Appearance

How to generate an RSA PEM (asymmetric) key pair? ​

Step to generate an RSA PEM (asymmetric) key pair for use with SimpleBackups Encryption

Generating and Using RSA Keys for SimpleBackups ​

This guide will walk you through the steps to generate an RSA private key and derive the corresponding public key for use with SimpleBackups.

Step 1: Generate the Private Key ​

  1. Open a terminal.
  2. Run the following command to generate a private RSA key:
bash
openssl genrsa -aes256 -out private-key.pem 4096
  1. You will be prompted to enter a password (we recommend securing your keys with a passphrase).
plain
Generating RSA private key, 4096 bit long modulus...
Enter pass phrase for private-key.pem:

Alternative: Generate RSA Key with PSA256 ​

If you need to generate a private key using the PSA256 algorithm, use the following command:

bash
openssl genpkey -algorithm RSA -out private-key-psa256.pem -pkeyopt rsa_keygen_bits:4096 -aes256

You will be prompted to enter a password as well.

Step 2: Obtain the PEM Public Key ​

  1. Use the following command to derive the public key from your private key:
bash
openssl rsa -in private-key.pem -pubout -out public-key.pem

For the PSA256 key, use:

bash
openssl rsa -in private-key-psa256.pem -pubout -out public-key-psa256.pem
  1. View the contents of the public-key.pem or public-key-psa256.pem file using:

or

bash
cat public-key-psa256.pem
  1. Copy the contents of the respective public key file and paste them into SimpleBackups' encryption key field.

Additional Notes ​

🔒

Security: Ensure that your private key (private-key.pem or private-key-psa256.pem) is stored securely. The passphrase adds an additional layer of security

⚙

Usage: The public key (public-key.pem or public-key-psa256.pem) will be used by SimpleBackups for encryption purposes. Only share the public key with trusted entities.