Popular Question - Badge - Cryptography Stack Exchange

Popular Question

Question with 1,000 views. This badge can be awarded multiple times.

Awarded 7298 times.

Single public key for NaCL signing and encryption?

Awarded 7 hours ago

Chris McCormick

1776 bronze badges

Difference between FFT and NTT

Awarded 8 hours ago

C.S.

4152 silver badges9 bronze badges

Where is the specification for SHA1PRNG?

Awarded May 26 at 16:56

Cryptomathician

257 bronze badges

PBKDF and Entropy

Awarded May 26 at 15:20

Woodstock

1,3441 gold badge11 silver badges21 bronze badges

Does reusing IV in AES-CBC weaken it?

Awarded May 26 at 10:21

Kryštof Vosyka

957 bronze badges

AES CTR: Random IV

Awarded May 24 at 14:41

earthling

1656 bronze badges

How to use AES correctly in BPS Format Preserving Encryption

Awarded May 24 at 14:02

erotavlas

5073 silver badges13 bronze badges

AES confused about how ShiftRows() step works

Awarded May 24 at 10:16

Ach113

1997 bronze badges

How to calculate the order of secp256k1?

Awarded May 24 at 9:33

Andy

1135 bronze badges

Is there any probabilistic version of RSA?

Awarded May 23 at 19:18

C learner

233 bronze badges

OpenSSL AES-GCM says 'bad decrypt', other block modes work fine?

Awarded May 23 at 13:27

RocketNuts

1,3971 gold badge10 silver badges23 bronze badges

Significance of Extended Euclidean Algorithm in Cryptography

Awarded May 23 at 12:57

JNMN

715 bronze badges

Can you use RSA in “CBC mode”?

Awarded May 22 at 21:57

Crypto Questions

233 bronze badges

Differential Cryptanalysis for Hash functions

Awarded May 22 at 11:06

k3170makan

556 bronze badges

Ed25519 key generation

Awarded May 21 at 19:10

Marc Ilunga

2,3331 gold badge8 silver badges17 bronze badges

ECDSA where the group order is larger than the hash size?

Awarded May 21 at 18:17

neubert

2,8551 gold badge25 silver badges50 bronze badges

Implementing AES MixColumns with fewest XOR gates

Awarded May 20 at 19:52

RFuentess

715 bronze badges

In what sense addition modulo $n$ ($n>2$) isn't linear in the field $\mathbb{F}_2$?

Awarded May 20 at 18:37

ela

3472 silver badges12 bronze badges

Importance of round complexity in determining the efficiency of an MPC protocol

Awarded May 19 at 0:40

sun

5402 silver badges12 bronze badges

Is OMEMO vulnerable in case of compromised jabber server?

Awarded May 18 at 19:48

Rengraz

512 bronze badges

Why is Diffie-Hellman Insecure If Order of the Generator Has Only Small Prime Factors?

Awarded May 18 at 9:45

satya

1,3549 silver badges27 bronze badges

How to use nonce, counter, and IV in AES-256-CTR?

Awarded May 17 at 21:57

jared chong

112 bronze badges

Zero Knowledge Proof using hash chains - Is there a flaw in the algorithm?

Awarded May 17 at 21:31

coder_bro

1635 bronze badges

What is the advantage of a symmetric encryption system over an asymmetric encryption system?

Awarded May 17 at 19:40

sflow

991 bronze badge

Why don't homophones hide multiple-letter patterns?

Awarded May 16 at 19:25

ishaq

1435 bronze badges

The essential differences between IND-CCA1 and IND-CCA2?

Awarded May 16 at 17:55

Max1z

1257 bronze badges

Are (EC) DSA blind signatures possible?

Awarded May 16 at 5:26

Chris

8094 silver badges9 bronze badges

Confusion over PKCS#1 and "traditional" options with OpenSSL

Awarded May 15 at 16:41

ubiquibacon

2178 bronze badges

ElGamal Threshold Cryptosystem

Awarded May 15 at 10:05

Fiono

5672 silver badges11 bronze badges

Salsa20 / ChaCha with 128 bit keys

Awarded May 14 at 12:32

neubert

2,8551 gold badge25 silver badges50 bronze badges

Why ``adversary'' and ``challenger'' and what are typical roles of those?

Awarded May 14 at 10:14

mallea

1,5358 silver badges21 bronze badges

Encryption using static AES256 symmetric key vs ephemeral session key

Awarded May 14 at 6:07

Dolf Andringa

1235 bronze badges

Cryptography Pseudo Random Generator example question - proof

Awarded May 12 at 23:47

nachofest

635 bronze badges

What is the public key and signature sizes for XMSS?

Awarded May 12 at 20:17

Panos

2641 silver badge12 bronze badges

How to retrieve BIP39 seed phrase: 3 words missing of 24

Awarded May 12 at 12:41

onthemoon01

13 bronze badges

Zero knowledge proof for opening of Pedersen commit and discrete logarithm

Awarded May 12 at 8:03

joakimb

2431 silver badge9 bronze badges

How constant value 0x63 in affine transformation is chosen or generated while AES Substitution Box is formed?

Awarded May 10 at 18:46

Arnab Rahman

1411 silver badge6 bronze badges

What are some hashes that do not exhibit the avalanche effect?

Awarded May 9 at 12:21

user24533

313 bronze badges

Finding max period of 8-bit LFSR

Awarded May 8 at 9:26

cyborg_681

112 bronze badges

Help with RSA CTF question

Awarded May 7 at 17:02

jdkleuver

236 bronze badges

Practical way to generate random numbers from PRNG which are indistinguishable from true random

Awarded May 7 at 9:16

Patrick

2512 gold badges5 silver badges25 bronze badges

How to properly format a PGP Message Block? [closed]

Awarded May 7 at 0:52

calccrypto

5361 gold badge7 silver badges24 bronze badges

How does second pre-image attack on Merkle Signature Scheme work?

Awarded May 5 at 13:35

evernal

2371 silver badge6 bronze badges

AES or One-time-pad for encrypting a single 128bit block?

Awarded May 5 at 11:50

RBK050

212 bronze badges

Combining Random Hashes - avoiding collisions and ensuring randomness

Awarded May 5 at 0:26

disruptive

1315 bronze badges

Bit commitment with 1-out-of-2 oblivious transfer

Awarded May 5 at 0:05

Felix D.

1315 bronze badges

Cryptanalysis on Kasumi in A5/3 GSM algorithm-- why is it broken in 2G and not in 3G?

Awarded May 2 at 23:56

Dimitrios Desyllas

4472 silver badges17 bronze badges

For elliptic-curve cryptography, does a 256-bit key imply that $x$ and $y$ are each 256-bits or 128-bits?

Awarded May 2 at 21:32

chausies

3351 silver badge11 bronze badges

Why do 1st and 3rd key have to be the same in 2 key 3DES?

Awarded May 2 at 19:57

edfg

233 bronze badges

Additive inverse for elliptic curve addition in finite field in jacobian coordinates

Awarded May 2 at 4:10

floyd

1451 silver badge6 bronze badges

Is it theoretically possible to create an unbreakable cipher?

Awarded Apr 30 at 6:07

Evan Su

4213 silver badges14 bronze badges

Hash collision resistance requirements for Lamport signatures

Awarded Apr 29 at 3:40

dchest

1,1621 gold badge14 silver badges22 bronze badges

Why does encryption in STS protocol protect against identity attacks?

Awarded Apr 27 at 17:03

drdot

3494 silver badges10 bronze badges

How to use SPHINCS+?

Awarded Apr 27 at 4:45

CoryG

5492 silver badges10 bronze badges

Embedding SHA256 inside SHA1 for BitTorrent

Awarded Apr 27 at 1:11

fiatjaf

1558 bronze badges

Restoring a point on an elliptic curve

Awarded Apr 26 at 10:48

Rotvik Knuzich

896 bronze badges

Tiny AES vs AES algorithm

Awarded Apr 26 at 8:32

Tarun Mittal

296 bronze badges

Is Argon2 Quantum safe? [duplicate]

Awarded Apr 26 at 6:32

ANISH M 18CS006

5113 bronze badges

How can I send a secure public message using ECC? [closed]

Awarded Apr 26 at 5:55

remon78eg

176 bronze badges

Running time of Shamir's secret sharing scheme

Awarded Apr 25 at 14:11

hanugm

4997 silver badges18 bronze badges

2 3 4 5

…

122 Next