Methods and apparatus for protecting domains of a device from unauthorized accesses
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United States of America Patent
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Aug 25, 2020
Grant Date -
Feb 15, 2018
app pub date -
Jul 26, 2017
filing date -
Aug 15, 2016
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Abstract
A machine implemented method for protecting a target domain and a source domain from unauthorized accesses. The method comprising: identifying an exit call gateway comprising an exit transition instruction and at least one exit access parameter, said exit access parameters restricting exit from said source domain; identifying an entry call gateway corresponding to said exit call gateway, said entry call gateway comprising a transition instruction and at least one entry access parameter, said entry access parameters restricting access to said target domain; determining that said exit access parameters and said entry access parameters are compatible with each other; and performing a context switch from said source domain to said target domain, when said exit access parameters and said entry access parameters are complied with.
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