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Add asymmetric encryption to TS provider
Adding support for asymmetric encryption to the Trusted Services provider. However, the version of the TS implementation used for testing has a bug which prevents us from properly testing using some of the algorithms. Signed-off-by: Ionut Mihalcea <ionut.mihalcea@arm.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| // Copyright 2021 Contributors to the Parsec project. | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| use super::Provider; | ||
| use crate::authenticators::ApplicationIdentity; | ||
| use crate::key_info_managers::KeyIdentity; | ||
| use log::error; | ||
| use parsec_interface::operations::{psa_asymmetric_decrypt, psa_asymmetric_encrypt}; | ||
| use parsec_interface::requests::Result; | ||
|
|
||
| impl Provider { | ||
| pub(super) fn psa_asymmetric_encrypt_internal( | ||
| &self, | ||
| application_identity: &ApplicationIdentity, | ||
| op: psa_asymmetric_encrypt::Operation, | ||
| ) -> Result<psa_asymmetric_encrypt::Result> { | ||
| let key_identity = KeyIdentity::new( | ||
| application_identity.clone(), | ||
| self.provider_identity.clone(), | ||
| op.key_name.clone(), | ||
| ); | ||
| let key_id = self.key_info_store.get_key_id(&key_identity)?; | ||
| let salt_buff = match &op.salt { | ||
| Some(salt) => salt.to_vec(), | ||
| None => Vec::new(), | ||
| }; | ||
|
|
||
| match self | ||
| .context | ||
| .asym_encrypt(key_id, op.alg, op.plaintext.to_vec(), salt_buff) | ||
| { | ||
| Ok(ciphertext) => Ok(psa_asymmetric_encrypt::Result { | ||
| ciphertext: ciphertext.into(), | ||
| }), | ||
| Err(error) => { | ||
| error!("Encrypt failed with status: {}", error); | ||
| Err(error) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| pub(super) fn psa_asymmetric_decrypt_internal( | ||
| &self, | ||
| application_identity: &ApplicationIdentity, | ||
| op: psa_asymmetric_decrypt::Operation, | ||
| ) -> Result<psa_asymmetric_decrypt::Result> { | ||
| let key_identity = KeyIdentity::new( | ||
| application_identity.clone(), | ||
| self.provider_identity.clone(), | ||
| op.key_name.clone(), | ||
| ); | ||
| let key_id = self.key_info_store.get_key_id(&key_identity)?; | ||
| let salt_buff = match &op.salt { | ||
| Some(salt) => salt.to_vec(), | ||
| None => Vec::new(), | ||
| }; | ||
|
|
||
| match self | ||
| .context | ||
| .asym_decrypt(key_id, op.alg, op.ciphertext.to_vec(), salt_buff) | ||
| { | ||
| Ok(plaintext) => Ok(psa_asymmetric_decrypt::Result { | ||
| plaintext: plaintext.into(), | ||
| }), | ||
| Err(error) => { | ||
| error!("Decrypt failed with status: {}", error); | ||
| Err(error) | ||
| } | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| // Copyright 2021 Contributors to the Parsec project. | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| use super::ts_protobuf::{ | ||
| AsymmetricDecryptIn, AsymmetricDecryptOut, AsymmetricEncryptIn, AsymmetricEncryptOut, | ||
| }; | ||
| use super::Context; | ||
| use parsec_interface::operations::psa_algorithm::AsymmetricEncryption; | ||
| use parsec_interface::requests::ResponseStatus; | ||
| use std::convert::TryInto; | ||
| use zeroize::Zeroize; | ||
|
|
||
| impl Context { | ||
| pub fn asym_encrypt( | ||
| &self, | ||
| key_id: u32, | ||
| alg: AsymmetricEncryption, | ||
| mut plaintext: Vec<u8>, | ||
| mut salt: Vec<u8>, | ||
| ) -> Result<Vec<u8>, ResponseStatus> { | ||
| let alg = alg.try_into().map_err(|e| { | ||
| plaintext.zeroize(); | ||
| salt.zeroize(); | ||
| e | ||
| })?; | ||
| let req = AsymmetricEncryptIn { | ||
| id: key_id, | ||
| alg, | ||
| plaintext, | ||
| salt, | ||
| }; | ||
| let AsymmetricEncryptOut { ciphertext } = self.send_request(&req)?; | ||
|
|
||
| Ok(ciphertext) | ||
| } | ||
|
|
||
| pub fn asym_decrypt( | ||
| &self, | ||
| key_id: u32, | ||
| alg: AsymmetricEncryption, | ||
| mut ciphertext: Vec<u8>, | ||
| mut salt: Vec<u8>, | ||
| ) -> Result<Vec<u8>, ResponseStatus> { | ||
| let alg = alg.try_into().map_err(|e| { | ||
| ciphertext.zeroize(); | ||
| salt.zeroize(); | ||
| e | ||
| })?; | ||
| let req = AsymmetricDecryptIn { | ||
| id: key_id, | ||
| alg, | ||
| ciphertext, | ||
| salt, | ||
| }; | ||
| let AsymmetricDecryptOut { plaintext } = self.send_request(&req)?; | ||
|
|
||
| Ok(plaintext) | ||
| } | ||
| } |
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Submodule trusted-services-vendor
updated
from c1cf91 to d5cc32