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Jun
19
answered What is “witness encryption”?
Jun
12
answered What's the principle to design the functionality under UC framework?
May
29
answered Can you identify this algorithm?
May
27
answered Why don’t all AES encryption tools produce the same key from the same password?
May
26
answered Sharing a secret key between many users
May
19
answered Do hand-based hash functions / MACs exist?
May
19
answered Is the hash function defined in this exercise collision-resistant?
May
8
answered How can I map arbitrary group elements to unique integers without using Hash functions?
May
8
answered Discrete logarithm over prime modulo: small input, large exponent, larger prime
May
5
answered Encrypt file name
Apr
30
answered Are well designed crypographic codes unbreakable? (NOT ciphers)
Apr
29
answered Integer encryption preserving equality
Apr
29
answered Zero knowledge / proof of knowledge sudoku solution
Apr
28
answered How to attack the Two Time Pad?
Apr
28
answered Is a padding oracle attack possible if data is only encrypted internally on a server (e.g. for storage)?
Apr
27
answered Bilinear map + commitment
Apr
27
answered Paillier cryptosystem preserve ordering of sums for two integer sequences
Apr
23
answered Why use randomness in digital signature algorithms?
Apr
22
answered Super-simple encryption of short strings
Apr
20
answered Different keys for clients but 1 key on server