Digital security bubble

• US 10,038,677 B1
• Filed: 04/25/2017
• Issued: 07/31/2018
• Est. Priority Date: 07/16/2012
• Status: Active Grant

• Current Assignee: Wickr Inc. (Amazon.com, Inc.)
• Original Assignee: Wickr Inc. (Amazon.com, Inc.)
• Inventors: Howell, Christopher, Statica, Robert, Coppa, Kara Lynn
• Primary Examiner(s): Reza, Mohammad W
• Application Number:
  US15/496,187
• Time in Patent Office: 462 Days
• Field of Search: 713171
• CPC Class Codes: G06F 21/62 Protecting access to data via a platform, e.g. using keys or access control rules
• CPC Class Codes: G06F 21/84 output devices, e.g. displays or monitors
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 2203/04808 Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen
• CPC Class Codes: G06F 3/0481 based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
• CPC Class Codes: G06V 20/64 Three-dimensional objects
• CPC Class Codes: H04L 2209/24 Key scheduling, i.e. generating round keys or sub-keys for block encryption
• CPC Class Codes: H04L 63/04 for providing a confidential data exchange among entities communicating through data packet networks
• CPC Class Codes: H04L 63/0421 Anonymous communication, i.e. the party's identifiers are hidden from the other party or parties, e.g. using an anonymizer
• CPC Class Codes: H04L 63/0435 wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption cryptographic mechanisms or cryptographic arrangements for symmetric key encryption H04L9/06
• CPC Class Codes: H04L 63/0442 wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption cryptographic mechanisms or cryptographic arrangements for public-key encryption H04L9/30
• CPC Class Codes: H04L 63/061 for key exchange, e.g. in peer-to-peer networks cryptographic mechanisms or cryptographic arrangements for key agreement H04L9/0838
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32
• CPC Class Codes: H04L 63/0853 using an additional device, e.g. smartcard, SIM or a different communication terminal cryptographic mechanisms or cryptographic arrangements for entity authentication involving additional secure or trusted devices H04L9/3234
• CPC Class Codes: H04L 9/08 Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords network architectures or network communication protocols for supporting key management in a packet data network H04L63/06
• CPC Class Codes: H04L 9/0816 Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
• CPC Class Codes: H04L 9/0822 using key encryption key
• CPC Class Codes: H04L 9/0825 using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
• CPC Class Codes: H04L 9/0841 : involving Diffie-Hellman or related key agreement protocols
• CPC Class Codes: H04L 9/0869 : involving random numbers or seeds
• CPC Class Codes: H04L 9/30 : Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
• CPC Class Codes: H04L 9/3066 : involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
• CPC Class Codes: H04L 9/3236 : using cryptographic hash functions

Abstract

A digital security bubble encapsulation is disclosed. A public key and a device identifier of at least one recipient is requested from a first server. A message containing one or more components is encrypted using a symmetric key. The symmetric key is encrypted with a public key received in response to the request. The encrypted message, the encrypted symmetric key, and the device identifier are encapsulated in a digital security bubble encapsulation. The digital security bubble encapsulation is transmitted to a second server.

Claims

1. A system, comprising:

a processor configured to;

receive, at a first device, an encrypted encapsulation from a sender, wherein the encrypted encapsulation includes an encrypted communication, an encrypted first key, and a first identifier;

determine whether the first device is permitted to access the encrypted encapsulation by comparing the first identifier received in the encrypted encapsulation with a second identifier related to one or more components of the first device;

decrypt the encrypted first key using at least a second key when the first identifier matches the second identifier;

decrypt the encrypted communication using the first key to produce a decrypted communication; and

provide the decrypted communication to a recipient;

a memory coupled to the processor and configured to provide the processor with instructions.

2. They system of claim 1, wherein the first key is a symmetric key.

3. The system of claim 1, wherein the second key is a private key of the recipient.

4. The system of claim 1, wherein the encrypted encapsulation includes a plurality of recipients.

5. The system of claim 4, wherein the encrypted encapsulation includes a plurality of first keys encrypted, in part, with a second key associated with each of the plurality of recipients.

6. The system of claim 1, wherein the encrypted encapsulation includes at least one communication control option.

7. The system of claim 6, wherein the at least one communication control option includes a time-to-live value for the communication.

8. The system of claim 7, wherein the processor is further configured to:

delete the decrypted communication when the time-to-live value expires.

9. A method, comprising:

receiving, at a first device, an encrypted encapsulation from a second device, wherein the encrypted encapsulation includes an encrypted communication, an encrypted first key, and a first identifier;

determining, at the first device, whether the first device is permitted to access the encrypted encapsulation by comparing the first identifier received in the encrypted encapsulation with a second identifier related to one or more components of the first device;

decrypting, by the first device, the encrypted first key using at least a second key when the first identifier matches the second identifier;

decrypting, by the first device, the encrypted communication using the first key to produce a decrypted communication; and

providing, by the first device, the decrypted communication to a user of the first device.

10. The method of claim 9, wherein the first key is a symmetric key.

11. The method of claim 9, wherein the second key is a private key of the user.

12. The method of claim 9, wherein the encrypted encapsulation includes a plurality of recipients.

13. The method of claim 12, wherein the encrypted encapsulation includes a plurality of first keys encrypted, in part, with a second key associated with each of the plurality of recipients.

14. The method of claim 9, further comprising:

deleting, by the first device, the decrypted communication when a time-to-live value associated with the decrypted communication.

15. A non-transitory computer-readable medium comprising instructions that when, executed by at least one processor, perform the steps of:

receiving, at a first device, an encrypted encapsulation from a second device, wherein the encrypted encapsulation includes an encrypted communication, an encrypted first key, and a first identifier;

determining whether the first device is permitted to access the encrypted encapsulation by comparing the first identifier received in the encrypted encapsulation with a second identifier related to one or more components of the first device;

decrypting the encrypted first key using at least a second key when the first identifier matches the second identifier;

decrypting the encrypted communication using the first key to produce a decrypted communication; and

providing the decrypted communication to a user of the first device.

16. The non-transitory computer-readable medium of claim 15, wherein the first key is a symmetric key.

17. The non-transitory computer-readable medium of claim 15, wherein the second key is a private key of the user.

18. The non-transitory computer-readable medium of claim 15, wherein the encrypted encapsulation includes a plurality of recipients.

19. The non-transitory computer-readable medium of claim 18, wherein the encrypted encapsulation includes a plurality of first keys encrypted, in part, with a second key associated with each of the plurality of recipients.

20. The non-transitory computer-readable medium of claim 15, further comprising instructions for:

deleting the decrypted communication when a time-to-live value expires.