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gnrc_lorawan: use aes128_cmac_.* instead of cmac_.*

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This commit is contained in:
Martine Lenders 2022-08-31 08:53:00 +02:00
parent 5e59649fda
commit aead6d2010
No known key found for this signature in database
GPG Key ID: 2134D77A5336DD80
1 changed files with 9 additions and 9 deletions
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18
sys/net/gnrc/link_layer/lorawan/gnrc_lorawan_crypto.c
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@ -16,7 +16,7 @@
#include <stdio.h>
#include <string.h>
#include "hashes/cmac.h"
#include "hashes/aes128_cmac.h"
#include "crypto/ciphers.h"
#include "net/gnrc/lorawan.h"
@ -31,7 +31,7 @@
#define APP_SKEY_B0_START (0x1)
#define NWK_SKEY_B0_START (0x2)
static cmac_context_t CmacContext;
static aes128_cmac_context_t CmacContext;
static uint8_t digest[LORAMAC_APPKEY_LEN];
static cipher_t AesContext;
@ -48,9 +48,9 @@ typedef struct __attribute__((packed)) {
void gnrc_lorawan_calculate_join_mic(const uint8_t *buf, size_t len,
const uint8_t *key, le_uint32_t *out)
{
cmac_init(&CmacContext, key, LORAMAC_APPKEY_LEN);
cmac_update(&CmacContext, buf, len);
cmac_final(&CmacContext, digest);
aes128_cmac_init(&CmacContext, key, LORAMAC_APPKEY_LEN);
aes128_cmac_update(&CmacContext, buf, len);
aes128_cmac_final(&CmacContext, digest);
memcpy(out, digest, sizeof(le_uint32_t));
}
@ -73,12 +73,12 @@ void gnrc_lorawan_calculate_mic(const le_uint32_t *dev_addr, uint32_t fcnt,
block.len = iolist_size(frame);
cmac_init(&CmacContext, nwkskey, LORAMAC_APPKEY_LEN);
cmac_update(&CmacContext, &block, sizeof(block));
aes128_cmac_init(&CmacContext, nwkskey, LORAMAC_APPKEY_LEN);
aes128_cmac_update(&CmacContext, &block, sizeof(block));
for (iolist_t *io = frame; io != NULL; io = io->iol_next) {
cmac_update(&CmacContext, io->iol_base, io->iol_len);
aes128_cmac_update(&CmacContext, io->iol_base, io->iol_len);
}
cmac_final(&CmacContext, digest);
aes128_cmac_final(&CmacContext, digest);
memcpy(out, digest, sizeof(le_uint32_t));
}