'\" t .\" Title: git-evtag .\" Author: Colin Walters .\" Generator: DocBook XSL Stylesheets vsnapshot .\" Date: 11/21/2022 .\" Manual: git-evtag .\" Source: git-evtag .\" Language: English .\" .TH "GIT\-EVTAG" "1" "" "git-evtag" "git-evtag" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" git-evtag \- Sign a git commit with extended checksums .SH "SYNOPSIS" .HP \w'\fBgit\ evtag\ sign\fR\ 'u \fBgit evtag sign\fR [OPTIONS...] {TAGNAME} .HP \w'\fBgit\ evtag\ verify\fR\ 'u \fBgit evtag verify\fR [OPTIONS...] {TAGNAME} .SH "DESCRIPTION" .PP While git can use GPG to sign tags and commits, it only covers a commit object, which is subject to SHA1 weaknesses\&. This tool uses SHA512 across the entire content of a tag, creating a stronger level of assurance\&. .SH "OPTIONS" .PP See the subcommand help, e\&.g\&. \fBgit\-evtag sign \-\-help\fR\&.