---
name: "affsign"
section: "1"
platform: "linux"
package: "afflib-tools"
version: "3.7.21-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/affsign"
---

# affsign(1)

sign an existing AFF file

## NAME

**affsign** - sign an existing AFF file

## SYNOPSIS

```
affcopy [options] file1 file
affcopy [options] file1 file2 file3 ... dir
affcopy [options] file1 file2 file3 ... dir1 dir2...
```

## DESCRIPTION

Sign an existing AFF *file*. This program will:

- •

  Sign each segment if there are no segment signatures.

- •

  Write signed chain-of-custody Bill of Materials segment.

This *file* is part of the AFFLIBv3, that provides AFF.

AFF is an open and extensible *file* format to store disk images and associated metadata. It is useful in several scenaries, as computer forensics investigations.

## OPTIONS

General *options*:

- **-n**

  Ask for a chain-of-custody note.

- **-v**

  Just print the version number and exit.

Signature Options:

- **-k filename.key**

  Specify private key for signing.

- **-c filename.cer**

  Specify a X.509 certificate that matches the private key (by default, the *file* is assumed to be the same one provided with the **-k** option).

- **-Z**

  ZAP (remove) all signature segments.

## SEE ALSO

[**affcat**(1)](/affcat/1.md), [**affcompare**(1)](/affcompare/1.md), [**affconvert**(1)](/affconvert/1.md), [**affcopy**(1)](/affcopy/1.md), [**affcrypto**(1)](/affcrypto/1.md), [**affdiskprint**(1)](/affdiskprint/1.md), [**affinfo**(1)](/affinfo/1.md), [**affix**(1)](/affix/1.md), [**affrecover**(1)](/affrecover/1.md), [**affsegment**(1)](/affsegment/1.md), [**affstats**(1)](/affstats/1.md), [**affuse**(1)](/affuse/1.md), [**affverify**(1)](/affverify/1.md), [**affxml**(1)](/affxml/1.md)

## AUTHOR

The AFFLIB was written by Simson L. Garfinkel \<simsong@acm.org\> and Basis Technology, Inc.

This manual page was written by Joao Eriberto Mota Filho \<eriberto@debian.org\> for the Debian project (but may be used by others).