---
name: "py3rsa-sign"
section: "1"
platform: "linux"
package: "python3-rsa"
version: "4.9-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/py3rsa-sign"
---

# py3rsa-sign(1)

sign a file

## NAME

**py3rsa-sign** - sign a file

## SYNOPSIS

**py3rsa-sign** \[*OPTION*\]... *PRIVATE\_KEY HASH\_METHOD*

## DESCRIPTION

Sign a file, output the signature. Choose the hash method from MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512

## OPTIONS

- **-h**, **--help**

  show help message and exit

- **-i** *INPUT*, **--input=***INPUT*

  name of the file to sign. read from stdin if not specified.

- **-i** *OUTPUT*, **--output=***OUTPUT*

  name of the file to write the signature to. write to stdout if this option is not present.

- **--keyform=***KEYFORM*

  key format of the private key - default PEM

## AUTHOR

**py3rsa-sign** was written by Sybren A. Stuvel \<sybren AT stuvel.eu\>.