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mesh: encrypt/decrypt network pdu with ccm with single call

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This commit is contained in:
Matthias Ringwald 2018-10-29 21:46:09 +01:00
parent dc0c53e19d
commit 9f146e54f9
1 changed files with 2 additions and 22 deletions
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24
test/mesh/mesh.c
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@ -211,10 +211,6 @@ static void create_network_pdu_b(void *arg){
btstack_crypto_aes128_encrypt(&mesh_aes128_request, provisioning_data.privacy_key, encryption_block, obfuscation_block, &create_network_pdu_c, NULL);
}
static void create_network_pdu_a(void *arg){
btstack_crypto_ccm_encrypt_block(&mesh_ccm_request, 2 + transport_pdu_len - 16, &encryption_block[16], &network_pdu_data[7+16], &create_network_pdu_b, NULL);
}
static void create_network_pdu(void){
// get network nonce
@ -230,11 +226,7 @@ static void create_network_pdu(void){
uint8_t cypher_len = 2 + transport_pdu_len;
uint8_t net_mic_len = (ctl_ttl & 0x80) ? 8 : 4;
btstack_crypo_ccm_init(&mesh_ccm_request, provisioning_data.encryption_key, network_nonce, cypher_len, 0, net_mic_len);
if (cypher_len > 16){
btstack_crypto_ccm_encrypt_block(&mesh_ccm_request, 16, encryption_block, &network_pdu_data[7], &create_network_pdu_a, NULL);
} else {
btstack_crypto_ccm_encrypt_block(&mesh_ccm_request, cypher_len, encryption_block, &network_pdu_data[7], &create_network_pdu_b, NULL);
}
btstack_crypto_ccm_encrypt_block(&mesh_ccm_request, cypher_len, encryption_block, &network_pdu_data[7], &create_network_pdu_b, NULL);
}
// provisioning data iterator
@ -301,13 +293,6 @@ static void process_network_pdu_validate_d(void * arg){
}
static void process_network_pdu_validate_c(void * arg){
uint8_t ctl_ttl = network_pdu_data[1];
uint8_t net_mic_len = (ctl_ttl & 0x80) ? 8 : 4;
uint8_t cypher_len = network_pdu_len - 7 - net_mic_len;
btstack_crypto_ccm_decrypt_block(&mesh_ccm_request, cypher_len - 16, &network_pdu_data[7+16], &encryption_block[16], &process_network_pdu_validate_d, NULL);
}
static void process_network_pdu_validate_b(void * arg){
//
@ -346,12 +331,7 @@ static void process_network_pdu_validate_b(void * arg){
// 034b50057e400000010000
btstack_crypo_ccm_init(&mesh_ccm_request, process_network_pdu_prov_data->encryption_key, network_nonce, cypher_len, 0, net_mic_len);
if (cypher_len > 16){
btstack_crypto_ccm_decrypt_block(&mesh_ccm_request, 16, &network_pdu_data[7], encryption_block, &process_network_pdu_validate_c, NULL);
} else {
btstack_crypto_ccm_decrypt_block(&mesh_ccm_request, cypher_len, &network_pdu_data[7], encryption_block, &process_network_pdu_validate_d, NULL);
}
btstack_crypto_ccm_decrypt_block(&mesh_ccm_request, cypher_len, &network_pdu_data[7], encryption_block, &process_network_pdu_validate_d, NULL);
}
static void process_network_pdu_validate(void){