"Don't put all your eggs in one basket" is all wrong... Put all your eggs in one basket, and then watch and carry the one basket. It is trying to carry too many baskets that breaks most eggs in this country.
Andrew Carnegie

All Your Eggs
in One Counterseal Basket

The onetime richest man in the world went on to say he who carries three baskets must put one on his head, which is apt to tumble and trip him up. One fault of the American businessmen is lack of concentration.

Enter the Ai-Fi Counterseal.

It is no ordinary basket but an amalgamation of various originally distinct secret keeping schemes, consolidated through our end-to-end but federated private emails and threshold crypto-signature technology. It is the one basket that meets your entire egg storage needs without disrupting concentration and safely keeping all your crypto seeds, email encryption materials, multi-factor eSignatures, master password of your password manager and all critical secrets under an integrated solitary privacy-preserving Counterseal protection umbrella.


Ai-Fi Incognito Cloud

Crucial to the single egg basket design is the Ai-Fi Incognito Cloud where a variety of digital valuables are locked away in various types of Cryptons. Each Crypton is protected by a private/public key pair, retrievable through a password/passphrase and Entropy Extender for customizable cryptographic strength comparable to or stronger than Bitcoins on the blockchain. This is how your egg basket is made indestructible.

Adapt to the Latest Technology

Safely keep your private notes, crypto seed mnemonics, email encryption materials, and master password of your password manager under the integrated all-inclusive privacy-preserving Counterseal protection umbrella.

Signal Protocol Maximized for eSign Contracting

Eliminating the service cloud and extending the popular Signal Protocol with metadata anonymization, the Counterseal blend of digital identity, customizable multi-factor authentication, end-to-end PlexiMail encryption and message registration leads naturally to the strongest eSignature solution most resembling the traditional, immediate, and face-to-face negotiation process without involving any service providers, widely recognized as the low hanging fruits for cyber attacks, snoops and a variety of compromises, not to mention the intrusion into the Lawyer-Client confidentiality. CryptoSign closes the gaps in scenarios where insider confidentiality is of critical concern such as mergers and acquisitions, price biddings, IP transfer, offshore outsourcing and many others.


The Counterseal mobile app for your phones is the portal to the Counterseal application suite. Each application in the suite may have auxiliary supports running on Windows or Mac desktop which need to be separately downloaded. The PlexiWallet has the most extensive supports due to its many redundant parts and therefore is separately described in the next section.      Get PlexiWallet
Although simple, the concept of Crypton is fundamental to some important aspects of our secret keeping scheme, especially when the Ai-Fi Incognito Cloud is utilized to safekeeping the secrets.
The PlexiMail is described here in its historical context, which is released through our free and open sources. Once secured end-to-end without leaking metadata but still maintaining its most important federation property, PlexiMail opens up many new applications for email, the most popular messaging tool in the world. Our CryptoSign eSignature solution demonstrates one such possibility.
The CryptoVault is hopefully self-explanatory.

Counterseal Desktop for Windows

Accessing Mobile Workspace and Cryptons


PlexiWallet Downloads

Counterseal Primary/Secondary Signers run independently and cooperatively in signing crypto transactions, assisted by the Ai-Fi Incognito Cloud. In addition to the sub-app PlexiWallet embedded in the Counterseal app, several mobile mobile packages are also independently offered for easy access. The various Secondary Signers augment the function of the Primary but is not directly involved in signing. Currently the Ai-Fi CounterSeal app is supported on Apple iOS only, whereas the PlexiWallet has extensive implementation on many platforms.
Since they are stateless, any Primary works with any other Secondary signers. Select the proper Primary/Secondary pair to suit your platforms and your personal risk profile.

Counterseal PlexiWallet Readme

This is for safekeeping your wallet seed mnemonics and signing air-gapped Bitcoin transactions, consisting of two separate components. All critical data are delegated to the care of Ai-Fi Incognito Cloud.

Ai-Fi Counterseal Cookbook

Ai-Fi Central is the mobile app for interfacing with the Ai-Fi privacy-preserving security infrastructure. Ai-Fi Incognito Cloud is a small but critical building block of it, supporting the anonymous and secure storage of all crypto keys.

PlexiWallet for iOS

Primary Signer


PlexiWallet for Android

Primary Signer

SHA256: 2e9f98b1a6c773ef136e26ba5368d6b78c71ca1fcb74fbf00d48e517e8b8b0e3

PlexiWallet Live System

Secondary Signer

SHA256: 43959bc31a406966f6c96fc97054213fd353793727615d3c571a2ed45f7fd9e3

PlexiWallet for Windows

Secondary Signer

SHA256: 385f6cd881f6d29c2e26529db50aa12c3298ad6966883339eea5132918c7544f

PlexiWallet for MacOS

Secondary Signer

SHA256: ddf61fa519ba13caf289e9503366b4f7b705d673164c771f7d55c931bb967111

PlexiWallet for Linux

Secondary Signer

SHA256: 3867404c9d964e16bc7aa15d2fc685d6578a6b3f3d78d1c22cb74b7b08a8c915