Linked Questions

0 votes
1 answer
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Multiplication two points in elliptic curve cryptography [duplicate]

Are there references or prove to say that multiplying two points in the elliptic curve cryptography ECC is not allowed, as an example below? Multiply the public key PKA by a point (Z) on the ECC since ...
user8338650's user avatar
0 votes
0 answers
70 views

How to get a common coordinate from two different coordinates on Elliptic Curves? [duplicate]

I am trying to write a SageMath script that multiplies two coordinates on Elliptic Curves into one common coordinate. SageMath Elliptic curves over finite fields ...
Dew Debra's user avatar
12 votes
1 answer
3k views

Why Static RSA and Diffie-Hellman cipher suites have been removed in TLS 1.3?

Why Static RSA and Diffie-Hellman cipher suites have been removed in TLS 1.3? How keys can be exchanged then? https://datatracker.ietf.org/doc/html/draft-ietf-tls-tls13-28
Nathan Aw's user avatar
  • 2,337
1 vote
2 answers
3k views

What is the difference between "Elliptic Curve Function" and "Hash Functions" like SHA256?

I am reading about bitcoin and I am a little confused about "elliptic curve function" and "SHA256". Do they have the same properties? Can both be used to generate private and ...
Narayan Choudhary's user avatar
1 vote
2 answers
2k views

multiplication of two points belong to elliptic curve

I have a question about multiplication of two points belong to elliptic curve. I know every think about adding and scalar multiplication but not about multiplication of two points. Is there any method ...
tesoke's user avatar
  • 181
0 votes
2 answers
372 views

Is it possible to give a definition for point multiplication on elliptic curve?

As we know that at least in cryptography, the group operation on elliptic curve is just the point addition(https://en.wikipedia.org/wiki/Elliptic_curve_point_multiplication), which is defined on $E:y^{...
Eric_Qin's user avatar
  • 807
2 votes
1 answer
532 views

How can I understand the math behind crypto, especially that used in blockchains / distributed ledgers?

A bit of a background about me; Computer Engineer but during my studies I didn't dive too deep into the maths, especially the crypto maths that is used to make the blockchain and cryptography work. I'...
Muhammad Yasir's user avatar
1 vote
1 answer
378 views

Homomorphic mapping between elliptic curve point and Zq

I'm trying to figure out how to do a mapping between elliptic curve points and Zq without breaking homomorphic properties. Sorry, I'll write the problem in multiplicative notation because it's easier. ...
pintor's user avatar
  • 558
3 votes
0 answers
296 views

Elliptic Curve how to calculate y value [duplicate]

I have been reading the book Mastering Bitcoin written by Andreas. It was the process of compressing public keys that hurt my mind. Specifically, a public key after being generated from a private key ...
John Pham's user avatar