
Dec
6
answered Block size vs key size confusion
Dec
6
answered What is the functional role of CKY-I and CKY-R in ISAKMP (IKEv1)?
Dec
4
reviewed Close What approach is used here?
Dec
4
comment Generating an RSA public key certificate (.pem) from only a modulus
An RSA public key needs to specify the public exponent; what would you use? Would you just assume a common value (say, 65537), and just be willing to have the certificate not work if the value that the key generated selected was anything else?
Dec
3
reviewed Close What cipher algorithm is this routine using?
Dec
3
reviewed Leave Closed How Brittle Are LCG-Cracking Techniques?
Dec
3
reviewed No Action Needed I don't care about replay attacks. What should I do with the nonce in nacl?
Dec
3
reviewed Close How to compare security parameters of different schemes (Sign-Encrypt, Encrypt-Sign, etc)?
Dec
3
answered What cipher algorithm is this routine using?
Dec
3
reviewed Leave Closed Reversing a Psuedo Crytographic Hash
Dec
3
reviewed Delete Does Ed25519 support cryptographic threshold signatures?
Dec
3
reviewed Approve Is double hashing collision resistant?
Dec
3
reviewed Approve Collision in Merkle–Damgård without a collision in compression function
Dec
3
reviewed Close RSA Cryptosytsem, choosing $e$
Dec
3
reviewed Close suitable programming language for cryptography algorithms
Dec
3
awarded  symmetric