The crypt Reference Manual

Table of Contents

The crypt Reference Manual

This is the crypt Reference Manual, generated automatically by Declt version 3.0 "Montgomery Scott" on Wed Mar 25 17:11:41 2020 GMT+0.

1 Introduction

This implementation of unix crypt function has been written by by John
A.R. Williams .

The sources can be downloaded from http://www.jarw.org.uk/lisp/jarw.html or
via git: git clone http://www.jarw.org.uk/lisp/cl-jarw.git

The packaging has been made by Sébastien Gross .

2 Systems

The main system appears first, followed by any subsystem dependency.

2.1 crypt

Author

John A.R. Williams <J.A.R.Williams@jarw.org.uk>

License

GPL

Description

Common-Lisp implementation of unix crypt function

Source

crypt.asd (file)

Components

• package.lisp (file)
• crypt.lisp (file)

3 Files

Files are sorted by type and then listed depth-first from the systems components trees.

3.1 Lisp

3.1.1 crypt.asd

Location

crypt.asd

Systems

crypt (system)

3.1.2 crypt/package.lisp

Parent

crypt (system)

Location

package.lisp

Packages

crypt

3.1.3 crypt/crypt.lisp

Dependency

package.lisp (file)

Parent

crypt (system)

Location

crypt.lisp

Exported Definitions

• crypt (function)
• random-salt (function)

Internal Definitions

• +con-salt+ (special variable)
• +cov-2char+ (special variable)
• +iterations+ (special variable)
• +shifts2+ (special variable)
• +skb+ (special variable)
• +sptrans+ (special variable)
• 4-octets-to-word (function)
• bits (function)
• body (function)
• d-encrypt (function)
• des-set-key (function)
• hperm-op (function)
• lshift (function)
• perm-op (function)
• rshift (function)
• word-to-4-octets (function)

4 Packages

Packages are listed by definition order.

4.1 crypt

Common-Lisp implementation of unix crypt function

Source

package.lisp (file)

Use List

common-lisp

Exported Definitions

• crypt (function)
• random-salt (function)

Internal Definitions

• +con-salt+ (special variable)
• +cov-2char+ (special variable)
• +iterations+ (special variable)
• +shifts2+ (special variable)
• +skb+ (special variable)
• +sptrans+ (special variable)
• 4-octets-to-word (function)
• bits (function)
• body (function)
• d-encrypt (function)
• des-set-key (function)
• hperm-op (function)
• lshift (function)
• perm-op (function)
• rshift (function)
• word-to-4-octets (function)

5 Definitions

Definitions are sorted by export status, category, package, and then by lexicographic order.

5.1 Exported definitions

5.1.1 Functions

Function: crypt PWD &optional SALT

Password encrypion function.
PWD is the user’s typed password.
SALT is a two character string chosen from the set [a-zA-Z0-9./] used to perturb the algorithm in one of 4096 different ways.
Returns the 13 character encrypted password.

Package

crypt

Source

crypt.lisp (file)

Function: random-salt &optional LENGTH

Generate random salt string of given length (default 2)

Package

crypt

Source

crypt.lisp (file)

5.2 Internal definitions

5.2.1 Special variables

Special Variable: +con-salt+

Package

crypt

Source

crypt.lisp (file)

Special Variable: +cov-2char+

Package

crypt

Source

crypt.lisp (file)

Special Variable: +iterations+

Package

crypt

Source

crypt.lisp (file)

Special Variable: +shifts2+

Package

crypt

Source

crypt.lisp (file)

Special Variable: +skb+

Package

crypt

Source

crypt.lisp (file)

Special Variable: +sptrans+

Package

crypt

Source

crypt.lisp (file)

5.2.2 Functions

Function: 4-octets-to-word BYTES &optional OFFSET

Package

crypt

Source

crypt.lisp (file)

Function: bits VALUE

Package

crypt

Source

crypt.lisp (file)

Function: body SCHEDULE E0 E1

Package

crypt

Source

crypt.lisp (file)

Function: d-encrypt L R IDX E0 E1 S

Package

crypt

Source

crypt.lisp (file)

Function: des-set-key KEY

Package

crypt

Source

crypt.lisp (file)

Function: hperm-op A N M

Package

crypt

Source

crypt.lisp (file)

Function: lshift VALUE N

Package

crypt

Source

crypt.lisp (file)

Function: perm-op A B N M

Package

crypt

Source

crypt.lisp (file)

Function: rshift VALUE N

Package

crypt

Source

crypt.lisp (file)

Function: word-to-4-octets VALUE BYTES &optional OFFSET

Package

crypt

Source

crypt.lisp (file)

Appendix A Indexes

A.1 Concepts

A.2 Functions

A.3 Variables

A.4 Data types