Marek marekyggdrasil
marekyggdrasil
/ ecc.py
Last active May 25, 2021
Source code and results for the Schnorr signature tutorial available under https://mareknarozniak.com/2021/05/25/schnorr-signature/
View ecc.py
| import numpy as np | |
| # ECC addition in R | |
| def eccContAddition(Px, Py, Qx, Qy, a, b): | |
| if np.isclose([Px], [Qx])[0]: | |
| m = (3.*Px**2.+a)/(2.*Py) | |
| else: | |
| m = (Py-Qy)/(Px-Qx) | |
| Rx = m**2 - Px - Qx |
marekyggdrasil
/ aes.py
Last active Apr 24, 2021
Examples for tutorial on symmetric ciphers available under https://mareknarozniak.com/2021/04/22/symmetric/
View aes.py
| from Crypto.Cipher import AES | |
| from getpass import getpass | |
| ciphertext = None | |
| with open('ciphertext3.txt', 'r') as file: | |
| ciphertext = bytes.fromhex(file.read()) | |
| password = getpass('Password: ') | |
| key = bytes(password, 'ascii') | |
| key = key + b'\x00'*(16-len(key)) |
marekyggdrasil
/ ecc.py
Last active Mar 16, 2021
Tutorial covering the Eliptic Curve Digital Signature Algorithm (ECDSA) available under https://mareknarozniak.com/2021/03/16/ecdsa/
View ecc.py
| import numpy as np | |
| # ECC addition in R | |
| def eccContAddition(Px, Py, Qx, Qy, a, b): | |
| if np.isclose([Px], [Qx])[0]: | |
| m = (3.*Px**2.+a)/(2.*Py) | |
| else: | |
| m = (Py-Qy)/(Px-Qx) | |
| Rx = m**2 - Px - Qx |
marekyggdrasil
/ distrib.png
Last active Jan 27, 2021
A source code for a probability plots for a trustless Mimblewimble transaction aggregator based on scalable BFT https://mareknarozniak.com/2021/01/27/aggrematon/
marekyggdrasil
/ plotting.py
Last active May 8, 2021
Tutorial covering the concept of geometric phase for a qubit, tutorial available under https://mareknarozniak.com/2021/01/09/qubit-berry-phase/
View plotting.py
| import matplotlib.pyplot as plt | |
| def plotQubit(angles, refrel, refimag, resrel, resimag, title, x_axis, filename, url=''): | |
| fig, ax = plt.subplots(1, 1, constrained_layout=True) | |
| ax.set_title(title) | |
| x_axis += '\n' + url | |
| ax.set_xlabel(x_axis) | |
| ax.set_ylabel('phase') |
marekyggdrasil
/ index.js
Last active Dec 10, 2020
node.js example on how to connect to the grin-wallet owner API based on: it is a modified official example from here: https://github.com/mimblewimble/grin-wallet/tree/1ced8990b9e21fa17c788d93a151ec1164ebbce5/doc/samples/v3_api_node
View index.js
| /* Sample Code for connecting to the V3 Secure API via Node | |
| * | |
| * With thanks to xiaojay of Niffler Wallet: | |
| * https://github.com/grinfans/Niffler/blob/gw3/src/shared/walletv3.js | |
| * | |
| */ | |
| const http = require('http'); | |
| const crypto = require('crypto'); |
marekyggdrasil
/ ecc.py
Last active Jan 11, 2021
Tutorial covering the concept of Elliptic Curve Cryptography and Diffie-Hellman Key Exchange, tutorial available under https://mareknarozniak.com/2020/11/30/ecdh/
View ecc.py
| import numpy as np | |
| # ECC addition in R | |
| def eccContAddition(Px, Py, Qx, Qy, a, b): | |
| if np.isclose([Px], [Qx])[0]: | |
| m = (3.*Px**2.+a)/(2.*Py) | |
| else: | |
| m = (Py-Qy)/(Px-Qx) | |
| Rx = m**2 - Px - Qx |
marekyggdrasil
/ phi1.cnf
Last active Jul 13, 2020
CNF files for online tutorial covering the concept of SAT and boolean satisfiability in general, tutorial available under https://mareknarozniak.com/2020/07/13/satisfiability/
View phi1.cnf
| p cnf 3 3 | |
| 1 -2 3 0 | |
| 1 2 -3 0 | |
| -1 -2 3 0 |
marekyggdrasil
/ diophantine.py
Last active Jun 25, 2020
Code repository for tutorial on constraint programming available on https://mareknarozniak.com/2020/06/22/constraint-programming/
View diophantine.py
| from constraint import Problem | |
| problem = Problem() | |
| problem.addVariable('x', range(1, 10)) | |
| problem.addVariable('y', range(1, 10)) | |
| problem.addVariable('z', range(1, 10)) | |
| def constraintCheck(x, y, z): |
marekyggdrasil
/ mario_sprite.bmp
Last active Jun 9, 2020
A code repository for tutorial https://mareknarozniak.com/2020/06/09/simulating-superdense-coding/
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