This serie adds the support of ecdsa with software
using mbedtls. So boards without ecdsa hardware may
also use signature with ecdsa.
To add the support of ecdsa with mbedtls, I have:
- enabled ecdsa in mbedtls
- add a function sw_ecdsa_verify that uses mbedtls
- add a driver sw_ecdsa that call sw_ecdsa_verify
I have tested this code with sandbox, and I have
followed those steps:
0) build u-boot using sandbox_defconfig and adding those options:
CONFIG_ECDSA_SW=y
CONFIG_ECDSA_MBEDTLS=y
CONFIG_ECDSA=y
CONFIG_ECDSA_VERIFY=y
1) add a signature node to an its file
signature-256 {
algo = "sha256,ecdsa256";
key-name-hint = "private-key-256";
};
2) generate an ecdsa key
openssl ecparam -name prime256v1 -genkey -noout -out private-key-256.pem
3) create the itb file
./tools/mkimage -f <file.its> -k . -K arch/sandbox/dts/test.dtb <file.itb>
4) launch sandbox u-boot
./u-boot -d arch/sandbox/dts/test.dtb
5) on sandbox u-boot prompt, load the itb and launch bootm on it
=> host load hostfs - 1000000 uboot-ecdsa.itb
4628674 bytes read in 1 ms (4.3 GiB/s)
=> bootm 1000000
...
...
Verifying Hash Integrity ... sha256,ecdsa256:private-key-256+ OK
I have tested with success ecdsa256 and ecdsa384,
but there is an issue with secp521r1.
Changes in v2:
- move ECDSA_MBEDTLS to MBEDTLS_LIB_X509
- rename lib/mbedtls/sw_ecdsa.c to lib/mbedtls/ecdsa.c
- enhance dependancies for ECDSA_MBEDTLS
- fix support of ecdsa521/secp521r1
- add vboot test using ecdsa
Philippe Reynes (9):
mbedtls: enable support of ecc
ecdsa: initial support of ecdsa using mbedtls
test: lib: sw_ecdsa: add initial test
drivers: crypto: add software ecdsa support
ecdsa: fix support of secp521r1
test: dm: ecdsa.c: clean this test as software ecdsa is now
implemented
configs: sandbox: enable the software ecdsa driver
test: py: vboot: prepare integration test for ecdsa
test: vboot: add test for ecdsa
configs/amd_versal2_virt_defconfig | 1 +
configs/qemu_arm64_lwip_defconfig | 1 +
configs/sandbox_defconfig | 1 +
configs/starfive_visionfive2_defconfig | 1 +
configs/xilinx_versal_net_virt_defconfig | 1 +
configs/xilinx_versal_virt_defconfig | 1 +
configs/xilinx_zynqmp_kria_defconfig | 1 +
configs/xilinx_zynqmp_virt_defconfig | 1 +
drivers/crypto/Kconfig | 2 +
drivers/crypto/Makefile | 1 +
drivers/crypto/ecdsa/Kconfig | 6 +
drivers/crypto/ecdsa/Makefile | 6 +
drivers/crypto/ecdsa/ecdsa-sw.c | 33 ++
include/crypto/internal/sw_ecdsa.h | 14 +
lib/ecdsa/ecdsa-libcrypto.c | 21 +-
lib/ecdsa/ecdsa-verify.c | 24 +-
lib/fdt-libcrypto.c | 2 +-
lib/mbedtls/Kconfig | 16 +
lib/mbedtls/Makefile | 19 +-
lib/mbedtls/ecdsa.c | 94 ++++
lib/mbedtls/mbedtls_def_config.h | 18 +
test/dm/ecdsa.c | 18 +-
test/lib/Makefile | 1 +
test/lib/sw_ecdsa.c | 465 ++++++++++++++++++
test/py/tests/test_fit_ecdsa.py | 2 +-
test/py/tests/test_vboot.py | 128 +++--
....its => sign-configs-sha1-rsa2048-pss.its} | 0
...sha1.its => sign-configs-sha1-rsa2048.its} | 0
.../vboot/sign-configs-sha256-ecdsa256.its | 45 ++
.../vboot/sign-configs-sha256-ecdsa384.its | 45 ++
.../vboot/sign-configs-sha256-ecdsa521.its | 45 ++
... sign-configs-sha256-rsa2048-pss-prod.its} | 0
...ts => sign-configs-sha256-rsa2048-pss.its} | 0
...56.its => sign-configs-sha256-rsa2048.its} | 0
...84.its => sign-configs-sha384-rsa3072.its} | 0
...s.its => sign-images-sha1-rsa2048-pss.its} | 0
...-sha1.its => sign-images-sha1-rsa2048.its} | 0
.../vboot/sign-images-sha256-ecdsa256.its | 42 ++
.../vboot/sign-images-sha256-ecdsa384.its | 42 ++
.../vboot/sign-images-sha256-ecdsa521.its | 42 ++
...its => sign-images-sha256-rsa2048-pss.its} | 0
...256.its => sign-images-sha256-rsa2048.its} | 0
...384.its => sign-images-sha384-rsa3072.its} | 0
tools/image-sig-host.c | 2 +-
44 files changed, 1062 insertions(+), 79 deletions(-)
create mode 100644 drivers/crypto/ecdsa/Kconfig
create mode 100644 drivers/crypto/ecdsa/Makefile
create mode 100644 drivers/crypto/ecdsa/ecdsa-sw.c
create mode 100644 include/crypto/internal/sw_ecdsa.h
create mode 100644 lib/mbedtls/ecdsa.c
create mode 100644 test/lib/sw_ecdsa.c
rename test/py/tests/vboot/{sign-configs-sha1-pss.its =>
sign-configs-sha1-rsa2048-pss.its} (100%)
rename test/py/tests/vboot/{sign-configs-sha1.its =>
sign-configs-sha1-rsa2048.its} (100%)
create mode 100644 test/py/tests/vboot/sign-configs-sha256-ecdsa256.its
create mode 100644 test/py/tests/vboot/sign-configs-sha256-ecdsa384.its
create mode 100644 test/py/tests/vboot/sign-configs-sha256-ecdsa521.its
rename test/py/tests/vboot/{sign-configs-sha256-pss-prod.its =>
sign-configs-sha256-rsa2048-pss-prod.its} (100%)
rename test/py/tests/vboot/{sign-configs-sha256-pss.its =>
sign-configs-sha256-rsa2048-pss.its} (100%)
rename test/py/tests/vboot/{sign-configs-sha256.its =>
sign-configs-sha256-rsa2048.its} (100%)
rename test/py/tests/vboot/{sign-configs-sha384.its =>
sign-configs-sha384-rsa3072.its} (100%)
rename test/py/tests/vboot/{sign-images-sha1-pss.its =>
sign-images-sha1-rsa2048-pss.its} (100%)
rename test/py/tests/vboot/{sign-images-sha1.its =>
sign-images-sha1-rsa2048.its} (100%)
create mode 100644 test/py/tests/vboot/sign-images-sha256-ecdsa256.its
create mode 100644 test/py/tests/vboot/sign-images-sha256-ecdsa384.its
create mode 100644 test/py/tests/vboot/sign-images-sha256-ecdsa521.its
rename test/py/tests/vboot/{sign-images-sha256-pss.its =>
sign-images-sha256-rsa2048-pss.its} (100%)
rename test/py/tests/vboot/{sign-images-sha256.its =>
sign-images-sha256-rsa2048.its} (100%)
rename test/py/tests/vboot/{sign-images-sha384.its =>
sign-images-sha384-rsa3072.its} (100%)
--
2.43.0
