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Features

Preserve, verify, restore, attest.

What Obscura Vault does, function by function. The user guide gives the details of each.

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01

.obf archives

Obscura Vault keeps your originals in .obf archives: a tar container compressed with zstd, signed, and encrypted if you wish.

  • tar container, zstd compression
  • Optional AES-GCM encryption
  • Ed25519 signature
Learn more
02

Fixity checks

A SHA-256 checksum per file, recomputed during scheduled audits and compared with its reference: an altered file does not go unnoticed.

  • SHA-256 checksums
  • Scheduled audits
  • “Not verifiable” always kept apart from “verified good”
Learn more
03

Backup and restore

Offsite copies of your archives, database backups, and a restore that never overwrites a file already there.

  • Offsite: S3 or compatible storage, remote folder, synced folder (iCloud Drive, Google Drive, Dropbox, OneDrive)
  • Full or incremental revisions, restored with their chain
  • Automatic database backups
04

Preservation certificate

A document attesting the integrity of an archive and the fixity of a file at a given date.

  • Integrity of an archive
  • Fixity of a file
  • Dated
Learn more

In pictures

Obscura Vault

Screenshots taken in Obscura Vault, on a demo library.

The Obscura Vault Archives screen: three verified .obf archives, one encrypted and one incremental revision restorable with its chain, with Verify and Restore
.obf archives
The Obscura Vault Integrity screen: verified, altered, unverifiable and never checked files, scheduled audits, state per project and files to examine
Integrity
The Obscura Vault Offsite screen: archives sent to a destination, encrypted or not, archives at the destination and latest transfers
Offsite copies
Verifying a preservation certificate in Obscura Vault: valid signature, known key, not revoked, and the certificate's details
Verify a certificate

Principles

Open standards, honest results.

Public formats and algorithms, and results that state exactly what was verified.

Open formats

An .obf archive is built on tar and zstd, two open, publicly documented formats.

SHA-256 checksums

A standardized hash function (FIPS 180-4): the slightest change to a file changes its checksum.

Honest results

A check that could not take place stays “not verifiable”. It never counts as “verified good”.

Ed25519 signature

A standardized digital signature (RFC 8032) comes with every archive.

Optional encryption

AES-GCM encrypts an archive's content and detects any change to it; you choose whether to turn it on.

On your Mac

A macOS app from the Obscura Flow ecosystem.

Next step

Preserved originals, verified integrity.

Obscura Vault is available for macOS. Download it from your Obscura member area, or write to us to learn more.

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