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406 lines
22 KiB
Markdown
406 lines
22 KiB
Markdown
---
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meta_title: "Recommended Encryption Software: VeraCrypt, Cryptomator, and OpenPGP - Privacy Guides"
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title: "Software de encriptação"
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icon: material/file-lock
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description: A encriptação de dados é a única forma de controlar quem pode acessá-los. These tools allow you to encrypt your emails and any other files.
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cover: encryption.webp
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---
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**Encryption** is the only secure way to control who can access your data. If you are currently not using encryption software for your hard disk, emails, or files, you should pick an option here.
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## Multi-plataforma
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The options listed here are available on multiple platforms and great for creating encrypted backups of your data.
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### VeraCrypt
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<small>Protects against the following threat(s):</small>
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- [:material-bug-outline: Ataques passivos](basics/common-threats.md#security-and-privacy ""){.pg-orange}
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<div class="admonition recommendation" markdown>
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{ align=right }
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**Cryptomator** is an encryption solution designed for privately saving files to any cloud [:material-server-network: Service Provider](basics/common-threats.md#privacy-from-service-providers){ .pg-teal }, eliminating the need to trust that they won't access your files. Ele pode criar um disco virtual encriptado dentro de um ficheiro, encriptar uma partição ou encriptar todo o dispositivo de armazenamento com autenticação pré-boot.
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[:octicons-home-16: Homepage](https://cryptomator.org){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://cryptomator.org/privacy){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://docs.cryptomator.org){ .card-link title="Documentation" }
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[:octicons-code-16:](https://github.com/cryptomator){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://cryptomator.org/donate){ .card-link title="Contribute" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:simple-googleplay: Google Play](https://play.google.com/store/apps/details?id=org.cryptomator)
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- [:simple-appstore: App Store](https://apps.apple.com/app/id1560822163)
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- [:simple-android: Android](https://cryptomator.org/android)
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- [:fontawesome-brands-windows: Windows](https://cryptomator.org/downloads)
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- [:simple-apple: macOS](https://cryptomator.org/downloads)
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- [:simple-linux: Linux](https://cryptomator.org/downloads)
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- [:simple-flathub: Flathub](https://flathub.org/apps/details/org.cryptomator.Cryptomator)
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</details>
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</div>
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O VeraCrypt é um garfo do projeto TrueCrypt descontinuado. De acordo com seus desenvolvedores, melhorias de segurança foram implementadas e questões levantadas pela auditoria inicial do código TrueCrypt foram abordadas.
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Cryptomator is free to use on all desktop platforms, as well as on iOS in "read only" mode. Cryptomator offers [paid](https://cryptomator.org/pricing) apps with full functionality on iOS and Android. The Android version can be purchased anonymously via [ProxyStore](https://cryptomator.org/coop/proxystore).
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Ao encriptar com VeraCrypt, o utilizador tem a opção de seleccionar de diferentes [funções hash](https://en.wikipedia.org/wiki/VeraCrypt#Encryption_scheme). Sugerimos aos utilizadores **apenas** seleccione [SHA-512](https://en.wikipedia.org/wiki/SHA-512) e deve ficar com o [AES](https://en.wikipedia.org/wiki/Advanced_Encryption_Standard) cifra de bloco. The audit did not extend to [cryptolib-swift](https://github.com/cryptomator/cryptolib-swift), which is a library used by Cryptomator for iOS.
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Cryptomator's documentation details its intended [security target](https://docs.cryptomator.org/en/latest/security/security-target), [security architecture](https://docs.cryptomator.org/en/latest/security/architecture), and [best practices](https://docs.cryptomator.org/en/latest/security/best-practices) for use in further detail.
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### Picocrypt
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<small>Protects against the following threat(s):</small>
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- [:material-target-account: Ataques direcionados](basics/common-threats.md#attacks-against-specific-individuals ""){.pg-red}
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<div class="admonition recommendation" markdown>
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{ align=right }
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**Picocrypt** é uma pequena e simples ferramenta de encriptação que fornece uma encriptação moderna. Picocrypt usa a cifra segura XChaCha20 e a função de derivação da chave Argon2id para proporcionar um alto nível de segurança.
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[:octicons-home-16: Homepage](https://veracrypt.fr){ .md-button .md-button--primary }
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[:octicons-info-16:](https://veracrypt.fr/en/Documentation.html){ .card-link title="Documentation" }
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[:octicons-code-16:](https://veracrypt.fr/code){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://veracrypt.fr/en/Donation.html){ .card-link title="Contribute" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:fontawesome-brands-windows: Windows](https://veracrypt.fr/en/Downloads.html)
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- [:simple-apple: macOS](https://veracrypt.fr/en/Downloads.html)
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- [:simple-linux: Linux](https://veracrypt.fr/en/Downloads.html)
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</details>
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</div>
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VeraCrypt is a fork of the discontinued TrueCrypt project. According to its developers, security improvements have been implemented and issues raised by the initial TrueCrypt code audit have been addressed.
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When encrypting with VeraCrypt, you have the option to select from different [hash functions](https://en.wikipedia.org/wiki/VeraCrypt#Encryption_scheme). We suggest you **only** select [SHA-512](https://en.wikipedia.org/wiki/SHA-512) and stick to the [AES](https://en.wikipedia.org/wiki/Advanced_Encryption_Standard) block cipher.
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TrueCrypt has been [audited a number of times](https://en.wikipedia.org/wiki/TrueCrypt#Security_audits), and VeraCrypt has also been [audited separately](https://en.wikipedia.org/wiki/VeraCrypt#VeraCrypt_audit).
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## Operating System Encryption
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<small>Protects against the following threat(s):</small>
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- [:material-target-account: Ataques direcionados](basics/common-threats.md#attacks-against-specific-individuals ""){.pg-red}
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Built-in OS encryption solutions generally leverage hardware security features such as a [secure cryptoprocessor](basics/hardware.md#tpmsecure-cryptoprocessor). Therefore, we recommend using the built-in encryption solutions for your operating system. For cross-platform encryption, we still recommend [cross-platform tools](#multi-platform) for additional flexibility and to avoid vendor lock-in.
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### BitLocker
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<div class="admonition recommendation" markdown>
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{ align=right }
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**BitLocker** is the full volume encryption solution bundled with Microsoft Windows that uses the Trusted Platform Module ([TPM](https://learn.microsoft.com/windows/security/information-protection/tpm/how-windows-uses-the-tpm)) for hardware-based security.
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[:octicons-info-16:](https://learn.microsoft.com/windows/security/information-protection/BitLocker/BitLocker-overview){ .card-link title="Documentation" }
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</details>
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</div>
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BitLocker is [officially supported](https://support.microsoft.com/windows/turn-on-device-encryption-0c453637-bc88-5f74-5105-741561aae838) on the Pro, Enterprise, and Education editions of Windows. It can be enabled on Home editions provided that they meet the following prerequisites.
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<details class="example" markdown>
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<summary>Enabling BitLocker on Windows Home</summary>
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To enable BitLocker on "Home" editions of Windows, you must have partitions formatted with a [GUID Partition Table](https://en.wikipedia.org/wiki/GUID_Partition_Table) and have a dedicated TPM (v1.2, 2.0+) module. You may need to [disable the non-Bitlocker "Device encryption" functionality](https://discuss.privacyguides.net/t/enabling-bitlocker-on-the-windows-11-home-edition/13303/5) (which is inferior because it sends your recovery key to Microsoft's servers) if it is enabled on your device already before following this guide.
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1. Open a command prompt and check your drive's partition table format with the following command. You should see "**GPT**" listed under "Partition Style":
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```powershell
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powershell Get-Disk
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```
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2. Run this command (in an admin command prompt) to check your TPM version. You should see `2.0` or `1.2` listed next to `SpecVersion`:
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```powershell
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powerhell Get-Disk 0 | findstr GPT && echo Este é um disco do sistema GPT!
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```
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3. Access [Advanced Startup Options](https://support.microsoft.com/windows/advanced-startup-options-including-safe-mode-b90e7808-80b5-a291-d4b8-1a1af602b617). You need to reboot while pressing the F8 key before Windows starts and go into the *command prompt* in **Troubleshoot** → **Advanced Options** → **Command Prompt**.
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4. Login with your admin account and type this in the command prompt to start encryption:
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```powershell
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manage-bde -on c: -used
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```
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5. Close the command prompt and continue booting to regular Windows.
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6. Feche o prompt de comando, e entre no PowerShell:
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```powershell
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manage-bde c: -protectors -add -rp -tpm
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manage-bde -protectors -enable c:
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manage-bde -protectors -get c: > %UserProfile%\Desktop\BitLocker-Recovery-Key.txt
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```
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<div class="admonition tip" markdown>
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<p class="admonition-title">Tip</p>
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Backup `BitLocker-Recovery-Key.txt` on your Desktop to a separate storage device. Loss of this recovery code may result in loss of data.
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</div>
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</details>
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### FileVault
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<div class="admonition recommendation" markdown>
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{ align=right }
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**FileVault** é a solução de encriptação de volume on-the-fly integrada em macOS. FileVault takes advantage of the [hardware security capabilities](os/macos-overview.md#hardware-security) present on an Apple Silicon SoC or T2 Security Chip.
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[:octicons-info-16:](https://support.apple.com/guide/mac-help/encrypt-mac-data-with-filevault-mh11785/mac){ .card-link title="Documentation" }
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</details>
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</div>
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We advise against using your iCloud account for recovery; instead, you should securely store a local recovery key on a separate storage device.
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### Configuração da Chave Unificada Linux (LUKS)
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<div class="admonition recommendation" markdown>
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{ align=right }
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**LUKS*** é o método padrão de criptografia de disco completo para Linux. Ele pode ser usado para criptografar volumes completos, partições ou criar containers criptografados.
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[:octicons-repo-16: Repository](https://gitlab.com/cryptsetup/cryptsetup#what-the-){ .md-button .md-button--primary }
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[:octicons-info-16:](https://gitlab.com/cryptsetup/cryptsetup/-/wikis/home){ .card-link title="Documentation" }
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[:octicons-code-16:](https://gitlab.com/cryptsetup/cryptsetup){ .card-link title="Source Code" }
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</details>
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</div>
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<details class="example" markdown>
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<summary>Creating and opening encrypted containers</summary>
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```bash
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dd if=/dev/urandom of=/path-to-file bs=1M count=1024 status=progress
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sudo cryptsetup luksFormat /path-to-file
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```
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#### Opening encrypted containers
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We recommend opening containers and volumes with `udisksctl` as this uses [Polkit](https://en.wikipedia.org/wiki/Polkit). A maioria dos gestores de ficheiros, tais como os incluídos em ambientes de desktop populares, consegue desbloquear ficheiros encriptados. Tools like [udiskie](https://github.com/coldfix/udiskie) can run in the system tray and provide a helpful user interface.
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```bash
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udisksctl loop-setup -f /path-to-file
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udisksctl unlock -b /dev/loop0
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```
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</details>
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<div class="admonition note" markdown>
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<p class="admonition-title">Remember to back up volume headers</p>
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Recomendamos que você sempre [faça backup dos seus cabeçalhos LUKS](https://wiki.archlinux.org/title/Dm-crypt/Device_encryption#Backup_and_restore) em caso de falha parcial da unidade. This can be done with:
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```bash
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cryptsetup luksHeaderBackup /dev/device --header-backup-file /mnt/backup/file.img
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```
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</div>
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## Linha de comando
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<small>Protects against the following threat(s):</small>
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- [:material-target-account: Ataques direcionados](basics/common-threats.md#attacks-against-specific-individuals ""){.pg-red}
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Tools with command-line interfaces are useful for integrating [shell scripts](https://en.wikipedia.org/wiki/Shell_script).
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### Kryptor
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<div class="admonition recommendation" markdown>
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{ align=right }
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**Kryptor** é uma ferramenta de criptografia e assinatura de arquivos livre e de código aberto que faz uso de algoritmos criptográficos modernos e seguros. It aims to be a better version of [age](https://github.com/FiloSottile/age) and [Minisign](https://jedisct1.github.io/minisign) to provide a simple, easier alternative to GPG.
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[:octicons-home-16: Homepage](https://kryptor.co.uk){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://kryptor.co.uk/features#privacy){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://kryptor.co.uk/tutorial){ .card-link title="Documentation" }
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[:octicons-code-16:](https://github.com/samuel-lucas6/Kryptor){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://kryptor.co.uk/#donate){ .card-link title="Contribute" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:fontawesome-brands-windows: Windows](https://kryptor.co.uk)
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- [:simple-apple: macOS](https://kryptor.co.uk)
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- [:simple-linux: Linux](https://kryptor.co.uk)
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</details>
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</div>
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### Túmulo
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<div class="admonition recommendation" markdown>
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{ align=right }
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**Tomb** é uma shell wrapper de linha de comando para LUKS. It supports steganography via [third-party tools](https://dyne.org/software/tomb/#advanced-usage).
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[:octicons-home-16: Homepage](https://dyne.org/software/tomb){ .md-button .md-button--primary }
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[:octicons-info-16:](https://github.com/dyne/Tomb/wiki){ .card-link title="Documentation" }
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[:octicons-code-16:](https://github.com/dyne/Tomb){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://dyne.org/donate){ .card-link title="Contribute" }
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</details>
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</div>
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## OpenPGP
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<small>Protects against the following threat(s):</small>
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- [:material-target-account: Ataques direcionados](basics/common-threats.md#attacks-against-specific-individuals ""){.pg-red}
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- [:material-bug-outline: Ataques passivos](basics/common-threats.md#security-and-privacy ""){.pg-orange}
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- [:material-server-network: Fornecedores de serviços](basics/common-threats.md#privacy-from-service-providers ""){.pg-teal}
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OpenPGP is sometimes needed for specific tasks such as digitally signing and encrypting email. Dica "Use padrões futuros ao gerar uma chave". For tasks such as signing or encrypting files, we suggest the above options.
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When encrypting with PGP, you have the option to configure different options in your `gpg.conf` file. We recommend staying with the standard options specified in the [GnuPG user FAQ](https://gnupg.org/faq/gnupg-faq.html#new_user_gpg_conf).
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<div class="admonition tip" markdown>
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<p class="admonition-title">Use future defaults when generating a key</p>
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When [generating keys](https://gnupg.org/gph/en/manual/c14.html) we suggest using the `future-default` command as this will instruct GnuPG use modern cryptography such as [Curve25519](https://en.wikipedia.org/wiki/Curve25519#History) and [Ed25519](https://ed25519.cr.yp.to):
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```bash
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gpg --quick-gen-key alice@example.com future-default
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```
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</div>
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### Guarda de Privacidade GNU
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<div class="admonition recommendation" markdown>
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{ align=right }
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**GnuPG** é uma alternativa GPL-licenciada ao conjunto de software criptográfico PGP. GnuPG está em conformidade com [RFC 4880](https://tools.ietf.org/html/rfc4880), que é a especificação atual da IETF do OpenPGP. The GnuPG project has been working on an [updated draft](https://datatracker.ietf.org/doc/draft-ietf-openpgp-crypto-refresh) in an attempt to modernize OpenPGP. GnuPG is a part of the Free Software Foundation's GNU software project and has received major [funding](https://gnupg.org/blog/20220102-a-new-future-for-gnupg.html) from the German government.
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[:octicons-home-16: Homepage](https://gnupg.org){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://gnupg.org/privacy-policy.html){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://gnupg.org/documentation/index.html){ .card-link title="Documentation" }
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[:octicons-code-16:](https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git){ .card-link title="Source Code" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:simple-googleplay: Google Play](https://play.google.com/store/apps/details?id=org.sufficientlysecure.keychain)
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- [:fontawesome-brands-windows: Windows](https://gpg4win.org/download.html)
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- [:simple-apple: macOS](https://gpgtools.org)
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- [:simple-linux: Linux](https://gnupg.org/download/index.html#binary)
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</details>
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</div>
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### GPG4win
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<div class="admonition recommendation" markdown>
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{ align=right }
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**GPG4win** é um pacote para Windows da [Intevation and g10 Code](https://gpg4win.org/impressum.html). Inclui [várias ferramentas](https://gpg4win.org/about.html) que auxiliam os usuários do PGP no Microsoft Windows. O projeto foi iniciado e originalmente [financiado por](https://web.archive.org/web/20190425125223/https://joinup.ec.europa.eu/news/government-used-cryptography) pelo Escritório Federal de Segurança da Informação (BSI) da Alemanha em 2005.
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[:octicons-home-16: Homepage](https://gpg4win.org){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://gpg4win.org/privacy-policy.html){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://gpg4win.org/documentation.html){ .card-link title="Documentation" }
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[:octicons-code-16:](https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gpg4win.git;a=summary){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://gpg4win.org/donate.html){ .card-link title="Contribute" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:fontawesome-brands-windows: Windows](https://gpg4win.org/download.html)
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</details>
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</div>
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### Suíte GPG
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<div class="admonition recommendation" markdown>
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{ align=right }
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**GPG Suite** provides OpenPGP support for [Apple Mail](email-clients.md#apple-mail-macos) and other email clients on macOS.
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We recommend taking a look at their [First steps](https://gpgtools.tenderapp.com/kb/how-to/first-steps-where-do-i-start-where-do-i-begin-setup-gpgtools-create-a-new-key-your-first-encrypted-email) and [Knowledge Base](https://gpgtools.tenderapp.com/kb) for support.
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[:octicons-home-16: Homepage](https://gpgtools.org){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://gpgtools.org/privacy){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://gpgtools.tenderapp.com/kb){ .card-link title="Documentation" }
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[:octicons-code-16:](https://github.com/GPGTools){ .card-link title="Source Code" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:simple-apple: macOS](https://gpgtools.org)
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</details>
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</div>
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Currently, GPG Suite does [not yet](https://gpgtools.com/sequoia) have a stable release for macOS Sonoma and later.
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### OpenKeychain
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<div class="admonition recommendation" markdown>
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{ align=right }
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**OpenKeychain** is an implementation of GnuPG for Android. It's commonly required by mail clients such as [Thunderbird](email-clients.md#thunderbird), [FairEmail](email-clients.md#fairemail-android), and other Android apps to provide encryption support.
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[:octicons-home-16: Homepage](https://openkeychain.org){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://openkeychain.org/help/privacy-policy){ .card-link title="Privacy Policy" }
|
|
[:octicons-info-16:](https://openkeychain.org/faq){ .card-link title="Documentation" }
|
|
[:octicons-code-16:](https://github.com/open-keychain/open-keychain){ .card-link title="Source Code" }
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|
|
|
<details class="downloads" markdown>
|
|
<summary>Downloads</summary>
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|
|
|
- [:simple-googleplay: Google Play](https://play.google.com/store/apps/details?id=org.sufficientlysecure.keychain)
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|
|
</details>
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</div>
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Cure53 completed a [security audit](https://openkeychain.org/openkeychain-3-6) of OpenKeychain 3.6 in October 2015. The published audit and OpenKeychain's solutions to the issues raised in the audit can be found [here](https://github.com/open-keychain/open-keychain/wiki/cure53-Security-Audit-2015).
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## Framadate
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**Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
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### Minimum Qualifications
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- Cross-platform encryption apps must be open source.
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|
- File encryption apps must support decryption on Linux, macOS, and Windows.
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|
- External disk encryption apps must support decryption on Linux, macOS, and Windows.
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- Internal (OS) disk encryption apps must be cross-platform or built in to the operating system natively.
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### Melhor caso
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Os nossos melhores critérios representam o que gostaríamos de ver num projeto perfeito desta categoria. As nossas recomendações podem não incluir todas as funcionalidades, mas incluem as que, na nossa opinião, têm um impacto mais elevado.
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- Operating System (FDE) encryption apps should utilize hardware security such as a TPM or Secure Enclave.
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- File encryption apps should have first- or third-party support for mobile platforms.
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