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pkg/driver_cryptocell_310: add psa ecc P256R1 pub key deriv.

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This commit is contained in:
Lukas-Luger 2025-04-04 17:12:02 +02:00
parent 4b69d6aada
commit 5be3e25da9
3 changed files with 41 additions and 0 deletions
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16
pkg/driver_cryptocell_310/include/psa_cryptocell_310_ecc_common.h
View File

@ -75,6 +75,22 @@ psa_status_t cryptocell_310_common_ecc_generate_key_pair(uint8_t *priv_key_buffe
uint32_t *pub_key_buffer_length,
CRYS_ECPKI_DomainID_t domain);
/**
* @brief Common ECC public key derivation function (not supported)
*
* @param priv_key_buffer Input buffer to read ECC private key
* @param pub_key_buffer Output buffer to write ECC public key
* @param priv_key_buffer_length Length of private key
* @param pub_key_buffer_length Output pointer to write public key length
* @param domain ECC domain of type @c CRYS_ECPKI_DomainID_t
* @return psa_status_t
*/
psa_status_t cryptocell_310_common_ecc_derive_pub_key(const uint8_t *priv_key_buffer,
uint8_t *pub_key_buffer,
uint32_t priv_key_buffer_length,
uint32_t *pub_key_buffer_length,
CRYS_ECPKI_DomainID_t domain);
/**
* @brief Common ECC signature function
*

15
pkg/driver_cryptocell_310/psa_cryptocell_310/ecc_common.c
View File

@ -72,6 +72,21 @@ psa_status_t cryptocell_310_common_ecc_generate_key_pair(uint8_t *priv_key_buffe
return PSA_SUCCESS;
}
psa_status_t cryptocell_310_common_ecc_derive_pub_key(const uint8_t *priv_key_buffer,
uint8_t *pub_key_buffer,
uint32_t priv_key_buffer_length,
uint32_t *pub_key_buffer_length,
CRYS_ECPKI_DomainID_t domain)
{
(void) priv_key_buffer;
(void) pub_key_buffer;
(void) priv_key_buffer_length;
(void) pub_key_buffer_length;
(void) domain;
DEBUG("cryptocell_310 does not support key derivation.\n");
return PSA_ERROR_NOT_SUPPORTED;
}
psa_status_t cryptocell_310_common_ecc_sign(const uint8_t *priv_key,
uint32_t priv_key_size,
const uint8_t *input,

10
pkg/driver_cryptocell_310/psa_cryptocell_310/ecc_p256.c
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@ -35,6 +35,16 @@ psa_status_t psa_generate_ecc_p256r1_key_pair( const psa_key_attributes_t *attr
CRYS_ECPKI_DomainID_secp256r1);
}
psa_status_t psa_derive_ecc_p256r1_public_key( const uint8_t *priv_key_buffer, uint8_t *pub_key_buffer,
size_t priv_key_buffer_length,
size_t *pub_key_buffer_length)
{
return cryptocell_310_common_ecc_derive_pub_key(priv_key_buffer, pub_key_buffer,
(uint32_t)priv_key_buffer_length,
(uint32_t *)pub_key_buffer_length,
CRYS_ECPKI_DomainID_secp256r1);
}
psa_status_t psa_ecc_p256r1_sign_hash( const psa_key_attributes_t *attributes,
psa_algorithm_t alg,
const uint8_t *key_buffer,