jwaghetti: GnuPG Encryption and Signature Reference Guide

2014/08/25

This little reference guide has examples that allow encryption/decryption and signature generation/verification with GnuPG.

Encryption

To encrypt a file:
```
$ gpg --encrypt file.txt
```
and the encrypted content of file.txt will be on output file file.txt.gpg.
ASCII armored encryption:
```
$ gpg --armor --encrypt file.txt
```
file.txt.asc will contain the ASCII armored encrypted file.txt.
To specify a recipient:
```
$ gpg --recipient rec
```
To specify the output file name:
```
$ gpg --output fileout.gpg --encrypt file.txt
```
Instead of the default file.txt.asc, output to fileout.gpg.
To decrypt a file:
```
$ gpg --decrypt file.asc
```

To create a detached signature:
```
$ gpg --sign myfile.txt
```
file.txt.gpg will be created with the binary signature.
To create a detached signature ASCII armored:
```
$ gpg --armor --sign myfile.txt
```
file.txt.gpg will be created with the ASCII armored signature.
To create an attached signature:
```
$ gpg --clearsign myfile.txt
```
file.txt.gpg will be created with both the message and the signature.
To verify a signature:
```
$ gpg --verify [sig.asc] myfile.txt
```
Verifies optional parameter sig.asc against myfile.txt.

Post built on: 2014-08-25 22:13:30
Last modified on: 2014-08-25 22:13:06
First published on: 2014-08-25

Revision	Date	Description
1.00	2014-08-25	Initial Version. Published.