Do not select “Allow secret key export” your secret key should never be given to anybody. To export your public key, select your key in GPG Keychain Access and then click Export in the menu.Likewise, they need your public key to send encrypted data to you. You need their public key in order to encrypt data that only they can decrypt. In order to share encrypted data with another person you need to exchange public keys. Your keys will then be listed in the GPG Keychain Access main window. Click “Generate key” after entering your information and your key pair will be created after a short time. You will need this passphrase any time you need access to your keys for encrypting and decrypting. You will also create a passphrase here to protect your private/secret key. Enter your name and email address in the pop up window that appears.Select “New” to begin the key generation process. After starting the GPG Keychain Access app for the first time you need to create a public and private key pair for encrypting and decrypting data.When others send data to you that is encrypted with your public key, only you, the owner of the matching private key can decrypt that data. Your private key should never be shared and should always be kept secure. Your public key can be made public so that others can use it to encrypt data to send to you. Data that is encrypted using the public key can only be decrypted using the private key. The encryption process requires a pair of keys, one public and one private. The install procedure is a standard Mac pkg install. After that initial setup, encrypting files for secure transmission is very easy. Third you must exchange and sign public keys with the people that you wish to exchange secure data with. GPG relies on public key cryptography, so the next step is to generate your public and private key pair used for the actual encryption and decryption process. It provides a simple interface for managing keys and shell integration for quickly encrypting and decrypting files. First you install GPG GPG Tools is an easy to use frontend application for GPG on Mac. Transmitting encrypted data with GPG (GNU Privacy Guard) on the Mac platform requires four basic steps.
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