Cryptography
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Steven Hatzakis

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3 Circular hash collision where digest is pre-image: Could hash(a) = b, hash(b)=c, then hash(c)=a? Aug 9 '19
2 ChaCha20: is this a potentially safe way of using nonce derived from private key if the key/nonce pair is never reused, for a given plaintext? Sep 10 '19
2 Does XOR'ing a random number with its inverse reduce its security if the result is a palindrome? Aug 6 '19
2 What is the difference between a Vigenère cipher and a one time pad cipher? May 16 '19
1 Soft question: What are examples of beautiful proofs in cryptography? Jun 4 '19
1 Would dividing a random number by a constant “ruin” it? Aug 6 '19
1 Are all possible EC private keys valid? Aug 21 '19
1 How should I calculate the entropy of a password? Sep 24 '18
1 What is the possibility of collision of trailing 160 bits of Keccak_256, for any two differing public-keys as pre-images? Aug 21 '19
1 Is the following s-box more linear or more non-linear? Jul 1 '19
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