nlitsme

from __future__ import print_function, division
"""
Example of how calculations on the secp256k1 curve work.
secp256k1 is the name of the elliptic curve used by bitcoin
see http://bitcoin.stackexchange.com/questions/25382
"""

## the prime modules used in the elliptic curve coordinate calculations
p = 2**256 - 2**32 - 977

nlitsme

from __future__ import print_function, division
"""
By Willem Hengeveld <itsme@xs4all.nl>

ecdsa implementation in python

demonstrating several 'unconventional' calculations,
like finding a public key from a signature,
and finding a private key from 2 signatures with identical 'r'
"""

nlitsme

from bsddb.db import *
import sys
import struct

# by Willem Hengeveld <itsme@xs4all.nl>
# usage:  python dumpwallet  path_to_your/wallet.dat
# note: you need to have the bsddb package installed

def getcompact(k, i):
    b= ord(k[i]) ; i+=1

nlitsme

#!perl -w
# by Willem Hengeveld <itsme@xs4all.nl>
# license: http://en.wikipedia.org/wiki/Beerware

use strict;
$|=1;
# this script decodes raw smsses, as used with the
# AT+CMT, or AT+CMGR, or AT+CMGS  commands

# either parses hex strings on the commandline, or from stdin.

nlitsme

#!/usr/local/bin/python
"""
Reads message from stdin, pgp encrypts, launch mailto: url to send with mail app.

I use this to send pgp messages from within vim.

First i type a message like this:
----
Subject: test
To: person@example.com

nlitsme

#!/bin/bash

bkdir=
while [[ -n "$1" ]]; do
    cd $(dirname "$1")
    realpath=$(pwd -P)
    case "$realpath" in
       /Volumes/*)
            realpath=${realpath:9}
            ;;

nlitsme

#!/bin/bash
if [[ $(id -u) -ne 0 ]]; then
    sudo $0 "$@"
    exit $?
fi
diff <(sleep 1 ; lsof -n -P| grep -v "^\(sleep\|lsof\|grep\|diff\|bash\)" ) <(lsof -n -P| grep -v "^\(sleep\|lsof\|grep\|diff\|bash\)" )

nlitsme

#!/bin/sh
tr -d "\r" | tr "\n\\" "\0/" | xargs -0 "$@"

nlitsme

#!/usr/sbin/dtrace -s
syscall::open*:entry {
    this->exe= execname;
    this->file= copyinstr(arg0);
    this->mode= arg1;
}
syscall::open*:return {
    printf("%4d (%4d) %-20s\tM%07o  %s",arg0, errno, this->exe, this->mode, this->file);
}

nlitsme

#!/usr/sbin/dtrace -s
 
#pragma D option quiet
 
syscall::exec*:entry
{
    printf("exec %s -> %s\n", execname, copyinstr(arg0));
}

proc:::exec-failure