sm3hash_tosm2() 栈溢出报错，SM2签名和验签没测。安全认证没输入数据没测

app/src/main/cpp/SpiLib.cpp

@@ -1217,7 +1217,73 @@ int SpiLIb::SM2cert(int type,int index,string cert,unsigned char *out_cert)//证
     close(fd);
     return 0;
 }
+int SpiLIb::Indentify(unsigned char *to_idt,unsigned char *out_idt)//安全认证
+{
+    int i;
+    int cnt;
+    unsigned char txbuf[512];
+    unsigned char rxbuf[512];
+
+    int retval;
+    int msglen;
+    int fd;
+    const char *devname = "/dev/spidevSE";
+    //const char *devname = "/dev/spidev0.0";
+    //const char *devname = "/dev/mtkgpioctrl";
+
+    //  NrsecSpiPort spi("/dev/spidevSE");
+    //
+    //    // NrsecSpiPort spi("/dev/spidev0.0")
+    fd = open(devname, O_RDWR);
+    if (fd < 0) {
+        perror("open");
+        return 1;
+    }
+    spi_master_init(devname, fd);
+
+
+    msglen = 5;
+    memset(rxbuf, 0, sizeof(rxbuf));
+    memset(txbuf, 0, sizeof(txbuf));
+
+    //printf("tx %1d bytes: ", msglen);
+    //__android_log_print(ANDROID_LOG_INFO, "SPi", "tx %1d bytes", msglen);
+
+    CMD_RESEND:
+
+    memcpy(txbuf, (const void *) Indentify_CMD, sizeof(Indentify_CMD));
+
+    SendCmdHeader(fd, txbuf, rxbuf);
+
+    RcvINS(fd,txbuf,rxbuf,txbuf[1]);
+
+    SendId(fd,txbuf,rxbuf, 0x55);
 
+    memcpy(txbuf, to_idt, 32);
+
+    SendData(fd, txbuf, rxbuf,32);
+
+    SendEnd(fd,txbuf,rxbuf);
+
+    memcpy(txbuf, (const void *) SM2decoder_CMD, sizeof(SM2decoder_CMD));
+
+    RcvINS(fd,txbuf,rxbuf,txbuf[1]);
+
+    RcvLEN(fd,txbuf,rxbuf+1, 1);
+
+    RcvData(fd, txbuf, rxbuf+2);
+
+    RcvSW(fd, txbuf, rxbuf+2+rxbuf[1], 0x90);
+
+    //__android_log_print(ANDROID_LOG_INFO, "SPi", "rx %1d bytes:", rxbuf[1]+4);
+    for (i = 2; i < rxbuf[1]+2; i++) {
+        //sprintf(output, " %02x ", rxbuf[i]);
+        out_idt[i-2]= rxbuf[i];
+    }
+
+    close(fd);
+    return 0;
+}
 
 
 

app/src/main/cpp/SpiLib.h

@@ -26,6 +26,7 @@ class SpiLIb{
 public:
     int Spirandom();
     int Version();
+    int Indentify(unsigned char *to_idt,unsigned char *out_idt);
     int SM2keypair(int index);
     int SM2OutPub(int index,unsigned char result[]);
     int SM2OutPri(int index,unsigned char result[]);
@@ -42,6 +43,7 @@ public:
 
 
 
+
 private:
     const unsigned char crc7_table[256]= {
             0x00, 0x09, 0x12, 0x1b, 0x24, 0x2d, 0x36, 0x3f,