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8
content/posts/tails-best/index.md
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@ -138,7 +138,9 @@ Another reason to not use Persistent Storage features is that many of them persi
>In the terminology used by KeePassXC, a [*password*](/glossary/#password) is a randomized sequence of characters (letters, numbers and other symbols), whereas a [*passphrase*](/glossary/#passphrase) is a random series of words.
Never reuse a password/passphrase for multiple things ("password recycling") - KeePassXC makes it easy to save unique ones that are dedicated to one purpose. LUKS encryption can be [brute-force attacked](/glossary#brute-force-attack) with [massive amounts of cloud computing](https://blog.elcomsoft.com/2020/08/breaking-luks-encryption/). Your passwords/passphrases should ideally have an entropy of around 128 bits (diceware passphrases of approximately **ten words**, or passwords of **21 random characters**) and shouldn't have less than 90 bits of entropy (approximately seven words).
Never reuse a password/passphrase for multiple things ("password recycling") - KeePassXC makes it easy to save unique ones that are dedicated to one purpose. [LUKS](/glossary/#luks) encryption **is only effective when the device is powered down** - when the device is on, the password can be retrieved from memory. Any encryption can be [brute-force attacked](/glossary#brute-force-attack) with [massive amounts of cloud computing](https://blog.elcomsoft.com/2020/08/breaking-luks-encryption/). The newer version of LUKS (LUKS2 using Argon2id) is [less vulnerable to brute-force attacks](https://mjg59.dreamwidth.org/66429.html); this is the default from [Tails 5.13](https://tails.boum.org/security/argon2id/index.en.html) onwards, and Qubes OS 4.1 onwards. If you'd like to learn more about this change, we recommend [Systemli's overview](https://www.systemli.org/en/2023/04/30/is-linux-hard-disk-encryption-hacked/).
Password strength is measured in "[bits of entropy](https://en.wikipedia.org/wiki/Password_strength#Entropy_as_a_measure_of_password_strength)". Your passwords/passphrases should ideally have an entropy of around 128 bits (diceware passphrases of approximately **ten words**, or passwords of **21 random characters**) and shouldn't have less than 90 bits of entropy (approximately seven words).
What is a diceware passphrase? As [Privacy Guides notes](https://www.privacyguides.org/en/basics/passwords-overview/#diceware-passphrases), "Diceware passphrases are a great option when you need to memorize or manually input your credentials, such as for your password manager's master password or your device's encryption password. An example of a diceware passphrase is `viewable fastness reluctant squishy seventeen shown pencil`." The Password Generator feature in KeePassXC can generate diceware passphrases and random passwords. If you prefer to generate diceware passphrases using real dice, see [Privacy Guides](https://www.privacyguides.org/en/basics/passwords-overview/#diceware-passphrases).
@ -147,7 +149,7 @@ Our recommendations are:
1) Memorize diceware passphrases of 7-10 words for anything that is not stored in a KeePassXC database
2) Generate passwords of 21 random characters for anything that can be stored in a KeePassXC database. Maintain an offsite backup of your KeePassXC database(s) in case it is ever corrupted or seized.
Diceware passphrases can be easy to forget when you have several to keep track of, especially if you use any irregularly. To mitigate against the risk of forgetting a diceware passphrase, you can create a KeePassXC file with all "memorized" passphrases in it. Store this on a LUKS USB, and hide this USB somewhere offsite where it won't be recovered during a police raid. You should be able to reconstruct both the LUKS and KeePassXC passphrases if a lot of time has passed. One strategy is to use a memorable sentence from a book - this decrease in password entropy is acceptable if the USB is highly unlikely to ever be recovered due to its storage location. This way, if you ever truly forget a "memorized" passphrase, you can access this offsite backup.
> **Tip**: Diceware passphrases can be easy to forget when you have several to keep track of, especially if you use any irregularly. To mitigate against the risk of forgetting a diceware passphrase, you can create a KeePassXC file with all "memorized" passphrases in it. Store this on a LUKS USB, and hide this USB somewhere offsite where it won't be recovered during a police raid. You should be able to reconstruct both the LUKS and KeePassXC passphrases if a lot of time has passed. One strategy is to use a memorable sentence from a book - this decrease in password entropy is acceptable if the USB is highly unlikely to ever be recovered due to its storage location. This way, if you ever truly forget a "memorized" passphrase, you can access this offsite backup.
For Tails, you will need to memorize two passphrases:
@ -193,7 +195,7 @@ PGP email is the most established form of encrypted communication on Tails in th
For [synchronous](/glossary/#synchronous-communication) messaging—when you are both online at the same time—we recommend [Cwtch](/posts/e2ee/#cwtch) for encrypted communications on Tails.
For [asynchronous](/glossary/#asynchronous-communication) messaging—when you are not online simultanelously—we recommend [Element](/posts/e2ee/#element-matrix). What server you use is important as well—[Systemli](https://www.systemli.org/en/service/matrix/) and [Anarchy Planet](https://anarchyplanet.org/chat.html) are reputable hosts.
For [asynchronous](/glossary/#asynchronous-communication) messaging—when you are not online at the same time—we recommend [Element](/posts/e2ee/#element-matrix). What server you use is important as well—[Systemli](https://www.systemli.org/en/service/matrix/) and [Anarchy Planet](https://anarchyplanet.org/chat.html) are reputable hosts.
For more information on either option, see [Encrypted Messaging For Anarchists](/posts/e2ee/).

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content/recommendations/_index.md
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@ -9,7 +9,7 @@ These recommendations are intended for all anarchists and are accompanied by tut
## Phones
>**[Operating system](/glossary#operating-system-os)**: **GrapheneOS** is the only reasonably secure choice for cellphones. See [GrapheneOS for Anarchists](/posts/graphene/). Better yet, [don't have a phone](/posts/nophones/).
>**[Operating system](/glossary#operating-system-os)**: **GrapheneOS** is the only reasonably secure choice for cellphones. See [GrapheneOS for Anarchists](/posts/grapheneos/). Better yet, [don't have a phone](/posts/nophones/).
Google Pixel phones are the only devices that currently meet GrapheneOS's [hardware security requirements](https://grapheneos.org/faq#device-support). If this is not possible for you, [DivestOS](https://www.privacyguides.org/en/android/#divestos) has more [supported devices](https://divestos.org/pages/devices) and it is significantly better than stock Android.