While Encrypting a File with a Password from the Command Line using OpenSSL is very useful in its own right, the real power of the OpenSSL library is its ability to support the use of public key cryptograph for encrypting or validating data in an unattended manner (where the password is not required to encrypt) is done with public keys. In some circumstances there may be a need to have the certificate private key unencrypted. To remove the private key password follow this procedure: Copy the private key file into your OpenSSL directory (or you can specify the path in the command line). Run this command using OpenSSL. First, you have to generate parameters from which to generate the key then to generate the key itself. Openssl dsaparam -out dsaparam.pem 2048 openssl gendsa -des3 -out privkey.pem dsaparam.pem. Again like RSA, 2048 is the size of the key, in bits with anything smaller than 2048 being insecure in todays standards. First, you have to generate parameters from which to generate the key then to generate the key itself. Openssl dsaparam -out dsaparam.pem 2048 openssl gendsa -des3 -out privkey.pem dsaparam.pem. Again like RSA, 2048 is the size of the key, in bits with anything smaller than 2048 being insecure in todays standards. Jul 21, 2011 openssl - no more passphrase-less keys! So, I'm trying to set up a self-signed certificate so people can't sniff my password. To create a new Private Key without a passphrase. # openssl genrsa -out www.example.com.key 4096 To create a new password protected Private Key (Remember the passphrase). The openssl req command from the answer by @Tom H is correct to create a self-signed certificate in server.cert incl. A password-less RSA private key in server.key. Openssl req -nodes -new -x509 -keyout server.key -out server.cert Here is how it works. Omitting -des3 as in the answer by @MadHatter is not enough in this case to create a private key without passphrase.
Common OpenSSL Commands with Keys and Certificates
![Openssl rsa key pair Openssl rsa key pair](/uploads/1/2/6/0/126043328/757552237.jpeg)
Generate RSA private key with certificate in a single command
Generate Certificate Signing Request (CSR) from private key with passphrase
Openssl Generate Rsa Private Key
Generate RSA private key (2048 bit)
Generate a Certificate Signing Request (CSR)
Generate RSA private key (2048 bit) and a Certificate Signing Request (CSR) with a single command
Convert private key to PEM format
Generate a self-signed certificate that is valid for a year with sha256 hash
![Openssl Openssl](/uploads/1/2/6/0/126043328/295709096.png)