Private Exchange Hub

Commit first. Reveal together.

Exchange confidential files without giving either participant an early look, or giving the organizer either private decryption key.

Open Exchange Hub Read the security guide

An account is required to organize an exchange. Invited participants enroll through their individual claim links.

Private exchange Encrypted before upload
Participant AIndependent enrollment
Browser-held key
Package committed
Atomic release
Participant BIndependent enrollment
Browser-held key
Package committed
No early retrieval
Local decryption
Signed receipt chain
A mutual commitment protocol

Four clear stages. No trust theater.

The exchange boundary is visible from invitation through receipt export, so both participants know what is fixed and when retrieval becomes possible.

  1. 01

    Invite each participant separately

    Set the participants, deadline, and file policy. Each person receives a distinct invitation they can revisit through the exchange deadline.

  2. 02

    Create keys in each browser

    Each participant enrolls independently. Their browser creates the private key and keeps it out of the organizer’s hands.

  3. 03

    Encrypt, review, and commit

    The file and optional access code are encrypted before upload. Once committed, a package cannot be swapped for another.

  4. 04

    Reveal both packages together

    Neither side can retrieve early. The second commitment releases both encrypted packages, which are verified and decrypted locally.

Stays out of Phasoric’s hands

The secrets required for the exchange.

  • Participant private decryption keys
  • Plaintext files
  • Packaged passwords or access codes
  • Finished participant bearer credentials
Phasoric coordinates

The shared state that makes the exchange fair.

  • Participant names, email addresses, and public keys
  • The selected exchange policy and deadline
  • Encrypted packages, integrity hashes, and lifecycle state
  • A signed, exportable receipt chain
Built for consequential handoffs

Use it when sequence matters as much as secrecy.

Private Exchange is designed for two-party, one-package-each workflows. It is not a general collaboration folder, identity-verification service, or recoverable key escrow.

Reciprocal disclosures

Exchange two confidential disclosures without letting one participant inspect the other submission first.

Sealed proposals

Hold both proposals behind the same commitment boundary until each party has deposited its final package.

Protected document swaps

Require a password-protected PDF and carry the access code inside the locally encrypted package.

Time-bounded handoffs

Set an expiration window, track lifecycle state, and export a portable receipt bundle before cleanup.

Policy choices

Set the file boundary before anyone commits.

General exchange

Use broader file types with the same independent enrollment, local encryption, atomic release, and receipt protocol.

Protected PDF

Require a PDF, a password that opens it, and an explicit final commitment confirmation in the participant browser.

Ready when both sides are

Create the exchange. Let the protocol enforce the order.

Invite two participants, choose a policy and deadline, then follow every enrollment, commitment, release, and receipt from one hub.

Open Exchange Hub Explore privacy architecture