mirror of
https://github.com/espressif/openthread.git
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Thomas Cuyckens
924dd1d1ae
Reject a null `aHeader` combined with non-zero `mHeaderLength` in `otPlatCryptoAesCcmProcessOneShot()`, in both the mbedtls and PSA backends. Add `otPlatCryptoIsKeyRefValid()` so each crypto backend can define what KeyRef values it accepts, and use it in the default PSA backend at every entry point that takes a KeyRef (import/export/destroy/ has-key, AES, HMAC, HKDF, ECDSA) instead of relying solely on the underlying PSA library to reject a bad handle. Make the "invalid KeyRef" sentinel backend-configurable via the new `OPENTHREAD_CONFIG_CRYPTO_INVALID_KEY_REF`, defaulting to `PSA_KEY_ID_NULL` (0), so a backend other than the default PSA one can reserve a different value as invalid without a generic core header depending on any one backend's implementation file.
130 lines
4.3 KiB
C
130 lines
4.3 KiB
C
/*
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* Copyright (c) 2021, The OpenThread Authors.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "platform-simulation.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <openthread/config.h>
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#include <openthread/platform/crypto.h>
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#if OPENTHREAD_CONFIG_PLATFORM_KEY_REFERENCES_ENABLE
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// crypto key storage stubs
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bool otPlatCryptoIsKeyRefValid(otCryptoKeyRef aKeyRef)
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{
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OT_UNUSED_VARIABLE(aKeyRef);
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// No key ref is ever actually stored by this stub, so none is valid.
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return false;
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}
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otError otPlatCryptoImportKey(otCryptoKeyRef *aKeyRef,
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otCryptoKeyType aKeyType,
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otCryptoKeyAlgorithm aKeyAlgorithm,
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int aKeyUsage,
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otCryptoKeyStorage aKeyPersistence,
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const uint8_t *aKey,
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size_t aKeyLen)
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{
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OT_UNUSED_VARIABLE(aKeyRef);
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OT_UNUSED_VARIABLE(aKeyType);
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OT_UNUSED_VARIABLE(aKeyAlgorithm);
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OT_UNUSED_VARIABLE(aKeyUsage);
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OT_UNUSED_VARIABLE(aKeyPersistence);
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OT_UNUSED_VARIABLE(aKey);
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OT_UNUSED_VARIABLE(aKeyLen);
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return OT_ERROR_NOT_IMPLEMENTED;
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}
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otError otPlatCryptoExportKey(otCryptoKeyRef aKeyRef, uint8_t *aBuffer, size_t aBufferLen, size_t *aKeyLen)
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{
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OT_UNUSED_VARIABLE(aKeyRef);
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OT_UNUSED_VARIABLE(aBuffer);
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OT_UNUSED_VARIABLE(aBufferLen);
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OT_UNUSED_VARIABLE(aKeyLen);
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return OT_ERROR_NOT_IMPLEMENTED;
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}
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otError otPlatCryptoDestroyKey(otCryptoKeyRef aKeyRef)
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{
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OT_UNUSED_VARIABLE(aKeyRef);
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return OT_ERROR_NOT_IMPLEMENTED;
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}
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bool otPlatCryptoHasKey(otCryptoKeyRef aKeyRef)
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{
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OT_UNUSED_VARIABLE(aKeyRef);
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return false;
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}
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otError otPlatCryptoEcdsaGenerateAndImportKey(otCryptoKeyRef aKeyRef)
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{
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OT_UNUSED_VARIABLE(aKeyRef);
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return OT_ERROR_NONE;
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}
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otError otPlatCryptoEcdsaExportPublicKey(otCryptoKeyRef aKeyRef, otPlatCryptoEcdsaPublicKey *aPublicKey)
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{
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OT_UNUSED_VARIABLE(aKeyRef);
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OT_UNUSED_VARIABLE(aPublicKey);
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return OT_ERROR_NONE;
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}
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otError otPlatCryptoEcdsaSignUsingKeyRef(otCryptoKeyRef aKeyRef,
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const otPlatCryptoSha256Hash *aHash,
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otPlatCryptoEcdsaSignature *aSignature)
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{
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OT_UNUSED_VARIABLE(aKeyRef);
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OT_UNUSED_VARIABLE(aHash);
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OT_UNUSED_VARIABLE(aSignature);
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return OT_ERROR_NONE;
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}
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otError otPlatCryptoEcdsaVerifyUsingKeyRef(otCryptoKeyRef aKeyRef,
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const otPlatCryptoSha256Hash *aHash,
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const otPlatCryptoEcdsaSignature *aSignature)
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{
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OT_UNUSED_VARIABLE(aKeyRef);
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OT_UNUSED_VARIABLE(aHash);
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OT_UNUSED_VARIABLE(aSignature);
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return OT_ERROR_NONE;
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}
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#endif // OPENTHREAD_CONFIG_PLATFORM_KEY_REFERENCES_ENABLE
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