Sigo este tutorial:https://help.github.com/articles/signing-commits-using-gpg/

Intento firmar cuando me comprometo así:https://github.com/spring-guides/tut-spring-boot-oauth2/commit/824f418ab9d04114b14a90f7c19b4b8d6dda67b7

pero error:

C:\Users\Administrator\Desktop\foo\test_gpg>git commit -m "test"
gpg: skipped "DABDD34E": secret key not available
gpg: signing failed: secret key not available
error: gpg failed to sign the data
fatal: failed to write commit object

Mi config:

C:\Users\Administrator\Desktop\foo\test_gpg>git config --list --show-origin
file:"C:\\ProgramData/Git/config"       core.symlinks=false
file:"C:\\ProgramData/Git/config"       core.autocrlf=true
file:"C:\\ProgramData/Git/config"       core.fscache=true
file:"C:\\ProgramData/Git/config"       color.diff=auto
file:"C:\\ProgramData/Git/config"       color.status=auto
file:"C:\\ProgramData/Git/config"       color.branch=auto
file:"C:\\ProgramData/Git/config"       color.interactive=true
file:"C:\\ProgramData/Git/config"       help.format=html
file:"C:\\ProgramData/Git/config"       http.sslcainfo=C:/Program Files/Git/mingw64/ssl/certs/ca-bundle.crt
file:"C:\\ProgramData/Git/config"       diff.astextplain.textconv=astextplain
file:"C:\\ProgramData/Git/config"       rebase.autosquash=true
file:"C:\\Program Files\\Git\\mingw64/etc/gitconfig"    credential.helper=manager
file:C:/Users/Administrator/.gitconfig  user.name=donhuvy
file:C:/Users/Administrator/.gitconfig  [email protected]
file:C:/Users/Administrator/.gitconfig  user.signingkey=DABDD34E
file:C:/Users/Administrator/.gitconfig  commit.gpgsign=true
file:C:/Users/Administrator/.gitconfig  use.signingkey=DABDD34E
file:.git/config        core.repositoryformatversion=0
file:.git/config        core.filemode=false
file:.git/config        core.bare=false
file:.git/config        core.logallrefupdates=true
file:.git/config        core.symlinks=false
file:.git/config        core.ignorecase=true
file:.git/config        core.hidedotfiles=dotGitOnly
file:.git/config        remote.origin.url=https://github.com/donhuvy/test_gpg.git
file:.git/config        remote.origin.fetch=+refs/heads/*:refs/remotes/origin/*
file:.git/config        branch.master.remote=origin
file:.git/config        branch.master.merge=refs/heads/master
file:.git/config        commit.gpgsign=true

y

C:\Users\Administrator\Desktop\foo\test_gpg>gpg --list-key
C:/Users/Administrator/AppData/Roaming/gnupg/pubring.gpg
--------------------------------------------------------
pub   2048R/DABDD34E 2016-06-10
uid       [ultimate] donhuvy (Do Nhu Vy) <[email protected]>
uid       [ultimate] Do Nhu Vy (Do Nhu Vy) <[email protected]>
sub   2048R/C6B535A2 2016-06-10

(Registro 3 correos electrónicos con GitHub:[email protected], [email protected] y[email protected]) ¿En qué me he equivocado? ¿Cómo firmo mi compromiso?