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The UCD doesn't have any hardware support for encryption. Presumably you could implement various encryption algorithms in the UCD, but we haven't done so at TI that I know of.
There is a capability to protect the installed object code. The secret is to not enable the JTAG, and to disable the memory debugger support for flash, and probably for RAM as well, just in case the code is hackable that way. Also, instead of offering a command for checksum clear to return to ROM Mode, use a flash erase in production code. At reset, the JTAG is disabled by remapping a JTAG pin using the IOMUX.
