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Jun
9
answered How can one detect if a hash function doesn't have a full image?
Jun
6
asked Obfuscate an “I'll reveal if you do” function
Jun
3
answered Theory for pre-paid debit card: card-to-card transfer
Jun
2
answered Use additional keys to thwart key compromise?
Jun
2
answered Encryption of log files
Jun
2
answered Update to “Cryptographic Right Answers”
Jun
2
answered Reductionist proofs of decisional problems to computational
May
31
answered Security of the iterated Hill Cipher
May
31
answered Creating a license system based on asymmetric encryption (RSA or ECDSA)
May
22
answered Prefix property for variable length pseudo-random generators
May
22
answered Which tamper-protection algorithm provides the shortest output?
May
22
answered Cryptographic pseudo-random generation of address subsets
May
12
answered Hash collision resistance of $\mathcal H^\prime(m) = \mathcal H(\mathcal H(m)|m)$
May
12
answered Are hash functions chaotic?
May
9
answered Cryptographically secure keyed rolling hash function
May
1
answered reverse an identicon to its source string
May
1
answered Is the CONF key sharing Problem equivalent to discrete log problem?
Apr
29
answered Can I make a PRNG that is secure even when state can be modified by user?
Apr
28
answered Pseudocode for constant time modular exponentiation
Apr
25
answered Multiple-prime RSA; how many primes can I use, for a 2048-bit modulus?