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add ev1 mac with and wo data

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This commit is contained in:
merlokk 2021-08-04 18:07:04 +03:00
commit 450ec87296
2 changed files with 28 additions and 4 deletions
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6
client/src/cmdhfmfdes.c
View file

@ -4137,7 +4137,7 @@ static int CmdHF14ADesCreateFile(const char *Cmd) {
DesfireContext dctx;
int securechann = defaultSecureChannel;
uint32_t appid = 0x000000;
int res = CmdDesGetSessionParameters(ctx, &dctx, 3, 4, 5, 6, 7, 8, 9, 10, 11, &securechann, DCMPlain, &appid);
int res = CmdDesGetSessionParameters(ctx, &dctx, 3, 4, 5, 6, 7, 8, 9, 10, 11, &securechann, DCMMACed, &appid);
if (res) {
CLIParserFree(ctx);
return res;
@ -4278,7 +4278,7 @@ static int CmdHF14ADesCreateValueFile(const char *Cmd) {
DesfireContext dctx;
int securechann = defaultSecureChannel;
uint32_t appid = 0x000000;
int res = CmdDesGetSessionParameters(ctx, &dctx, 3, 4, 5, 6, 7, 8, 9, 10, 11, &securechann, DCMPlain, &appid);
int res = CmdDesGetSessionParameters(ctx, &dctx, 3, 4, 5, 6, 7, 8, 9, 10, 11, &securechann, DCMMACed, &appid);
if (res) {
CLIParserFree(ctx);
return res;
@ -4411,7 +4411,7 @@ static int CmdHF14ADesCreateRecordFile(const char *Cmd) {
DesfireContext dctx;
int securechann = defaultSecureChannel;
uint32_t appid = 0x000000;
int res = CmdDesGetSessionParameters(ctx, &dctx, 3, 4, 5, 6, 7, 8, 9, 10, 11, &securechann, DCMPlain, &appid);
int res = CmdDesGetSessionParameters(ctx, &dctx, 3, 4, 5, 6, 7, 8, 9, 10, 11, &securechann, DCMMACed, &appid);
if (res) {
CLIParserFree(ctx);
return res;

26
client/src/mifare/desfiresecurechan.c
View file

@ -147,6 +147,30 @@ static uint8_t DesfireGetCmdHeaderLen(uint8_t cmd) {
return 0;
}
static const uint8_t EV1TransmitMAC[] = {
MFDES_WRITE_DATA,
MFDES_CREDIT,
MFDES_LIMITED_CREDIT,
MFDES_DEBIT,
MFDES_WRITE_RECORD,
MFDES_UPDATE_RECORD,
MFDES_COMMIT_READER_ID,
MFDES_INIT_KEY_SETTINGS,
MFDES_ROLL_KEY_SETTINGS,
MFDES_FINALIZE_KEY_SETTINGS,
};
static bool DesfireEV1TransmitMAC(DesfireContext *ctx, uint8_t cmd) {
if (ctx->secureChannel != DACEV1)
return true;
for (int i = 0; i < ARRAY_LENGTH(EV1TransmitMAC); i++)
if (EV1TransmitMAC[i] == cmd)
return true;
return false;
}
static void DesfireSecureChannelEncodeD40(DesfireContext *ctx, uint8_t cmd, uint8_t *srcdata, size_t srcdatalen, uint8_t *dstdata, size_t *dstdatalen) {
uint8_t data[1024] = {0};
size_t rlen = 0;
@ -216,7 +240,7 @@ static void DesfireSecureChannelEncodeEV1(DesfireContext *ctx, uint8_t cmd, uint
memcpy(dstdata, srcdata, srcdatalen);
*dstdatalen = srcdatalen;
if (srcdatalen > hdrlen && ctx->commMode == DCMMACed) {
if (ctx->commMode == DCMMACed && DesfireEV1TransmitMAC(ctx, cmd)) {
memcpy(&dstdata[srcdatalen], cmac, DesfireGetMACLength(ctx));
*dstdatalen = srcdatalen + DesfireGetMACLength(ctx);
}