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Alexey Avramov
2025-10-22 01:55:48 +09:00
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@@ -7,28 +7,27 @@ Maintainer: Alexey Avramov <hakavlad@gmail.com>
Priority: optional
Homepage: https://github.com/hakavlad/tird
Description: tool for encrypting files and hiding encrypted data
tird (an acronym for "this is random data") is a file encryption tool
focused on minimizing metadata and hiding encrypted data.
tird /tɪrd/ (an acronym for "this is random data") is a file encryption
tool focused on minimizing metadata and resisting coercion.
.
With tird, you can:
1. Create files filled with random data to use as containers or
keyfiles.
2. Overwrite the contents of devices and regular files with random
data. This can be used to prepare containers and to destroy residual
data.
3. Encrypt file contents and comments. The encrypted file format
(called cryptoblob) is a padded uniform random blob (PURB): it looks
like random data and has a randomized size. This reduces metadata
leakage from file format and length, and also allows cryptoblobs to be
hidden among random data. You can use keyfiles and passphrases at your
choice.
4. Create steganographic (hidden, undetectable) user-driven file
systems inside container files and devices. Unlike VeraCrypt and
Shufflecake containers, tird containers do not contain headers at all;
the user specifies the location of the data in the container and is
responsible for ensuring that this location is separated from the
container.
5. Prevent or resist coercive attacks (keywords: key disclosure law,
rubber-hose cryptanalysis, xkcd 538). tird provides some forms of
plausible deniability out of the box, even if you encrypt files without
hiding them in containers.
2. Overwrite the contents of block devices and regular files with
random data to prepare containers or destroy residual data.
3. Encrypt file contents and comments with keyfiles and passphrases.
The encrypted data format (cryptoblob) is a padded uniform random blob
(PURB): it looks like random data and has a randomized size. This
reduces metadata leakage from file format and length and allows
cryptoblobs to be hidden among random data.
4. Create steganographic (hidden, undetectable) user-driven filesystems
inside container files and block devices. Unlike VeraCrypt and
Shufflecake, tird containers do not contain headers; the user specifies
the data locations inside the container and is responsible for keeping
those locations separate. Any random-looking region of a file or block
device may be used as a container.
5. Prevent fast access to decrypted data using time-lock encryption.
.
tird is designed to resist coercive key-disclosure attacks (rubber-hose
cryptanalysis, xkcd 538) and offers built-in plausible deniability —
even when encrypted files are stored outside containers.