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tests: src: pk_helpers: select predefined keys using PSA key type and bits

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A new look-up table is created, "predefined_keys_psa", to list all the
predefined keys together with the corresponding PSA key type and bits.
A new look-up table was created in order not to conflict with the already
existing "predefined_keys" one.

"mbedtls_pk_helpers_get_predefined_key_data" is modified in order to
use the new look-up table.

Signed-off-by: Valerio Setti <[email protected]>
This commit is contained in:
Valerio Setti
2026-01-08 09:16:21 +01:00
parent 88e0eb729e
commit e28511869c
2 changed files with 67 additions and 64 deletions
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tests/include/test/pk_helpers.h
+11 -13
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@@ -22,22 +22,20 @@ typedef enum {
} pk_context_populate_method_t;
/**
* Get predefined key pair/public key data for the requested key. For the time
* being it only works with EC and RSA keys.
* Get predefined key pair/public key data for the requested key.
*
* \param is_ec: 1 for EC keys, 0 for RSA.
* \param group_id_or_keybits: this should be 'group_id' in case of EC keys, and
* bitsize in case of RSA keys.
* \param key: output buffer where the key pair will be copied.
* \param key_len: size in bytes of the "key" buffer.
* \param pub_key: output buffer where the public key will be copied.
* \param pub_key_len: size in bytes of the "pub_key" buffer.
* If the specified key type or bit length does not exist in the list of known
* predefined keys, an assertion failure will be generated an the test will
* fail.
*
* \return 0 on success;
* \param key_type: PSA key type for the key being requested.
* \param key_bits: bit length for the PSA key being requested.
* \param output: pointer which on exit will point to the key material that has
* been requested by "key_type" and "key_bits".
* \param output_len: length of the key material being pointed to from "output".
*/
int mbedtls_pk_helpers_get_predefined_key_data(int is_ec, int group_id_or_keybits,
const unsigned char **key, size_t *key_len,
const unsigned char **pub_key, size_t *pub_key_len);
void mbedtls_pk_helpers_get_predefined_key_data(psa_key_type_t key_type, psa_key_bits_t key_bits,
const uint8_t **output, size_t *output_len);
/**
* Create a PSA key using prefined key data.