To generate a TLS-Crypt key for OpenVPN using OpenSSL, follow these steps:
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First, ensure you have OpenSSL installed on your system. If not, you can download it from the official OpenSSL website.
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Open a terminal or command prompt and navigate to the directory where you want to save the generated key.
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Run the following command to generate the TLS-Crypt key:
openssl dhparam -out tls-crypt.pem 2048
This command generates a 2048-bit Diffie-Hellman parameter file (tls-crypt.pem). You can adjust the bit length according to your requirements.
- Now, to generate the TLS-Crypt key itself, use the following command:
openssl dhparam -out tls-crypt.key -outform DH -check -rand /dev/urandom 2048
This command generates the TLS-Crypt key (tls-crypt.key) in DH format. Again, you can adjust the bit length as needed.
Note that the -check option is used to verify the key, and the -rand option specifies the random data source.
- To verify the key, run:
openssl dhparam -check tls-crypt.key
If the key is valid, you will see the following output:
Verification successful
Now you have successfully generated the TLS-Crypt key for OpenVPN using OpenSSL.