Skip to main content
Cryptography

Nice Question

 Nice Question
Question score of 10 or more. This badge can be awarded multiple times.
Awarded 1750 times.
Crypto-Compression Algorithms?
Awarded Sep 10 at 18:10
What is the motivation behind Key-policy Attribute-based Encryption?
Awarded Sep 6 at 16:45
How to efficiently generate a random safe prime of given length?
Awarded Aug 26 at 7:38
Fast cryptographic hash function for short inputs
Awarded Aug 11 at 23:06
Can I safely replace XOR with ADD in a stream cipher?
Awarded Aug 8 at 15:47
Why are elliptic curves constructed using prime fields and not composite fields?
Awarded Aug 6 at 23:31
How to implement arbitrary s-box in a side-channel-free way in C?
Awarded Aug 4 at 19:48
Discrete log problem, when we have many examples
Awarded Aug 3 at 19:56
A discrete-log-like problem, with matrices: given $A^k x$, find $k$
Awarded Aug 3 at 16:42
Why does CTR mode XOR the plaintext into the output of the block cipher rather than XORing the plaintext into the input of the block cipher?
Awarded Jul 29 at 18:20
Does ChaCha20/Salsa have the same bit strength as AES for identical key sizes?
Awarded Jul 28 at 22:46
With SHA-1 broken, can the old Linux /dev/(u)random algorithm be trusted?
Awarded Jul 26 at 7:35
What's the difference between PBKDF2 and HMAC-SHA256 in security?
Awarded Jul 25 at 8:16
Can we design a public-key infrastructure without certificate authorities?
Awarded Jul 24 at 1:37
Why does OpenPGP encryption produce different ciphertexts from the same plain text?
Awarded Jul 16 at 16:07
What is the typical block size in RSA?
Awarded Jul 15 at 20:17
Is there such thing as an order independent, updatable hash?
Awarded Jun 25 at 4:21
Are there any symmetric cryptosystems based on computational complexity assumptions?
Awarded Jun 21 at 12:02
How hard is it to generate a simultaneous MD5 and SHA1 collision?
Awarded Jun 2 at 17:26
Poly1305-AES vs AES-GCM
Awarded May 22 at 16:56
How to better generate large primes: sieving and then random picking or random picking and then checking?
Awarded May 11 at 10:57
Is it possible to establish a shared secret over an untrusted unidirectional channel?
Awarded May 7 at 3:18
How many bits in the resultant hash will change, if the x bits are changed in its the original input?
Awarded Apr 25 at 14:05
If we can find prime numbers larger than 17 milion digits, why can't we find all 1024bit primes? [duplicate]
Awarded Apr 20 at 4:51
Problem with LLL reduction on truncated LCG schemes
Awarded Apr 19 at 5:07
What is a multi-target attack?
Awarded Apr 16 at 15:26
What do NM-CPA and NM-CCA mean?
Awarded Apr 15 at 3:40
Polynomial-time Quantum Algorithms for Lattice Problems
Awarded Apr 11 at 5:35
How will the world learn that Q-Day has arrived?
Awarded Apr 4 at 19:47
What are advantages of chaos based image encryption methods over simply treating images as opaque bit strings?
Awarded Mar 29 at 13:57
Is it proven that breaking RSA is equivalent to factoring as of 2021?
Awarded Mar 19 at 16:41
Using cryptographically random password as both the password and the salt
Awarded Mar 11 at 6:52
What is the Common Reference String (CRS) model
Awarded Mar 8 at 8:55
What is the difference between RSASSA-PSS signing and RSA-PSS signing?
Awarded Mar 7 at 1:02
What criteria make the theta step of Keccak's round function reversible?
Awarded Mar 6 at 14:36
Impact of Ryan and Heninger's CRYPTO 2023 paper on post quantum cryptosystems
Awarded Feb 17 at 11:18
LUKS multiple key slots - what's the intuition?
Awarded Feb 17 at 7:56
What is the sponge construction in simple terms?
Awarded Feb 13 at 16:08
Boss insists on storing SHA2(p) || SHA3(p), claiming it "doubles security"
Awarded Feb 4 at 0:16
is TLS compression used in modern browsers?
Awarded Feb 2 at 14:27
Summarize the mathematical problem at the heart of breaking a Curve25519 public key
Awarded Jan 27 at 20:41
How did someone discover N, order of G for SECP256k1?
Awarded Jan 22 at 7:11
How to attack a fixed LCG with partial output?
Awarded Jan 15 at 8:47
Is it possible to recover an RSA modulus from its signatures?
Awarded Dec 24, 2023 at 5:56
What is different below two Ciphersuites?
Awarded Dec 19, 2023 at 23:09
Difference between somewhat homomorphic encryption and leveled homomorphic encryption?
Awarded Dec 8, 2023 at 21:34
How to write proofs for universal composable security？
Awarded Dec 6, 2023 at 13:57
Paillier can add and multiply, why is it only partially homomorphic?
Awarded Nov 28, 2023 at 22:03
Best cryptographic algo with asymmetric cost: expensive to sign, cheap to validate
Awarded Oct 29, 2023 at 12:16
Does Grover's algorithm really threaten symmetric security proofs?
Awarded Oct 18, 2023 at 19:22
How to use GCM mode and associated-data properly
Awarded Oct 15, 2023 at 0:40
Changing an Encryption scheme from AES to ChaCha20
Awarded Oct 12, 2023 at 10:35
Is a secure deterministic MAC always a PRF?
Awarded Oct 10, 2023 at 1:27
Point halving on elliptic curves of even order
Awarded Oct 3, 2023 at 18:26
Is CBC mode with a fixed IV secure, if a counter is prepended to the plaintext?
Awarded Sep 27, 2023 at 14:56
Somewhat Homomorphic Encryption versus Fully Homomorphic Encryption?
Awarded Sep 27, 2023 at 4:26
ECDH or RSA more secure for symmetric key wrapping?
Awarded Sep 6, 2023 at 9:02
Which attacks are possible against raw/textbook NTRU encryption?
Awarded Sep 1, 2023 at 16:56
Curve25519 Key Validation
Awarded Aug 30, 2023 at 6:51
Is it safe to create a public ID by hashing a private key?
Awarded Aug 28, 2023 at 13:26
1
2 3 4 5
…
30