public static int FNVHash1(byte[] data) { final int p = 16777619; int hash = (int)2166136261L; for(byte b:data) hash = (hash ^ b) * p; hash += hash << 13; hash ^= hash >> 7; hash += hash << 3; hash ^= hash >> 17; hash += hash << 5; return...
importjava.io.FileInputStream;importjava.security.MessageDigest;publicclassFileHashCalculator{publicstaticStringcalculateMD5(StringfilePath){try{MessageDigestmd=MessageDigest.getInstance("MD5");FileInputStreamfis=newFileInputStream(filePath);byte[]dataBytes=newbyte[1024];intbytesRead;while((bytesRead=fis.read...
public static int FNVHash1(byte[] data) { final int p = 16777619; int hash = (int) 2166136261L; for (byte b : data) hash = (hash ^ b) * p; hash += hash << 13; hash ^= hash >> 7; hash += hash << 3; hash ^= hash >> 17; ...
Computes the XXH128 hash of the provided data. C# コピー [System.CLSCompliant(false)] public static UInt128 HashToUInt128 (ReadOnlySpan<byte> source, long seed = 0); Parameters source ReadOnlySpan<Byte> The data to hash. seed Int64 The seed value for this hash computation. The defa...
HCRYPTHASH hHash,//CryptCreateHash创建的哈希对象的句柄DWORD dwParam,//查询类型。可以选择查询HASH结果的大小或HASH值BYTE *pbData,//指向接收数据的缓冲区的指针DWORD *pdwDataLen,//pbData的字节数DWORD dwFlags//0); 编码实现 代码来自https://www.jb51.net/books/755116.html ...
Signs data that was hashed by using the specified hashing algorithm and padding mode. C# Copy public override byte[] SignHash(byte[] hash, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.RSASignaturePadding padding); Parameters hash Byte[] The hash to ...
Computes the XxHash64 hash of the provided data. C# [System.CLSCompliant(false)]publicstaticulongHashToUInt64(ReadOnlySpan<byte> source,longseed =0); Parameters source ReadOnlySpan<Byte> The data to hash. seed Int64 The seed value for this hash computation. ...
Performance on large data is only one part of the picture. Hashing is also very useful in constructions like hash tables and bloom filters. In these use cases, it's frequent to hash a lot of small data (starting at a few bytes). Algorithm's performance can be very different for such ...
("MD5"); md.update(str.getBytes()); byte byteData[] = md.digest(); //convert the byte to hex format StringBuffer sb = new StringBuffer(); for (int i = 0; i < byteData.length; i++) { sb.append(Integer.toString((byteData[i] & 0xff) + 0x100, 16).substring(1)); } ...
it stores its meta data in the header before any comment is possible, so there can't be a generic prefix for all GIF files. if the file has a global palette, it is also stored before a comment is possible too. its comment chunks are limited to a single byte in length, so a maximu...