Less public.pem Do Not Run This, it Exports the Private KeyĪ previous version of the post gave this example in error. To check the file from the command line you can use the less command, like this: Public key of the pair and not a private key. This is how you know that this file is the Next open the public.pem and ensure that it starts with Openssl rsa -in private.pem -outform PEM -pubout -out public.pem Use this, for instance, on your web server to encrypt content so that it can You need to next extract the public key file. That generates a 2048-bit RSA key pair, encrypts them with a password you provideĪnd writes them to a file. Openssl genrsa -des3 -out private.pem 2048 You can generate a public and private RSA key pair like this: The Commands to Run Generate a 2048 bit RSA Key Validating data in an unattended manner (where the password is not required toĮncrypt) is done with public keys. Is very useful in its own right, the real power of the OpenSSL library is itsĪbility to support the use of public key cryptograph for encrypting or While Encrypting a File with a Password from the Command Line using OpenSSL
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