---
name: "lsh-decrypt-key"
section: "1"
platform: "linux"
package: "lsh-utils"
version: "2.1-13+b1"
release: "Debian 12 (Bookworm)"
platforms: ["linux"]
url: "https://new.carta.tech/lsh-decrypt-key"
---

# lsh-decrypt-key(1)

Decrypts the given key and outputs it in unecrypted form.

## NAME

lsh-decrypt-key - Decrypts the given key and outputs it in unecrypted form.

## SYNOPSIS

**lsh-decrypt-key** \[*OPTION*...\]

## DESCRIPTION

**CAUTION! The information in this manpage may be invalid or outdated. For authorative** **information on lsh, please see it's Texinfo manual (see the** *SEE ALSO* **section).**

The given key (supplied on stdin or in the file given with the  **--in** option) and it's passphrase is read. The key is decrypted and  written to stdout (or the file supplied by the **--out** option).

This program is usually invoked by the lsh-upgrade-key script.

## OPTIONS

- **--askpass**=*Program*

  Program to use for reading passwords. Should be an absolute filename.

- **--in**=*encrypted* key filename

  (defaults to stdin)

- **--out**=*decrypted* key filename

  (defaults to stdout)

- **--debug**

  Print huge amounts of debug information

- **--log-file**=*File* name

  Append messages to this file.

- **-q**, **--quiet**

  Suppress all warnings and diagnostic messages

- **--trace**

  Detailed trace

- **-v**, **--verbose**

  Verbose diagnostic messages

- \-?, **--help**

  Give this help list

- **--usage**

  Give a short usage message

- **-V**, **--version**

  Print program version

## DIAGNOSTICS

See the  **--verbose** , **--trace** and  **--debug** options.

## REPORTING BUGS

Report bugs to \<bug-lsh@gnu.org\>.

## COPYING

The lsh suite of programs is distributed under the GNU General Public License; see the COPYING and AUTHORS files in the source distribution for details.

## AUTHOR

The lsh program suite is written mainly by Niels Möller \<nisse@lysator.liu.se\>.

This man-page was written for lsh 2.0 by Pontus Freyhult \<pont\_lsh@soua.net\>, it is based on a template written by J.H.M. Dassen (Ray) \<jdassen@wi.LeidenUniv.nl\>.

## SEE ALSO

[**DSA**(5)](/DSA/5.md), [**lsh**(1)](/lsh/1.md), [**lsh-authorize**(1)](/lsh-authorize/1.md), [**lsh-decode-key**(1)](/lsh-decode-key/1.md), [**lsh-export-key**(1)](/lsh-export-key/1.md), [**lsh-keygen**(1)](/lsh-keygen/1.md), [**lsh-make-seed**(1)](/lsh-make-seed/1.md), [**lsh-upgrade**(1)](/lsh-upgrade/1.md), [**lsh-upgrade-key**(1)](/lsh-upgrade-key/1.md), [**lsh-writekey**(1)](/lsh-writekey/1.md), [**lshd**(8)](/lshd/8.md), [**secsh**(5)](/secsh/5.md), [**SHA**(5)](/SHA/5.md), [**SPKI**(5)](/SPKI/5.md), [**ssh-conv**(1)](/ssh-conv/1.md)

The full documentation for **lsh** is maintained as a Texinfo manual.  If the **info** and **lsh** programs are properly installed at your site, the command

-

  **info lsh**

should give you access to the complete manual.