GB201301265D0 - Selective downlink data encryption system for satellites - Google Patents

Selective downlink data encryption system for satellites

Info

Publication number
GB201301265D0
GB201301265D0 GB201301265A GB201301265A GB201301265D0 GB 201301265 D0 GB201301265 D0 GB 201301265D0 GB 201301265 A GB201301265 A GB 201301265A GB 201301265 A GB201301265 A GB 201301265A GB 201301265 D0 GB201301265 D0 GB 201301265D0
Authority
GB
United Kingdom
Prior art keywords
commands
encrypted
satellite
information
block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB201301265A
Other versions
GB2500753B (en
GB2500753A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boeing Co
Original Assignee
Boeing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US13/403,669 external-priority patent/US9001642B2/en
Application filed by Boeing Co filed Critical Boeing Co
Publication of GB201301265D0 publication Critical patent/GB201301265D0/en
Publication of GB2500753A publication Critical patent/GB2500753A/en
Application granted granted Critical
Publication of GB2500753B publication Critical patent/GB2500753B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
    • H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator

Abstract

A satellite receives an uplink signal containing instructions identifying both a block of information which is to be encrypted and a portion of the block of information from which a key is to be generated. An XOR operation is performed between the key and the block of information to produce an encrypted signal which is transmitted on the downlink. The block of information may contain telemetry data or/and commands received and processed by the satellite. Thus claims 1 and 18 appear to require that plaintext is encrypted using a key generated on the basis of a portion of the plaintext to be encrypted. In another embodiment the satellite receives encrypted commands, decrypts the commands using a first module, processes the commands and encrypts telemetry data using a second module. The telemetry data is encrypted using a key generated from a portion of the processed commands. The invention allows multiple users to share a satellite without revealing to each other commands they have issued to the satellite or telemetry data the satellite has produced in response to the commands.
GB1301265.3A 2012-02-23 2013-01-24 Selective downlink data encryption system for satellites Active GB2500753B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/403,669 US9001642B2 (en) 2011-09-23 2012-02-23 Selective downlink data encryption system for satellites

Publications (3)

Publication Number Publication Date
GB201301265D0 true GB201301265D0 (en) 2013-03-06
GB2500753A GB2500753A (en) 2013-10-02
GB2500753B GB2500753B (en) 2019-03-13

Family

ID=47843806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1301265.3A Active GB2500753B (en) 2012-02-23 2013-01-24 Selective downlink data encryption system for satellites

Country Status (1)

Country Link
GB (1) GB2500753B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109600352A (en) * 2017-10-03 2019-04-09 波音公司 Commercial satellite operation is carried out using the safety zone operated for payload

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10516992B2 (en) 2017-03-06 2019-12-24 The Boeing Company Commercial satellite operations with secure enclave for payload operations

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6912284B1 (en) * 1983-06-13 2005-06-28 The United States Of America As Represented By The National Security Agency Self-Authenticating cryptographic apparatus
JPS62114350A (en) * 1985-11-13 1987-05-26 Hitachi Ltd Privacy system for remote sensing data
US4688250A (en) * 1986-01-29 1987-08-18 Rca Corporation Apparatus and method for effecting a key change via a cryptographically protected link
WO2013085122A1 (en) * 2011-12-08 2013-06-13 아주대학교산학협력단 Method for analog network coding-based satellite communication and apparatus for same
CN102684868B (en) * 2012-04-20 2015-03-04 上海卫星工程研究所 Meteorological satellite data encryption method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109600352A (en) * 2017-10-03 2019-04-09 波音公司 Commercial satellite operation is carried out using the safety zone operated for payload
CN109600352B (en) * 2017-10-03 2022-10-18 波音公司 Commercial satellite operation with secure zones for payload operation

Also Published As

Publication number Publication date
GB2500753B (en) 2019-03-13
GB2500753A (en) 2013-10-02

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