These commands generate and use private keys in unencrypted binary (not Base64 “PEM”) PKCS#8 format. The PKCS#8 format is used here because it is the most interoperable format when dealing with software that isn't based on OpenSSL.
OpenSSL has a variety of commands that can be used to operate on private
key files, some of which are specific to RSA (e.g. openssl rsa and
openssl genrsa) or which have other limitations. Here we always use
| #! /usr/bin/env bash | |
| # Install any build dependencies needed for curl | |
| sudo apt-get build-dep curl | |
| # Get latest (as of Feb 25, 2016) libcurl | |
| mkdir ~/curl | |
| cd ~/curl | |
| wget http://curl.haxx.se/download/curl-7.50.2.tar.bz2 | |
| tar -xvjf curl-7.50.2.tar.bz2 |
| /** | |
| * Creates a new Uint8Array based on two different ArrayBuffers | |
| * | |
| * @private | |
| * @param {ArrayBuffers} buffer1 The first buffer. | |
| * @param {ArrayBuffers} buffer2 The second buffer. | |
| * @return {ArrayBuffers} The new ArrayBuffer created out of the two. | |
| */ | |
| var _appendBuffer = function(buffer1, buffer2) { | |
| var tmp = new Uint8Array(buffer1.byteLength + buffer2.byteLength); |
| 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 |