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ah feck

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This commit is contained in:
Thomas Göttgens 2023-01-07 15:43:17 +01:00
parent d8b85f9a09
commit 3a8ffe7ac2
1 changed files with 2 additions and 3 deletions
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5
src/platform/esp32/ESP32CryptoEngine.cpp
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@ -42,13 +42,12 @@ class ESP32CryptoEngine : public CryptoEngine
virtual void encrypt(uint32_t fromNode, uint64_t packetId, size_t numBytes, uint8_t *bytes) override virtual void encrypt(uint32_t fromNode, uint64_t packetId, size_t numBytes, uint8_t *bytes) override
{ {
if (key.length > 0) { if (key.length > 0) {
uint8_t stream_block[16];
size_t nc_off = 0;
LOG_DEBUG("ESP32 crypt fr=%x, num=%x, numBytes=%d!\n", fromNode, (uint32_t) packetId, numBytes); LOG_DEBUG("ESP32 crypt fr=%x, num=%x, numBytes=%d!\n", fromNode, (uint32_t) packetId, numBytes);
initNonce(fromNode, packetId); initNonce(fromNode, packetId);
if (numBytes <= MAX_BLOCKSIZE) { if (numBytes <= MAX_BLOCKSIZE) {
static uint8_t scratch[MAX_BLOCKSIZE]; static uint8_t scratch[MAX_BLOCKSIZE];
uint8_t stream_block[16];
size_t nc_off = 0;
memcpy(scratch, bytes, numBytes); memcpy(scratch, bytes, numBytes);
memset(scratch + numBytes, 0, memset(scratch + numBytes, 0,
sizeof(scratch) - numBytes); // Fill rest of buffer with zero (in case cypher looks at it) sizeof(scratch) - numBytes); // Fill rest of buffer with zero (in case cypher looks at it)