Cryptography

Popular Question

 Popular Question
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Awarded 5162 times.
Why have Nonce and why encrypt everything in step 2 for Needham-Schroeder?
Awarded yesterday
Why to try get key out of white box crypto? How can one protect WBC itself?
Awarded Nov 28 at 15:32
Keepass Twofish plugin security
Awarded Nov 27 at 23:11
how to get the file used to brute force any encryption method [closed]
Awarded Nov 27 at 15:02
Is this correct way to generate stream cipher using AES CTR mode?
Awarded Nov 26 at 23:40
Ways to make white-box cryptography AES implementation more difficult to be broken
Awarded Nov 26 at 23:22
Can Shor's algorithm compromise RSA when both the public and private key are secret?
Awarded Nov 26 at 14:37
Why does Paillier have poor performance?
Awarded Nov 26 at 2:16
Database row level encryption scheme
Awarded Nov 25 at 13:56
Why would Diffie-Hellman Group 21 be 521 bits rather than 512?
Awarded Nov 25 at 10:19
Is it okay to use an HMAC of the plaintext and a (possibly distinct) key as the IV for symmetric cryptography?
Awarded Nov 25 at 8:20
Is it possible to recover an AES encrypted file that was decrypted with incorrect key/password?
Awarded Nov 24 at 8:04
RSA encryption/decryption process is not working correctly
Awarded Nov 23 at 23:16
AES-256 Shift-Rows Offsets
Awarded Nov 23 at 17:12
AES-GCM GHASH calculation;
Awarded Nov 23 at 15:47
Why is this not a viable key exchange algorithm? [duplicate]
Awarded Nov 23 at 11:04
Find plaintext from two ciphers encrypted with a one-time pad and the same key
Awarded Nov 22 at 15:12
Verifying EdDSA signatures using xedDSA verify function.
Awarded Nov 22 at 12:26
How can I decode a Hill Cipher without a key? [duplicate]
Awarded Nov 21 at 9:40
One-way function and factoring
Awarded Nov 21 at 3:04
RSA time function
Awarded Nov 20 at 14:22
How to recover secret $x$ from Elgamal signatures with repeated $k$?
Awarded Nov 20 at 4:50
Parallel Pollard's Rho: Number of distinguished points
Awarded Nov 20 at 4:35
Block cipher not resistant to collisions
Awarded Nov 20 at 4:04
DUKPT MAC Variant key [closed]
Awarded Nov 20 at 2:07
Reducing size of hash function
Awarded Nov 20 at 0:07
Are MACs vulnerable to birthday attacks?
Awarded Nov 19 at 4:10
In Diffie-Hellman, are $g$ and $p$ universal constants or are they chosen by one party according to a set of rules?
Awarded Nov 17 at 13:57
Using AI to perform Cryptanalysis
Awarded Nov 17 at 11:36
Creating own ciphertext after a padding oracle attack?
Awarded Nov 17 at 1:57
What is best practise for salting and multiple-hashing of passwords?
Awarded Nov 16 at 4:51
What hashing algorithm does RSA use?
Awarded Nov 16 at 3:36
Secret Sharing and Multiplication Triples
Awarded Nov 16 at 2:25
Probability approximation of no collisions
Awarded Nov 15 at 23:16
Is Caesar cipher perfectly secret?
Awarded Nov 15 at 20:27
why inverse in diffie-hellman protocol will not give same value?
Awarded Nov 15 at 17:27
What if message is longer than keystream ?
Awarded Nov 15 at 0:05
Modular Multiplicative Inverse and RSA?
Awarded Nov 14 at 21:43
Formally, what is AES?
Awarded Nov 13 at 10:52
How can I edit or build an app to encrypt data, and build a decryption key?
Awarded Nov 12 at 21:05
Why are the ciphertexts of Ansible Vault's AES256-encrypted files disproportionately composed of '3' and '6'?
Awarded Nov 11 at 22:35
How do we guarantee plaintext is coprime in RSA?
Awarded Nov 11 at 21:46
Multi-party key agreement
Awarded Nov 11 at 21:12
Factoring an RSA modulus given high bits of a factor
Awarded Nov 11 at 19:42
Using hash functions for Key Check Values (KCV)
Awarded Nov 10 at 14:41
What are the vulnerabilities of XOR in the following scenario?
Awarded Nov 10 at 1:34
End to end encrypted web chat app with stored messages in database
Awarded Nov 9 at 19:42
Is $H(x) = x^2 \bmod p$ pre-image resistant, second pre-image resistant and/or collision resistant
Awarded Nov 8 at 20:16
Can the round function $F$ in a Feistel Network be practically any non-invertible function?
Awarded Nov 8 at 16:15
Why I can't permutate an email and get away with it?
Awarded Nov 8 at 9:06
RSA Encryption problem for Discrete Math
Awarded Nov 8 at 8:41
Why IV does not have to be secret yet has to be random [duplicate]
Awarded Nov 8 at 3:18
RSA encryption with multiple publickeys
Awarded Nov 7 at 18:27
Which hash is used when providing signature algorithm ED25519 or ED448?
Awarded Nov 6 at 1:34
Proof by reduction clarification
Awarded Nov 5 at 23:33
Numeric base conversion in cryptosystems?
Awarded Nov 5 at 21:31
Windows certreq full response file [closed]
Awarded Nov 5 at 16:16
Differential Privacy: why $\delta$ negligible on the row numbers?
Awarded Nov 5 at 15:40
Why is the signature field in X.509 a BIT STRING, despite there being ASN.1 (DER) data inside?
Awarded Nov 5 at 14:10
Why use an RSA public key exponent of form $2^n+1$ instead of $2^n-1$?
Awarded Nov 5 at 10:34
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