Cryptography

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Answer a question with score of 1 or more.
Awarded 3603 times.
Chosen Plaintext Attack on DES/AES
Awarded Feb 7 at 22:27
Basic explanation of Falcon and Dilithium
Awarded Feb 6 at 2:21
Is AES-128 quantum safe?
Awarded Feb 4 at 13:51
Why modn and modular exponent g^x mod n are not cryptographic hash functions?
Awarded Feb 2 at 1:42
Quantum Computing Used to Break RSA by "fixing" Schnorr's Recent Factorization Claim?
Awarded Jan 28 at 1:41
OWF from PRG and OWF
Awarded Jan 27 at 3:33
How does TLS differ from SSH from a strictly cryptographic perspective?
Awarded Jan 27 at 3:33
Does having multiple salted hashes lower pre-image resistance?
Awarded Jan 26 at 9:15
Z superscript confusion
Awarded Jan 23 at 17:57
How does Microsoft's BitLocker Recovery Code work?
Awarded Jan 18 at 14:34
Why does the challenge need to be prime in Wesolowski's succinct argument of $y=x^{e}$?
Awarded Jan 17 at 19:16
Is there any strong enough pen-and-paper or mind cipher?
Awarded Jan 16 at 23:20
Coin flipping without commitments or random oracles
Awarded Jan 15 at 2:18
Signal's Key Wrap: is it safe and is it custom?
Awarded Jan 13 at 19:33
Is CTR more secure than CBC?
Awarded Jan 12 at 14:18
Generating public/private key pair from data and shared password
Awarded Jan 11 at 12:18
Does symmetric key cryptography usually include hash function?
Awarded Jan 11 at 9:02
Always set the IV to 0 randomized CBC
Awarded Jan 9 at 12:35
(post deleted or otherwise unavailable)
Awarded Jan 6 at 22:08
Why does GMP only run Miller-Rabin test twice when generating a prime?
Awarded Jan 6 at 0:00
Chosen Ciphertext Attack textbook RSA
Awarded Jan 3 at 6:27
Input Delayed Sigma-Protocol
Awarded Dec 31, 2022 at 3:09
Proof for secure stream cipher implies secure PRG
Awarded Dec 29, 2022 at 21:11
Is exposing hash of private key provably secure?
Awarded Dec 27, 2022 at 0:18
Are there any significant ways in which TLS could still be improved?
Awarded Dec 26, 2022 at 0:57
Elliptic Curve - Divide by 2
Awarded Dec 23, 2022 at 16:56
Access tree and Key geneation in KP-ABE
Awarded Dec 20, 2022 at 11:02
How to solve this Baby Bleichenbacher Attack?
Awarded Dec 19, 2022 at 1:16
Examples of frauds discovered because someone tried to mimic a random sequence
Awarded Dec 17, 2022 at 11:58
Is the generator point in the curve in secp256k1?
Awarded Dec 16, 2022 at 6:05
Generic name for R1CS vs. AIR
Awarded Dec 14, 2022 at 3:51
(post deleted or otherwise unavailable)
Awarded Dec 12, 2022 at 17:48
Examples of frauds discovered because someone tried to mimic a random sequence
Awarded Dec 12, 2022 at 9:25
Examples of frauds discovered because someone tried to mimic a random sequence
Awarded Dec 11, 2022 at 13:16
Identifying an encryption algorithm and/or writing an encryption function
Awarded Dec 5, 2022 at 12:57
S boxes in Blowfish
Awarded Dec 5, 2022 at 9:21
Could a 6502 CPU safely compute a SHA-1 hash in a reasonable length of time?
Awarded Dec 4, 2022 at 22:06
Is considered safe saving encrypting files using asymmetric encryption algorithm inside public environments?
Awarded Dec 1, 2022 at 11:36
Zero secret key in EC ElGamal: standards vs theory
Awarded Dec 1, 2022 at 11:25
Group isomorphisms between elliptic curves defined over ground fields with different extension degrees
Awarded Nov 30, 2022 at 13:18
(post deleted or otherwise unavailable)
Awarded Nov 29, 2022 at 8:06
File Size Shrinks After Encryption
Awarded Nov 29, 2022 at 4:43
Symmetrical encryption with hashing algorithm
Awarded Nov 28, 2022 at 16:06
Avoid hash flooding without a secret key?
Awarded Nov 24, 2022 at 11:06
Argon2 derive two keys from one password
Awarded Nov 21, 2022 at 19:20
Is this scheme CPA or/and EAV secure
Awarded Nov 18, 2022 at 5:27
Password hashing and salting with SHA-256 on $2^{64}$ password space
Awarded Nov 18, 2022 at 5:22
What is the standard checklist for designing a Key Derivation Function?
Awarded Nov 16, 2022 at 22:21
AES/ECB vs AES/CBC for <16 bytes
Awarded Nov 14, 2022 at 8:41
What do people use non-extractable WebCrypto keys for?
Awarded Nov 11, 2022 at 8:47
What are the pros and cons of deterministic site-specific password generation from a master pass?
Awarded Nov 10, 2022 at 14:11
How is $Nb$ (number of columns) calculated in AES (Rijndael)?
Awarded Nov 9, 2022 at 4:32
How can you prove that a certain file was downloaded from a certain website?
Awarded Nov 8, 2022 at 14:55
Advances in Indistinguishability Obfuscation
Awarded Nov 4, 2022 at 20:28
How do certificates help?
Awarded Nov 3, 2022 at 23:57
How AES diffusion (permutation) does not impact ECB penguin pattern with in each block?
Awarded Nov 3, 2022 at 9:06
In which situations is a length-extension attack a problem?
Awarded Oct 31, 2022 at 9:22
Repeating nonce in CTR mode
Awarded Oct 30, 2022 at 6:34
Cons for stream ciphers that are based on hash functions
Awarded Oct 29, 2022 at 3:01
Where can I find official test vectors for NIST SP 800-56C r1 Single Step KDF
Awarded Oct 26, 2022 at 18:36
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