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GB2349250A - Method for protecting bytecode - Google Patents

Method for protecting bytecode

Info

Publication number
GB2349250A
GB2349250A GB0009367A GB0009367A GB2349250A GB 2349250 A GB2349250 A GB 2349250A GB 0009367 A GB0009367 A GB 0009367A GB 0009367 A GB0009367 A GB 0009367A GB 2349250 A GB2349250 A GB 2349250A
Authority
GB
United Kingdom
Prior art keywords
bytecode
protecting
encrypted
executing
run
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.)
Withdrawn
Application number
GB0009367A
Other versions
GB0009367D0 (en
Inventor
Kuo Chiang Chiang
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.)
NAT COMPUTER BOARD
Original Assignee
NAT COMPUTER BOARD
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
Application filed by NAT COMPUTER BOARD filed Critical NAT COMPUTER BOARD
Publication of GB0009367D0 publication Critical patent/GB0009367D0/en
Publication of GB2349250A publication Critical patent/GB2349250A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/12—Protecting executable software
    • G06F21/121—Restricting unauthorised execution of programs
    • G06F21/125—Restricting unauthorised execution of programs by manipulating the program code, e.g. source code, compiled code, interpreted code, machine code
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Technology Law (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)

Abstract

A method, software tool and system for protecting bytecode, which involves encrypting bytecode for an application, providing the encrypted bytecode to a user, executing a code loader to load the encrypted bytecode, access a decryption key, decrypt the encrypted bytecode, and pass the decrypted bytecode to a run-time system, and executing the decrypted bytecode with the run-time system.
GB0009367A 1998-02-13 1998-02-13 Method for protecting bytecode Withdrawn GB2349250A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG1998/000010 WO1999041651A2 (en) 1998-02-13 1998-02-13 Method for protecting bytecode

Publications (2)

Publication Number Publication Date
GB0009367D0 GB0009367D0 (en) 2000-05-31
GB2349250A true GB2349250A (en) 2000-10-25

Family

ID=20429836

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0009367A Withdrawn GB2349250A (en) 1998-02-13 1998-02-13 Method for protecting bytecode

Country Status (3)

Country Link
AU (1) AU6645398A (en)
GB (1) GB2349250A (en)
WO (1) WO1999041651A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2385951A (en) * 2001-09-21 2003-09-03 Sun Microsystems Inc Data encryption and decryption

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2343022B (en) * 1998-10-19 2003-01-08 Ibm Encrypting of java methods
US6681212B1 (en) 1999-04-23 2004-01-20 Nianning Zeng Internet-based automated system and a method for software copyright protection and sales
GB0024918D0 (en) * 2000-10-11 2000-11-22 Sealedmedia Ltd Method of providing java tamperproofing
DE10105053A1 (en) * 2001-02-05 2002-08-29 Hmd Software Ag Method and device for transmitting program codes on the Internet
GB0310142D0 (en) * 2003-05-02 2003-06-04 Bitarts Ltd Delivering a software component
DE102004061634A1 (en) * 2004-12-17 2006-06-29 Siemens Ag Method and apparatus for encrypting and executing a software library
CN101957903A (en) * 2010-09-13 2011-01-26 中兴通讯股份有限公司 Method and device for protecting class files
EP3188063A1 (en) * 2015-12-29 2017-07-05 GuardSquare NV A build system
CN111131281B (en) * 2019-12-30 2022-09-02 北京永新视博数字电视技术有限公司 Message transmission method, device and system and protection code updating method and device thereof
US11550883B2 (en) 2020-09-08 2023-01-10 Assured Information Security, Inc. Code protection

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562305A (en) * 1982-12-22 1985-12-31 International Business Machines Corporation Software cryptographic apparatus and method
GB8302096D0 (en) * 1983-01-26 1983-03-02 Int Computers Ltd Software protection in computer systems
US4740890A (en) * 1983-12-22 1988-04-26 Software Concepts, Inc. Software protection system with trial period usage code and unlimited use unlocking code both recorded on program storage media
US4932054A (en) * 1988-09-16 1990-06-05 Chou Wayne W Method and apparatus for protecting computer software utilizing coded filter network in conjunction with an active coded hardware device
US5259029A (en) * 1990-05-16 1993-11-02 Duncan Jr F Jeff Decoding device for computer software protection
EP0515739A1 (en) * 1991-05-31 1992-12-02 International Business Machines Corporation Program code generator
US5301231A (en) * 1992-02-12 1994-04-05 International Business Machines Corporation User defined function facility
JP2576385B2 (en) * 1993-10-28 1997-01-29 日本電気株式会社 Data protection device
US5522073A (en) * 1993-11-22 1996-05-28 Hewlett-Packard Company Method and apparatus for automating and controlling execution of software tools and tool sets via when/then relationships
US5604803A (en) * 1994-06-03 1997-02-18 Sun Microsystems, Inc. Method and apparatus for secure remote authentication in a public network
US5740469A (en) * 1995-04-24 1998-04-14 Motorola Inc. Apparatus for dynamically reading/writing multiple object file formats through use of object code readers/writers interfacing with generalized object file format interface and applications programmers' interface

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Not yet advised *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2385951A (en) * 2001-09-21 2003-09-03 Sun Microsystems Inc Data encryption and decryption
US7171566B2 (en) 2001-09-21 2007-01-30 Sun Microsystems, Inc. Data encryption and decryption

Also Published As

Publication number Publication date
WO1999041651A2 (en) 1999-08-19
AU6645398A (en) 1999-08-30
WO1999041651A3 (en) 2002-06-20
GB0009367D0 (en) 2000-05-31

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Legal Events

Date Code Title Description
710B Request of alter time limits

Free format text: IN RESPECT OF PCT APPLICATION PCT/SG98/00010 - (PATENT APPLICATION NUMBER GB0009367.4), WHICH SHOULD HAVE ENTERED THE UK NATIONAL PHASE ON 13 OCTOBER 1999 THE PATENT OFFICE RECEIVED ON 14 APRIL 2000 A REQUEST UNDER RULE 110 (4) OF THE PATENT RULES 1995 TO EXTEND THE PERIOD PRESCRIBED IN RULE 85 (1).

710B Request of alter time limits

Free format text: METHOD FOR PROTECTING BYTECODE. APPLICATION FOR EXTENSION OF THE PERIOD (S) PRESCRIBED BY RULE (S) 85 (1) FILED ON 14 APRIL 2000.

710B Request of alter time limits

Free format text: "IN RESPECT OF PCT APPLICATION NUMBER PCT/SG98/00010 (PATENT APPLICATION NUMBER GB200009367.4) DISCRETION HAS BEEN EXERCISED UNDER RULE 110(4) OF THE PATENT RULES 1995 TO EXTEND THE PERIOD PRESCRIBED BY RULE 85(1). THE APPLICATION IS PROCEEDING SUBJECT TO THE ATTACHMENT OF TERMS TO PROTECT THIRD PARTIES."

710B Request of alter time limits

Free format text: EXTENSION ALLOWED: METHOD FOR PROTECTING BYTECODE. PERIOD(S) PRESCRIBED BY RULE(S) 85(1) EXTENDED UNDER RULE 110(6) IN ACCORDANCE WITH THE DECISION OF THE COMPTROLLER DATED 28 JUN 2000. THE PATENT/APPLICATION IS REINSTATED SUBJECT TO SPECIAL TERMS FOR THIRD PARTY INTERESTS.

WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)