# US 9,521,370 B2 · Level-two decryption associated with individual privacy and public safety protection via double encrypted lock box > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,521,370 B2 - Document ID: US9521370B2 - Status: Granted - Kind: B2 - Application number: 13/731,751 - Filed: 2012-12-31 - Published: 2014-07-03 - Granted: 2016-12-13 - Earliest claimed: 2012-07-12 - Assignees: Elwha LLC - Applicants: Elwha LLC - Inventors: Edward K. Y. Jung; Royce A. Levien; Richard T. Lord; Robert W. Lord; Mark A. Malamud - Web page: https://patentgrep.com/patent/US9521370B2 ## CPC - H04N 7/1675: {Providing digital key or authorisation information for generation or regeneration of the scrambling sequence (pseudo-random number generators in general G06F7/58)} - H04L 9/0861: {Generation of secret information including derivation or calculation of cryptographic keys or passwords} - H04L 9/088: {Usage controlling of secret information, e.g. techniques for restricting cryptographic keys to pre-authorized uses, different access levels, validity of crypto-period, different key- or password length, or different strong and weak cryptographic algorithms (network architectures or network communication protocols for using time-dependent keys in a packet data network H04L63/068)} - H04L 9/14: using a plurality of keys or algorithms - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Systems and/or processes related but not limited to a machine configured to create a physical reality of receiving a level-one encrypted output of a surveillance device; a machine configured to create a physical reality of decrypting at least a part of the level-one encrypted output of the surveillance device with a level-one decryption key that is practicably inaccessible by a level-one encryption entity; and a machine configured to create a physical reality of transmitting a plaintext output of the surveillance device. Other machines/processes are also disclosed/claimed. ## Claims ### Claim 1 A method comprising: receiving a level-one encrypted output of a surveillance device; decrypting at least a part of the level-one encrypted output of the surveillance device with a level-one decryption key that is practicably inaccessible by a level-one encryption entity associated with the level-one encryption of the output of the surveillance device; and transmitting a plaintext output of the surveillance device, the transmitting the plaintext output of the surveillance device in conjunction with a surveillance device identifier, and the transmitting the plaintext output of the surveillance device in conjunction with an encrypted version of the surveillance device identifier, wherein the transmitting the plaintext output of the surveillance device in conjunction with the encrypted version of the surveillance device identifier includes: receiving an encryption of at least a part of a version of the surveillance device identifier that was encrypted with a name-obscuring encryption key whose decryption key is inaccessible by the level-one encryption entity, the name-obscuring encryption key being a different encryption key from a level-one encryption key used to encrypt the output of the surveillance device in order to generate the level-one encrypted output of the surveillance device; and transmitting the encryption of at least the part of the version of the surveillance device identifier in conjunction with the plaintext output of the surveillance device to name de-obscuring circuitry. ### Claim 2 (depends on 1) The method of claim 1, wherein receiving a level-one encrypted output of a surveillance device comprises: accepting an output of level-two decryption circuitry. ### Claim 3 (depends on 1) The method of claim 1, wherein receiving a level-one encrypted output of a surveillance device comprises: accepting a level-one encrypted version of an output of at least one of an image surveillance device, an audio surveillance device, a motion surveillance device, or a tactile surveillance device. ### Claim 4 (depends on 1) The method of claim 1, wherein receiving a level-one encrypted output of a surveillance device comprises: accepting the level-one encrypted output of the surveillance device in a form such that the level-one encrypted output of the surveillance device is substantially unusable absent combination with other information not present in the level-one encrypted output of the surveillance device. ### Claim 5 (depends on 4) The method of claim 4, wherein accepting the level-one encrypted output of the surveillance device in a form such that the level-one encrypted output of the surveillance device is substantially unusable absent combination with other information not present in the level-one encrypted output of the surveillance device comprises: accepting an output of level-two encryption circuitry, the output associated with a level-one encryption which cannot practicably be decrypted by a level-one encryption entity. ### Claim 6 (depends on 5) The method of claim 5, wherein accepting an output of level-two encryption circuitry, the output associated with a level-one encryption which cannot practicably be decrypted by a level-one encryption entity comprises: accepting an output of level-two encryption circuitry, the output associated with a level-one key-pair generation entity. ### Claim 7 (depends on 6) The method of claim 6, wherein accepting an output of level-two encryption circuitry, the output associated with a level-one key-pair generation entity comprises: accepting an output of level-two encryption circuitry, the output associated with a decryption key generated by a level-one key-pair generation entity. ### Claim 8 (depends on 6) The method of claim 6, wherein accepting an output of level-two encryption circuitry, the output associated with a level-one key-pair generation entity comprises: accepting an output of level-two encryption circuitry, the output associated with a key-pair designator generated by a level-one key-pair generation entity. ### Claim 9 (depends on 1) The method of claim 1, wherein decrypting at least a part of the level-one encrypted output of the surveillance device with a level-one decryption key that is practicably inaccessible by a level-one encryption entity associated with the level-one encryption of the output of the surveillance device comprises: receiving the level-one decryption key inaccessible by a level-one encryption entity from a level-one key-pair generation entity. ### Claim 10 (depends on 9) The method of claim 9, wherein receiving the level-one decryption key inaccessible by a level-one encryption entity from a level-one key-pair generation entity comprises: receiving a level-one key pair designator from the level-one key-pair generation entity. ### Claim 11 (depends on 1) The method of claim 1, wherein decrypting at least a part of the level-one encrypted output of the surveillance device with a level-one decryption key that is practicably inaccessible by a level-one encryption entity associated with the level-one encryption of the output of the surveillance device comprises: receiving a level-one key pair designator from a level-one key-pair generation entity in a form of a level-one decryption key that may thereafter function as the level-one key-pair designator. ### Claim 12 (depends on 1) The method of claim 1, wherein decrypting at least a part of the level-one encrypted output of the surveillance device with a level-one decryption key that is practicably inaccessible by a level-one encryption entity associated with the level-one encryption of the output of the surveillance device comprises: decrypting at least a part of a level-one encrypted output of the surveillance device via combination with other information not present in the level-one encrypted output of the surveillance device. ### Claim 13 (depends on 12) The method of claim 12, wherein decrypting at least a part of a level-one encrypted output of the surveillance device via combination with other information not present in the level-one encrypted output of the surveillance device comprises: receiving a level-one decryption key inaccessible by the level-one encryption entity from a level-one key-pair generation entity. ### Claim 14 (depends on 13) The method of claim 13, wherein receiving a level-one decryption key inaccessible by a level-one encryption entity from a level-one key-pair generation entity comprises: receiving a level-one key pair designator from level-two decryption circuitry. ### Claim 15 (depends on 1) The method of claim 1 wherein transmitting a plaintext output of the surveillance device in conjunction with an encrypted version of the surveillance device identifier comprises: receiving an encrypted version of the surveillance device identifier. ### Claim 16 (depends on 1) The method of claim 1, wherein transmitting a plaintext output of the surveillance device comprises: transmitting a plaintext output of the surveillance device to presentation-related circuitry. ### Claim 17 (depends on 16) The method of claim 16, wherein transmitting a plaintext output of the surveillance device to presentation-related circuitry comprises: transmitting a plaintext output of the surveillance device to unpresentable-to-presentable conversion circuitry. ### Claim 18 (depends on 16) The method of claim 16, wherein transmitting a plaintext output of the surveillance device to presentation-related circuitry comprises: transmitting a plaintext output of the surveillance device to a computational device having at least one of an audio, a visual, or a tactile presentation component.