ggrandes

#!/bin/bash
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Original Source:
# https://gist.github.com/ggrandes/c1765904e804db15b8c57d90299d006f
#

ggrandes

#!/usr/bin/perl -wT
# https://gist.github.com/ggrandes/df7151b9e2fca02da93acf44bedf7b43
use strict;
my $op = ($ARGV[0] || "");
my $text = ($ARGV[1] || "");
if (length($text) < 1) {
  print_usage();
} elsif (($op eq "-e") || ($op eq "--encode")) {
  print encode_rfc3548($text), "\n";
} elsif (($op eq "-d") || ($op eq "--decode")) {

ggrandes

#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, char *argv[])
{
    char *line = NULL;
    size_t len = 0;
    ssize_t read;

ggrandes

#!/bin/bash
# Original Source:
# https://gist.github.com/ggrandes/09bc477ac20b8fcb0565d68b8aebe40e
#
date_log () {
  printf '%(%Y-%m-%dT%H:%M:%S%z)T %s\n' -1 "$*"
}
recipients=(--trust-model always)
recipients+=(--keyring "./user.pub" --secret-keyring "./user.sec")
for i in user-*.pub; do {

ggrandes

# Original Source:
# https://gist.github.com/ggrandes/a57c401f1bad6bd0ffd87a557b7b5790

# SIGN / VERIFY
openssl cms -sign -keyid -md sha256 -nodetach -binary -in /etc/passwd -signer user.crt -inkey user.key -out x.smime -outform SMIME
openssl cms -verify -CAfile ca.crt -in x.smime -inform SMIME

# ENCRYPT / DECRYPT
openssl cms -encrypt -keyid -aes-256-cbc -in /etc/passwd -binary -out x.smime -outform SMIME user.crt 
openssl cms -decrypt -in x.smime -inform SMIME -recip user.crt -inkey user.key 

ggrandes

#!/bin/bash
# Original Source:
# https://gist.github.com/ggrandes/4a2cfef2fdf102420121
#
sed 's/$/\r/' | curl -q -f -sS -m 180 --retry 3 \
  --url "smtp://mailhost:25" \
  --mail-from "test.from@noreply.acme.com" \
  --mail-rcpt "test.to@acme.com" \
  --user "user@acme.com:password" \
  --upload-file /dev/stdin <<"END"

ggrandes

# Original Source:
# https://gist.github.com/ggrandes/2564f7815cfa6c2e9b61

# Generate ECDSA Key-Pair
openssl ecparam -name secp521r1 -genkey -out test.key
openssl ec -pubout -in test.key -out test.pub
# Signature
openssl dgst -sha512 -sign test.key some-file.txt | openssl enc -a -e > some-file.txt.sign
# Verify
openssl enc -a -d < some-file.txt.sign | openssl dgst -sha512 -verify test.pub -signature /dev/stdin some-file.txt

ggrandes

#!/bin/bash
# Original Source:
# https://gist.github.com/ggrandes/4cf69a924ccbfcb1253c
#
# Generate Self-Signed certificates (not for production)
# Default Password por PKCS12 file is "changeit"
# Default Expire 5 years
EXPIRE_DAYS=${EXPIRE_DAYS:-$[365 * 5 + 1]}
usage () {
  echo "$0 <client|server> <CN> <outputname>"

ggrandes

#!/bin/bash
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

ggrandes

#!/bin/bash
# Original Source:
# https://gist.github.com/ggrandes/b6af6654fb8f5126db6a
#
# 2016-02-27, v1, ggrandes
# Get Machine Information
get_machine_info () {
  local DEVS DEV_IDS
  local UPTIME IDLE
  DEVS=(/sys/class/net/eth*)