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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 |
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import java.io.UnsupportedEncodingException; | |
import java.security.InvalidAlgorithmParameterException; | |
import java.security.InvalidKeyException; | |
import java.security.Key; | |
import java.security.KeyPair; | |
import java.security.KeyPairGenerator; | |
import java.security.NoSuchAlgorithmException; | |
import java.security.NoSuchProviderException; | |
import java.security.PrivateKey; | |
import java.security.PublicKey; |
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// The following code is from http://www.academicpub.org/PaperInfo.aspx?PaperID=14496 . | |
import java.math.BigInteger; | |
import java.security.*; | |
import java.security.spec.*; | |
import javax.crypto.KeyAgreement; | |
public class ECCKeyAgreement { | |
public static void main(String[] args) throws Exception { | |
KeyPairGenerator kpg; | |
kpg = KeyPairGenerator.getInstance("EC","SunEC"); |
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<!DOCTYPE html> | |
<html ng-app="airpub" ng-controller="global"> | |
<head ng-controller="meta"> | |
<base href="/" /> | |
<meta charset="UTF-8"> | |
<title ng-bind="title"></title> | |
<meta name="fragment" content="!" /> | |
<meta name="description" content="{{description}}"> | |
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"> | |
<!-- dependencies stylesheets and scripts --> |
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package main | |
import ( | |
"database/sql/driver" | |
"encoding/json" | |
"github.com/jinzhu/gorm" | |
_ "github.com/lib/pq" | |
) |
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# Pass the env-vars to MYCOMMAND | |
eval $(egrep -v '^#' .env | xargs) MYCOMMAND | |
# … or ... | |
# Export the vars in .env into your shell: | |
export $(egrep -v '^#' .env | xargs) |