Puzzle: Cracking the safe
122259
Fastest way to try all passwords
14827
RSA: Fast factorization of N if d and e are known
133935
Challenges with Key with Gaps?
88031
Possible ways to crack simple hand ciphers?
27598
Can you create a strong blockcipher with small blocksize, given a strong blockcipher of conventional blocksize?
40397
P = NP and current cryptographic systems
3582
Secure Password Hashing
133269
Symmetric encryption construction (meet-in-the-middle attack)
147556
Express logic puzzles with proposition calculus notation
79642
Is there a secure cryptosystem that can be performed mentally?
58472
Fiat-Shamir transform: reliance on hash input by interactive proof
111491
Affine Cipher Cryptanalysis
76992
What check is required to break open a chest?
55689
Why are the Davies-Meyer and Miyaguchi-Preneel constructions secure?
156248
Monty Hall Problem confusion
124935
AES-CBC ciphertext manipulation with known IV and plaintext!
109515
Solving word search puzzles