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| /optee_os/core/lib/libtomcrypt/ |
| H A D | sm2-pke.c | f9a78287dd1217877e079f0c3cc83f6181a51dc7 Tue Dec 17 08:19:56 UTC 2019 Jerome Forissier <jerome@forissier.org> core: ltc: add support for SM2 PKE
SM2 is a set of public key cryptographic algorithms based on elliptic
curves published by the Chinese Commercial Cryptography Administration
Office [1]. The standard has three main parts which define:
- A Digital Signature Algorithm (part 2)
- A Key Exchange Protocol (part 3)
- A Public Key Encryption method (part 4)
This commit implements the PKE LibTomcrypt for use by the OP-TEE core.
It uses the LibTomCrypt ECC and arithmetic helper functions as well as
the OP-TEE hash interface for the SM3 algorithm.
As far as the ECC point encoding goes, only the uncompressed form is
supported, as permitted by the standard. In practice, it means that the
cipher text always starts with the byte value 0x04. Other forms cannot
be decrypted by this implementation.
Signed-off-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
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| H A D | sub.mk | f9a78287dd1217877e079f0c3cc83f6181a51dc7 Tue Dec 17 08:19:56 UTC 2019 Jerome Forissier <jerome@forissier.org> core: ltc: add support for SM2 PKE
SM2 is a set of public key cryptographic algorithms based on elliptic
curves published by the Chinese Commercial Cryptography Administration
Office [1]. The standard has three main parts which define:
- A Digital Signature Algorithm (part 2)
- A Key Exchange Protocol (part 3)
- A Public Key Encryption method (part 4)
This commit implements the PKE LibTomcrypt for use by the OP-TEE core.
It uses the LibTomCrypt ECC and arithmetic helper functions as well as
the OP-TEE hash interface for the SM3 algorithm.
As far as the ECC point encoding goes, only the uncompressed form is
supported, as permitted by the standard. In practice, it means that the
cipher text always starts with the byte value 0x04. Other forms cannot
be decrypted by this implementation.
Signed-off-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
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