AM263P4: OTFA

Part Number: AM263P4

Hi,

In AM263P4, OTFA, what is the difference between Enckey and Authkey?

Steps enable security in XIP image,

1. Enter the OTFA configuration settings in JSON format as shown in the example json file below:
   {

   "mac_size": 4,

   "regions": [

   {

   "start": "0x60000000",

   "size": "0x1000000",

   "authKeyID" : 1,

   "authKey": Absolute path to key For example: "/home/user/ti/mcu_plus_sdk/source/security/security_common/tools/boot/signing/mcu_custMek.key",

   "encKeyID" : 1,

   "encKey": Absolute path to key For example: "/home/user/ti/mcu_plus_sdk/source/security/security_common/tools/boot/signing/mcu_custMek.key",

   "kdSalt" : Absolute path to salt For example: "/home/user/ti/mcu_plus_sdk/source/security/security_common/tools/boot/signing/kd_salt.txt",

   "keyFetchMode" : 1,

   "cryptoMode":"gcm",

   "eccEnable": false

   }

   ]

   }

    

Regards,

Geetha