tldr/pages/common/openssl-genrsa.md

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# openssl genrsa
> OpenSSL command to generate RSA private keys.
> More information: <https://www.openssl.org/docs/man1.0.2/man1/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}}`