2.2 Write Root Certificate Hash

When Secure SAM-BA Cipher 3.5 root-cert-hash command is executed, more than one output file is generated for some devices.

As an example, for the SAMA5D2 family, two output files are created: cert-hash_sama5d2x.cip and cert-hash_sama5d2x_nk.cip.

Then, after both files are copied into the same directory, the SAM-BA tool write_rsa_hash unique command line must be executed.

An example for SAMA5D2 follows:

sam-ba –p secure –d sama5d2 –m write_rsa_hash:cert-hash_sama5d2x.cip

As for the write-customer-key command, SAM-BA tool seamlessly probes the ROM code version of the target device to select the proper input file, either cert-hash_sama5d2x.cip and cert-hash_sama5d2x_nk.cip.