Popular Question Badge - Cryptography Stack Exchange

jan 8 at 8:35

Differences Between White-Box Cryptography and Code Obfuscation — Binyamin Sharet 24316

dec 19 at 10:10

Types of Cryptography for a 4-8 bit microcontroller — Jim 1656

dec 13 at 19:06

What is the “Random Oracle Model” and why is it controversial? — Fixee 867214

dec 13 at 17:46

How to generate a list of unique random strings? — Micky Walia 363

dec 12 at 22:40

AES in ECB mode weakness — jjsanchez 384

dec 10 at 16:15

Why do we need asymmetric algorithms for key exchange? — user5507 386210

dec 7 at 17:23

What is the relation between RSA & Fermat's little theorem? — PlanetUnknown 1515

dec 6 at 6:12

How to use RCON In Key Expansion of 128 Bit Advanced Encryption Standard — goldroger 18110

nov 30 at 9:35

Why do we use encrypt-decrypt-encrypt (EDE) in 3DES, rather than encrypting three times? — alaamub 684

nov 27 at 7:48

What is safer: ZipCrypto or AES-256? — alex 13813

nov 26 at 8:08

OTP from Sony BIOS password recover — Paulo Scardine 1064

nov 26 at 0:13

How to choose a padding mode with AES — Cocowalla 1646

nov 24 at 8:22

Can one generalize the Diffie-Hellman key exchange to three or more parties? — hobeau 934

nov 20 at 7:34

Rijndael vs. Serpent vs. Twofish: General comparison — argos 1284

nov 18 at 11:32

Is there a simple hash function that one can compute without a computer? — FUZxxl 1686

nov 17 at 21:59

Cracking plain RSA without private key — user1084514 192

nov 8 at 14:03

Best way to reduce chance of hash collisions: Multiple hashes, or larger hash? — Theodor Kleynhans 6215

nov 7 at 6:44

Uncompress the winRar password protected file without password. (not brute force attacking) — Titan Zack 111

nov 5 at 23:33

RSA encryption with private key and decryption with a public key — Humam Shbib 14013

nov 2 at 10:06

When to use RSA and when ElGamal asymmetric encryption — curious 52339

nov 1 at 3:20

What makes a hash function good for password hashing? — You 23328

oct 26 at 20:03

In RSA, do I calculate d from e or e from d? — yydl 21925

oct 19 at 6:59

c# Correct Triple Des Block Encryption Usage — Evan 11

oct 18 at 8:44

How can Cipher Block Chaining (CBC) in SSL be attacked? — antonpug 1413

oct 17 at 12:39

How does a chosen ciphertext attack work, with a simple example? — mixkat 1785

oct 14 at 14:57

Is Convergent Encryption really secure? — Justin King 20325

oct 10 at 22:33

How secure is AES-256? — Gustav 11912

sep 27 at 17:58

What are the benefits of the two permutation tables in DES? — Am1rr3zA 27537

sep 27 at 2:48

Why is AES resistant to known-plaintext attacks? — Jeff Ferland 17516

sep 23 at 11:30

Is there any opensource white-box implementation of AES or DES? — ir01 931419

sep 16 at 18:16

Now that quantum computers have been out for a while, has RSA been cracked? — IDWMaster 28116

sep 5 at 18:56

Why does nobody use (or break) the Camellia Cipher? — Chris Smith 355110

sep 1 at 20:29

How does one attack a two-time pad (i.e. one time pad with key reuse)? — Samer Meggaly 6315

aug 31 at 15:43

Why is public-key encryption so much less efficient than secret-key encryption? — JustinY 1535

aug 31 at 1:42

Encryption/ciphers/codes in Chinese — pyko 1334

aug 16 at 1:44

Guarding against cryptanalytic breakthroughs: combining multiple hash functions — Paŭlo Ebermann♦ 9,76521743

aug 13 at 6:50

Identifying encryption method from encrypted string — Shiraz Bhaiji 26016

aug 10 at 17:41

Why can't one implement bcrypt in Cuda? — Rook 41819

aug 8 at 19:43

How can I use asymmetric encryption, such as RSA, to encrypt an arbitrary length of plaintext? — samoz 857618

jul 11 at 23:00

Google is using RC4, but isn't RC4 considered unsafe? — jonasl 17615

jun 26 '12 at 2:59

Why is elliptic curve cryptography not widely used, compared to RSA? — Vineet Menon 22027

jun 4 '12 at 13:39

How does one calculate a primitive root for Diffie-Hellman? — yydl 21925

may 16 '12 at 3:04

How long does it take to crack DES and AES? — huyichen 22028

apr 23 '12 at 18:27

Should I use ECB or CBC encryption mode for my block cipher? — silverback 206211

apr 23 '12 at 11:57

How much would it cost in U.S. dollars to brute force a 256 bit key in a year? — John Fischer 22633

apr 22 '12 at 19:31

How should I calculate the entropy of a password? — this.josh 27727

apr 12 '12 at 16:39

How does the index of coincidence work in the Kasiki test? — norman 3612

mar 25 '12 at 5:35

How can I generate large prime numbers for RSA? — Lukman 28226

mar 24 '12 at 23:15

Taking advantage of one-time pad key reuse? — Elliott 23126

mar 17 '12 at 19:57

Should we MAC-then-encrypt or encrypt-then-MAC? — Thomas Pornin 19.1k13571

mar 13 '12 at 23:02

What are the practical difference between 256-bit, 192-bit, and 128-bit AES encryption? — samoz 857618

feb 28 '12 at 18:19

How does asymmetric encryption work? — Senad Meškin 7416

nov 17 '11 at 6:35

Basic explanation of Elliptic Curve Cryptography? — user5507 386210

sep 7 '11 at 3:02

Is modern encryption needlessly complicated? — Ozzah 34435

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