home *** CD-ROM | disk | FTP | other *** search
-
-
-
- MD5(1) USER COMMANDS MD5(1)
-
-
-
- NAME
- md5 - calculate a message-digest fingerprint (checksum) for
- a file
-
- SYNOPSIS
- md5 [ -t | -x | -sstring | filename(s) ]
-
- DESCRIPTION
- md5 takes as input a message of arbitrary length and pro-
- duces as output a 128-bit "fingerprint" or "message digest"
- of the input. It is conjectured that it is computationally
- infeasible to produce two messages having the same message
- digest, or to produce any message having a given prespeci-
- fied target message digest. The MD5 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 under a public-key cryptosystem
- such as _R_S_A.
-
- OPTIONS
- The following four options may be used in any combination,
- except that filename(s) must be the last objects on the com-
- mand line.
-
- -sstring prints a checksum of the given "string".
-
- -t runs a built-in time trial.
-
- -x runs a built-in test script.
-
- filename(s) prints a checksum(s) for each of the files.
-
- SEE ALSO
- sum(1)
-
- RFC 1321 describes in detail the MD2, MD4, and MD5 message-
- digest algorithms.
-
- ACKNOWLEDGEMENTS
- This program is placed in the public domain for free general
- use by RSA Data Security.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- Sun Release 4.1 Last change: Feb 14, 1994 1
-
-
-
-