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nonce working

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This commit is contained in:
Nunu 2024-01-24 10:39:23 +01:00
parent 4f6a872a72
commit 0b3785b644
2 changed files with 16 additions and 8 deletions
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22
app/messenger.c
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@ -63,11 +63,6 @@ unsigned char key[32] = {
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
};
unsigned char nonce[12] = {
0x07, 0x00, 0x00, 0x00,
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47
};
// -----------------------------------------------------
void MSG_FSKSendData() {
@ -565,7 +560,20 @@ void MSG_SendPacket(union DataPacket packet) {
dataPacket = packet;
if(packet.unencrypted.header == ENCRYPTED_MESSAGE_PACKET){
CRYPTO_Crypt(packet.encrypted.ciphertext, PAYLOAD_LENGTH, dataPacket.encrypted.ciphertext, nonce, key, 256);
char nonce[NONCE_LENGTH];
CRYPTO_Random(nonce, NONCE_LENGTH-1);
// this is wat happens when we have global state
memcpy(packet.encrypted.nonce, nonce, NONCE_LENGTH);
CRYPTO_Crypt(
packet.encrypted.ciphertext,
PAYLOAD_LENGTH,
dataPacket.encrypted.ciphertext,
&packet.encrypted.nonce,
key,
256
);
memcpy(dataPacket.encrypted.nonce, nonce, sizeof(dataPacket.encrypted.nonce));
}
@ -682,7 +690,7 @@ void MSG_StorePacket(const uint16_t interrupt_bits) {
CRYPTO_Crypt(dataPacket.encrypted.ciphertext,
PAYLOAD_LENGTH,
dencryptedTxMessage,
dataPacket.encrypted.nonce,
&dataPacket.encrypted.nonce,
key,
256);

2
app/messenger.h
View File

@ -46,7 +46,7 @@ union DataPacket
struct{
uint8_t header;
uint8_t ciphertext[PAYLOAD_LENGTH];
uint8_t nonce[NONCE_LENGTH];
unsigned char nonce[NONCE_LENGTH];
// uint8_t signature[SIGNATURE_LENGTH];
} encrypted;