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Ignore domain parameters in RSA key generation

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Remove the ability to select a custom public exponent via domain parameters
in RSA key generation. The only way to select a custom public exponent is
now to pass custom production parameters to psa_generate_key_ext().

A subsequent commit will remove domain parameters altogether from the API,
thus this commit does not bother to update the documentation.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
2024-02-16 00:11:09 +01:00
parent 6a2c400b8c
commit 4c32b69f37
6 changed files with 23 additions and 116 deletions
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10
library/psa_crypto_rsa.h
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@ -109,6 +109,15 @@ psa_status_t mbedtls_psa_rsa_export_public_key(
* entry point.
*
* \param[in] attributes The attributes for the RSA key to generate.
* \param[in] params Production parameters for the key
* generation. This function only uses
* `params->data`,
* which contains the public exponent.
* This can be a null pointer if
* \c params_data_length is 0.
* \param params_data_length Length of `params->data` in bytes.
* This can be 0, in which case the
* public exponent will be 65537.
* \param[out] key_buffer Buffer where the key data is to be written.
* \param[in] key_buffer_size Size of \p key_buffer in bytes.
* \param[out] key_buffer_length On success, the number of bytes written in
@ -123,6 +132,7 @@ psa_status_t mbedtls_psa_rsa_export_public_key(
*/
psa_status_t mbedtls_psa_rsa_generate_key(
const psa_key_attributes_t *attributes,
const psa_key_production_parameters_t *params, size_t params_data_length,
uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length);
/** Sign an already-calculated hash with an RSA private key.