c6ba9b4547
Following build flags have been added to support optional firmware
encryption:
- FW_ENC_STATUS: Top level firmware's encryption numeric flag, values:
0: Encryption is done with Secret Symmetric Key (SSK) which is
common for a class of devices.
1: Encryption is done with Binding Secret Symmetric Key (BSSK) which
is unique per device.
- ENC_KEY: A 32-byte (256-bit) symmetric key in hex string format. It
could be SSK or BSSK depending on FW_ENC_STATUS flag.
- ENC_NONCE: A 12-byte (96-bit) encryption nonce or Initialization Vector
(IV) in hex string format.
- ENCRYPT_BL31: Binary flag to enable encryption of BL31 firmware.
- ENCRYPT_BL32: Binary flag to enable encryption of Secure BL32 payload.
Similar flags can be added to encrypt other firmwares as well depending
on use-cases.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Change-Id: I94374d6830ad5908df557f63823e58383d8ad670
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| .. | ||
| tbbr | ||
| armv7-a-cpus.mk | ||
| build_env.mk | ||
| build_macros.mk | ||
| cygwin.mk | ||
| defaults.mk | ||
| msys.mk | ||
| plat_helpers.mk | ||
| unix.mk | ||
| windows.mk | ||