Syntax
userkeys = <filename>
File Format
user_key0 <userkey0 value>
user_key1 <userkey1 value>
user_key2 <userkey2 value>
user_key3 <userkey3 value>
user_key4 <userkey4 value>
user_key5 <userkey5 value>
user_key6 <userkey6 value>
user_key7 <userkey7 value>
Description
The path to the user keyfile. The keyfile contains user keys used to encrypt the partitions. The size of user key can be 128 or 256 bits. You can use the 128-bit key only for runtime loaded partitions.
Note: SSI technology devices do not support
userkeys.
Example
In the following example, FPD partition uses the key source as
user_key2, so the .nky file for this
partition must have the user_key2 from the
userkeys file as the key0. This
key0 from the .nky file is then used by
Bootgen for encryption. The PLM uses the user_key2 programmed by
pmc_data during decryption.
new_bif:
{
userkeys = userkeyfile.txt
id_code = 0x14ca8093
extended_id_code = 0x01
id = 0x2
image
{
name = pmc_subsys
id = 0x1c000001
partition
{
id = 0x01
type = bootloader
encryption = aes
keysrc=bbram_red_key
aeskeyfile = inputs/keys/enc/bbram_red_key.nky
dpacm_enable
file = gen_files/plm.elf
}
partition
{
id = 0x09
type = pmcdata, load = 0xf2000000
file = gen_files/pmc_data.cdo
}
}
image
{
name = lpd
id = 0x4210002
partition
{
id = 0x0C
type = cdo
file = gen_files/lpd_data.cdo
}
partition
{
id = 0x0B
core = psm
file = static_files/psm_fw.elf
}
}
image
{
name = pl_cfi
id = 0x18700000
partition
{
id = 0x03
type = cdo
file = design_1_wrapper.rcdo
}
partition
{
id = 0x05
type = cdo
file = design_1_wrapper.rnpi
}
}
image
{
name = fpd
id = 0x420c003
partition
{
id = 0x08
type = cdo
file = gen_files/fpd_data.cdo
encryption = aes
keysrc=user_key2
aeskeyfile = userkey2.nky
}
}
image
{
name = ss_apu
id = 0x1c000000
partition
{
id = 0x61
core = a72-0
file = ./wrk_a72_r5/perip_a72/Debug/perip_a72.elf
}
}
}