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Nathan Moinvaziri nmoinvaz

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@nmoinvaz
nmoinvaz / settings.json
Last active August 13, 2019 23:08
Visual Studio Code Settings
{
"editor.fontSize": 12,
"editor.renderWhitespace": "all",
"breadcrumbs.enabled": true,
"workbench.colorTheme": "Atom One Dark",
"window.titleBarStyle": "custom",
"window.zoomLevel": -1,
"editor.minimap.enabled": false,
"python.pythonPath": "c:\\python27\\",
"terminal.explorerKind": "external",
@nmoinvaz
nmoinvaz / powershell-base64-thumbprint.md
Last active April 30, 2020 21:28
Using PowerShell to generate new code signing certificate with base64 thumbprint

To create the code signing certificate using PowerShell (using Administrator prompt):

$cert = New-SelfSignedCertificate -Subject "My Certificate" -Type CodeSigning -CertStoreLocation Cert:\CurrentUser\My -NotAfter (Get-Date).AddYears(100)

To export the certificate from the certificate store:

$certPassword = ConvertTo-SecureString -String "passwordhere" -Force –AsPlainText
$cert | Export-PfxCertificate -FilePath "mycert.pfx" -Password $certPassword

To get the base64 string of the SHA1 thumbprint of a PFX certificate use the following:

@nmoinvaz
nmoinvaz / compare258.c
Last active May 25, 2020 14:22
Zlib-ng compare258
/* compare258.c -- compare258 variants for use in longest_match
* Copyright (C) 2020 Nathan Moinvaziri
* For conditions of distribution and use, see copyright notice in zlib.h
*/
// ALIGNED, byte comparison
static inline int32_t compare258(const unsigned char *src0, const unsigned char *src1) {
register const unsigned char *src0start = src0;
register const unsigned char *src0end = src0 + 258; // 258 % 6 = 0
@nmoinvaz
nmoinvaz / compare258.txt
Created February 22, 2020 04:31
zlib compare258 results
len: 0
compare258 average ms: 1
compare258_unaligned_16 average ms: 1
compare258_unaligned_32 average ms: 1
compare258_unaligned_64 average ms: 1
compare258_unaligned_128 average ms: 1
len: 1
compare258 average ms: 1
compare258_unaligned_16 average ms: 1
compare258_unaligned_32 average ms: 1
@nmoinvaz
nmoinvaz / compare258_test.c
Last active May 25, 2020 13:46
Zlib-ng test for compare258 returning proper match length
/* compare258_test.c -- test compare258 result lengths
* Copyright (C) 2020 Nathan Moinvaziri
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/*
cmake . -DBUILD_SHARED_LIBS=OFF
add_executable(compare258_test compare258_test.c)
configure_test_executable(compare258_test)

pigzCustom.exe is built off nmoinvaz/zlib-ng branch improvements/update-hash-v3.

(base) C:\Users\nathan\Source\pigz-bench-python>python ./b_speed_threads.py
Skipping test: Unable to find "gzip"
exe     level   ms      mb/s    %       threads
pigzCloudflare.exe      3       416     138     47.30   0
pigzCloudflare.exe      6       552     104     46.68   0
pigzCloudflare.exe      9       771     74      46.60   0
pigzCloudflare.exe      3       1842    31      47.31   1
@nmoinvaz
nmoinvaz / compare258_results.md
Last active March 29, 2020 18:55
compare_258_results.md

pigznmoinvaz.exe is built off nmoinvaz/zlib-ng branch improvements/compare-258.

(base) PS E:\pigz-bench-python> python .\b_speed_threads.py
Skipping test: Unable to find "gzip"
exe     level   ms      mb/s    %       threads
pigzCloudflare.exe      3       212     270     47.30   0
pigzCloudflare.exe      6       281     203     46.68   0
pigzCloudflare.exe      9       408     140     46.60   0
pigzCloudflare.exe      3       778     74      47.31   1
@nmoinvaz
nmoinvaz / powershell-cert.md
Last active January 22, 2023 18:11
Powershell Commands for Certificates

Self-signed Code Signing Certificate

To create the code signing certificate using PowerShell (using Administrator prompt):

$cert = New-SelfSignedCertificate -Subject "My Certificate" -Type CodeSigning -CertStoreLocation Cert:\CurrentUser\My -NotAfter (Get-Date).AddYears(100)

To export the certificate from the certificate store:

$certPassword = ConvertTo-SecureString -String "passwordhere" -Force –AsPlainText
$cert | Export-PfxCertificate -FilePath "mycert.pfx" -Password $certPassword
@nmoinvaz
nmoinvaz / hash_test.py
Last active May 9, 2020 07:58
Testing hash functions in python for zlib-ng
import matplotlib.pyplot as plt
import numpy as np
import random
import timeit
import time
import math
import argparse
import zlib
from random import seed
import struct
@nmoinvaz
nmoinvaz / hash_benchmark.cc
Last active May 25, 2020 13:43
Google benchmark for zlib-ng hashing functions
/* hash_benchmark.cc -- test hash function variants
* Copyright (C) 2020 Nathan Moinvaziri
* For conditions of distribution and use, see copyright notice in zlib.h
*/
/*
cmake . -A Win32 -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreadedDLL -DBUILD_SHARED_LIBS=OFF
cmake_minimum_required(VERSION 3.17)