arm-trusted-firmware

History

Sandrine Bailleux 495599cd0a TBBR: Reduce size of ECDSA key buffers The TBBR implementation extracts public keys from certificates and stores them in static buffers. DER-encoded ECDSA keys are only 91 bytes each but were each allocated 294 bytes instead. Reducing the size of these buffers saves 609 bytes of BSS in BL2 (294 - 91 = 203 bytes for each of the 3 key buffers in use). Also add a comment claryfing that key buffers are tailored on RSA key sizes when both ECDSA and RSA keys are used. Change-Id: Iad332856e7af1f9814418d012fba3e1e9399f72a Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>	2020-02-18 09:46:55 +01:00
..
tbbr_cot.c	TBBR: Reduce size of ECDSA key buffers	2020-02-18 09:46:55 +01:00

Sandrine Bailleux 495599cd0a TBBR: Reduce size of ECDSA key buffers

The TBBR implementation extracts public keys from certificates and
stores them in static buffers. DER-encoded ECDSA keys are only 91 bytes
each but were each allocated 294 bytes instead. Reducing the size of
these buffers saves 609 bytes of BSS in BL2 (294 - 91 = 203 bytes for
each of the 3 key buffers in use).

Also add a comment claryfing that key buffers are tailored on RSA key
sizes when both ECDSA and RSA keys are used.

Change-Id: Iad332856e7af1f9814418d012fba3e1e9399f72a
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>

2020-02-18 09:46:55 +01:00

tbbr_cot.c

TBBR: Reduce size of ECDSA key buffers

2020-02-18 09:46:55 +01:00