Cryptography Stack Exchange is a question and answer site for software developers, mathematicians and others interested in cryptography. It only takes a minute to sign up.

Sign up to join this community

Anybody can ask a question

Anybody can answer

The best answers are voted up and rise to the top

Explore our Questions

more tags

Active 1 Bountied Hot Week Month

2

votes

1

answer

765

views

3DES Modes EED or EDE?

3des

modified 40 mins ago Robert Houghton 105

1

vote

0

answers

7

views

Why is it bad to encrypt the same message M with the same key K in both CTR and CBC modes of operation?

cryptanalysis

1 hour ago

3

votes

1

answer

214

views

Is length extension attack considered as collision?

hash collision-resistance length-extension

modified 3 hours ago fgrieu 92.8k

1

vote

1

answer

97

views

Is this problem based on discrete polynomials modulo $(x^3-1)$ strong?

hardness-assumptions

modified 5 hours ago poncho 101k

2

votes

1

answer

365

views

What is the difference between: ecdsap, ecdsak, and ecdsab in the output of “openssl speed”? What do the letters P/K/B refer to?

dsa openssl

modified 5 hours ago Squeamish Ossifrage 38.4k

0

votes

2

answers

31

views

What is a multi-target attack on block ciphers?

block-cipher attack

modified 6 hours ago Squeamish Ossifrage 38.4k

2

votes

0

answers

75

views

+100

Any speed up methods for finding the index of a random value produced by the Inversive congruential generator?

cryptanalysis random-number-generator pseudo-random-function attack pseudo-random-permutation

modified 7 hours ago J. Doe 265

0

votes

0

answers

12

views

Will CT (Certificate Transparency) override the use of CAA and/or DANE/TLSA records?

public-key certificates

asked 8 hours ago Osqui 101

0

votes

1

answer

25

views

Text encryption algorithms that can be used and are secure

aes

answered 8 hours ago Maarten Bodewes♦ 63.6k

0

votes

1

answer

61

views

Choice of finite fields for use in elliptic curves

elliptic-curves finite-field

modified 10 hours ago yyyyyyy 10.2k

0

votes

1

answer

27

views

Generate private key from public key RSA

encryption rsa

answered 11 hours ago Woodstock 461

6

votes

5

answers

14k

views

What encryption should I use: Blowfish, Twofish, or Threefish?

encryption blowfish twofish threefish

answered 11 hours ago PenguinOutOfWater 41

5

votes

3

answers

2k

views

What is the likely cause the RSA algorithm gives back plain text in this case?

encryption rsa modes-of-operation

modified 12 hours ago kelalaka 13.3k

1

vote

1

answer

555

views

Using Montgomery ladder to calculate the coordinates

elliptic-curves

modified 12 hours ago kelalaka 13.3k

Browse more Questions

Cryptography Stack Exchange works best with JavaScript enabled