Signatures for facilitating hot upgrades of modular software...

Details Signatures for facilitating hot upgrades of modular software... Signatures for facilitating hot upgrades of modular software...

2005-04-12

2005-04-12

Wright, Norman M. (Department: 2134)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

Upgrade/install encryption

C713S152000, C713S177000

Reexamination Certificate

active

06880086

ABSTRACT:
The present invention provides a method and apparatus for facilitating hot upgrades of software components within a telecommunications network device through the use of “signatures” generated by a signature generating program. After installation of a new software release within the network device, only those software components whose signatures do not match the signatures of corresponding and currently executing software components are upgraded. Signatures promote hot upgrades by identifying only those software components that need to be upgraded. Since signatures are automatically generated for each software component as part of putting together a new release a quick comparison of two signatures provides an accurate assurance that either the software component has changed or has not. Thus, signatures provide a quick, easy way to accurately determine the upgrade status of each software component.

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