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author | Paul Traina <pst@FreeBSD.org> | 1994-10-29 23:58:02 +0000 |
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committer | Paul Traina <pst@FreeBSD.org> | 1994-10-29 23:58:02 +0000 |
commit | e164509318d283c0f85408fd75013b6563015b17 (patch) | |
tree | 332be884f034e28b95ad359f533010d2d498cbe1 /sbin/md5/md5.1 | |
parent | 904c1a11ac46466f34987a1a966da00e750412fd (diff) | |
download | src-e164509318d283c0f85408fd75013b6563015b17.tar.gz src-e164509318d283c0f85408fd75013b6563015b17.zip |
Incorproate version of md5 placed into public domain by RSA.
Notes
Notes:
svn path=/cvs2svn/branches/PD/; revision=3995
Diffstat (limited to 'sbin/md5/md5.1')
-rw-r--r-- | sbin/md5/md5.1 | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/sbin/md5/md5.1 b/sbin/md5/md5.1 new file mode 100644 index 000000000000..ccccb01f7e78 --- /dev/null +++ b/sbin/md5/md5.1 @@ -0,0 +1,43 @@ +.TH MD5 1 "Feb 14, 1994" +.SH NAME +md5 \- calculate a message-digest fingerprint (checksum) for a file +.SH SYNOPSIS +.B md5 +[ -t | -x | -sstring | filename(s) ] +.SH DESCRIPTION +.B md5 +takes as input a message of arbitrary length and produces +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 prespecified 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 +.I RSA. +.SH OPTIONS +The following four options may be used in any combination, except +that +.B "filename(s)" +must be the last objects on the command line. +.in +5 +.PP +.B -sstring +prints a checksum of the given "string". +.PP +.B -t +runs a built-in time trial. +.PP +.B -x +runs a built-in test script. +.PP +.B filename(s) +prints a checksum(s) for each of the files. +.SH "SEE ALSO" +.BR sum (1) +.PP +RFC 1321 describes in detail the MD2, MD4, and MD5 message-digest algorithms. +.SH ACKNOWLEDGEMENTS +This program is placed in the public domain for free general use by +RSA Data Security. |