Cryptography

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Awarded 6318 times.
Fully homomorphic encryption (over addition and multiplication) library in python
Awarded Apr 5 at 19:55
Is it safe to reuse the same nonce for decryption an indefinite amount of times in this context?
Awarded Apr 5 at 12:05
Which is the irreducible polynomial in GF(2^256) used in AES256-GCM?
Awarded Apr 4 at 14:25
Why do SignTool/Authenticode Message Digests not match the direct hash of the file?
Awarded Apr 4 at 13:35
Can zkSNARK or other zero-knowledge proofs be used to proof message authenticity without revealing private key?
Awarded Apr 4 at 12:35
How to apply a block cipher to (large) packetized communication when packets can get lost/erased?
Awarded Apr 4 at 11:55
What is the difference between cfb and cfb1 and cfb8 ? ( like openssl's aria-128-cfb & aria-128-cfb1 & aria-128-cfb8 )
Awarded Apr 3 at 20:46
Is Salsa20+Poly1305 an AEAD?
Awarded Apr 3 at 13:10
How to backup a secret encrypted by multi parties without revealing the secret?
Awarded Apr 2 at 12:35
How do Alice and Bob perform key exchange through a third-party (server) in end-to-end encryption?
Awarded Apr 2 at 3:55
Can an AES-GCM be cracked if the key is known but the nonce isn't?
Awarded Apr 2 at 3:10
Is an invulnerable code possible (including brute force attack)?
Awarded Apr 1 at 21:40
Can hashes be used to generate larger random numbers?
Awarded Apr 1 at 20:40
I don't understand RSA encryption (specific questions)?
Awarded Apr 1 at 17:00
Anonymous location hashing
Awarded Apr 1 at 10:55
A website that identifies an RNG from its output
Awarded Apr 1 at 10:00
Using encryption as authentication
Awarded Apr 1 at 0:55
How does re-hashing affects security strength?
Awarded Mar 31 at 22:55
All generators for modulo p
Awarded Mar 31 at 22:50
Does splitting random data reduce its security?
Awarded Mar 31 at 21:20
How do i approach file encryption using encrypt-then-mac? [duplicate]
Awarded Mar 30 at 22:05
Password hash salt
Awarded Mar 30 at 17:45
ECDH Public Key Recovery - Determine if valid key exists from just signature and message
Awarded Mar 29 at 21:55
Are bijective polynomials of degree $2 \bmod 2^m$ efficiently inverted?
Awarded Mar 29 at 13:25
Computationally expensive key derivation whose difficulty is asymmetric
Awarded Mar 29 at 7:25
Chosen plain-text Attack on DES-X with roughly $2^{64}$ DES operations
Awarded Mar 29 at 1:50
How do I find out whether a message in CBC has padding?
Awarded Mar 29 at 1:45
Is it safe to convert a 256-bit nonce into a 192-bit nonce by SHA-256ing and then truncating it?
Awarded Mar 28 at 18:00
Why is Math.floor(Math.random()*9000) not secure in JavaScript?
Awarded Mar 27 at 15:40
Why is Curve25519 mostly used for key exchange?
Awarded Mar 27 at 12:50
How to perform the initial permutations 64-Bit DES to derive $K$?
Awarded Mar 26 at 23:25
How to get the original list back given a shuffled list and seed?
Awarded Mar 26 at 22:25
Learning with rounding (LWR)
Awarded Mar 26 at 20:10
Example of a problem for which Zero-Knowledge proof is not sequentially composable
Awarded Mar 26 at 15:40
List of big strong primes
Awarded Mar 26 at 9:50
Better lower bound on min-entropy
Awarded Mar 26 at 9:50
DCT Steganography Problem
Awarded Mar 25 at 23:10
Encrypting Data with user + custodian private keys
Awarded Mar 25 at 22:45
Elliptic Curves - Proving that the group is not cyclic
Awarded Mar 25 at 14:15
A possible error in the book
Awarded Mar 24 at 14:05
A hash functin based on XOR and matrix multiplication
Awarded Mar 24 at 6:00
Can I retrieve a re-hashed (hash) value, for instance by additional hashing?
Awarded Mar 24 at 5:45
Using cryptographically random password as both the password and the salt
Awarded Mar 23 at 15:05
Is Commitment Scheme with hash function is a perfectly hiding scheme?
Awarded Mar 23 at 13:20
Is there a simplified article, video, or blog about bulletproofs?
Awarded Mar 23 at 11:45
Line by line encrypted logging stored with iv/salt/iterations. How safe is it?
Awarded Mar 22 at 17:40
How passwords are fed to key derivation functions?
Awarded Mar 22 at 11:10
How can you derive a P-256 public key from the X and Y points
Awarded Mar 20 at 21:00
Common modulus attack with not coprime exponents
Awarded Mar 20 at 17:55
Constructing an integer with specific totient without factorization
Awarded Mar 20 at 13:50
RFC6979: error in reference implementation?
Awarded Mar 20 at 13:05
Is there a digital equivalent to the Great Seal of the United States?
Awarded Mar 20 at 12:05
Explanation of $z^{-1}$ and $T_{1,2}$ within E0 Bluetooth encryption algorithm
Awarded Mar 19 at 20:20
Name for a Ceasar Cipher that uses random offsets?
Awarded Mar 19 at 19:35
How to decipher an ADFGVX cipher?
Awarded Mar 18 at 13:20
Possible attacks on CMAC
Awarded Mar 18 at 12:55
Difference between DER encoded signatures in JavaScript, Java, and C++
Awarded Mar 17 at 10:10
What's the actual difference between RSA encrypting and Descrypting and RSA Signing? [duplicate]
Awarded Mar 16 at 20:50
ECDH, x25519 and limitations for securing client-certificates on the server
Awarded Mar 16 at 2:40
How to securely store and validate a 4-digit PIN used on a mobile device?
Awarded Mar 16 at 0:20
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