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Nt1310 Unit 5.1 Research

Satisfactory Essays

5.1 Procedures for the Patch The procedure for DELTA++ patch is followed: 1) Decompress the APK packages of old version and the new one of an application. 2) The manifest files of both are traversed to obtain names, SHA-1 hash digests and paths of each file of both APK packages. 3) The files of new version are denoted as NEW (if the file is present only in the new version, not in the old version), UPDATED (if file is in both versions but SHA-1 sums are different), SAME (if both versions contain the file but deleted in the new version) or DELETED (if old version contains the file but deleted in the new one). 4) Copy the latest version files marked as NEW into the constructed patch. 5) The latest version files marked as UPDATED are the input

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