# picsg

A tool for steganographing information in a picture encoded using the Vernam
cipher.

## Synopsis

```sh
picsg [subcommand]
```

where subcommand is one of the following:

- `encode <text> <output-path> [--img <image-path>]`
- `encode file <file-path> <output-path> [--img <image-path>]`
- `decode [--img] <encoded-path> <key-path> <output-path>`

## Examples

- Encode text using the Vernam cipher to the file `hello.enc` and create a file
  `hello.enc.key` with a key to decode the `hello.enc` file.

  `picsg encode "ABC" hello.enc`

- Decode the `hello.enc` file using key and print to the standard output

  `picsg decode hello.enc hello.enc.key -`