diff options
| author | Jerome Forissier <jerome.forissier@linaro.org> | 2018-03-27 00:16:38 +0800 |
|---|---|---|
| committer | Jérôme Forissier <jerome.forissier@linaro.org> | 2018-04-03 18:25:00 +0200 |
| commit | 409d2ff0a248904b871dd7345ef3f8fdd55ad119 (patch) | |
| tree | 763019020c191166d401f93cf60db865d6a33c30 /mk | |
| parent | e3458e03c8bb1a97a55912b3efc31cf3371ef830 (diff) | |
core: crypto: ltc: introduce CFG_CORE_BIGNUM_MAX_BITS
Make the size of big numbers in the TEE core configurable. The default
(4096 bits) may be reduced if such a large key size is not needed, to
save core memory.
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'mk')
| -rw-r--r-- | mk/config.mk | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mk/config.mk b/mk/config.mk index 29b29e78..045a64a2 100644 --- a/mk/config.mk +++ b/mk/config.mk @@ -310,3 +310,10 @@ CFG_CORE_LARGE_PHYS_ADDR ?= n # manipulated through the Cryptographic API. # Set this to a lower value to reduce the TA memory footprint. CFG_TA_BIGNUM_MAX_BITS ?= 2048 + +# Define the maximum size, in bits, for big numbers in the TEE core (privileged +# layer). +# This value is an upper limit for the key size in any cryptographic algorithm +# implemented by the TEE core. +# Set this to a lower value to reduce the memory footprint. +CFG_CORE_BIGNUM_MAX_BITS ?= 4096 |