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fixing portduino

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This commit is contained in:
Thomas Göttgens 2023-01-07 13:36:02 +01:00
parent be2d3f7769
commit 96fa5dafb8
1 changed files with 9 additions and 7 deletions
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16
src/platform/portduino/CrossPlatformCryptoEngine.cpp
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@ -54,16 +54,18 @@ class CrossPlatformCryptoEngine : public CryptoEngine
static uint8_t scratch[MAX_BLOCKSIZE];
//size_t nc_off = 0;
// LOG_DEBUG("ESP32 encrypt!\n");
initNonce(fromNode, packetId);
assert(numBytes <= MAX_BLOCKSIZE);
memcpy(scratch, bytes, numBytes);
memset(scratch + numBytes, 0,
if (numBytes <= MAX_BLOCKSIZE) {
memcpy(scratch, bytes, numBytes);
memset(scratch + numBytes, 0,
sizeof(scratch) - numBytes); // Fill rest of buffer with zero (in case cypher looks at it)
ctr->setIV(nonce, sizeof(nonce));
ctr->setCounterSize(4);
ctr->encrypt(bytes, scratch, numBytes);
ctr->setIV(nonce, sizeof(nonce));
ctr->setCounterSize(4);
ctr->encrypt(bytes, scratch, numBytes);
} else {
LOG_ERROR("Packet too large for crypto engine: %d. noop encryption!\n", numBytes);
}
}
}