Dmitry Chestnykh dchest

## uuid.php
<?php

/**
 *  Generate a random UUIDv4.
 *  @return string UUID
 */
function generate_uuid()
{
    $b = random_bytes(16);
    $b[6] = chr(ord($b[6]) & 0x0f | 0x40);

## utils.js
// String ranges: strange('A-Za-z0-9+/') -> "ABCDEFGHIJKLMNOPQRSTUVWXYabcdefghijklmnopqrstuvwxy012345678+/"
const strange = s => s.replace(/(.)-(.)/g, (_, x, y) => { for (var i = x.charCodeAt(0) + 1; i < y.charCodeAt(0); i++) x += String.fromCharCode(i); return x })

// Base64 encoding of Uint8Array of ArrayBuffer and decoding to Uint8Array
const encodeBase64 = a => btoa(Array.from(a instanceof ArrayBuffer ? new Uint8Array(a) : a).map(x => String.fromCharCode(x)).join(''));
const encodeBase64url = a => encodeBase64(a).replace(/\+/g, '-').replace(/\//g, '_').replace(/=/g, ''); // no padding
const decodeBase64 = s => Uint8Array.from(atob(s), x => x.charCodeAt(0));
// TODO: decodeBase64url

## chrome.md

      
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              3 stars
            
          
                dchest
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              Last active Jul 18, 2020
            
              
                How to properly use Chrome
              
          
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Install uBlock Origin extension.
(If you're not from US, check its options to turn on ad block lists for your country)


Do not install any other extensions ever! (exceptions: 1Password, Google Arts & Culture).


Create separate "people" for different activities: e.g. home, work, browsing sketchy websites. (Click on avatar > Manage People)


If you want to turn on sync, set up encryption passphrase. It's a separate passphrase from your Google account — your sync data will be encrypted locally with it before hitting Google servers.


Disable saving/auto fill of passwords, payment, and addresses. (https://twitter.com/Sc00bzT/status/1085521985017466881)


## 3B-Plus.txt
OpenSSL 1.1.0f  25 May 2017
built on: reproducible build, date unspecified
options:bn(64,32) rc4(char) des(long) aes(partial) blowfish(ptr)
compiler: gcc -DDSO_DLFCN -DHAVE_DLFCN_H -DNDEBUG -DOPENSSL_THREADS -DOPENSSL_NO_STATIC_ENGINE -DOPENSSL_PIC -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DAES_ASM -DBSAES_ASM -DGHASH_ASM -DECP_NISTZ256_ASM -DPOLY1305_ASM -DOPENSSLDIR="\"/usr/lib/ssl\"" -DENGINESDIR="\"/usr/lib/arm-linux-gnueabihf/engines-1.1\""
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes  16384 bytes
md2                  0.00         0.00         0.00         0.00         0.00         0.00
mdc2                 0.00         0.00         0.00         0.00         0.00         0.00
md4               8692.17k    34247.02k   107042.56k   230394.14k   347587.38k   357886.63k
md5              24228.71k    74809.73k   155908.93k   211904.17k   238160.55k   239976.45k

## nas.md

      
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                dchest
                / nas.md
            
            
              Last active Feb 14, 2018
            
              
                Duct tape NAS
              
          
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    Photos
https://twitter.com/dchest/status/963536947699486721
Components

Raspberry Pi 3 + heatsinks + power adapter — $42 https://www.aliexpress.com/item/2016-NEW-Original-Raspberry-Pi-3-Model-B-Board-1GB-LPDDR2-BCM2837-64-bit-Quad-Core/32626862737.html


## setup.md

      
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                dchest
                / setup.md
            
            
              Last active Feb 8, 2018
            
              
                Raspberry Pi 3 Desktop
              
          
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    Pics: https://twitter.com/dchest/status/961378520025968640

Raspberry Pi 3 + heatsinks + power adapter - $42
https://www.aliexpress.com/item/2016-NEW-Original-Raspberry-Pi-3-Model-B-Board-1GB-LPDDR2-BCM2837-64-bit-Quad-Core/32626862737.html
Waveshare 10.1" HDMI IPS touchscreen 1280x800 - $98
https://www.aliexpress.com/item/Waveshare-Newest-IPS-Display1280-800-10-1inch-Touch-Screen-LCD-with-Case-for-Multi-mini-PCs/32679734462.html (note: only model B is 1280x800! the other cheaper model has lower resolution)
UGEEK UPS HAT with battery - $23
https://www.aliexpress.com/item/UGEEK-UPS-HAT-with-Battery-for-Raspberry-Pi-3-Model-B-2B-B-Raspberry-Pi-Battery/32786176030.html
KingDian 120 GB SSD - $62
https://www.aliexpress.com/item/KingDian-Newest-item-Portable-SSD-USB-3-0-120GB-240GB-External-Solid-State-Drive-Best-gift/32843026641.html


## gist:e7d1296911f75b0fb4ad0301173a186f
Source: https://groups.google.com/a/list.nist.gov/d/msg/pqc-forum/1lDNio0sKq4/fzAd9fewAAAJ

From: D. J. Bernstein

Compared to Ryo Fujita's table, I would list Giophantus as multivariate,
Lepton as code-based (I see LWE->LPN as crossing the lattices->codes
line), and Mersenne/Ramstake/Three Bears in a separate category. I also
think it's a bit silly for NIST to count (e.g.) two pqRSA submissions.

Another way to categorize submissions is by sizes. This is correlated

## gist:dd3a51ad428c0702675a1f7680ee890b
Analysis of sampling openssl (pid 42557) every 1 millisecond
Process:         openssl [42557]
Path:            /usr/bin/openssl
Load Address:    0x108287000
Identifier:      openssl
Version:         22
Code Type:       X86-64
Parent Process:  bash [37567]

Date/Time:       2017-10-10 20:17:15.049 +0200

## gist:24a66dd3cd4097f8c15eb16645ec394a
IconSizes | string | gtk-menu=48,48:panel-menu=32,32:panel=16,16:gtk-button=32,32:gtk-large-toolbar=48,48:gtk-small-toolbar=32,32

## gimli.js
/** Gimli permutation - https://gimli.cr.yp.to */
function gimli(s) {
    var r, x, y, z,
        a = s[ 0] | s[ 1] << 8 | s[ 2] << 16 | s[ 3] << 24,
        b = s[ 4] | s[ 5] << 8 | s[ 6] << 16 | s[ 7] << 24,
        c = s[ 8] | s[ 9] << 8 | s[10] << 16 | s[11] << 24,
        d = s[12] | s[13] << 8 | s[14] << 16 | s[15] << 24,
        e = s[16] | s[17] << 8 | s[18] << 16 | s[19] << 24,
        f = s[20] | s[21] << 8 | s[22] << 16 | s[23] << 24,
        g = s[24] | s[25] << 8 | s[26] << 16 | s[27] << 24,
	<?php

	/**
	* Generate a random UUIDv4.
	* @return string UUID
	*/
	function generate_uuid()
	{
	$b = random_bytes(16);
	$b[6] = chr(ord($b[6]) & 0x0f \| 0x40);
	// String ranges: strange('A-Za-z0-9+/') -> "ABCDEFGHIJKLMNOPQRSTUVWXYabcdefghijklmnopqrstuvwxy012345678+/"
	const strange = s => s.replace(/(.)-(.)/g, (_, x, y) => { for (var i = x.charCodeAt(0) + 1; i < y.charCodeAt(0); i++) x += String.fromCharCode(i); return x })

	// Base64 encoding of Uint8Array of ArrayBuffer and decoding to Uint8Array
	const encodeBase64 = a => btoa(Array.from(a instanceof ArrayBuffer ? new Uint8Array(a) : a).map(x => String.fromCharCode(x)).join(''));
	const encodeBase64url = a => encodeBase64(a).replace(/\+/g, '-').replace(/\//g, '_').replace(/=/g, ''); // no padding
	const decodeBase64 = s => Uint8Array.from(atob(s), x => x.charCodeAt(0));
	// TODO: decodeBase64url
	OpenSSL 1.1.0f 25 May 2017
	built on: reproducible build, date unspecified
	options:bn(64,32) rc4(char) des(long) aes(partial) blowfish(ptr)
	compiler: gcc -DDSO_DLFCN -DHAVE_DLFCN_H -DNDEBUG -DOPENSSL_THREADS -DOPENSSL_NO_STATIC_ENGINE -DOPENSSL_PIC -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DAES_ASM -DBSAES_ASM -DGHASH_ASM -DECP_NISTZ256_ASM -DPOLY1305_ASM -DOPENSSLDIR="\"/usr/lib/ssl\"" -DENGINESDIR="\"/usr/lib/arm-linux-gnueabihf/engines-1.1\""
	The 'numbers' are in 1000s of bytes per second processed.
	type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 16384 bytes
	md2 0.00 0.00 0.00 0.00 0.00 0.00
	mdc2 0.00 0.00 0.00 0.00 0.00 0.00
	md4 8692.17k 34247.02k 107042.56k 230394.14k 347587.38k 357886.63k
	md5 24228.71k 74809.73k 155908.93k 211904.17k 238160.55k 239976.45k
	Source: https://groups.google.com/a/list.nist.gov/d/msg/pqc-forum/1lDNio0sKq4/fzAd9fewAAAJ

	From: D. J. Bernstein

	Compared to Ryo Fujita's table, I would list Giophantus as multivariate,
	Lepton as code-based (I see LWE->LPN as crossing the lattices->codes
	line), and Mersenne/Ramstake/Three Bears in a separate category. I also
	think it's a bit silly for NIST to count (e.g.) two pqRSA submissions.

	Another way to categorize submissions is by sizes. This is correlated
	Analysis of sampling openssl (pid 42557) every 1 millisecond
	Process: openssl [42557]
	Path: /usr/bin/openssl
	Load Address: 0x108287000
	Identifier: openssl
	Version: 22
	Code Type: X86-64
	Parent Process: bash [37567]

	Date/Time: 2017-10-10 20:17:15.049 +0200
	/** Gimli permutation - https://gimli.cr.yp.to */
	function gimli(s) {
	var r, x, y, z,
	a = s[ 0] \| s[ 1] << 8 \| s[ 2] << 16 \| s[ 3] << 24,
	b = s[ 4] \| s[ 5] << 8 \| s[ 6] << 16 \| s[ 7] << 24,
	c = s[ 8] \| s[ 9] << 8 \| s[10] << 16 \| s[11] << 24,
	d = s[12] \| s[13] << 8 \| s[14] << 16 \| s[15] << 24,
	e = s[16] \| s[17] << 8 \| s[18] << 16 \| s[19] << 24,
	f = s[20] \| s[21] << 8 \| s[22] << 16 \| s[23] << 24,
	g = s[24] \| s[25] << 8 \| s[26] << 16 \| s[27] << 24,