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- Make it possible to transfer Strings containing null values via ESP-NOW and FloodingMesh.

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- Add uint8ArrayToMultiString and bufferedUint8ArrayToMultiString TypeConversionFunctions to facilitate transfer of Strings containing null values.

- Add HKDF to CryptoInterface.

- Add ChaCha20 + Poly1305 AEAD to CryptoInterface.

- Add customizable nonce generator to CryptoInterface.

- Add ability to automatically encrypt/decrypt ESP-NOW messages via AEAD (ChaCha20 + Poly1305), independent from encrypted ESP-NOW connections.

- Greatly improve performance of incrementSessionKey, espnowGetMessageID, espnowSetMessageID and all non-template TypeConversionFunctions. The average performance increase is roughly a factor 5. Fun fact: Printing a MAC to a HEX String is now over twice as fast when using TypeConversionFunctions compared to using standard functionality like sprintf.

- Add uint64ToUint8Array and uint8ArrayToUint64 TypeConversionFunctions.

- Make it possible to use String values as ESP-NOW and FloodingMesh key seeds, instead of just requiring plain key arrays.

- Add customizable responseTransmittedHook to sendEspnowResponses.

- Add _responsesToSendMutex to make the new responseTransmittedHook safe to use.

- Remove verboseModePrinting from sendPeerRequestConfirmations method to reduce performance variations.

- Fix faulty messageID generation in FloodingMesh.

- Make assert checks more complete and easier to understand in the setMetadataDelimiter method of FloodingMesh.

- Rename EspnowEncryptionKey to EspnowEncryptedConnectionKey since there are now multiple encryption keys.

- Rename acceptsUnencryptedRequests to acceptsUnverifiedRequests, unencryptedMessageID to unsynchronizedMessageID, receivedEncryptedMessage to receivedEncryptedTransmission, since there are now multiple modes of encryption.

- Rename resultArrayLength to outputLength in CryptoInterface and remove its value restrictions in order to match the BearSSL functionality.

- Improve performance of FloodingMesh::encryptedBroadcast.

- Rename FloodingMesh methods maxUnencryptedMessageSize/maxEncryptedMessageSize to maxUnencryptedMessageLength/maxEncryptedMessageLength, so that String length naming is consistent within the library.

- Update examples to illustrate the new features.

- Improve comments.
This commit is contained in:
Anders
2019-12-04 02:30:16 +01:00
parent 2fef67dcb0
commit 962a23d253
20 changed files with 1202 additions and 318 deletions
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2
libraries/ESP8266WiFiMesh/src/MeshBackendBase.h
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@ -193,7 +193,7 @@ public:
/**
* Set a function that should be called after each update of the latestTransmissionOutcomes vector during attemptTransmission. (which happens after each individual transmission has finished)
* The function should return a bool. If this return value is true, attemptTransmission will continue with the next entry in the connectionQueue. If it is false, attemptTransmission will stop.
* The hook should return a bool. If this return value is true, attemptTransmission will continue with the next entry in the connectionQueue. If it is false, attemptTransmission will stop.
* The default transmissionOutcomesUpdateHook always returns true.
*
* Example use cases is modifying getMessage() between transmissions, or aborting attemptTransmission before all nodes in the connectionQueue have been contacted.