Check My Private Key

Generate a new private key securely in your browser. No data is sent to any server.

Key Type
RSA Key Size
EC Curve

Generated Private Key


            

        

        

            
How to Generate a Private Key with OpenSSL

            
To create a new private key using OpenSSL, open your terminal and run one of the following commands. All commands will prompt for a password if encryption is enabled.

            
            
RSA Keys

            

                
openssl genpkey -algorithm RSA -out private_key.pem -aes256

                

                    
                    
                

            

            
Replace RSA with RSA:2048, RSA:3072, or RSA:4096 for specific key sizes.

            
            
Elliptic Curve (EC) Keys

            

                
openssl genpkey -algorithm EC -pkeyopt ec_paramgen_curve:prime256v1 -out ec_key.pem -aes256

                

                    
                    
                

            

            
Replace prime256v1 with secp384r1 or secp521r1 for other curves.

            
            
Ed25519 Keys

            

                
openssl genpkey -algorithm Ed25519 -out ed25519_key.pem

                

                    
                    
                

            

            
Note: Ed25519 keys do not support password encryption in OpenSSL.

            
            
General Notes:

            
    
                
  • -aes256 encrypts your key with a password for extra security (not available for Ed25519).
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  • Keep your private key safe and never share it!
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