HarryR

field_modulus = 4002409555221667393417789825735904156556882819939007885332058136124031650490837864442687629129015664037894272559787
desired_curve_order = 52435875175126190479447740508185965837690552500527637822603658699938581184513

Fp = GF(field_modulus)

PARAM_A4 = 0
PARAM_A6 = 4

E = EllipticCurve(Fp, [PARAM_A4, PARAM_A6])
E_order = E.order()

zicklag

version: '3.5'

# WARNING: Haven't tested this version of this YAML exactly, but it *should* be correct.

services:
  master-1:
    image: chrislusf/seaweedfs:latest
    networks:
      - hostnet
    command: "master -port=9333 -defaultReplication=001 -peers=localhost:9333,localhost:9334,localhost:9335"

danielepolencic

3 Virtual Machines Kubernetes cluster

Dependencies

You should install VirtualBox and Vagrant before you start.

Creating the cluster

You should create a Vagrantfile in an empty directory with the following content:

mauriciopoppe

Generic makefile example for a C++ project

If you need a small makefile introduction/reference you can take a look at my notes https://www.mauriciopoppe.com/notes/os/bin/make/

Project structure

. project
├── Makefile
├── build

artjomb

Pairings can be used for all kinds of advanced cryptographic schemes such as Encryption (Identity-based, Attribute-based, Predicate-based, etc.), Signatures, Zero-Knowledge Proofs, etc. It is in no particular order.

PBC

Provides multiple types of Elliptic Curve groups with appropriate pairings on top of them. Code repository resides here.

License: LGPL
Language: C
Thesis: On the Implementation of Pairing-Based Cryptography by Ben Lynn (2007)

soarez

How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.

leifg

file_to_disk = './tmp/large_disk.vdi'

Vagrant::Config.run do |config|
  config.vm.box = 'base'

  config.vm.customize ['createhd', '--filename', file_to_disk, '--size', 500 * 1024]
  config.vm.customize ['storageattach', :id, '--storagectl', 'SATA Controller', '--port', 1, '--device', 0, '--type', 'hdd', '--medium', file_to_disk]
end

eendeego

node-native-types

Sources

Arguments:

argument count

http://nodejs.org/api/addons.html

matthewmccullough

Git Compression of Blobs and Packfiles.

Many users of Git are curious about the lack of delta compression at the object (blob) level when commits are first written. This efficiency is saved until the pack file is written. Loose objects are written in compressed, but non-delta format at the time of each commit.

A simple run though of a commit sequence with only the smallest change to the image (in uncompressed TIFF format to amplify the observable behavior) aids the understanding of this deferred and different approach efficiency.

The command sequence:

Create the repo: