Sphinx (Esfinge)

What is Sphinx (Esfinge)?

Esfinge is Webcafeína's desktop encryption and password-management application, listed as Sphinx on Softonic. It can turn a password, token or connection string into an encrypted ESF1 text line, or encrypt files dragged into its window without changing the originals. The publisher describes XChaCha20-Poly1305 encryption with Argon2id key derivation. These are documented capabilities, not an independent security audit.

For reusable credentials, the application also offers a searchable local encrypted vault with notes, documents, password generation and one-time verification codes. The publisher documents imports from Dashlane, Bitwarden, 1Password, LastPass and Chrome. Local use does not require an account; an optional encrypted account supports use across devices. Browser filling requires a separate extension and enabling the local browser channel in Settings.

Key handling is the important constraint. Ordinary encrypted text and files cannot be recovered without their encryption key, according to Webcafeína. The vault has a separate recovery key shown once when it is created; that exception is not a recovery service for other encrypted files. Keep recovery material separate from the data it unlocks.

This entry links to the publisher's Windows EXE installer for version 2.58.7, not Softonic's differently formatted 2.5.8.7 version label. The publisher states that the application is unsigned, so Windows can show a warning. Softonic lists Windows 11 and a Spanish interface; the consulted publisher pages do not establish a minimum Windows build or installer CPU architecture. The screenshot is the publisher's older Spanish-language light-theme illustration, whose footer shows 2.0.3, rather than a capture of this release.

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