openssl-genrsa:tldr:03797

openssl-genrsa: Generate an RSA private key of 2048 bits to `stdout`.

openssl

$ openssl genrsa

try on your machine

The command "openssl genrsa" is used to generate an RSA private key.

RSA (Rivest-Shamir-Adleman) is a widely-used encryption algorithm that is used to secure communication and data transmission.

The "genrsa" command is part of the OpenSSL toolkit, which is a powerful open-source software library for cryptographic functions, including SSL/TLS protocol implementation.

When you run the "openssl genrsa" command, it creates a new RSA private key with the default key size of 2048 bits. This private key can be used for various cryptographic operations, such as generating a public key, encrypting or decrypting data, or signing digital signatures.

Here's an example of how to use the command:

openssl genrsa -out private.key 2048

In this example, the command generates an RSA private key with a key size of 2048 bits and saves it in a file named "private.key". The private key will be in PEM (Privacy Enhanced Mail) format, which is a common file format for storing cryptographic keys and certificates.

It's important to keep the generated private key secure and protected since it is used to decrypt or sign sensitive data.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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