Wack0

<?php
/*
	Updated version, 2016-12-02: fixed shellcode so it *actually* works on QEMU
	usermode emulation (seems I pushed an old version), and removed debug output.
	
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	NB: THIS PoC ONLY WORKS IN QEMU USERMODE EMULATION!
	If anyone wants to fix this, go ahead (no pun intended).
	However, I don't have a vulnerable product and am unwilling to acquire one.

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)

gavinandresen

O(1) Block Propagation

The problem

Bitcoin miners want their newly-found blocks to propagate across the network as quickly as possible, because every millisecond of delay increases the chances that another block, found at about the same time, wins the "block race."