Cryptography

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First edit.
Awarded 7107 times.
Is chaos-based encryption legitimate?
Awarded yesterday
Finding initial key of Fibonacci LFSR knowing only polynomial and output stream-cipher
Awarded yesterday
Why is proof-by-reduction needed (for Elgamal proof of security, for example)?
Awarded yesterday
Paillier versus Lifted ElGamal for homomorphic addition for e-voting
Awarded Jul 30 at 5:07
(post deleted or otherwise unavailable)
Awarded Jul 29 at 14:11
What is the need for Diffie-Hellman key exchange when we have asymmetric encryption?
Awarded Jul 29 at 7:27
Managing master keys used in PBKDF2 and HMAC (store, rotate)
Awarded Jul 28 at 23:26
Can direct sums be used for deniable encryption?
Awarded Jul 27 at 19:05
Many near collisions but no full collision
Awarded Jul 27 at 14:26
Time Complexity of Exhaustive Search Algorithm
Awarded Jul 26 at 16:36
The Primal and Dual attack security estimates in Kyber round 3 specification
Awarded Jul 26 at 15:02
Cracking RSA (or other algorithms) manually by a savant
Awarded Jul 26 at 14:15
Why are singular “elliptic” curves bad for crypto?
Awarded Jul 26 at 12:41
Secret key expiration
Awarded Jul 26 at 10:06
Using hash of data as proof of integrity and preventing collision
Awarded Jul 26 at 8:03
Cracking $f(x) = Cx \oplus Dx$
Awarded Jul 26 at 5:33
Prove that ECB-mode of a block cipher is not EAV-secure
Awarded Jul 26 at 3:04
How is a “quantum safe” algorithm fundamentally different from the current “secure” crypto algorithms (pre-quantum)?
Awarded Jul 23 at 8:16
Efficient proof for Cartesian product
Awarded Jul 23 at 2:04
Product of secrets in multi-secret sharing schemes (aka packed secret sharing schemes)
Awarded Jul 22 at 16:26
What is the correct order of operations for one-time pad cipher when using subtraction and mod 10 arithmetic?
Awarded Jul 21 at 10:04
Cracking RSA (or other algorithms) manually by a savant
Awarded Jul 20 at 23:31
How Differential Cryptanalysis of DES work?
Awarded Jul 19 at 12:18
(post deleted or otherwise unavailable)
Awarded Jul 19 at 8:50
(post deleted or otherwise unavailable)
Awarded Jul 19 at 2:31
A discrete-log-like problem, with matrices: given $A^k x$, find $k$
Awarded Jul 18 at 22:21
How can malicious garbling compromise evaluator's input in Yao's garbled circuit
Awarded Jul 18 at 17:46
Hash function and operation commuting over composition
Awarded Jul 18 at 1:32
CDH solver algorithm construction
Awarded Jul 17 at 11:41
Encryption of small data with fixed key and incremental IV
Awarded Jul 17 at 9:27
calculate ESS IV initialization vector for aes-cbc essiv encryption
Awarded Jul 16 at 23:31
What security does the BMR protocol offer against corruption?
Awarded Jul 16 at 11:49
Construction of key recovery attack in O(2^(n/2))
Awarded Jul 15 at 23:10
(post deleted or otherwise unavailable)
Awarded Jul 15 at 23:02
Does reusing IV in AES-CBC weaken it?
Awarded Jul 15 at 11:49
Schnorr RSA factoring (round 2)
Awarded Jul 15 at 11:31
Requirements for security against multi-target attacks, for McEliece and other code-based cryptosystems?
Awarded Jul 14 at 20:16
What happens if the Edwards curve isn't quadratic twist secure?
Awarded Jul 14 at 18:32
How to properly guarantee authentication, confidentiality, and replay-resistance for multiple messages using a pre-shared key?
Awarded Jul 14 at 13:41
How to properly guarantee authentication, confidentiality, and replay-resistance for multiple messages using a pre-shared key?
Awarded Jul 13 at 21:43
What are the properties of a hash function?
Awarded Jul 13 at 2:30
How much much data can be verified by an electronic signature?
Awarded Jul 12 at 23:31
Complexity of deriving message from CMAC vs HMAC when the key is known
Awarded Jul 12 at 23:10
Finding the cleartext password given its MD5
Awarded Jul 11 at 12:26
Finding the cleartext password given its MD5
Awarded Jul 11 at 12:26
Build a cipher that is secure against message recovery attack but not semantically secure
Awarded Jul 11 at 10:08
(post deleted or otherwise unavailable)
Awarded Jul 10 at 12:56
Cracking Elliptic Curve Cryptography
Awarded Jul 10 at 7:33
Does matrix multiplication of hash digests admit manipulation of the result?
Awarded Jul 10 at 2:21
SIS without the modulus
Awarded Jul 9 at 6:15
Making WOTS+ public keys shorter
Awarded Jul 8 at 22:55
What are the explicit usage of different keys derived from SKEYSEED in IKE?
Awarded Jul 8 at 0:55
Splitting an AES-256 key into two?
Awarded Jul 6 at 15:12
Why is implementation relevant to timing attacks?
Awarded Jul 6 at 14:41
(post deleted or otherwise unavailable)
Awarded Jul 5 at 18:55
Modular arithmetic does not work in Threshold signature (TSS) implementation [migrated]
Awarded Jul 5 at 15:30
How does bootstrapping work?
Awarded Jul 4 at 2:27
One way shared key encryption with NaCl - is it safe to generate a throwaway keypair for the encrypting party
Awarded Jul 2 at 19:58
(post deleted or otherwise unavailable)
Awarded Jul 1 at 21:46
Is there an asymmetric encryption protocol which provides arbitrarily many seemingly unrelated public keys for a single private key?
Awarded Jul 1 at 7:25
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