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I have to download a program with a PGP signature and a signing key (Public Key)

How do I check the program with signing key?

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Assuming you have GPG installed:

gpg --import signing_key.pub
gpg --verify signed_file.sig

Where signing_key.pub is the public key, and signed_file.sig is the detached signature for the file (in the same directory as the signed file).

  • first thanks for you answer! , i have to do as you to say . and i come; gpg key: key ........... gpg sig: RSA.................... but i not understand how working together..........every one have different cipher.... how know the program i dowloaded is it .....so , i have download the Tcpdum from here tcpdump.org/#latest-release and i will know if it is the genuine Tcpdump.... – 567hz Mar 7 '18 at 17:22
  • so how i have understand... with signing_key , i come : E089DEF1D9C15D0D with signed_key : 1F166A5742ABB9E0249A8D30 is here the RSA key? E089DEF1D9C15D0D und here is my signing_key! . Together the RSA key: 1F166A5742ABB9E0249A8D30E089DEF1D9C15D0D – 567hz Mar 7 '18 at 17:38
  • For verifying the File's Signature : gpg --verify tcpdump-4.9.2.tar.gz.sig tcpdump-4.9.2.tar.gz gnupg.org/download/integrity_check.html – 567hz Mar 8 '18 at 13:29

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