Multi-component article with cross-component deterministic values and underlying value protection
A physical multi-component article with cross-component deterministic values and underlying value protection (in some cases without any on-board source of power or computing capabilities) is configured to maintain access information for a digital wallet on a decentralized computing platform, like a blockchain-based decentralized computing platform. Private access information, like private key ciphertext and key or passphrase by which the private key ciphertext may be converted to plaintext, are physically concealed with tamper-evident components such that a user can readily determine by visual inspection of the apparatus whether, and what, private access information was divulged. In some examples, a user is required to activate one or more tamper-evident features, thereby altering a visible state of the apparatus, to access certain functions of a digital wallet corresponding to the apparatus.
1. An apparatus for physically maintaining digital wallet credentials, comprising:
a substrate having a surface area corresponding to a face of the substrate, the surface area comprising:
a first region of the surface area including a first unique identifier, and
a second region of the surface area including a passphrase; and
a multi-layer sticker affixed to the face of the substrate, the multi-layer sticker comprising:
a first layer concealing all or some of the second region of the substrate without concealing the first unique identifier within the first region, and having disposed thereon:
a second unique identifier, and
encrypted private key information, the encrypted private key information based on the passphrase and a private key of a key-pair;
a second layer encapsulating a portion of the first layer to conceal the encrypted private key information without concealing the first unique identifier and the second unique identifier, the second layer comprising at least one tamper-evident feature and having disposed thereon:
a third unique identifier, and
public access information;
wherein a correspondence of values of the unique identifiers indicates a correspondence between the passphrase, the encrypted private key information, and the public access information, wherein:
the substrate is round;
the second layer covers a portion of private access information disposed on the face of the substrate;
the portion of private access information disposed on the face of the substrate is the passphrase within the second region; and
the second layer covers all or some of the passphrase.
2. The apparatus of claim 1 , wherein the substrate is a circular body of metal.
3. The apparatus of claim 1 , wherein the second layer conceals all of the passphrase.
4. The apparatus of claim 1 , wherein:
the first layer that conceals all or some of the second region of the substrate conceals all or some of the passphrase.
5. The apparatus of claim 1 , wherein:
the second layer conceals private access information disposed on both the face of substrate and the first layer, the private access information including the encrypted private key information and the passphrase.
6. An apparatus for physically maintaining digital wallet credentials, comprising:
a substrate having a surface area corresponding to a face of the substrate, the surface area comprising:
a first region of the surface area including a first unique identifier, and
a second region of the surface area including a passphrase; and
a multi-component sticker affixed to the face of the substrate, the multi-component sticker comprising:
a first component concealing all or some of the second region of the substrate without concealing the first unique identifier within the first region, and having disposed thereon:
a second unique identifier, and
encrypted private key information, the encrypted private key information based on the passphrase and a private key of a key-pair;
a second component encapsulating a portion of the first component to conceal the encrypted private key information without concealing the first unique identifier and the second unique identifier, the second component comprising at least one tamper-evident feature and having disposed thereon:
a third unique identifier, and
public access information;
wherein a correspondence of values of the unique identifiers indicates a correspondence between the passphrase, the encrypted private key information, and the public access information, wherein:
the second component covers a portion of private access information disposed on the face of the substrate;
the portion of private access information disposed on the face of the substrate is the passphrase disposed within the second region; and
the second component covers all or some of the passphrase.
7. The apparatus of claim 6 , wherein:
the substrate is a round body of metal.
8. The apparatus of claim 7 , wherein:
the second layer conceals all of the passphrase.
9. The apparatus of claim 6 , wherein:
the first component that conceals all or some of the second region of the substrate conceals all or some of the passphrase.
10. The apparatus of claim 6 , wherein:
the second component conceals private access information disposed on both the face of substrate and the first component, the private access information including the encrypted private key information and the passphrase.
11. An apparatus for physically maintaining digital wallet credentials comprising:
a multi-layer sticker comprising:
a first information layer comprising a first identifier and private key ciphertext information, the private key ciphertext information associated with a passphrase by which a private key is obtainable in plaintext based on the private key ciphertext information and the passphrase;
a first adhesive layer by which the first information layer is adhered to a surface;
a second information layer comprising a second identifier and public information associated with the private key plaintext, the second information layer concealing a portion of the first information layer comprising the private key ciphertext information without concealing the first identifier; and
a second adhesive layer by which the second information layer is adhered to the surface, the second adhesive layer configured to render visually evident lifting of the second information layer from the surface to reveal the concealed portion of the first information layer; and
a substrate comprising:
a first surface region including the passphrase disposed thereon and the surface to which the multi-layer sicker is adhered; and
a second surface region including a third identifier;
wherein a correspondence of values of the identifiers indicates a correspondence between the passphrase, the private key ciphertext information, and the public information, wherein:
the multi-layer sicker covers a portion of private access information disposed on the surface of the substrate;
the portion of private access information disposed on the surface of the substrate is the passphrase disposed within the first surface region; and
the multi-layer sicker covers all or some of the passphrase.
12. The apparatus of claim 11 , wherein:
the substrate is a round body of metal.
13. The apparatus of claim 12 , wherein:
the second information layer conceals all of the passphrase.
14. The apparatus of claim 11 , wherein:
the first information layer conceals all or some of the passphrase within the first region.
15. The apparatus of claim 11 , wherein:
the second information layer conceals all of the passphrase within the first region.
16. An apparatus for physically maintaining digital wallet credentials comprising:
a multi-component sticker comprising:
a first component having a first identifier and private key ciphertext information disposed thereon, the private key ciphertext information associated with a passphrase by which a private key is obtainable in plaintext based on the private key ciphertext information and the passphrase, and a first adhesive by which the first component is adhered to a surface;
a second component having a second identifier and public information disposed thereon, the public information associated with the private key plaintext, the second component concealing a portion of the first component comprising the private key ciphertext information without concealing the first identifier, and a second adhesive by which the second component is adhered to the surface, the second adhesive configured to render visually evident lifting of the second component from the surface to reveal the concealed portion of the first component; and
a substrate comprising:
a first surface region including the passphrase disposed thereon and the surface to which the multi-component sicker is adhered; and
a second surface region including a third identifier;
wherein a correspondence of values of the identifiers indicates a correspondence between the passphrase, the private key ciphertext information, and the public information, wherein:
the multi-component sicker covers a portion of private access information disposed on the surface of the substrate;
the portion of private access information disposed on the surface of the substrate is the passphrase disposed within the first surface region, and
the multi-layer sicker covers all or some of the passphrase.
17. The apparatus of claim 16 , wherein:
the substrate is a round body of metal.
18. The apparatus of claim 17 , wherein:
the multi-layer sicker conceals all of the passphrase.
19. The apparatus of claim 16 , wherein:
the first component conceals all or some of the passphrase within the first region.
20. The apparatus of claim 16 , wherein:
the second component conceals all of the passphrase within the first region.