poncho

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309 Posts

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Feb
4
 answered Source for examples with broken cryptography
Feb
4
 answered Is there a problem with constructing a CSPRNG using MD5 or SHA1?
Feb
3
 answered Zero-knowledge identification of the majority commitment
Feb
3
 answered AES CBC with fixed or predictable IV, what are the risks?
Jan
30
 answered Why is feed-forward mechanism used in hash functions?
Jan
28
 answered How is the x coordinate of a “point at infinity” encoded in a Secp256k1 signature?
Jan
26
 answered How to find an element of high-order in an RSA group?
Jan
23
 answered In the Paillier cryptosystem, is there a method to judge whether an encrypted number is less than 0 (without the private key)
Jan
22
 answered Does it take brute force to find a pair of plaintext and ciphertext that each follow a certain condition, given an AES encryption key?
Jan
21
 answered Security for IV in AES-GCM mode
Jan
21
 answered Why work in a subgroup QR(n) of an RSA group $Z^*_n$?
Jan
20
 answered Finding a collision for a hash function
Jan
11
 answered Is the One Time Pad (OTP) considered a cryptographic hash function?
Jan
9
 answered How can we determine if two discrete logarithms are equal?
Jan
7
 answered What happens if an RSA key pair has identical public and private exponents?
Jan
7
 answered Using CBC with a fixed IV and a random first plaintext block
Jan
7
 answered Break double encryption
Jan
7
 answered Why can't I break ElGamal encryption by brute-forcing the secret exponent?
Jan
3
 answered What's the strategy for future directions in cryptography? Bigger numbers/faster searching, or new methods, say, of factoring?
Jan
2
 answered Hill cipher, unknown letter value
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