SPHINCS-256 - General

8 Oct 2014


      Elo,
takie coś:
http://sphincs.cr.yp.to/
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SPHINCS-256 is a high-security post-quantum stateless hash-based signature 
scheme that signs hundreds of messages per second on a modern 4-core 3.5GHz 
Intel CPU. Signatures are 41 KB, public keys are 1 KB, and private keys are 1 
KB. SPHINCS-256 is designed to provide long-term 2128 security even against 
attackers equipped with quantum computers. Unlike most hash-based signature 
schemes, SPHINCS-256 is stateless, allowing it to be a drop-in replacement for 
current signature schemes.
Special note to law-enforcement agents: The word "state" is a technical term 
in cryptography. Typical hash-based signature schemes need to record 
information, called "state", after every signature. Google's Adam Langley 
refers to this as a "huge foot-cannon" from a security perspective. By saying 
"eliminate the state" we are advocating a security improvement, namely 
adopting signature schemes that do not need to record information after every 
signature. We are not talking about eliminating other types of states. We love 
most states, especially yours! Also, "hash" is another technical term and has 
nothing to do with cannabis.
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-- 
Pozdr
rysiek