1. A method, comprising: entering a secure mode by a processor, whereby only said processor may initiate a transfer of information into or out of said processor, but no external device may initiate a transfer of information into said processor and no external device may initiate a transfer of information out of said processor; sending a DMA (direct memory access) command including at least one authorization code from said processor to at least one trusted data storage region external to said processor wherein said authorization code is stored in a secure ROM that is unlocked only when said processor is in said secure mode and said DMA command specifies a physical memory address not subject to alteration by a memory address offset or by memory address translation; evaluating said authorization code; and enabling said processor to access at least one trusted data storage location within said at least one trusted data storage region if said authorization code is valid.