OpenSSL "genrsa -des" - DES Encrypt RSA Keys

Q

How to generate a new RSA key pair and encrypt the output with a DES password using OpenSSL "genrsa" command?

✍: FYIcenter.com

A

If you want to secure your new RSA private key with a DES encryption, you can use the OpenSSL "genrsa -des" command as shown below:

C:\Users\fyicenter>\local\openssl\openssl

OpenSSL> genrsa -out my_rsa_des.key -des
Generating RSA private key, 2048 bit long modulus
.......................+++
.........+++
e is 65537 (0x10001)
Enter pass phrase for my_rsa_des.key: fyicenter
Verifying - Enter pass phrase for my_rsa_des.key: fyicenter

Options used in this command are:

"-out my_rsa_des.key" - Save output (the new RSA private and public key) in a file.
"-des" - Encrypt the output with DES algorithm.
"fyicenter" - The password of the DES encryption.

⇒ OpenSSL "rsa" - Open Encrypted RSA Keys

⇐ OpenSSL "genrsa 10240" - Generate RSA Long Keys

⇑ OpenSSL "genrsa" and "rsa" Commands

⇑⇑ OpenSSL Tutorials

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💬 2023-09-21 fredy: Good

💬 2020-10-17 FYIcenter.com: @vena, the answer is yes as shown in this tutorial.

💬 2020-10-16 vena: can we already generate 32 bits key with openssl ?

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