Woodstock
  • Member for 2 years, 9 months
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  • Ireland
2 answers
214 votes
113k views
143 bookmarks
What are the differences between a digital signature, a MAC and a hash?
3 answers
51 votes
23k views
32 bookmarks
Why Curve25519 for encryption but Ed25519 for signatures?
1 answers
22 votes
4k views
11 bookmarks
Why are the lower 3 bits of curve25519/ed25519 secret keys cleared during creation?
1 answers
16 votes
3k views
7 bookmarks
After ECDH with Curve25519, is it pointless to use anything stronger than AES-128?
4 answers
15 votes
27k views
7 bookmarks
How does one calculate the scalar multiplication on elliptic curves?
3 answers
13 votes
11k views
8 bookmarks
Has AES-128 been fully broken?
3 answers
13 votes
8k views
5 bookmarks
Why are asymmetric cryptography keys more vulnerable to brute force attack than symmetric ones?
1 answers
12 votes
2k views
4 bookmarks
How many bits of entropy does an elliptic curve key of length n provide?
1 answers
10 votes
3k views
3 bookmarks
What should be used as a source for entropy?
2 answers
10 votes
4k views
5 bookmarks
Ed25519 is a signature or just elliptic curve
1 answers
9 votes
6k views
2 bookmarks
ECDH or RSA more secure for symmetric key wrapping?
2 answers
8 votes
3k views
4 bookmarks
Why are NaCl secret keys 64 bytes for signing, but 32 bytes for box?
2 answers
8 votes
2k views
2 bookmarks
Raw curve25519 public key points
1 answers
8 votes
3k views
2 bookmarks
ECDSA security using same per-message secrets $k$ but different signing keys
2 answers
7 votes
2k views
1 bookmarks
Why does Smart's attack only work on anomalous curves?
0 answers
6 votes
251 views
2 bookmarks
Cryptographically Secure Elliptic Curve
2 answers
5 votes
3k views
2 bookmarks
Why Smart's attack doesn't work on this ECDLP?
2 answers
5 votes
2k views
4 bookmarks
What is a multi-target attack?
1 answers
5 votes
2k views
2 bookmarks
Hashing a Diffie-Hellman result
1 answers
5 votes
1k views
1 bookmarks
EdDSA (Ed25519) is any random number sufficient for a good private key?
1 answers
5 votes
4k views
1 bookmarks
What are the differences between ephemeral-static ECDH and static-static ECDH?
2 answers
5 votes
1k views
1 bookmarks
libsodium x25519 and Ed25519 small order check
1 answers
3 votes
1k views
1 bookmarks
Public Key generation for Ed25519 vs X25519
1 answers
3 votes
849 views
2 bookmarks
Composition of X25519+XSalsa20+Poly1305
2 answers
3 votes
2k views
1 bookmarks
Would SHA-256(SHA-256(x)) produce collisions?
1 answers
3 votes
229 views
1 bookmarks
Likelihood of signature collision with EdDSA
1 answers
2 votes
398 views
1 bookmarks
best padding scheme for RSA
1 answers
2 votes
500 views
1 bookmarks
What is the maximum number of messages that can be encrypted using the same key for CTR mode?
1 answers
1 votes
836 views
1 bookmarks
Using ECDH for encryption and decryption
2 answers
1 votes
408 views
1 bookmarks
Does character encoding change entropy?