Since the amount of data that can (or should) be encrypted or signed using asymmetric keys is limited by the key size, asymmetric key operations using keys in a secure element must be done in single function calls.
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| struct | psa_drv_se_asymmetric_t |
| | A struct containing all of the function pointers needed to implement asymmetric cryptographic operations using secure elements. More...
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| typedef psa_status_t(* | psa_drv_se_asymmetric_sign_t) (psa_drv_se_context_t *drv_context, psa_key_slot_number_t key_slot, psa_algorithm_t alg, const uint8_t *p_hash, size_t hash_length, uint8_t *p_signature, size_t signature_size, size_t *p_signature_length) |
| | A function that signs a hash or short message with a private key in a secure element.
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| typedef psa_status_t(* | psa_drv_se_asymmetric_verify_t) (psa_drv_se_context_t *drv_context, psa_key_slot_number_t key_slot, psa_algorithm_t alg, const uint8_t *p_hash, size_t hash_length, const uint8_t *p_signature, size_t signature_length) |
| | A function that verifies the signature a hash or short message using an asymmetric public key in a secure element.
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| typedef psa_status_t(* | psa_drv_se_asymmetric_encrypt_t) (psa_drv_se_context_t *drv_context, psa_key_slot_number_t key_slot, psa_algorithm_t alg, const uint8_t *p_input, size_t input_length, const uint8_t *p_salt, size_t salt_length, uint8_t *p_output, size_t output_size, size_t *p_output_length) |
| | A function that encrypts a short message with an asymmetric public key in a secure element.
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| typedef psa_status_t(* | psa_drv_se_asymmetric_decrypt_t) (psa_drv_se_context_t *drv_context, psa_key_slot_number_t key_slot, psa_algorithm_t alg, const uint8_t *p_input, size_t input_length, const uint8_t *p_salt, size_t salt_length, uint8_t *p_output, size_t output_size, size_t *p_output_length) |
| | A function that decrypts a short message with an asymmetric private key in a secure element.
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◆ psa_drv_se_asymmetric_decrypt_t
A function that decrypts a short message with an asymmetric private key in a secure element.
- Parameters
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| drv_context | The driver context structure. |
| key_slot | Key slot of an asymmetric key pair |
| alg | An asymmetric encryption algorithm that is compatible with the type of key |
| p_input | The message to decrypt |
| input_length | Size of the p_input buffer in bytes |
| p_salt | A salt or label, if supported by the encryption algorithm If the algorithm does not support a salt, pass NULL. If the algorithm supports an optional salt and you do not want to pass a salt, pass NULL. For PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is supported. |
| salt_length | Size of the p_salt buffer in bytes If p_salt is NULL, pass 0. |
| p_output | Buffer where the decrypted message is to be written |
| output_size | Size of the p_output buffer in bytes |
| p_output_length | On success, the number of bytes that make up the returned output |
- Returns
- PSA_SUCCESS
Definition at line 671 of file psa_crypto_se_driver.h.
◆ psa_drv_se_asymmetric_encrypt_t
A function that encrypts a short message with an asymmetric public key in a secure element.
- Parameters
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| drv_context | The driver context structure. |
| key_slot | Key slot of a public key or an asymmetric key pair |
| alg | An asymmetric encryption algorithm that is compatible with the type of key |
| p_input | The message to encrypt |
| input_length | Size of the p_input buffer in bytes |
| p_salt | A salt or label, if supported by the encryption algorithm If the algorithm does not support a salt, pass NULL. If the algorithm supports an optional salt and you do not want to pass a salt, pass NULL. For PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is supported. |
| salt_length | Size of the p_salt buffer in bytes If p_salt is NULL, pass 0. |
| p_output | Buffer where the encrypted message is to be written |
| output_size | Size of the p_output buffer in bytes |
| p_output_length | On success, the number of bytes that make up the returned output |
- Returns
- PSA_SUCCESS
Definition at line 631 of file psa_crypto_se_driver.h.
◆ psa_drv_se_asymmetric_sign_t
A function that signs a hash or short message with a private key in a secure element.
- Parameters
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| drv_context | The driver context structure. |
| key_slot | Key slot of an asymmetric key pair |
| alg | A signature algorithm that is compatible with the type of key |
| p_hash | The hash to sign |
| hash_length | Size of the p_hash buffer in bytes |
| p_signature | Buffer where the signature is to be written |
| signature_size | Size of the p_signature buffer in bytes |
| p_signature_length | On success, the number of bytes that make up the returned signature value |
- Returns
- PSA_SUCCESS
Definition at line 569 of file psa_crypto_se_driver.h.
◆ psa_drv_se_asymmetric_verify_t
A function that verifies the signature a hash or short message using an asymmetric public key in a secure element.
- Parameters
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| drv_context | The driver context structure. |
| key_slot | Key slot of a public key or an asymmetric key pair |
| alg | A signature algorithm that is compatible with the type of key |
| p_hash | The hash whose signature is to be verified |
| hash_length | Size of the p_hash buffer in bytes |
| p_signature | Buffer containing the signature to verify |
| signature_length | Size of the p_signature buffer in bytes |
- Returns
- PSA_SUCCESS The signature is valid.
Definition at line 594 of file psa_crypto_se_driver.h.
1.9.8