openssl

SSL/TLS encryption and certificates.

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Verified: 2026-05-10

Syntax

$openssl COMMAND [OPTIONS]

Examples

$openssl version

$openssl req -new -key key.pem -out csr.pem

$openssl enc -aes256 -in file.txt -out file.enc

Typical use cases

Standard usage

openssl --help

Note Comprehensive cryptography toolkit. For certificates, encryption, hashing.

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