Cryptography

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Why we need pixel data encryption (perceptual encryption), not the complete file encryption (conventional encryption)?
Awarded 13 hours ago
ECDSA public key point uniqueness [duplicate]
Awarded 21 hours ago
How to store encrypted solutions of a find location game?
Awarded yesterday
AES key with DES3_CBC_PAD mechainsm
Awarded 2 days ago
Proof possession of private key in libsodium
Awarded 2 days ago
RSA signing - does EMSA-PKCS1-v1_5 padding need to be verified?
Awarded Jan 20 at 19:45
Why does solving the underlying polynomial system “break” the multivariate cryptosystem
Awarded Jan 20 at 15:45
Recognizing and decrypting custom cipher with known plaintext and ciphertext
Awarded Jan 20 at 9:30
Order of g in Paillier Scheme
Awarded Jan 18 at 17:00
Message space when using the group of QR's for El Gamal Encryption
Awarded Jan 18 at 5:35
RSA: How to compute plaintexts knowing ciphertexts, public key and relation between plaintexts
Awarded Jan 17 at 11:45
Question on PKCS11 2.40 spec and AES_CBC wrap
Awarded Jan 16 at 17:45
Is there a library that implements the “Mickey Mouse Version” of asymmetric cryptography?
Awarded Jan 16 at 16:15
How hard is it to guess a 8 digit PIN?
Awarded Jan 15 at 23:55
Checking if point is on EC twist
Awarded Jan 15 at 13:15
How safe is my method
Awarded Jan 15 at 10:10
Is the RSA cipher alike to the Shift/Caesar cipher?
Awarded Jan 14 at 13:05
Sigma protocol when order is unknown
Awarded Jan 14 at 1:10
Can DNA computing to solve elliptic curve algorithms using this method
Awarded Jan 13 at 10:50
Why is the Keyspace of a Substitution Cipher not 2^26 but 2^88
Awarded Jan 13 at 4:55
RSA p and q size to encipher a block
Awarded Jan 12 at 20:45
Encryption for continuous, real-time data over an unreliable connection
Awarded Jan 12 at 19:15
Problem with calculating the correct value for $(p-1)*(q-1)$?
Awarded Jan 11 at 12:10
How a chosen prefix collision is more useful than a standard collision concerning hashing functions?
Awarded Jan 10 at 23:50
How does a key actually work in symmetric ciphers
Awarded Jan 10 at 23:10
Division of Point in Elliptic Curve: Getting Back Point
Awarded Jan 10 at 19:05
Post-Quantum cryptography usability in IoT devices
Awarded Jan 10 at 11:45
What is the use of encoding a hash output?
Awarded Jan 10 at 5:35
Attack on envelop mac
Awarded Jan 9 at 10:40
Finding subgroup in elliptic curve over finite field $ \mathbb{F}_{11}$
Awarded Jan 8 at 11:40
decrypting el gamal encrypted messages in regards to k being used
Awarded Jan 7 at 15:40
Does the Initialization Vector in DES have to be 8 bytes long?
Awarded Jan 7 at 2:25
Is encrypting a file with AES-CTR and then encrypting the AES key with RSA-4096 secure?
Awarded Jan 6 at 12:00
Any good links to learn the maths behind AES?
Awarded Jan 5 at 19:20
Trapdoors for Lattices: CCA-secure encryption
Awarded Jan 5 at 2:45
Is more ECDHE or RSA currently recommended?
Awarded Jan 4 at 13:40
Is this pairing scheme for establishing trust between two devices with self-signed TLS certs secure from MITM?
Awarded Jan 3 at 21:45
Which padding is used for sha256WithRSAEncryption (1.2.840.113549.1.1.11), deterministic or random?
Awarded Jan 3 at 4:45
WEP - shared symmetric keys
Awarded Jan 2 at 16:25
Is it more weak to encrypt with the private key RSA?
Awarded Jan 2 at 15:00
Stream cipher - Many time pad
Awarded Jan 2 at 13:00
What's the utility of the last two messages of Needham Schroeder Symmetric key protocol
Awarded Dec 31 '19 at 13:55
Crypto AES for authentication
Awarded Dec 31 '19 at 11:10
Perfect shuffle possible with limited raw entropy?
Awarded Dec 30 '19 at 16:20
Maximum security strength in bits of ISAAC cipher?
Awarded Dec 29 '19 at 23:30
Is using 7-8 random words from all words of a language as password a good idea?
Awarded Dec 28 '19 at 21:20
What's the truth about this “absolutely unbreakable” cipher?
Awarded Dec 28 '19 at 18:20
Should I use AES CTR mode?
Awarded Dec 27 '19 at 12:50
AES CBC in need of multiple IV's, possible to avoid creating duplicate iv's by using resulting cipher text 16 bytes as next iv?
Awarded Dec 26 '19 at 16:35
What is the weakpoint of PRNG based encryption? [closed]
Awarded Dec 26 '19 at 16:05
Do I have to know RSA padding scheme in advance when verifying signature with EVP_Verify*?
Awarded Dec 26 '19 at 11:15
My RSA decryption doesnt match answer
Awarded Dec 24 '19 at 21:00
Creating Random Pad from XORed Sections of Pi
Awarded Dec 24 '19 at 17:50
Would using perfect S-boxes in F function of an unbalanced Feistel network produce a simple and secure cipher?
Awarded Dec 24 '19 at 13:30
Is it possible to multiplex TLS connections by SNI metadata without knowing any keys?
Awarded Dec 23 '19 at 12:00
Multiple AES Key Derivation from a master key
Awarded Dec 23 '19 at 6:10
Asymmetric or Symmetric encryption
Awarded Dec 21 '19 at 15:05
Should the seed of CSPRNG produce the same random number?
Awarded Dec 20 '19 at 16:45
Zero-knowledge proofs vs. “Identification schemes”? (as in Katz--Lindell)
Awarded Dec 20 '19 at 1:05
Is it possible to recover the seed value from a Mersenne Twister PRNG state?
Awarded Dec 18 '19 at 7:35
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