icon Top 9 categories map      RocketAware >


Tips: Browse or Search all pages for efficient awareness of more than 6000 of the most popular reusable and open source applications, functions, libraries, and FAQs.

The "RKT couplings" below include links to source code, updates, additional information, advice, FAQs, and overviews.


Search all pages


By activity
Professions, Sciences, Humanities, Business, ...

User Interface
Text-based, GUI, Audio, Video, Keyboards, Mouse, Images,...

Text Strings
Conversions, tests, processing, manipulation,...

Integer, Floating point, Matrix, Statistics, Boolean, ...

Algorithms, Memory, Process control, Debugging, ...

Stored Data
Data storage, Integrity, Encryption, Compression, ...

Networks, protocols, Interprocess, Remote, Client Server, ...

Hard World
Timing, Calendar and Clock, Audio, Video, Printer, Controls...

File System
Management, Filtering, File & Directory access, Viewers, ...


RocketLink!--> Man page versions: OpenBSD

SHA1(1)                    OpenBSD Reference Manual                    SHA1(1)

     sha1 - calculate a message-digest fingerprint (checksum) for a file

     sha1 [-ptx] [-s string] [file ...]

     sha1 takes as input a message of arbitrary length and produces as output
     a 160-bit "fingerprint" or "message digest" of the input.  It is conjec-
     tured that it is computationally infeasible to produce two messages hav-
     ing the same message digest, or to produce any message having a given
     prespecified target message digest.  The SHA-1 algorithm is intended for
     digital signature applications, where a large file must be "compressed"
     in a secure manner before being encrypted with a private (secret) key un-
     der a public-key cryptosystem such as RSA.

     The following four options may be used in any combination and must pre-
     cede any files named on the command line.  The SHA-1 sum of each file
     listed on the command line is printed after the options are processed.

     -s string   Prints a checksum of the given string.

     -p          Echos stdin to stdout and appends the SHA-1 sum to stdout.

     -t          Runs a built-in time trial.

     -x          Runs a built-in test script.

     cksum(1),  md5(1),  rmd160(1)

     NIST FIPS PUB 180-1 describes the SHA-1 message-digest algorithm in de-

     This program is placed in the public domain for free general use by RSA
     Data Security.

OpenBSD 2.6                      July 12, 1997                               1

Source: OpenBSD 2.6 man pages. Copyright: Portions are copyrighted by BERKELEY
SOFTWARE DESIGN, INC., The Regents of the University of California, Massachusetts
Institute of Technology, Free Software Foundation, FreeBSD Inc., and others.

(Corrections, notes, and links courtesy of RocketAware.com)

[Detailed Topics]
OpenBSD sources for sha1(1)

[Overview Topics]

Up to: Data integrity and Security, Checksums and Digests - cryptography, message digests, etc.

RocketLink!--> Man page versions: OpenBSD

Rapid-Links: Search | About | Comments | Submit Path: RocketAware > sha1.1/
RocketAware.com is a service of Mib Software
Copyright 1999, Forrest J. Cavalier III. All Rights Reserved.
We welcome submissions and comments