Salesforce Key management

Step for Generating a PKCS#12 Private Key and Public Certificate

Last week I was jumbled up with creating a secure certificate and PKCS key which i need to use into a connected app for Salesforce. While i was searching some some good resources I have found an awesome link: 

       Generate PKCS#12 Private Key and Public Certificate

These instructions assume you have downloaded and installed the Windows binary distribution of OpenSSL. Refer to Using OpenSSL for the general instructions

1. Generate an RSA private key:
>C:\Openssl\bin\openssl.exe genrsa -out <Key Filename> <Key Size>


Where:
• <Key Filename> is the desired filename for the private key file
• <Key Size> is the desired key length of either 1024, 2048, or 4096
For example, type:
>C:\Openssl\bin\openssl.exe genrsa -out my_key.key 2048


2. Generate a Certificate Signing Request:
In version 0.9.8g:
>C:\Openssl\bin\openssl.exe req -new -key <Key Filename> -out <Request Filename> -config C:\Openssl\bin\openssl.cnf


-OR-


In version 0.9.8h and later:
>C:\Openssl\bin\openssl.exe req -new -key <Key Filename> -out <Request Filename> -config C:\Openssl\bin\openssl.cfg


Where:
• <Key Filename> is the input filename of the previously generated private key
• <Request Filename> is the output filename of the certificate signing request
For example, type:
>C:\Openssl\bin\openssl.exe req -new -key my_key.key -out my_request.csr -config C:\Openssl\bin\openssl.cnf


3. Follow the on-screen prompts for the required certificate request information.
4. Generate a self-signed public certificate based on the request
>C:\Openssl\bin\openssl.exe x509 -req -days 3650 -in <Request Filename> -signkey <Key Filename> -out <Certificate Filename>


Where:
• <Request Filename> is the input filename of the certificate signing request
• <Key Filename> is the input filename of the previously generated private key
• <Certificate Filename> is the output filename of the public certificate
For example, type:
>C:\Openssl\bin\openssl.exe x509 -req -days 3650 -in my_request.csr -signkey my_key.key -out my_cert.crt


5. Generate a PKCS#12 file:
>C:\Openssl\bin\openssl.exe pkcs12 -keypbe PBE-SHA1-3DES -certpbe PBE-SHA1-3DES -export -in <Public Certificate Filename> -inkey <Private Key Filename> -out <PKCS#12 Filename> -name "<Display Name>"


Where:
• <Public Certificate Filename> is the input filename of the public certificate, in PEM format
• <Private Key Filename> is the input filename of the private key
• <PKCS#12 Filename> is the output filename of the pkcs#12 format file
• <Display Name> is the desired name that will sometimes be displayed in user interfaces.
For example, type:
>C:\Openssl\bin\openssl.exe pkcs12 -keypbe PBE-SHA1-3DES -certpbe PBE-SHA1-3DES -export -in my_cert.crt -inkey my_key.key -out my_pkcs12.pfx -name "my-name"

(Optional) Delete unneeded files. At this point, you only need the PKCS#12 format file, so you can delete the certificate signing request (.csr) file, the private key (.key) file, and the public certificate (.crt) file.

The resulting PKCS#12 format file may now be used within Secure FTP Server - FIPS.