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Cryptography

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Awarded 758 times.
What does the work "An Efficient Quantum Algorithm for Lattice Problems Achieving Subexponential Approximation Factor" mean?
Awarded Sep 22, 2021 at 13:25
Attacking 2DES efficiently
Awarded Sep 16, 2021 at 20:45
Is it possible to get an RSA encryption key by comparing the unencrypted and encrypted file?
Awarded Sep 15, 2021 at 11:10
Is it possible to recover an RSA modulus from its signatures?
Awarded Aug 28, 2021 at 11:17
What is the "Random Oracle Model" and why is it controversial?
Awarded Aug 25, 2021 at 7:07
Reasons for Chinese SM2 Digital Signature Algorithm
Awarded Aug 24, 2021 at 19:10
ECDSA Compressed public key point back to uncompressed public key point
Awarded Aug 19, 2021 at 22:35
Common Classical Ciphers
Awarded Aug 13, 2021 at 3:02
How secure would HMAC-SHA3 be?
Awarded Aug 5, 2021 at 17:26
Can Elgamal be made additively homomorphic and how could it be used for E-voting?
Awarded Jul 29, 2021 at 17:25
Cracking RSA (or other algorithms) manually by a savant
Awarded Jul 24, 2021 at 12:41
Why hash the message before signing it with RSA?
Awarded Jul 24, 2021 at 0:57
Finding where I am in a linear recurrence relation
Awarded Jul 20, 2021 at 7:51
Risk of appending secret salt to plaintext prior to RSA encryption?
Awarded Jul 12, 2021 at 14:08
Do the Syllae algorithm and Malaysian cipher from Rubicon exist?
Awarded Jul 12, 2021 at 4:20
Do Quantum Key Distribution and Physical Unclonable Functions combine, and how?
Awarded Jul 3, 2021 at 23:10
How exactly was the finalist chosen in the NIST AES competition?
Awarded Jun 29, 2021 at 5:11
AES-CBC decrypts to wrong output?
Awarded Jun 16, 2021 at 7:20
What are the constraints on using GCM with a tag size of 96 and 128 bits?
Awarded Jun 11, 2021 at 10:51
Conditions for Perfect Secrecy with the Vigenere Cipher
Awarded Jun 10, 2021 at 15:05
Decrypting Ciphertext with partial Key Fragment using LFSR and Berlekamp-Massey
Awarded Jun 1, 2021 at 18:16
How to choose between AES-CCM and AES-GCM for storage volume encryption
Awarded May 28, 2021 at 16:33
Library to find an addition chain for a large number? [closed]
Awarded May 25, 2021 at 12:16
Set membership check between untrusted parties
Awarded May 24, 2021 at 2:56
Benefits of functional programming languages
Awarded May 23, 2021 at 9:27
Should we MAC-then-encrypt or encrypt-then-MAC?
Awarded May 21, 2021 at 7:07
Is it computationaly feasible to reverse MD5SUM?
Awarded May 18, 2021 at 9:51
Blum Blum Shub vs. AES-CTR or other CSPRNGs
Awarded May 17, 2021 at 9:52
Explaining weakness of Dual EC DRBG to wider audience?
Awarded May 17, 2021 at 1:46
What does the expression $1^n$ mean as a function argument?
Awarded May 17, 2021 at 0:31
Would the ability to efficiently find Discrete Logs have any impact on the security of RSA?
Awarded May 13, 2021 at 15:43
Can I use a key-derivation-function as the hash function H in SRP?
Awarded May 10, 2021 at 9:26
Verbatim of early work on public-key cryptography?
Awarded Apr 21, 2021 at 1:12
Is a 4DES or 5DES system possible?
Awarded Apr 21, 2021 at 1:12
Ideal way to profile/performance-measure cipher implementations
Awarded Apr 13, 2021 at 19:47
How should I calculate the entropy of a password?
Awarded Apr 10, 2021 at 2:17
Is this protocol for masking DB ids sound?
Awarded Mar 31, 2021 at 18:10
Modular equation system
Awarded Mar 24, 2021 at 15:05
Why do we need Euler's totient function $\varphi(N)$ in RSA?
Awarded Mar 24, 2021 at 15:05
Why are password database breaches bad if cryptographic hashes can't be reversed?
Awarded Mar 24, 2021 at 15:05
How to evaluate chi squared result?
Awarded Mar 18, 2021 at 18:27
OpenPGP/X.509 bridge: how to verify public key?
Awarded Mar 18, 2021 at 11:28
Probability of Repeated Encrypted Block In Output Feedback (OFB) Mode
Awarded Mar 17, 2021 at 22:25
Why exactly Blowfish max key length is 448
Awarded Mar 17, 2021 at 3:55
Does Schnorr's 2021 factoring method show that the RSA cryptosystem is not secure?
Awarded Mar 8, 2021 at 18:25
Does Schnorr's 2021 factoring method show that the RSA cryptosystem is not secure?
Awarded Mar 7, 2021 at 10:07
Does Schnorr's 2021 factoring method show that the RSA cryptosystem is not secure?
Awarded Mar 4, 2021 at 13:07
Does Schnorr's 2021 factoring method show that the RSA cryptosystem is not secure?
Awarded Mar 4, 2021 at 7:01
How to solve this ECDLP?
Awarded Feb 26, 2021 at 8:50
Is there a hash function which has no collisions?
Awarded Feb 21, 2021 at 18:31
What is a hard-core predicate?
Awarded Feb 20, 2021 at 22:06
Why is plain-hash-then-encrypt not a secure MAC?
Awarded Feb 12, 2021 at 12:10
Bit Flipping Attack on CBC Mode
Awarded Feb 11, 2021 at 16:35
Given enough RSA signature values, is it possible to determine the public key value?
Awarded Feb 9, 2021 at 13:00
Is it possible to recover an RSA modulus from its signatures?
Awarded Feb 9, 2021 at 1:05
Is 128-bit security still considered strong in 2020, within the context of both ECC Asym & Sym ciphers
Awarded Feb 8, 2021 at 1:41
Multiplicative inverse in $\operatorname{GF}(2^8)$?
Awarded Feb 4, 2021 at 7:04
"Weaknesses" in SHA-256d?
Awarded Feb 2, 2021 at 16:05
Multiplicative inverse in $\operatorname{GF}(2^8)$?
Awarded Jan 22, 2021 at 9:06
Should we MAC-then-encrypt or encrypt-then-MAC?
Awarded Jan 16, 2021 at 13:01
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