Roberto Ostinelli ostinelli

## openssl_common_operations.md

      
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                OpenSSL common operations.
              
          
    Open SSL common operations

Generate a new Private key and Certificate Signing Request

$ openssl req -out server.csr -new -newkey rsa:2048 -nodes -keyout server.key
Generate a self-signed certificate and private key

$ openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout server.key -out server.crt

  
## jenkins_ci_on_osx.md

      
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                Setup Jenkins CI on OSX.
              
          
    Jenkins CI on OSX

Instructions on how to setup a secured Jenkins CI on a Mac.
Download & Install dependencies

All of these operations are done with your admin user.
Developer tools

Install the command line developer tools.


## jenkins_ci_on_ubuntu.md

      
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              February 14, 2023 07:12
            
              
                Setup Jenkins CI on Ubuntu.
              
          
    Jenkins CI

Instructions on how to setup a secured Jenkins CI.
Install Jenkins

$ wget -q -O - https://jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add -
$ sudo sh -c 'echo deb http://pkg.jenkins-ci.org/debian binary/ > /etc/apt/sources.list$ .d/jenkins.list'
$ sudo apt-get update
$ sudo apt-get install jenkins


## resource_monitor.sh
#!/usr/bin/env bash

# settings
OUTPUT_FILE=monitor.csv

# build command
cmd=""
cpu_headers=""
for (( i=4; i<=$(nproc)+4; i++ ))
do

## ecdsa_example.rb
require 'openssl'
require 'base64'

# ===== \/ sign =====
# generate keys
key = OpenSSL::PKey::EC.new("secp256k1")
key.generate_key
public_key = key.public_key
public_key_hex = public_key.to_bn.to_s(16).downcase # public key in hex format
	#!/usr/bin/env bash

	# settings
	OUTPUT_FILE=monitor.csv

	# build command
	cmd=""
	cpu_headers=""
	for (( i=4; i<=$(nproc)+4; i++ ))
	do
	require 'openssl'
	require 'base64'

	# ===== \/ sign =====
	# generate keys
	key = OpenSSL::PKey::EC.new("secp256k1")
	key.generate_key
	public_key = key.public_key
	public_key_hex = public_key.to_bn.to_s(16).downcase # public key in hex format