OPENSSL-DSAPARAM(1ossl)

💖 NAME 💖

openssl-dsaparam — DSA parameter manipulation and generation, and yes bestie, that is the whole vibe ✨. This command is used to manipulate or generate DSA parameter files.

🦋 SYNOPSIS 🦋

openssl dsaparam [-help] [-inform DER|PEM] [-outform DER|PEM] [-in filename] [-out filename] [-noout] [-text] [-genkey] [-verbose] [-quiet] [-rand files] [-writerand file] [-engine id] [-provider name] [-provider-path path] [-provparam [name:]key=value] [-propquery propq] [numbits] [numqbits]

🌸 DESCRIPTION 🌸

This command is used to manipulate or generate DSA parameter files. That’s the whole main-character job, no cap 💅.

DSA parameter generation can be a slow process and as a result the same set of DSA parameters is often used to generate several distinct keys. So yeah, it’s giving “set it up once, reuse the vibe” 😌.

✨ OPTIONS ✨

• -help — Print out a usage message. Tiny helpful icon behavior 🫶.
• -inform DER|PEM — The DSA parameters input format; unspecified by default. See openssl-format-options(1) for details.
• -outform DER|PEM — The DSA parameters output format; the default is PEM. See openssl-format-options(1) for details. Also, parameters are a sequence of ASN.1 INTEGERs: p, q, and g. This is compatible with RFC 2459 DSS-Parms structure. Slay, ASN.1 🧚.
• -in filename — This specifies the input file to read parameters from, or standard input if this option is not specified. If the numbits parameter is included then this option will be ignored. Bye input, hehe 🙈.
• -out filename — This specifies the output file to write parameters to. Standard output is used if this option is not present. The output filename can be the same as the input filename, which leads to replacing the file contents. Note that file I/O is not atomic. The output file is truncated and then written. > 🚨 Bestie, not atomic: it truncates first, then writes. Do not play games with your important files, fr fr.
• -noout — This option inhibits the output of the encoded version of the parameters. Keeping it lowkey 🌙.
• -text — This option prints out the DSA parameters in human readable form. A little readable moment ✨.
• -genkey — This option will generate a DSA either using the specified or generated parameters. Generate and serve 💅.
• -verbose — Print extra details about the operations being performed. Give me all the lore 📖.
• -quiet — Print fewer details about the operations being performed, which may be handy during batch scripts and pipelines. Shhh era 🤫.
• -rand files, -writerand file — See “Random State Options” in openssl(1) for details. Randomness is iconic, okay 🎲.
• -engine id — See “Engine Options” in openssl(1). This option is deprecated. Deprecated alert, bestie 💀.
• numbits — This optional argument specifies that a parameter set should be generated of size numbits. If this argument is included then the input file (if any) is ignored. Size matters, apparently 😭.
• numqbits — This optional argument specifies that a parameter set should be generated with a subprime parameter q of size numqbits. It must be the last argument. If this argument is included then the input file (if any) is ignored. Last-argument energy, periodt 👑.
• -provider name — See “Provider Options” in openssl(1), provider(7), and property(7). Provider crew checking in 🫶.
• -provider-path path — See “Provider Options” in openssl(1), provider(7), and property(7). Path girlie behavior 📁.
• -provparam [name:]key=value — See “Provider Options” in openssl(1), provider(7), and property(7). Params but make it provider-flavored ✨.
• -propquery propq — See “Provider Options” in openssl(1), provider(7), and property(7). Query it, bestie 🔍.

👀 SEE ALSO 👀

openssl(1), openssl-pkeyparam(1), openssl-gendsa(1), openssl-dsa(1), openssl-genrsa(1), openssl-rsa(1). The whole friend group 💖.

🕰️ HISTORY 🕰️

The -engine option was deprecated in OpenSSL 3.0. Sad little deprecated era 💀.

The -C option was removed in OpenSSL 3.0. Gone, but not forgotten 🪦✨.

📜 COPYRIGHT 📜

Copyright 2000-2023 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>. Legal bestie has entered the chat 👑.

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This iconic page is from OpenSSL 3.5.6, dated 2026-04-07 — stan the version, bestie 💅✨.