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📖 NAME

openssl gendsa — generate a DSA private key from a set of parameters

🚀 Quick Reference

Use Case	Command	Description
Generate DSA private key from parameter file	openssl gendsa -out key.pem param.pem	Creates a private key using DSA parameters from param.pem, output to key.pem
Encrypt private key with AES-256	openssl gendsa -aes256 -out key.pem param.pem	Generates key and encrypts it with AES-256 cipher (prompts for passphrase)
Display verbose output	openssl gendsa -verbose param.pem	Prints extra details about operations while generating the key

📋 SYNOPSIS

openssl gendsa [-help] [-out filename] [-passout arg] [-aes128]
[-aes192] [-aes256] [-aria128] [-aria192] [-aria256] [-camellia128]
[-camellia192] [-camellia256] [-des] [-des3] [-idea] [-verbose] [-rand
files] [-writerand file] [-engine id] [-provider name] [-provider-path
path] [-propquery propq] [paramfile]

📝 DESCRIPTION

This command generates a DSA private key from a DSA parameter file (which will be typically generated by the openssl-dsaparam(1) command).

⚙️ OPTIONS

🗂️ Help

• -help — Print out a usage message.

📄 Output

• -out filename — Output the key to the specified file. If this argument is not specified then standard output is used.
• -passout arg — The passphrase used for the output file. See openssl-passphrase-options(1).

🔐 Encryption Ciphers

• -aes128, -aes192, -aes256, -aria128, -aria192, -aria256, -camellia128, -camellia192, -camellia256, -des, -des3, -idea — These options encrypt the private key with specified cipher before outputting it. A pass phrase is prompted for. If none of these options is specified no encryption is used.

🔊 Verbosity

• -verbose — Print extra details about the operations being performed.

🎲 Random State

• -rand files, -writerand file — See "Random State Options" in openssl(1) for details.

🔧 Engine (deprecated)

• -engine id — See "Engine Options" in openssl(1). This option is deprecated.

📌 Input Parameter File

• paramfile — The DSA parameter file to use. The parameters in this file determine the size of the private key. DSA parameters can be generated and examined using the openssl-dsaparam(1) command.

🏭 Provider Options

• -provider name
• -provider-path path
• -propquery propq — See "Provider Options" in openssl(1), provider(7), and property(7).

📌 NOTES

DSA key generation is little more than random number generation so it is much quicker that RSA key generation for example.

🔗 SEE ALSO

• openssl(1)
• openssl-genpkey(1)
• openssl-dsaparam(1)
• openssl-dsa(1)
• openssl-genrsa(1)
• openssl-rsa(1)

📜 HISTORY

The -engine option was deprecated in OpenSSL 3.0.

©️ COPYRIGHT

Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at https://www.openssl.org/source/license.html.

📖 NAME 🚀 Quick Reference 📋 SYNOPSIS 📝 DESCRIPTION ⚙️ OPTIONS 📌 NOTES 🔗 SEE ALSO 📜 HISTORY ©️ COPYRIGHT