poncho

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320 Posts

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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
Dec
28
 answered Can a nested block cipher avoid the meet in the middle attack by using a secret initialization vector for the inner encryption?
Dec
20
 answered Why the following attack in common modulus RSA works?
Dec
19
 answered How many bits of hash are realistically needed for key verification?
Dec
18
 answered Can one build a one-way function from AES?
Dec
14
 answered ANSI X9.31 standards for generating random numbers
Dec
12
 answered Can one have an authentic, but repudiable, message without a previously shared secret?
Dec
9
 answered Why is OCB-AES mode not becoming a standard for authenticated encryption?
Dec
5
 answered Speeding up partially known plaintext preimage recovery attack on MD5
Dec
4
 answered In RSA encryption, does the value of e need to be random?
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