dongles, smart cards, cryptographic processors, global positioning systems devicesįIG. G06F21/123- Restricting unauthorised execution of programs by using dedicated hardware, e.g.G06F21/121- Restricting unauthorised execution of programs.G06F21/12- Protecting executable software.vending or licensing of copyrighted material G06F21/10- Protecting distributed programs or content, e.g.G06F21/00- Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity.G06- COMPUTING CALCULATING OR COUNTING.Status Active - Reinstated legal-status Critical Current Adjusted expiration legal-status Critical Links Assignors: INTERNATIONAL BUSINESS MACHINES CORPORATION Assigned to JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT reassignment JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT PATENT SECURITY AGREEMENT Assignors: DROPBOX, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CRAFT, DAVID Priority to US10/464,897 priority Critical patent/US7475254B2/en Priority to TW093115948A priority patent/TWI315628B/en Publication of US20050010788A1 publication Critical patent/US20050010788A1/en Priority to US11/681,254 priority patent/US7764787B2/en Priority to US12/324,127 priority patent/US7770021B2/en Publication of US7475254B2 publication Critical patent/US7475254B2/en Application granted granted Critical Assigned to JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT reassignment JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). 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 International Business Machines Corp filed Critical International Business Machines Corp Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION reassignment INTERNATIONAL BUSINESS MACHINES CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Original Assignee International Business Machines Corp 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 or warranty as to the accuracy of the list.) ( en Inventor David Craft Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active - Reinstated, expires Application number US10/464,897 Other versions US20050010788A1 Google Patents Method for authenticating software using protected master keyĭownload PDF Info Publication number US7475254B2 US7475254B2 US10/464,897 US46489703A US7475254B2 US 7475254 B2 US7475254 B2 US 7475254B2 US 46489703 A US46489703 A US 46489703A US 7475254 B2 US7475254 B2 US 7475254B2 Authority US United States Prior art keywords software value master key loader code Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US7475254B2 - Method for authenticating software using protected master key US7475254B2 - Method for authenticating software using protected master key
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