acoster

#!/usr/bin/env python

"""Implementation of RFC 4226: HMAC-Based One-Time Password Algorithm (HTOP),
and RFC 6238: Time-Based One-Time Password Algorithm (TOTP).
"""

__author__ = 'acoster'
__copyright__ = 'Copyright 2012, Alexandre Coster'

import hmac

postmodern

NAME=project
VERSION=0.0.1

DIRS=etc lib bin sbin share
INSTALL_DIRS=`find $(DIRS) -type d 2>/dev/null`
INSTALL_FILES=`find $(DIRS) -type f 2>/dev/null`
DOC_FILES=*.md *.txt

PKG_DIR=pkg
PKG_NAME=$(NAME)-$(VERSION)

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD