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Cryptography

Famous Question

 Famous Question
Question with 10,000 views. This badge can be awarded multiple times.
Awarded 819 times.
Are all possible EC private keys valid?
Awarded Sep 4 at 17:00
Why plain RSA encryption does not achieve CPA-security?
Awarded Sep 3 at 13:10
Why are the first few bytes of a gpg encryption always the same?
Awarded Aug 25 at 8:55
Why should one prefer Salsa20 over ChaCha?
Awarded Aug 24 at 20:40
Estimating bits of entropy
Awarded Aug 15 at 10:20
Explanation of each of the parameters used in ECC
Awarded Aug 11 at 16:10
Significance of 3mod4 in squares and square roots mod n?
Awarded Aug 5 at 18:26
What is the fastest integer factorization to break RSA?
Awarded Aug 3 at 3:50
Difference between symmetric and asymmetric hash function?
Awarded Jul 23 at 22:11
Is it safe to seed a random number generator from system time?
Awarded Jul 22 at 18:01
In which cases AES doesn't need IV?
Awarded Jul 19 at 21:34
Plain text size limits for AES-GCM mode just 64GB?
Awarded Jul 2 at 23:26
Strength of multiple hash iterations?
Awarded Jul 2 at 17:19
Efficient AES - Use of T-tables
Awarded Jul 1 at 5:13
Are SHA-256 and SHA-512 collision resistant?
Awarded Jun 30 at 1:41
How can we get CA's public key?
Awarded Jun 28 at 14:55
In RSA, how does the CPU deal with this huge modulus (8192 bits)?
Awarded Jun 14 at 21:16
Why is plain-hash-then-encrypt not a secure MAC?
Awarded Jun 12 at 10:06
How do I create an effective salt?
Awarded Jun 3 at 16:16
What Diffie-Hellman parameters should I use?
Awarded Jun 3 at 10:41
Step-by-step conversion of Private Key in Hex to WIF (Wallet Import Format)
Awarded May 28 at 23:34
OpenSSL EC PRIVATE KEY content structure details
Awarded May 28 at 18:51
Is there a cipher related to colors and letters?
Awarded May 28 at 16:06
How does the sender obtain the receiver's public key?
Awarded May 23 at 11:58
What do the signature security abbreviations like EUF-CMA mean?
Awarded May 21 at 8:32
Why is Curve25519 in the GPG “expert” options?
Awarded May 9 at 19:16
Polynomial-time Quantum Algorithms for Lattice Problems
Awarded Apr 29 at 20:42
What is the difference between a Vigenère cipher and a one time pad cipher?
Awarded Apr 28 at 21:36
How to factor an RSA256 public key with YAFU?
Awarded Apr 26 at 21:37
Why hashing twice?
Awarded Apr 22 at 7:10
How does AES GCM encryption work
Awarded Apr 21 at 16:40
What is the public key length of RSA and Ed25519?
Awarded Apr 16 at 6:40
uniform vs. non-uniform PPT
Awarded Apr 9 at 9:04
How does AWS Secret key and access key work
Awarded Apr 4 at 5:55
generate RSA public key having public modulus and exponent [closed]
Awarded Apr 2 at 11:30
Should I use RSA encryption since RSA is said to be broken by NSA?
Awarded Mar 29 at 21:41
How does AES/CTR/PKCS5Padding works when the bits to encrypt is more than 8 bits
Awarded Mar 27 at 17:06
What's the best programming language for cryptography? (beginner) [closed]
Awarded Mar 13 at 21:11
Hill's Cipher - Known Plaintext Attack
Awarded Mar 10 at 6:09
Finding length of a key for a given vigenere cipher using Index of Coincidence
Awarded Feb 29 at 19:11
Reverse engineering secret key in RSA encryption with the help of signature
Awarded Feb 26 at 3:07
How does the MOV attack work?
Awarded Feb 23 at 10:35
Breaking RSA using Chinese Remainder Theorem
Awarded Feb 22 at 16:27
One-time pad and zero key
Awarded Feb 13 at 1:40
What's a cryptographic primitive, really?
Awarded Feb 6 at 17:49
What is the time complexity of computing a cryptographic hash function/random oracle?
Awarded Jan 30 at 15:08
Affine cipher: calculate the key from a known plaintext/ciphertext pair
Awarded Jan 29 at 6:06
"Weaknesses" in SHA-256d?
Awarded Jan 27 at 11:20
What is a generator?
Awarded Jan 23 at 10:15
Difference between $Z^*_n$ and $Z_n$ [closed]
Awarded Jan 18 at 12:50
What does an RSA signature look like?
Awarded Jan 16 at 14:55
What exactly is Let's encrypts chain.pem file?
Awarded Jan 10 at 16:12
Is there a secure cryptosystem that can be performed mentally?
Awarded Jan 10 at 5:25
curve25519 by openSSL
Awarded Jan 9 at 10:06
How to solve encryption with ASCII output
Awarded Jan 9 at 6:56
How is EC key encoded in PKCS#8?
Awarded Jan 7 at 20:17
PKCS12 password of container and private key
Awarded Dec 22, 2023 at 22:20
What is the ideal cipher model?
Awarded Dec 18, 2023 at 9:50
Is it possible to get an RSA encryption key by comparing the unencrypted and encrypted file?
Awarded Dec 17, 2023 at 14:41
Why don't we use Blowfish if it hasn't been cracked?
Awarded Dec 16, 2023 at 12:01
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