1884 lines
47 KiB
HTML
1884 lines
47 KiB
HTML
|
|
<!DOCTYPE HTML>
|
|
<html lang="" >
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
|
|
<title>Cryptography and Security · Learn Lisp The Hard Way</title>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
|
|
<meta name="description" content="">
|
|
<meta name="generator" content="GitBook 3.2.3">
|
|
<meta name="author" content=""the Phoeron" Colin J.E. Lupton">
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="gitbook/style.css">
|
|
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="gitbook/gitbook-plugin-hints/plugin-hints.css">
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="gitbook/gitbook-plugin-folding-chapters/folding-chapters.css">
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="gitbook/gitbook-plugin-highlight/website.css">
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="gitbook/gitbook-plugin-search/search.css">
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="gitbook/gitbook-plugin-fontsettings/website.css">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<meta name="HandheldFriendly" content="true"/>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
|
|
<meta name="apple-mobile-web-app-capable" content="yes">
|
|
<meta name="apple-mobile-web-app-status-bar-style" content="black">
|
|
<link rel="apple-touch-icon-precomposed" sizes="152x152" href="gitbook/images/apple-touch-icon-precomposed-152.png">
|
|
<link rel="shortcut icon" href="gitbook/images/favicon.ico" type="image/x-icon">
|
|
|
|
|
|
<link rel="next" href="3-12-00-fintech.html" />
|
|
|
|
|
|
<link rel="prev" href="3-10-00-data.html" />
|
|
|
|
|
|
</head>
|
|
<body>
|
|
|
|
<div class="book">
|
|
<div class="book-summary">
|
|
|
|
|
|
<div id="book-search-input" role="search">
|
|
<input type="text" placeholder="Type to search" />
|
|
</div>
|
|
|
|
|
|
<nav role="navigation">
|
|
|
|
|
|
|
|
<ul class="summary">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="header">LEARN LISP THE HARD WAY</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="1.1" data-path="./">
|
|
|
|
<a href="index.html">
|
|
|
|
|
|
Second Draft (in-progress)
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="1.2" data-path="CHANGELOG.html">
|
|
|
|
<a href="CHANGELOG.html">
|
|
|
|
|
|
CHANGELOG
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="1.3" data-path="TODO.html">
|
|
|
|
<a href="TODO.html">
|
|
|
|
|
|
TODO
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">PREFACE</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="2.1" data-path="preface.html">
|
|
|
|
<a href="preface.html">
|
|
|
|
|
|
TANSTAAFL
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.2" data-path="preface-part-two.html">
|
|
|
|
<a href="preface-part-two.html">
|
|
|
|
|
|
The Hard Way is Easier
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.3" data-path="preface-part-three.html">
|
|
|
|
<a href="preface-part-three.html">
|
|
|
|
|
|
Who Is This Book For?
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.4" data-path="introduction.html">
|
|
|
|
<a href="introduction.html">
|
|
|
|
|
|
Lisp: A Future History
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="2.5" data-path="acknowledgements.html">
|
|
|
|
<a href="acknowledgements.html">
|
|
|
|
|
|
Acknowledgements
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">PART ONE</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="3.1" data-path="1-0-0-overview.html">
|
|
|
|
<a href="1-0-0-overview.html">
|
|
|
|
|
|
Grokking Lisp
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="3.1.1" data-path="1-01-00-lisp-bootcamp.html">
|
|
|
|
<a href="1-01-00-lisp-bootcamp.html">
|
|
|
|
|
|
Common Lisp Bootcamp
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="3.1.1.1" data-path="1-01-01-syntax-overview.html">
|
|
|
|
<a href="1-01-01-syntax-overview.html">
|
|
|
|
|
|
Syntax Overview in 5 Minutes
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.1.2" data-path="1-01-02-repl.html">
|
|
|
|
<a href="1-01-02-repl.html">
|
|
|
|
|
|
The REPL
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.1.3" data-path="1-01-03-expressions.html">
|
|
|
|
<a href="1-01-03-expressions.html">
|
|
|
|
|
|
Expressions, Parentheses, and Return Values
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.1.4" data-path="1-01-04-lists-cons-cells.html">
|
|
|
|
<a href="1-01-04-lists-cons-cells.html">
|
|
|
|
|
|
Lists, Cons-Cells, and Memory
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.1.5" data-path="1-01-05-symbols.html">
|
|
|
|
<a href="1-01-05-symbols.html">
|
|
|
|
|
|
Symbols and Namespaces
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.1.6" data-path="1-01-06-prefix-notation.html">
|
|
|
|
<a href="1-01-06-prefix-notation.html">
|
|
|
|
|
|
Prefix Notation
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.1.7" data-path="1-01-07-style-guide.html">
|
|
|
|
<a href="1-01-07-style-guide.html">
|
|
|
|
|
|
Common Lisp Style Guide
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.1.8" data-path="1-01-08-configuration.html">
|
|
|
|
<a href="1-01-08-configuration.html">
|
|
|
|
|
|
Configuring Your Development Environment
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2" data-path="1-02-00-input-output.html">
|
|
|
|
<a href="1-02-00-input-output.html">
|
|
|
|
|
|
Printing, Streams, and Strings
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="3.1.2.1" data-path="1-02-01-strings.html">
|
|
|
|
<a href="1-02-01-strings.html">
|
|
|
|
|
|
Strings
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.2" data-path="1-02-02-more-strings.html">
|
|
|
|
<a href="1-02-02-more-strings.html">
|
|
|
|
|
|
More Strings
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.3" data-path="1-02-03-unicode.html">
|
|
|
|
<a href="1-02-03-unicode.html">
|
|
|
|
|
|
Unicode and Strings
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.4" data-path="1-02-04-chars.html">
|
|
|
|
<a href="1-02-04-chars.html">
|
|
|
|
|
|
Characters
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.5" data-path="1-02-05-more-chars.html">
|
|
|
|
<a href="1-02-05-more-chars.html">
|
|
|
|
|
|
More Characters
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.6" data-path="1-02-06-char-codes.html">
|
|
|
|
<a href="1-02-06-char-codes.html">
|
|
|
|
|
|
Character Codes
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.7" data-path="1-02-07-strings-from-chars.html">
|
|
|
|
<a href="1-02-07-strings-from-chars.html">
|
|
|
|
|
|
Strings from Chars
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.8" data-path="1-02-08-printing.html">
|
|
|
|
<a href="1-02-08-printing.html">
|
|
|
|
|
|
Printing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.9" data-path="1-02-09-more-printing.html">
|
|
|
|
<a href="1-02-09-more-printing.html">
|
|
|
|
|
|
More Printing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.10" data-path="1-02-10-prin1.html">
|
|
|
|
<a href="1-02-10-prin1.html">
|
|
|
|
|
|
Printing With prin1
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.11" data-path="1-02-11-princ.html">
|
|
|
|
<a href="1-02-11-princ.html">
|
|
|
|
|
|
Printing With princ
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.12" data-path="1-02-12-format.html">
|
|
|
|
<a href="1-02-12-format.html">
|
|
|
|
|
|
A Brief Introduction to Format
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.13" data-path="1-02-13-more-format.html">
|
|
|
|
<a href="1-02-13-more-format.html">
|
|
|
|
|
|
A Little Bit More on Format
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.14" data-path="1-02-14-pathnames.html">
|
|
|
|
<a href="1-02-14-pathnames.html">
|
|
|
|
|
|
Pathnames
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.15" data-path="1-02-15-streams.html">
|
|
|
|
<a href="1-02-15-streams.html">
|
|
|
|
|
|
Streams
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.16" data-path="1-02-16-file-streams.html">
|
|
|
|
<a href="1-02-16-file-streams.html">
|
|
|
|
|
|
File Streams
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.17" data-path="1-02-17-binary-streams.html">
|
|
|
|
<a href="1-02-17-binary-streams.html">
|
|
|
|
|
|
Binary Streams
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.18" data-path="1-02-18-prompting-users.html">
|
|
|
|
<a href="1-02-18-prompting-users.html">
|
|
|
|
|
|
Prompting Users
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.2.19" data-path="1-02-19-pretty-printing.html">
|
|
|
|
<a href="1-02-19-pretty-printing.html">
|
|
|
|
|
|
Pretty-Printing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.3" data-path="1-03-0-getting-input-from-users.html">
|
|
|
|
<a href="1-03-0-getting-input-from-users.html">
|
|
|
|
|
|
Extra Credit: Getting Input from Users
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.4" data-path="1-04-0-lists.html">
|
|
|
|
<a href="1-04-0-lists.html">
|
|
|
|
|
|
Lists and List-Operations
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.5" data-path="1-05-0-lookups-trees.html">
|
|
|
|
<a href="1-05-0-lookups-trees.html">
|
|
|
|
|
|
Extra Credit: Look-up Lists and Trees
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6" data-path="1-06-0-math.html">
|
|
|
|
<a href="1-06-0-math.html">
|
|
|
|
|
|
Numbers and Math
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="3.1.6.1" data-path="1-06-01-integers.html">
|
|
|
|
<a href="1-06-01-integers.html">
|
|
|
|
|
|
Integers
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.2" data-path="1-06-02-more-integers.html">
|
|
|
|
<a href="1-06-02-more-integers.html">
|
|
|
|
|
|
More Integers
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.3" data-path="1-06-03-hexadecimal-notation.html">
|
|
|
|
<a href="1-06-03-hexadecimal-notation.html">
|
|
|
|
|
|
Hexadecimal Integer Notation
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.4" data-path="1-06-04-octal-notation.html">
|
|
|
|
<a href="1-06-04-octal-notation.html">
|
|
|
|
|
|
Octal Integer Notation
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.5" data-path="1-06-05-binary-notation.html">
|
|
|
|
<a href="1-06-05-binary-notation.html">
|
|
|
|
|
|
Binary Integer Notation
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.6" data-path="1-06-06-ratios.html">
|
|
|
|
<a href="1-06-06-ratios.html">
|
|
|
|
|
|
Ratios and Rational Numbers
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.7" data-path="1-06-07-floating-point.html">
|
|
|
|
<a href="1-06-07-floating-point.html">
|
|
|
|
|
|
Floating-point Numbers
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.8" data-path="1-06-08-constants.html">
|
|
|
|
<a href="1-06-08-constants.html">
|
|
|
|
|
|
Numeric Constants
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.9" data-path="1-06-09-complex-numbers.html">
|
|
|
|
<a href="1-06-09-complex-numbers.html">
|
|
|
|
|
|
Complex Numbers
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.10" data-path="1-06-10-arithmetic.html">
|
|
|
|
<a href="1-06-10-arithmetic.html">
|
|
|
|
|
|
Arithmetic
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.11" data-path="1-06-11-more-arithmetic.html">
|
|
|
|
<a href="1-06-11-more-arithmetic.html">
|
|
|
|
|
|
More Arithmetic
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.12" data-path="1-06-12-even-more-arithmetic.html">
|
|
|
|
<a href="1-06-12-even-more-arithmetic.html">
|
|
|
|
|
|
Even More Arithmetic
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.13" data-path="1-06-13-exponents.html">
|
|
|
|
<a href="1-06-13-exponents.html">
|
|
|
|
|
|
Exponents
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.14" data-path="1-06-14-logarithms.html">
|
|
|
|
<a href="1-06-14-logarithms.html">
|
|
|
|
|
|
Logarithms
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.15" data-path="1-06-15-trigonometry.html">
|
|
|
|
<a href="1-06-15-trigonometry.html">
|
|
|
|
|
|
Trigonometry
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.6.16" data-path="1-06-16-psuedorandom-numbers.html">
|
|
|
|
<a href="1-06-16-psuedorandom-numbers.html">
|
|
|
|
|
|
Pseudo-Random Numbers
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.7" data-path="1-07-0-arrays.html">
|
|
|
|
<a href="1-07-0-arrays.html">
|
|
|
|
|
|
Extra Credit: Arrays and Vectors
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.8" data-path="1-08-0-variables.html">
|
|
|
|
<a href="1-08-0-variables.html">
|
|
|
|
|
|
Variables, Parameters, and Constants
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.9" data-path="1-09-0-closures.html">
|
|
|
|
<a href="1-09-0-closures.html">
|
|
|
|
|
|
Extra Credit: Closures
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.10" data-path="1-10-0-functions.html">
|
|
|
|
<a href="1-10-0-functions.html">
|
|
|
|
|
|
Functions and Macros
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.11" data-path="1-11-0-text-adventure.html">
|
|
|
|
<a href="1-11-0-text-adventure.html">
|
|
|
|
|
|
Extra Credit: A Simple Text Adventure
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.12" data-path="1-12-0-namespaces.html">
|
|
|
|
<a href="1-12-0-namespaces.html">
|
|
|
|
|
|
Namespaces, Symbols, Packages, and Systems
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.13" data-path="1-13-0-simple-web-app.html">
|
|
|
|
<a href="1-13-0-simple-web-app.html">
|
|
|
|
|
|
Extra Credit: A Simple Web Application
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.14" data-path="1-14-0-conditionals.html">
|
|
|
|
<a href="1-14-0-conditionals.html">
|
|
|
|
|
|
Conditionals
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.15" data-path="1-15-0-command-line-utility.html">
|
|
|
|
<a href="1-15-0-command-line-utility.html">
|
|
|
|
|
|
Extra Credit: Command-Line Utilities
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.16" data-path="1-16-0-map-loop.html">
|
|
|
|
<a href="1-16-0-map-loop.html">
|
|
|
|
|
|
Mapping and Looping
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.17" data-path="1-17-0-iterate.html">
|
|
|
|
<a href="1-17-0-iterate.html">
|
|
|
|
|
|
Extra Credit: Revisiting Loops with Iterate
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.18" data-path="1-18-0-format.html">
|
|
|
|
<a href="1-18-0-format.html">
|
|
|
|
|
|
Format Strings
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.19" data-path="1-19-0-dsl.html">
|
|
|
|
<a href="1-19-0-dsl.html">
|
|
|
|
|
|
Extra Credit: Domain Specific Languages
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="3.1.20" data-path="1-20-0-review.html">
|
|
|
|
<a href="1-20-0-review.html">
|
|
|
|
|
|
Part One in Review
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">PART TWO</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="4.1" data-path="2-0-0-overview.html">
|
|
|
|
<a href="2-0-0-overview.html">
|
|
|
|
|
|
The Suffusion of Blue
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="4.1.1" data-path="2-01-0-programming-paradigms.html">
|
|
|
|
<a href="2-01-0-programming-paradigms.html">
|
|
|
|
|
|
Programming Paradigms
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.2" data-path="2-02-0-regex.html">
|
|
|
|
<a href="2-02-0-regex.html">
|
|
|
|
|
|
Extra Credit: Regular Expressions
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.3" data-path="2-03-0-objects-control.html">
|
|
|
|
<a href="2-03-0-objects-control.html">
|
|
|
|
|
|
Objects and Control Structures
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.4" data-path="2-04-0-data-persistence.html">
|
|
|
|
<a href="2-04-0-data-persistence.html">
|
|
|
|
|
|
Extra Credit: Persistence and Databases
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.5" data-path="2-05-0-extended-types.html">
|
|
|
|
<a href="2-05-0-extended-types.html">
|
|
|
|
|
|
Extended Types
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.6" data-path="2-06-0-threads-memos-parallel.html">
|
|
|
|
<a href="2-06-0-threads-memos-parallel.html">
|
|
|
|
|
|
Extra Credit: Concurrency and Memoization
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.7" data-path="2-07-0-logic-and-more-math.html">
|
|
|
|
<a href="2-07-0-logic-and-more-math.html">
|
|
|
|
|
|
Logic and Advanced Math
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.8" data-path="2-08-0-number-theory.html">
|
|
|
|
<a href="2-08-0-number-theory.html">
|
|
|
|
|
|
Extra Credit: Number Theory
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.9" data-path="2-09-0-binary-octets-bits.html">
|
|
|
|
<a href="2-09-0-binary-octets-bits.html">
|
|
|
|
|
|
Binary Streams, Octet-Vectors, and Bit-Vectors
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.10" data-path="2-10-0-improved-text-adventure-engine.html">
|
|
|
|
<a href="2-10-0-improved-text-adventure-engine.html">
|
|
|
|
|
|
Extra Credit: An Improved Text Adventure Engine
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.11" data-path="2-11-0-conditions.html">
|
|
|
|
<a href="2-11-0-conditions.html">
|
|
|
|
|
|
Conditions and Error Handling
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.12" data-path="2-12-0-2d-game.html">
|
|
|
|
<a href="2-12-0-2d-game.html">
|
|
|
|
|
|
Extra Credit: Write a 2D Game
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.13" data-path="2-13-0-compiler.html">
|
|
|
|
<a href="2-13-0-compiler.html">
|
|
|
|
|
|
The Compiler
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.14" data-path="2-14-0-tree-shaker.html">
|
|
|
|
<a href="2-14-0-tree-shaker.html">
|
|
|
|
|
|
Extra Credit: Write a Tree-Shaker
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.15" data-path="2-15-0-docs-and-inspection.html">
|
|
|
|
<a href="2-15-0-docs-and-inspection.html">
|
|
|
|
|
|
Documentation and Inspection
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.16" data-path="2-16-0-foreign-libs.html">
|
|
|
|
<a href="2-16-0-foreign-libs.html">
|
|
|
|
|
|
Extra Credit: Foreign Libraries in Lisp
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.17" data-path="2-17-0-debugging-testing.html">
|
|
|
|
<a href="2-17-0-debugging-testing.html">
|
|
|
|
|
|
Debugging and Unit Testing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.18" data-path="2-18-0-ffi.html">
|
|
|
|
<a href="2-18-0-ffi.html">
|
|
|
|
|
|
Extra Credit: Write a Foreign Function Interface
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.19" data-path="2-19-0-essential-libs.html">
|
|
|
|
<a href="2-19-0-essential-libs.html">
|
|
|
|
|
|
Essential Lisp Libraries
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.20" data-path="2-20-0-packaging-libs.html">
|
|
|
|
<a href="2-20-0-packaging-libs.html">
|
|
|
|
|
|
Extra Credit: Packaging Lisp Libraries
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="4.1.21" data-path="2-21-0-review.html">
|
|
|
|
<a href="2-21-0-review.html">
|
|
|
|
|
|
Detailed Syntax Review
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="header">PART THREE</li>
|
|
|
|
|
|
|
|
<li class="chapter " data-level="5.1" data-path="3-00-00-overview.html">
|
|
|
|
<a href="3-00-00-overview.html">
|
|
|
|
|
|
Lisp So(u)rcery
|
|
|
|
</a>
|
|
|
|
|
|
|
|
<ul class="articles">
|
|
|
|
|
|
<li class="chapter " data-level="5.1.1" data-path="3-01-00-web-apps.html">
|
|
|
|
<a href="3-01-00-web-apps.html">
|
|
|
|
|
|
Real-world Web Apps
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.2" data-path="3-02-00-typesetting.html">
|
|
|
|
<a href="3-02-00-typesetting.html">
|
|
|
|
|
|
Typesetting
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.3" data-path="3-03-00-mobile.html">
|
|
|
|
<a href="3-03-00-mobile.html">
|
|
|
|
|
|
Native Mobile Applications
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.4" data-path="3-04-00-gui.html">
|
|
|
|
<a href="3-04-00-gui.html">
|
|
|
|
|
|
Cross-platform Desktop Applications
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.5" data-path="3-05-00-system-utils.html">
|
|
|
|
<a href="3-05-00-system-utils.html">
|
|
|
|
|
|
Drivers, Daemons, and System-Utilities
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.6" data-path="3-06-00-reverse-engineering.html">
|
|
|
|
<a href="3-06-00-reverse-engineering.html">
|
|
|
|
|
|
Reverse Engineering
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.7" data-path="3-07-00-graphics.html">
|
|
|
|
<a href="3-07-00-graphics.html">
|
|
|
|
|
|
Graphics Rendering
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.8" data-path="3-08-00-gaming.html">
|
|
|
|
<a href="3-08-00-gaming.html">
|
|
|
|
|
|
OpenGL, SDL, and 3D Game Development
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.9" data-path="3-09-00-audio.html">
|
|
|
|
<a href="3-09-00-audio.html">
|
|
|
|
|
|
Audio Generation and Manipulation
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.10" data-path="3-10-00-data.html">
|
|
|
|
<a href="3-10-00-data.html">
|
|
|
|
|
|
Data Aggregation and Analysis
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter active" data-level="5.1.11" data-path="3-11-00-cryptosec.html">
|
|
|
|
<a href="3-11-00-cryptosec.html">
|
|
|
|
|
|
Cryptography and Security
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.12" data-path="3-12-00-fintech.html">
|
|
|
|
<a href="3-12-00-fintech.html">
|
|
|
|
|
|
Financial Software and Crypto-Currencies
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.13" data-path="3-13-00-scientific-computing.html">
|
|
|
|
<a href="3-13-00-scientific-computing.html">
|
|
|
|
|
|
Scientific Computing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.14" data-path="3-14-00-computational-physics.html">
|
|
|
|
<a href="3-14-00-computational-physics.html">
|
|
|
|
|
|
Computational Physics
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.15" data-path="3-15-00-quantum-computing.html">
|
|
|
|
<a href="3-15-00-quantum-computing.html">
|
|
|
|
|
|
Quantum Computing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.16" data-path="3-16-00-nlp.html">
|
|
|
|
<a href="3-16-00-nlp.html">
|
|
|
|
|
|
Natural Language Processing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.17" data-path="3-17-00-ai.html">
|
|
|
|
<a href="3-17-00-ai.html">
|
|
|
|
|
|
Artificial Intelligence
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.18" data-path="3-18-00-robotics.html">
|
|
|
|
<a href="3-18-00-robotics.html">
|
|
|
|
|
|
Robotics
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.19" data-path="3-19-00-space-tech.html">
|
|
|
|
<a href="3-19-00-space-tech.html">
|
|
|
|
|
|
Space Tech
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.20" data-path="3-20-00-neurotech.html">
|
|
|
|
<a href="3-20-00-neurotech.html">
|
|
|
|
|
|
Neuroscience and Thought-Controlled Computing
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.21" data-path="3-21-00-lispos.html">
|
|
|
|
<a href="3-21-00-lispos.html">
|
|
|
|
|
|
A Simple LispOS
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.22" data-path="3-22-00-lisp-machine.html">
|
|
|
|
<a href="3-22-00-lisp-machine.html">
|
|
|
|
|
|
Build Your Own Lisp Machine
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
<li class="chapter " data-level="5.1.23" data-path="3-23-00-gov-mil.html">
|
|
|
|
<a href="3-23-00-gov-mil.html">
|
|
|
|
|
|
Government and Military Grade Systems
|
|
|
|
</a>
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
<li class="divider"></li>
|
|
|
|
<li>
|
|
<a href="https://www.gitbook.com" target="blank" class="gitbook-link">
|
|
Published with GitBook
|
|
</a>
|
|
</li>
|
|
</ul>
|
|
|
|
|
|
</nav>
|
|
|
|
|
|
</div>
|
|
|
|
<div class="book-body">
|
|
|
|
<div class="body-inner">
|
|
|
|
|
|
|
|
<div class="book-header" role="navigation">
|
|
|
|
|
|
<!-- Title -->
|
|
<h1>
|
|
<i class="fa fa-circle-o-notch fa-spin"></i>
|
|
<a href="index.html" >Cryptography and Security</a>
|
|
</h1>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
<div class="page-wrapper" tabindex="-1" role="main">
|
|
<div class="page-inner">
|
|
|
|
<div id="book-search-results">
|
|
<div class="search-noresults">
|
|
|
|
<section class="normal markdown-section">
|
|
|
|
<h1 id="chapter-311">Chapter 3.11</h1>
|
|
<h2 id="cryptography-and-security">Cryptography and Security</h2>
|
|
<blockquote>
|
|
<p>"An armed society is a polite society."</p>
|
|
<footer>Robert A. Heinlein, <em>Beyond This Horizon</em></footer>
|
|
|
|
</blockquote>
|
|
<p><strong>Revision Note:</strong> <em>Update chapter intro text to support more in-depth cryptography discussion.</em></p>
|
|
<p>The tools available in the ANSI Common Lisp standard for handling binary data and advanced mathematics, among other more-or-less hidden features of Common Lisp compilers, make it an ideal environment for implementing robust cryptographic utilities and secure software. Naturally, cryptography is a highly specialized subject, and requires deep exploration to grok fully. No general purpose programming language is a magic bullet that allows a layperson to write cryptographic software without extensive training; but <em>if</em> you are interested in cryptographic security as a specialization, this chapter will---hopefully---at least point you in the right direction.</p>
|
|
<p>In this chapter we will review again the mathematics of cryptography, alongside the theory that makes it work and the code we have already written; we will take a deeper exploration of random and pseudo-random number generation; write a one-time pad cipher using CL-ISAAC, suitable for gaming; explore the use-cases of all the tools available to a developer using the Ironclad library; and try our hand at extending Ironclad to support more advanced cryptographic protocols.</p>
|
|
<p>For a list of further readings on cryptography, please consult the Resources section of this site.</p>
|
|
<h3 id="exercise-3111">Exercise 3.11.1</h3>
|
|
<p><strong>The Math of Modern Cryptography</strong></p>
|
|
<pre><code class="lang-lisp">
|
|
|
|
</code></pre>
|
|
<h3 id="exercise-3112">Exercise 3.11.2</h3>
|
|
<p><strong>Post-Quantum Cryptography</strong></p>
|
|
<pre><code class="lang-lisp">
|
|
|
|
</code></pre>
|
|
<h3 id="exercise-3113">Exercise 3.11.3</h3>
|
|
<p><strong>Cryptographically Strong (Pseudo)-Random Number Generators</strong></p>
|
|
<pre><code class="lang-lisp">
|
|
|
|
</code></pre>
|
|
<h3 id="exercise-3114">Exercise 3.11.4</h3>
|
|
<p><strong>A One-Time Pad using CL-ISAAC</strong></p>
|
|
<pre><code class="lang-lisp">
|
|
|
|
</code></pre>
|
|
<h3 id="exercise-3115">Exercise 3.11.5</h3>
|
|
<p><strong>Ironclad: Authentication</strong></p>
|
|
<pre><code class="lang-lisp">
|
|
|
|
</code></pre>
|
|
<h3 id="exercise-3116">Exercise 3.11.6</h3>
|
|
<p><strong>Ironclad: Hashing</strong></p>
|
|
<pre><code class="lang-lisp">
|
|
|
|
</code></pre>
|
|
<h3 id="exercise-3117">Exercise 3.11.7</h3>
|
|
<p><strong>Ironclad: Encryption</strong></p>
|
|
<pre><code class="lang-lisp">
|
|
|
|
</code></pre>
|
|
<h3 id="exercise-3118">Exercise 3.11.8</h3>
|
|
<p><strong>Secure Coding Principles</strong></p>
|
|
<pre><code class="lang-lisp">
|
|
|
|
</code></pre>
|
|
<h3 id="project-3119">Project 3.11.9</h3>
|
|
<p><strong>Extending Ironclad: Elliptical Curve Cryptography</strong></p>
|
|
<pre><code class="lang-lisp">
|
|
|
|
</code></pre>
|
|
|
|
|
|
</section>
|
|
|
|
</div>
|
|
<div class="search-results">
|
|
<div class="has-results">
|
|
|
|
<h1 class="search-results-title"><span class='search-results-count'></span> results matching "<span class='search-query'></span>"</h1>
|
|
<ul class="search-results-list"></ul>
|
|
|
|
</div>
|
|
<div class="no-results">
|
|
|
|
<h1 class="search-results-title">No results matching "<span class='search-query'></span>"</h1>
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
</div>
|
|
</div>
|
|
|
|
</div>
|
|
|
|
|
|
|
|
<a href="3-10-00-data.html" class="navigation navigation-prev " aria-label="Previous page: Data Aggregation and Analysis">
|
|
<i class="fa fa-angle-left"></i>
|
|
</a>
|
|
|
|
|
|
<a href="3-12-00-fintech.html" class="navigation navigation-next " aria-label="Next page: Financial Software and Crypto-Currencies">
|
|
<i class="fa fa-angle-right"></i>
|
|
</a>
|
|
|
|
|
|
|
|
</div>
|
|
|
|
<script>
|
|
var gitbook = gitbook || [];
|
|
gitbook.push(function() {
|
|
gitbook.page.hasChanged({"page":{"title":"Cryptography and Security","level":"5.1.11","depth":2,"next":{"title":"Financial Software and Crypto-Currencies","level":"5.1.12","depth":2,"path":"3-12-00-fintech.md","ref":"./3-12-00-fintech.md","articles":[]},"previous":{"title":"Data Aggregation and Analysis","level":"5.1.10","depth":2,"path":"3-10-00-data.md","ref":"./3-10-00-data.md","articles":[]},"dir":"ltr"},"config":{"plugins":["hints","folding-chapters"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"hints":{"danger":"fa fa-exclamation-circle","info":"fa fa-info-circle","tip":"fa fa-mortar-board","working":"fa fa-wrench"},"folding-chapters":{},"highlight":{},"search":{},"lunr":{"maxIndexSize":1000000,"ignoreSpecialCharacters":false},"sharing":{"facebook":true,"twitter":true,"google":false,"weibo":false,"instapaper":false,"vk":false,"all":["facebook","google","twitter","weibo","instapaper"]},"fontsettings":{"theme":"white","family":"sans","size":2},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false}},"theme":"default","author":"\"the Phoeron\" Colin J.E. Lupton","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"index.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"variables":{},"title":"Learn Lisp The Hard Way","gitbook":"*"},"file":{"path":"3-11-00-cryptosec.md","mtime":"2022-08-23T00:01:55.636Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2022-08-24T16:15:01.957Z"},"basePath":".","book":{"language":""}});
|
|
});
|
|
</script>
|
|
</div>
|
|
|
|
|
|
<script src="gitbook/gitbook.js"></script>
|
|
<script src="gitbook/theme.js"></script>
|
|
|
|
|
|
<script src="gitbook/gitbook-plugin-folding-chapters/folding-chapters.js"></script>
|
|
|
|
|
|
|
|
<script src="gitbook/gitbook-plugin-search/search-engine.js"></script>
|
|
|
|
|
|
|
|
<script src="gitbook/gitbook-plugin-search/search.js"></script>
|
|
|
|
|
|
|
|
<script src="gitbook/gitbook-plugin-lunr/lunr.min.js"></script>
|
|
|
|
|
|
|
|
<script src="gitbook/gitbook-plugin-lunr/search-lunr.js"></script>
|
|
|
|
|
|
|
|
<script src="gitbook/gitbook-plugin-sharing/buttons.js"></script>
|
|
|
|
|
|
|
|
<script src="gitbook/gitbook-plugin-fontsettings/fontsettings.js"></script>
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|
|
|