WO1997048207B1 - Device and method for dynamic encryption - Google Patents
Device and method for dynamic encryptionInfo
- Publication number
- WO1997048207B1 WO1997048207B1 PCT/US1997/009277 US9709277W WO9748207B1 WO 1997048207 B1 WO1997048207 B1 WO 1997048207B1 US 9709277 W US9709277 W US 9709277W WO 9748207 B1 WO9748207 B1 WO 9748207B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- encryption
- data set
- information
- host computer
- decryption
- Prior art date
Links
- 230000001413 cellular Effects 0.000 claims 1
- 230000000737 periodic Effects 0.000 claims 1
- 230000001702 transmitter Effects 0.000 claims 1
Abstract
An apparatus and method for dynamic encryption of information including data, voice, and graphics, consisting of a random access memory containing encryption and decryption programs and the information to be encrypted and decrypted, an encryption processor executing the encryption and decryption programs, the encryption and decryption programs being a code set whose members are distinct encryption/decryption codes executed serially by the encryption processor to encrypt and decrypt the information, and also being optionally repetitively executed, and a data set in the random access memory specifying the order and execution and number of repetitions of each member of the code set.
Claims
1. An apparatus for dynamic encryption of information including data, voice, and graphics, comprising:
a random-access memory containing more than one distinct encryption and decryption programs and the information to be encrypted and decrypted,
a first encryption processor executing said encryption and decryption programs,
wherein said encryption and decryption programs further comprise a code set, the members of said code set being executed serially by said first encryption processor, each member partially encrypting the information, each member of said code set being optionally repetitively executed, and
a data set in said random access memory specifying the order of execution of said members of said code set and the number of times each such member is executed, the contents of said data set changing automatically on a periodic basis.
2. The apparatus of claim 1, wherein said data set is randomly generated based on a seed.
3. The apparatus of claim 2, wherein said seed is an identification signature unique to each medium containing said encryption and decryption programs.
4. The apparatus of claim 3 , wherein said seed further comprises the date and time of day at which encryption begins.
5. The apparatus of claim 3 , wherein said apparatus further comprises a counter which counts the number of complete encryptions and said seed further comprises said count of complete encryptions.
6. The apparatus of claim 3 , wherein said seed further comprises the length of the last portion of information encrypted.
7. The apparatus of claim 2, wherein said data set is created by the user.
8. The apparatus of claim 7, further comprising user software executing on a host computer connected to said apparatus by a host computer interface and said user software creating said data set.
9. The apparatus of claim 8, further comprising user interface software adapted to allow the user to specify the contents of said data set to said user software.
10. The apparatus of claim 9, wherein said user interface software allows the user to test the statistical probability of an unauthorized user deciphering said data set.
11. The apparatus of claim 1, further comprising a second encryption processor executing in parallel to said first encryption processor and controlling said first encryption processor.
12. The apparatus of claim 11, wherein said first encryption processor performs batch encryption/decryption and said second encryption processor performs real-time encryption/decryption.
13. The apparatus of claim 1, further comprising a communications port for voice and data.
14. The apparatus of claim 13, wherein said communications port further comprises a telephone line interface and a handset interface.
15. The apparatus of claim 14, further comprising an analog/digital converter connected to said communications port .
16. The apparatus of claim 13, further comprising a host computer interface for connecting said apparatus to a host computer containing the information to be encrypted and decrypted.
17. The apparatus of claim 1, wherein the contents of said data set changes periodically.
18. The apparatus of claim 17, wherein two of said apparatus are connected in a network and cooperate to periodically, automatically change the contents of said data set.
19. The apparatus of claim 18, further comprising a network interface to a local area network. WO 97/48207 _ 3 «| _ PCT/US97/09277
20. The apparatus of claim 19, wherein the network addresses of each of said apparatus are encrypted by one of said two apparatuses .
21. The apparatus of claim 1, further comprising an interface to a cellular telephone.
22. The apparatus of claim 1, further comprising an interface to a car alarm system and a remote car alarm transmitter.
23. The apparatus of claim 16, further comprising a relay switch for enabling and disabling the flow of information between said communications port and said host computer interface, said first encryption processor controlling said relay switch.
24. The apparatus of claim 1, further comprising a mass storage device interface for transferring information between said apparatus and a mass storage device.
25. The apparatus of claim 1, wherein said apparatus resides on a standard expansion card for a personal computer.
26. The apparatus of claim 1, wherein said apparatus resides on the motherboard of a personal computer.
27. The apparatus of claim 1, further comprising a nonvolatile memory containing start-up programs. -32-
28. A method for performing dynamic encryption and decryption of information including data, voice, and graphics, comprising the steps of :
in a first host computer, generating a data set whose contents specify the order of execution and number of repetitions of each member of a code set having multiple members whose members are distinct encryption/decryption codes stored in said host computer,
loading said data set from said first host computer into an encryption apparatus,
parsing said data set in said encryption apparatus, loading each member of said code set into said encryption apparatus,
loading the information to be encrypted into said encryption apparatus,
executing each member of said code set in said encryption apparatus in the order of execution and number of repetitions indicated by said data set each member partially encrypting the information,
notifying the first host computer at the completion of encryption of the information,
moving the encrypted information from said encryption apparatus to the first host computer,
transmitting the contents of said data set and the members of said code set to a second host computer,
transmitting the encrypted information to a second encryption apparatus connected to said first encryption apparatus over a network, and said second encryption apparatus parsing said data set, loading the members of said code set from said second host computer, executing -33-
the members of said code set to decrypt the information, notifying said second host computer at the completion of decryption of the information, and transferring the decrypted information to said second host computer,
changing the contents of said data set automatically and periodically at said first encryption apparatus and communicating the changed contents of said data set to said second encryption apparatus.
29. The method of claim 28, wherein said data set generation step is performed without user intervention.
30. The method of claim 28, wherein said data set generation step is controlled by the user.
3*1. The method of claim 28, comprising the further step of encrypting the network address of said second encryption apparatus at said first encryption apparatus, and decrypting the network address of said second encryption apparatus at said second encryption apparatus.
32. A method for performing dynamic encryption of information including data, voice, and graphics at a first location and dynamic decryption of the information at a second location, comprising the steps of:
at the first location: generating a data set whose contents specify the order of execution and number of repetitions of each member of a code set having multiple members, said members being distinct encryption/decryption codes,
transmitting said data set and said code set to the second location,
parsing said data set, executing each member of said code set in the order of execution and number of repetitions indicated by said data set, each member encrypting the information,
transmitting the encrypted information to the second location, and
at the second location: receiving said data set and said code set from the first location,
parsing said data set, and executing each member of said code set in the order of execution and number of repetitions indicated by said data set to decrypt the information,
wherein the contents of said data set is automatically and periodically changed and the changed contents are transmitted from the first location to the second location. 3 > . The method of claim 35, wherein said data set is randomly generated.
3 - The method of claim 35, wherein said data set is generated by a user.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97928726A EP0900492B1 (en) | 1996-06-14 | 1997-05-30 | Device and method for dynamic encryption |
| DE69736744T DE69736744D1 (en) | 1996-06-14 | 1997-05-30 | Device and method for dynamic encryption |
| AU32910/97A AU3291097A (en) | 1996-06-14 | 1997-05-30 | Device and method for dynamic encryption |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/662,241 US5742686A (en) | 1996-06-14 | 1996-06-14 | Device and method for dynamic encryption |
| US08/662,241 | 1996-06-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1997048207A1 WO1997048207A1 (en) | 1997-12-18 |
| WO1997048207B1 true WO1997048207B1 (en) | 1998-01-29 |
Family
ID=24656957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1997/009277 WO1997048207A1 (en) | 1996-06-14 | 1997-05-30 | Device and method for dynamic encryption |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5742686A (en) |
| EP (1) | EP0900492B1 (en) |
| AT (1) | ATE341134T1 (en) |
| AU (1) | AU3291097A (en) |
| DE (1) | DE69736744D1 (en) |
| WO (1) | WO1997048207A1 (en) |
Families Citing this family (51)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6094486A (en) * | 1997-06-19 | 2000-07-25 | Marchant; Brian E. | Security apparatus for data transmission with dynamic random encryption |
| US6240183B1 (en) * | 1997-06-19 | 2001-05-29 | Brian E. Marchant | Security apparatus for data transmission with dynamic random encryption |
| US6591291B1 (en) * | 1997-08-28 | 2003-07-08 | Lucent Technologies Inc. | System and method for providing anonymous remailing and filtering of electronic mail |
| US6044257A (en) * | 1998-03-19 | 2000-03-28 | American Secure Care, Llc | Panic button phone |
| US7092695B1 (en) * | 1998-03-19 | 2006-08-15 | Securealert, Inc. | Emergency phone with alternate number calling capability |
| JP3994518B2 (en) * | 1998-05-11 | 2007-10-24 | ソニー株式会社 | Data distribution device and terminal device for data distribution |
| US6845159B1 (en) | 1998-10-07 | 2005-01-18 | Protego Information Ab | Processing method and apparatus for converting information from a first format into a second format |
| SE512864C2 (en) * | 1998-10-07 | 2000-05-29 | Lateca Computer Inc Nv | Processing method and apparatus for converting information from a first format to a second format |
| US6285867B1 (en) | 1998-10-16 | 2001-09-04 | American Secure Care, Llc | Combination emergency phone and personal audio device |
| US6708272B1 (en) | 1999-05-20 | 2004-03-16 | Storage Technology Corporation | Information encryption system and method |
| US6856687B2 (en) * | 1999-06-21 | 2005-02-15 | Copytele, Inc. | Portable telecommunication security device |
| TW546935B (en) * | 1999-08-30 | 2003-08-11 | Nagracard Sa | Multi-module encryption method |
| US20020184485A1 (en) * | 1999-12-20 | 2002-12-05 | Dray James F. | Method for electronic communication providing self-encrypting and self-verification capabilities |
| WO2001046880A1 (en) * | 1999-12-21 | 2001-06-28 | Sony Corporation | Electronic money system |
| US7054443B1 (en) * | 2000-03-27 | 2006-05-30 | Microsoft Corporation | System and method for protecting digital goods using random and automatic code obfuscation |
| US7080257B1 (en) | 2000-03-27 | 2006-07-18 | Microsoft Corporation | Protecting digital goods using oblivious checking |
| US7023997B1 (en) * | 2000-12-21 | 2006-04-04 | Cisco Technology, Inc. | Secure messaging communication system |
| US7305697B2 (en) | 2001-02-02 | 2007-12-04 | Opentv, Inc. | Service gateway for interactive television |
| US7155011B2 (en) * | 2001-03-13 | 2006-12-26 | Victor Company Of Japan, Limited | Encryption method, decryption method, and recording and reproducing apparatus |
| US7194528B1 (en) * | 2001-05-18 | 2007-03-20 | Current Grid, Llc | Method and apparatus for processing inbound data within a powerline based communication system |
| US7173938B1 (en) | 2001-05-18 | 2007-02-06 | Current Grid, Llc | Method and apparatus for processing outbound data within a powerline based communication system |
| AU2002324861A1 (en) * | 2001-09-05 | 2003-03-18 | Eli Abir | Method and apparatus for dynamic client-side load balancing system |
| JP2003134106A (en) * | 2001-10-22 | 2003-05-09 | Victor Co Of Japan Ltd | Encryption method, decoding method and apparatus, and information recording medium |
| US7181010B2 (en) | 2002-05-24 | 2007-02-20 | Scientific-Atlanta, Inc. | Apparatus for entitling remote client devices |
| US7861082B2 (en) * | 2002-05-24 | 2010-12-28 | Pinder Howard G | Validating client-receivers |
| US6748080B2 (en) * | 2002-05-24 | 2004-06-08 | Scientific-Atlanta, Inc. | Apparatus for entitling remote client devices |
| JP2004070499A (en) * | 2002-08-02 | 2004-03-04 | Fujitsu Ltd | Memory device, and enciphering/decoding method |
| US20050240418A1 (en) * | 2002-10-11 | 2005-10-27 | Pierre Chappuis | Identification of a user of a mobile terminal and generation of an action authorisation |
| US20040083373A1 (en) * | 2002-10-28 | 2004-04-29 | Perkins Gregory M. | Automatically generated cryptographic functions for renewable tamper resistant security systems |
| US7162647B2 (en) * | 2004-03-11 | 2007-01-09 | Hitachi, Ltd. | Method and apparatus for cryptographic conversion in a data storage system |
| US7330122B2 (en) | 2005-08-10 | 2008-02-12 | Remotemdx, Inc. | Remote tracking and communication device |
| US7757302B2 (en) * | 2006-03-23 | 2010-07-13 | Paul Rosebrock | Computer security switch |
| US8208796B2 (en) * | 2006-04-17 | 2012-06-26 | Prus Bohdan S | Systems and methods for prioritizing the storage location of media data |
| US9277295B2 (en) * | 2006-06-16 | 2016-03-01 | Cisco Technology, Inc. | Securing media content using interchangeable encryption key |
| US20080022304A1 (en) * | 2006-06-30 | 2008-01-24 | Scientific-Atlanta, Inc. | Digital Media Device Having Selectable Media Content Storage Locations |
| US7978720B2 (en) * | 2006-06-30 | 2011-07-12 | Russ Samuel H | Digital media device having media content transfer capability |
| US9137480B2 (en) * | 2006-06-30 | 2015-09-15 | Cisco Technology, Inc. | Secure escrow and recovery of media device content keys |
| US8797210B2 (en) | 2006-07-14 | 2014-08-05 | Securealert, Inc. | Remote tracking device and a system and method for two-way voice communication between the device and a monitoring center |
| US7737841B2 (en) | 2006-07-14 | 2010-06-15 | Remotemdx | Alarm and alarm management system for remote tracking devices |
| US7936262B2 (en) | 2006-07-14 | 2011-05-03 | Securealert, Inc. | Remote tracking system with a dedicated monitoring center |
| FR2912020B1 (en) * | 2007-01-26 | 2009-03-06 | Thales Sa | METHOD FOR SECURING THE TRANSMISSION OF INFORMATION. |
| WO2009001020A1 (en) * | 2007-06-26 | 2008-12-31 | G3-Vision Limited | Authentication system and method |
| MX2010009680A (en) | 2008-03-07 | 2011-02-23 | Securealert Inc | A system and method for monitoring individuals using a beacon and intelligent remote tracking device. |
| US8745410B2 (en) * | 2009-03-18 | 2014-06-03 | Atmel Corporation | Method and apparatus to scramble data stored in memories accessed by microprocessors |
| US8514070B2 (en) | 2010-04-07 | 2013-08-20 | Securealert, Inc. | Tracking device incorporating enhanced security mounting strap |
| US8862897B2 (en) | 2011-10-01 | 2014-10-14 | Oracle International Corporation | Increasing data security in enterprise applications by using formatting, checksums, and encryption to detect tampering of a data buffer |
| KR20140087036A (en) * | 2011-10-28 | 2014-07-08 | 덴마크스 텍니스케 유니버시테트 | dynamic encryption method |
| US8880887B2 (en) | 2012-04-06 | 2014-11-04 | Stt Llc. | Systems, methods, and computer-readable media for secure digital communications and networks |
| WO2015101687A1 (en) * | 2013-12-30 | 2015-07-09 | Pedro Jose Iglesias Rosado | Customisable electronic cryptographic device |
| US9892275B2 (en) * | 2016-03-10 | 2018-02-13 | Sap Se | Data encryption in a multi-tenant cloud environment |
| FR3079638B1 (en) * | 2018-03-29 | 2021-04-09 | Airtag | PROCESS FOR IMPLEMENTING A CRYPTOGRAPHIC FUNCTION FOR A SECRET KEY |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4225935A (en) * | 1977-08-30 | 1980-09-30 | Sperry Corporation | Coding method and system with enhanced security |
| US4819267A (en) * | 1984-02-22 | 1989-04-04 | Thumbscan, Inc. | Solid state key for controlling access to computer systems and to computer software and/or for secure communications |
| USRE35403E (en) * | 1987-01-07 | 1996-12-17 | Miu Industries Ltd. | Encryption printed circuit board |
| US4914697A (en) * | 1988-02-01 | 1990-04-03 | Motorola, Inc. | Cryptographic method and apparatus with electronically redefinable algorithm |
| US5412730A (en) * | 1989-10-06 | 1995-05-02 | Telequip Corporation | Encrypted data transmission system employing means for randomly altering the encryption keys |
| US5091938B1 (en) * | 1990-08-06 | 1997-02-04 | Nippon Denki Home Electronics | Digital data cryptographic system |
| JP3053106B2 (en) * | 1990-11-02 | 2000-06-19 | 株式会社日立製作所 | Encryption processing device and decryption processing device |
| US5199069A (en) * | 1991-02-25 | 1993-03-30 | Motorola, Inc. | Automatic encryption selector |
| US5185796A (en) * | 1991-05-30 | 1993-02-09 | Motorola, Inc. | Encryption synchronization combined with encryption key identification |
| JP2862030B2 (en) * | 1991-06-13 | 1999-02-24 | 三菱電機株式会社 | Encryption method |
| US5365589A (en) * | 1992-02-07 | 1994-11-15 | Gutowitz Howard A | Method and apparatus for encryption, decryption and authentication using dynamical systems |
| US5249227A (en) * | 1992-11-30 | 1993-09-28 | Motorola, Inc. | Method and apparatus of controlling processing devices during power transition |
| US5341426A (en) * | 1992-12-15 | 1994-08-23 | Motorola, Inc. | Cryptographic key management apparatus and method |
| US5533127A (en) * | 1994-03-18 | 1996-07-02 | Canon Information Systems, Inc. | Encryption system |
| US5541996A (en) * | 1994-12-12 | 1996-07-30 | Itt Corporation | Apparatus and method for a pseudo-random number generator for high precision numbers |
-
1996
- 1996-06-14 US US08/662,241 patent/US5742686A/en not_active Expired - Lifetime
-
1997
- 1997-05-30 EP EP97928726A patent/EP0900492B1/en not_active Expired - Lifetime
- 1997-05-30 AT AT97928726T patent/ATE341134T1/en not_active IP Right Cessation
- 1997-05-30 AU AU32910/97A patent/AU3291097A/en not_active Abandoned
- 1997-05-30 DE DE69736744T patent/DE69736744D1/en not_active Expired - Lifetime
- 1997-05-30 WO PCT/US1997/009277 patent/WO1997048207A1/en active IP Right Grant
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1997048207B1 (en) | Device and method for dynamic encryption | |
| EP0900492B1 (en) | Device and method for dynamic encryption | |
| JP3456528B2 (en) | Mobile phone and data concealment method | |
| US7406604B2 (en) | Method for protecting a memory card, and a memory card | |
| CA2314983A1 (en) | System for transmitting subscription information and content to a mobile device | |
| WO2003003772A3 (en) | Method for remote loading of an encryption key in a telecommunication network station | |
| JP5255499B2 (en) | Key information management method, content transmission method, key information management device, license management device, content transmission system, and terminal device | |
| EP1741224A1 (en) | System and method for generating reproducible session keys | |
| CN101595487A (en) | File decryption interface | |
| US7023998B2 (en) | Cryptographic key processing and storage | |
| KR100352783B1 (en) | Software/data transmitting-receiving system | |
| US5278905A (en) | Method and apparatus for processor base encryption | |
| KR100562981B1 (en) | A system for encryption of wireless transmission from personal palm computer to world wide web terminals | |
| JP2000031980A (en) | Radio lan system and enciphering method therefor | |
| CN115567200B (en) | Http interface anti-brushing method, system and related equipment | |
| JP3195288B2 (en) | Cryptographic communication device | |
| CN101019082B (en) | Method and apparatus for delivering keys | |
| US7606363B1 (en) | System and method for context switching of a cryptographic engine | |
| JPH11355858A (en) | Information distribution method in mobile communication network | |
| JP2000305849A (en) | Transmitter and its method, receiver and its method and communication system | |
| CN101692730A (en) | Encrypted interaction mode for SIM card and special public telephone terminal and special public telephone terminal | |
| JPH0777933A (en) | Network data ciphering device | |
| CN100583743C (en) | Distributing method for transmission key | |
| CN100407616C (en) | Method for automatic ally updating network system pins | |
| JP4532843B2 (en) | Information printing apparatus and method |