tsenger’s gists

tsenger / PACEPinpadTester.java

Created March 9, 2016 13:30

Test for PACE per PCSC reader with pinpad


	package de.tsenger.sandbox;

	import java.io.ByteArrayOutputStream;
	import java.io.IOException;

	import javax.smartcardio.Card;
	import javax.smartcardio.CardException;
	import javax.smartcardio.CardTerminal;
	import javax.smartcardio.TerminalFactory;

tsenger / jc_HmacSha256.java

Created October 23, 2017 14:43

JavaCard implementation of HMAC SHA256

	private short computeHmacSha256(byte[] key, short key_offset, short key_length,
	byte[] message, short message_offset, short message_length,
	byte[] mac, short mac_offset){

	short BLOCKSIZE=64;
	short HASHSIZE=32;

	// compute inner hash
	for (short i=0; i<key_length; i++){
	hmacBuffer[i]= (byte) (key[(short)(key_offset+i)] ^ (0x36));

tsenger / letsencrypt_notes.sh

Created March 23, 2018 15:16 — forked from lachesis/letsencrypt_notes.sh

Set up LetsEncrypt using acme.sh without root

	# How to use "acme.sh" to set up Lets Encrypt without root permissions
	# See https://github.com/Neilpang/acme.sh for more

	# This assumes that your website has a webroot at "/var/www/<domain>"
	# I'll use the domain "EXAMPLE.com" as an example

	# When this is done, there will be an "acme" user that handles issuing,
	# updating, and installing certificates. This account will have the following
	# (fairly minimal) permissions:
	# - Host files at http://EXAMPLE.com/.well-known/acme-challenge

tsenger / CardDav2GrandstreamXML.py

Created December 20, 2018 08:25

Converter for CardDav phonebook to Grandstream DP720 / DP750 XML phonebook

	#Convert CardDav contacts to GrandStream DP720 / DP750 XML phonebook

	import vobject

	vcf_path = "./contacts.vcf"
	xml_path = './xml_contacts.xml'

	# phone number: CardDav to Grandstream
	map_number_types = {
	"work": "Work",

tsenger / KaBonDecoder.java

Created September 14, 2020 06:34

Decoder für Kassenbon QR-Codes nach DSFinV-K (www.bzst.de/DE/Unternehmen/Aussenpruefungen/DigitaleSchnittstelleFinV/digitaleschnittstellefinv_node.html)

	package de.tsenger.kasper.decoder;

	import org.spongycastle.asn1.ASN1GeneralizedTime;
	import org.spongycastle.asn1.ASN1Integer;
	import org.spongycastle.asn1.ASN1ObjectIdentifier;
	import org.spongycastle.asn1.ASN1UTCTime;
	import org.spongycastle.asn1.DEROctetString;
	import org.spongycastle.asn1.DERPrintableString;
	import org.spongycastle.asn1.DERSequence;
	import org.spongycastle.asn1.DERTaggedObject;

tsenger / expanse_aes_key.py

Created August 27, 2024 12:00

Expanse an AES-128 key to 16 round keys

	# Expanse an AES-128 key to 16 round keys

	import sys

	# AES S-Box
	s_box = [
	0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
	0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
	0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
	0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,

Tobias Senger tsenger