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Nov
18
answered Using a SHA512 hash to encrypt data
Nov
18
answered Is it OK to use a secret IV as key when creating keyed MD5 checksum for fixed-size data?
Nov
17
answered Are all encryption tools made equal?
Nov
16
answered Prevent replay attack without storage
Nov
9
answered Can e = 2 be used in unpadded RSA?
Oct
15
answered Deciphering “easy” ciphers without hints
Oct
13
answered How hard to solve the given mod problem
Sep
7
answered How To prove Any Change to $v=a\cdot y+b$ maks $y=(a)^{−1}\cdot (v−b)$ Uni. random value
Aug
26
answered What is matrix branching program?
Jul
30
answered For $p=23$, $g=2$, $q=11$ you are given the signature $(18,3)$ in the message $m=2$. Construct a signature in the message $m'=3$
Jul
29
answered What if the p and q used in keys generation of Pailler cryptosystem are composite?
Jul
27
answered Can a 1 byte difference in AES 128 bit keys make huge difference in output?
Jul
21
answered Are specially designed fonts sometimes used in cryptography?
Jul
13
answered Computational indistinguishability: are function parameters known?
Jul
7
answered Weakening of Pallier cryptosystem due to ciphertext equivalence and order in CryptDB
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