lukeisontheroad’s gists

thejohnfreeman / gist:519c0bdea684a8d41e6e8e7b03dbe426

Created January 14, 2020 15:22

secp256k1

	secp256k1 is just one popular curve for the Elliptic Curve Digital Signature algorithm (ECDSA).
	An ECDSA key is a 256-bit value.
	ECDSA will sign a 256-bit value.
	If you want to sign a message of arbitrary length, it is customary to first hash the message to a 256-bit value.
	One popular hash is SHA-256, but the one XRPL uses is "SHA-512 Half" (SHA-512 truncated to the first half, which is 256 bits).
	ECDSA returns a point on a plane, whose coordinates are commonly named `r` and `s`.
	Distinguished Encoding Rules (DER) is a popular encoding of a structure called Abstract Syntax Notation One (ASN.1).
	ASN.1 can represent types like integers, sequences, and sets.
	DER encodes these values to tag-length-value byte sequences.
	ECDSA signatures (`r` and `s`) are customarily encoded with DER.

synic / airwatchlookup.txt

Created June 1, 2018 19:20

AirWatch lookup variables in AppConfig

	{Date} Today's Date
	{ApplicationName} Friendly name of application
	{ApplicationDescription} Application's description
	{ApplicationComments} Comments associated with the application
	{ApplicationImage} Image of the application's icon
	{AppCatalogPageReferenceURL} Link to the AirWatch App Catalog page referencing the application
	{EnrollmentSupportEmail} Contact email address for support
	{EnrollmentSupportPhone} Contact phone number for support
	{FirstName} User's first name
	{LastName} User's last name

bwbaugh / classify.py

Created April 25, 2013 21:03

Detecting a Specific Watermark in a Photo with Python Get example training and testing images here: <http://bwbaugh.com/stack-overflow/16222178_watermark.tar> Stack Overflow question: <http://stackoverflow.com/questions/16222178/detecting-a-specific-watermark-in-a-photo-with-python-without-scipy>

	# Copyright (C) 2013 Wesley Baugh
	"""Tools for text classification.

	Extracted from the [infer](https://github.com/bwbaugh/infer) library.
	"""
	from __future__ import division

	import math
	from collections import defaultdict, namedtuple, Counter
	from fractions import Fraction

saetia / gist:1623487

Last active December 1, 2025 21:36

Clean Install – OS X 10.11 El Capitan

most of these require logout/restart to take effect

# Enable character repeat on keydown
defaults write -g ApplePressAndHoldEnabled -bool false

# Set a shorter Delay until key repeat

Lukas Schönbächler lukeisontheroad