Gabriel Bauman gabrielbauman

the grand idea

I like public key auth. I feel safer using them instead of a username and password login. But, I might not have my private key with me at a time where I need access.

I started using yubikey with LastPass and since I have it always on my keychain, I decided to find more ways to make use of it.

I wasn't originally aware, but if you pass a private key to ssh and sshd is configured to accept a key, it appears pam isn't used. Your authorized keys are checked and you are logged in. If you don't pass a private key, ssh falls back to the more standard un*x style login found in /etc/pam.d/sshd. This is where we'll add the yubikey pam. I am currently unaware of a way to use both public key auth and yubikey for login.

These steps worked for me on debian squeeze/wheezy.

more info at the yubico-pam github repo

HTTP Streaming (or Chunked vs Store & Forward)

The standard way of understanding the HTTP protocol is via the request reply pattern. Each HTTP transaction consists of a finitely bounded HTTP request and a finitely bounded HTTP response.

However it's also possible for both parts of an HTTP 1.1 transaction to stream their possibly infinitely bounded data. The advantages is that the sender can send data that is beyond the sender's memory limit, and the receiver can act on

Root OnePlus5 without unlocking the bootloader

Gain adb root.

$ adb shell am start -n com.android.engineeringmode/.qualcomm.DiagEnabled --es "code" "angela"

Download Magisk-v14.0 and extract it somewhere. Download MagiskManager.

ThinkPad T480 fingerprint reader on Fedora Linux

Background

The Synaptics fingerprint sensor (06cb:009a) present on my T480 is not supported by libfprint and fprintd as it requires a non-free binary blob. uunicorn created open-fprintd, a replacement for fprintd, that allows for loading of binary blobs. In conjunction with their python-validity driver we are able to make use of the inbuilt fingerprint reader. The following instructions were tested against Fedora Linux 35.

Installing `open-fprintd` and `python-validity`

sudo dnf copr enable tigro/python-validity
sudo dnf install open-fprintd fprintd-clients fprintd-clients-pam python3-validity

	<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.seitenbau.demo.maven</groupId>
	<artifactId>maven-properties-replace</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<build>
	<plugins>

	package core;

	public class Base58 {

	private static final char[] ALPHABET = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
	.toCharArray();
	private static final int BASE_58 = ALPHABET.length;
	private static final int BASE_256 = 256;

	private static final int[] INDEXES = new int[128];

	/*

	~~ Snowball Poem ~~
	Snowball (also called a Chaterism): A poem in which each line is a single word,
	and each successive word is one letter longer. One of the constrained writing
	techniques invented by the Oulipo (Workshop of Potential Literature).


	~~ Program Description ~~
	This program takes input from the file "input-raw.txt". It examines the file for

-#Delete local tags.
-git tag -l | xargs git tag -d
-#Fetch remote tags.
-git fetch
-#Delete remote tags.
-git tag -l | xargs -n 1 git push --delete origin
-#Delete local tasg.
-git tag -l | xargs git tag -d

	import java.util.Arrays;

	import org.springframework.boot.web.client.RestTemplateBuilder;
	import org.springframework.cloud.client.loadbalancer.LoadBalanced;
	import org.springframework.context.annotation.Bean;
	import org.springframework.context.annotation.Configuration;
	import org.springframework.hateoas.MediaTypes;
	import org.springframework.hateoas.hal.Jackson2HalModule;
	import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
	import org.springframework.web.client.RestTemplate;