// CRC-CCITT = X16 + X12 + X5 + X0 #define CRC_32 0x104C11DB7 // CRC-32 = X32 + X26 + X23 + X22 + X16 + X11 + X10 + X8 + X7 + X5 + X4 + X2 + X1 + X0 #define CHECK_CODE 0x8000 // check_code = x15,判断被除数位数>=16 //check_code是为了每次做异或运算时保证...
schema校验详细教程 Java java实现crc校验码生成,CRC使用java实现循环冗余检测,计网课程实验一、CRC生成算法原理1.1多项式编码多项式编码(polynomialcode),也称为CRC(cyclicredundancycheck,循环冗余校验码),多项式编码的思想是:将位串看成是系数为0或1的多项式。CRC
System.out.println("CRC 校验码:" + crcCode); } public static String calculateCRC(String data, int polynomial) { // 将字符串转换为字节数组 byte[] bytes = data.getBytes(); // 初始化 CRC 寄存器 int crc = 0x0000ffff; // 计算 CRC for (byte b : bytes) { crc ^= (int) b & 0x00...
(验证的byte数组) * @return */ public static byte[] setParamCRC(byte[] buf) { int checkCode = 0; checkCode = crc_ 16_CCITT_ False(buf, buf.length) ; byte[] crcByte = new byte[2] ; crcByte[0] = (byte) ((checkCode 8) 0xff) ; crcByte[1] = (byte) (checkCode 0xff) ...
/*public static int[] CRC8_TAB = { 0x00, 0x07, 0x0E, 0x09, 0x1C, 0x1B, 0x12, 0x15, 0x38, 0x3F, 0x36, 0x31, 0x24, 0x23, 0x2A, 0x2D, 0x70, 0x77, 0x7E, 0x79, 0x6C, 0x6B, 0x62, 0x65, 0x48, 0x4F, 0x46, 0x41, 0x54, ...
public static int get_crc16 (byte[] bufData, int buflen, byte[] pcrc) { int ret = 0; int CRC = 0x0000ffff; int POLYNOMIAL = 0x0000a001; int i, j; if (buflen == 0) { return ret; } for (i = 0; i < buflen; i++) ...
int[] crcCodes = new int[codesLength]; // Copy source code from 0 to sourceLength.拷贝原码。 System.arraycopy(sourceCodes, 0, crcCodes, 0, sourceLength); int temp, pos; // Division system.除法器。 for (int i = 0; i < sourceLength; i++) { ...
importcom.github.snksoft.crc.CRC;publicclassExample{publicstaticvoidmain(String[]args) {Stringdata="123456789";longccittCrc=CRC.calculateCRC(CRC.Parameters.CCITT,data.getBytes());System.out.printf("CRC is 0x%04X\n",ccittCrc);// prints "CRC is 0x29B1"} } ...
(crc, b[], off, end) java_util_zip_CRC32C_updateDirectByteBuffer, // implementation of java.util.zip.CRC32C.updateDirectByteBuffer(crc, address, off, end) java_lang_Float_intBitsToFloat, // implementation of java.lang.Float.intBitsToFloat() java_lang_Float_floatToRawIntBits, // ...
For larger data, table driven implementation is faster. Here is how to use it. importcom.github.snksoft.crc.CRC;publicclassExample{publicstaticvoidmain(String[]args) {Stringdata="123456789";CRCtableDriven=newCRC(CRC.Parameters.XMODEM);longxmodemCrc=tableDriven.calculateCRC(data.getBytes());System...