5/7/2023 0 Comments Gpg suite shasum![]() The phishing site was followed as the first advertising link from a Google search. Many Bitcoin users are familiar with the idea of digital signatures. The same idea can be applied to software downloads. ![]() The developer signs a download with a private key. Users verify the download using the developer’s public key. A forged file that changes a single bit can be detected with this system, as can a developer who attempts to apply an invalid signature. The standard method for signing binaries is known as Pretty Good Privacy (PGP). Implementations are available for all operating systems. #MAC GPG SUITE INSTALL#ĭownload and Install GPG SuiteĪ popular PGP implementation on OSX is GPG Suite. Begin by downloading the installer from the main page. We are immediately faced with a dilemma: how do we know that our copy of GPG Suite is authentic? We can’t verify a signature because if we could do that we wouldn’t need GPG Suite.įortunately, we can verify the installer’s hash value. Think of a hash value as an immutable, unique identifier that can be assigned to any file. OSX allows hash values to be checked with the shasum utility. shasum is run from the Terminal application. To access Terminal, press command-spacebar and type “Terminal”. $ echo " is the version of Electrum you downloaded.Ĭommands are entered, in text form, after this prompt.įrom Terminal, enter the following two commands: $ cd Downloads You’ll see a mostly empty window with a prompt after a dollar sign (“$”). The former file is the installer itself and the latter is the signature file. ![]() To verify the signature of the installer, right click on it. A context menu will appear whose last item is called Services. One of its entries will be “OpenPGP: Verify Signature of File.” Click it. You should be presented with a window titled “Verification Results.” A single line should appear. The first entry gives the installer’s filename. The second gives the result of the verification. You should see text beginning with “Signed by: Thomas Voegtlin”. The line will be appended with the bolded text “undefined trust.”Īt this stage, you’ve verified the signature of an Electrum installer. You could, however, take this process one step further by signing Thomas Voegtlin’s public key.
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