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openssl genrsa

 
OpenSSL command to generate RSA private keys. More information: https://www.openssl.org/docs/manmaster/man1/openssl-genrsa.html.
 
  • Generate an RSA private key of 2048 bits to stdout:
     
    openssl genrsa
     
  • Save an RSA private key of an arbitrary number of bits to the output file:
     
    openssl genrsa -out {{output_file.key}} {{1234}}
     
  • Generate an RSA private key and encrypt it with AES256 (you will be prompted for a passphrase):
     
    openssl genrsa {{-aes256}}

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