Verify downloaded file with gnupg: Difference between revisions

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* Download and install [http://www.gnupg.org/download/ GnuPG 1.4.11  compiled for Microsoft Windows]([ftp://ftp.gnupg.org/gcrypt/binary/gnupg-w32cli-1.4.11.exe download directly]).
* Download and install [http://www.gnupg.org/download/ GnuPG 1.4.11  compiled for Microsoft Windows]([ftp://ftp.gnupg.org/gcrypt/binary/gnupg-w32cli-1.4.11.exe download directly]).


* Locate the downloaded file at another website:(1)file.tar.gz.sig (GPG security signature) (2)file.tar.gz (3)keys.txt ( ex: GPG public keys from the website owner who offered files file.tar.gz.sig & file.tar.gz [https://secure.wikimedia.org/keys.html Wikimedia public key list] )
* Locate the downloaded file at another website:(1)file.tar.gz.sig (GPG security signature) (2)file.tar.gz (3)keys.txt (GPG public keys from the website owner who offered files file.tar.gz.sig & file.tar.gz)
<pre>
<pre>
C:\Program Files\GNU\GnuPG\
C:\Program Files\GNU\GnuPG\

Revision as of 15:53, 26 February 2011

Ways on how to verify downloaded file with gnupg

  • Locate the downloaded file at another website:(1)file.tar.gz.sig (GPG security signature) (2)file.tar.gz (3)keys.txt (GPG public keys from the website owner who offered files file.tar.gz.sig & file.tar.gz)
C:\Program Files\GNU\GnuPG\
* gpg.exe
* file.tar.gz.sig                     
* file.tar.gz                         
* keys.txt
  • open the console window
    1. cmd > C:\Program Files\GNU\GnuPG>gpg --import keys.txt
    2. cmd > C:\Program Files\GNU\GnuPG>gpg --verify file.tar.gz.sig file.tar.gz

Expected result after executed --verify command: 

gpg: Good signature from ...

Troubleshooting

I met the message "Can't check signature: public key not found" after I executed --verify command

  • Solution: need to import the GPG public keys gpg --import keys.txt

further reading

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