Cryptography

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earned this badge 83 times.
Purpose of DES parity bits
Awarded Oct 25 at 7:50
Algorithm to factorize $N$ given $N$, $e$, $d$
Awarded Jul 23 at 17:52
In what way is XXTEA really vulnerable?
Awarded Jul 7 at 13:47
The effect of truncated hash on entropy
Awarded Jul 4 at 12:57
how to use these hash functions in python?
Awarded May 30 at 13:02
Reversing a Psuedo Crytographic Hash
Awarded May 25 at 13:05
How to perform frequency analysis of a substitution cipher using a Base64 alphabet
Awarded May 16 at 15:28
Does collision resistance imply (or not) second-preimage resistance?
Awarded Apr 5 at 22:50
Who first published the interest of more than two prime factors in RSA?
Awarded Feb 24 at 14:31
Small Prime Difference in RSA
Awarded Feb 17 at 4:46
DES: how does Richard Outerbridge's Initial Permutation operate?
Awarded Feb 7 at 9:20
Multiple-prime RSA; how many primes can I use, for a 2048-bit modulus?
Awarded Jan 9 at 20:52
Estimating bits of entropy
Awarded Dec 16, 2022 at 1:42
Statistical properties of hash functions when calculating modulo
Awarded Dec 9, 2022 at 10:04
WAV file steganography
Awarded Nov 29, 2022 at 15:19
Security of a security protocol for key exchange, using symmetric-key cryptography
Awarded Nov 24, 2022 at 18:37
What is the probability of attacking SHA1 used in RSA signature with small exponent?
Awarded Nov 22, 2022 at 23:03
Meet-in-the-Middle attack on 3DES
Awarded Oct 18, 2022 at 14:37
Largest integer factored by Shor's algorithm?
Awarded Jul 18, 2022 at 9:27
Blum Blum Shub vs. AES-CTR or other CSPRNGs
Awarded Jun 16, 2022 at 16:04
Example of a PRP that is not a strong PRP
Awarded Jan 14, 2022 at 13:57
In which situations is a length-extension attack a problem?
Awarded Nov 14, 2021 at 17:20
Why does DES use exactly 16 rounds?
Awarded Oct 21, 2021 at 7:12
Attacking 2DES efficiently
Awarded Sep 16, 2021 at 20:45
Is it possible to recover an RSA modulus from its signatures?
Awarded Aug 28, 2021 at 11:17
Finding where I am in a linear recurrence relation
Awarded Jul 20, 2021 at 7:51
Verbatim of early work on public-key cryptography?
Awarded Apr 21, 2021 at 1:12
Does Schnorr's 2021 factoring method show that the RSA cryptosystem is not secure?
Awarded Mar 4, 2021 at 7:01
"Weaknesses" in SHA-256d?
Awarded Feb 2, 2021 at 16:05
Hill cipher key space
Awarded Jan 11, 2021 at 15:50
Is there a feasible method by which NIST ECC curves over prime fields could be intentionally rigged?
Awarded Nov 26, 2020 at 0:57
Predicting Java's PRNG using partial output
Awarded Nov 24, 2020 at 14:34
What are the odds of collisions for a hash function with 256-bit output?
Awarded Oct 8, 2020 at 22:06
Why is Triple DES not vulnerable to meet in the middle attacks?
Awarded Oct 1, 2020 at 18:31
RSA with probable primes
Awarded Sep 16, 2020 at 23:51
What is a cyclic group of prime order $q$ such that the DLP is hard?
Awarded Sep 12, 2020 at 12:55
Meet-in-the-middle with checking complexity
Awarded Sep 5, 2020 at 5:56
Elliptic curve parameter generation
Awarded Jul 22, 2020 at 19:01
Diffie-Hellman Parameter Check: when g = 2, must p ≡ 11 (mod 24)?
Awarded May 26, 2020 at 10:36
With HMAC, can an attacker recover the key, given many known plaintext/tag pairs?
Awarded Apr 28, 2020 at 1:19
Find private exponent in RSA
Awarded Apr 18, 2020 at 5:31
Cryptographic system with double keys with reversible order
Awarded Apr 14, 2020 at 22:50
Are AES-256's related-key weaknesses exploitable if it is used to build a hash?
Awarded Jan 21, 2020 at 22:45
What is SHA-256 in Conjunctive Normal Form?
Awarded Jan 2, 2020 at 9:10
How big an RSA key is considered secure today?
Awarded Dec 13, 2019 at 18:50
Is there a secure cryptosystem that can be performed mentally?
Awarded Dec 12, 2019 at 22:20
Predicting values from a Linear Congruential Generator
Awarded Dec 12, 2019 at 22:20
How does Python's pycrypto library generate primes?
Awarded Dec 12, 2019 at 22:20
Why is plain-hash-then-encrypt not a secure MAC?
Awarded Dec 12, 2019 at 22:20
How random are commercial TRNGS
Awarded Dec 12, 2019 at 22:20
Are there some problems to use pseudo-random number generator in Smart Card?
Awarded Dec 12, 2019 at 22:20
Interpretation of the results of NIST (p)NRG suite
Awarded Dec 12, 2019 at 22:20
Time Capsule cryptography?
Awarded Dec 12, 2019 at 22:20
How can I figure out a hash algorithm?
Awarded Dec 12, 2019 at 22:20
RSA encryption and decryption with multiple prime modulus using CRT
Awarded Dec 12, 2019 at 22:20
Concatenation of two strong hashes may have striking weakness
Awarded Dec 12, 2019 at 22:20
Is knowing the private key of RSA equivalent to the factorization of $N$?
Awarded Dec 12, 2019 at 22:20
Why does the padding in Merkle–Damgård hash functions like MD5 contain the message length?
Awarded Dec 12, 2019 at 22:20
Is quantum key distribution safe against MITM attacks too?
Awarded Dec 12, 2019 at 22:20
Entropy when iterating cryptographic hash functions
Awarded Dec 12, 2019 at 22:20
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