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added an binary function

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Ziver Koc 2009-05-07 21:40:13 +00:00
parent 2627894e19
commit c53449208d
1 changed files with 26 additions and 20 deletions
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46
src/zutil/Hasher.java
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@ -14,11 +14,9 @@ public class Hasher {
/**
* Returns a hash of a file
*
* @param file The path to the file
* @param hashType The hash type
* @return A String with the hash
* @throws NoSuchAlgorithmException
* @throws IOException
* @param file is the path to the file
* @param hashType is the hash type
* @return a String with the hash
*/
public static String hash(File file, String hashType) throws NoSuchAlgorithmException, IOException {
MessageDigest digest = MessageDigest.getInstance(hashType);//"MD5"
@ -46,8 +44,8 @@ public class Hasher {
/**
* Returns the MD5 hash of the given object
*
* @param object The object to hash
* @return String containing the hash
* @param object is the object to hash
* @return an String containing the hash
*/
public static String MD5(Serializable object){
try {
@ -61,8 +59,8 @@ public class Hasher {
/**
* Returns the SHA-1 hash of the given object
*
* @param object The object to hash
* @return String containing the hash
* @param object is the object to hash
* @return an String containing the hash
*/
public static String SHA1(Serializable object){
try {
@ -76,29 +74,37 @@ public class Hasher {
/**
* Returns the hash of the given object
*
* @param object The object to hash
* @param hashType The hash method (MD2, MD5, SHA-1, SHA-256, SHA-384, SHA-512 )
* @return String containing the hash
* @throws NoSuchAlgorithmException
* @throws IOException
* @param object is the object to hash
* @param hashType is the hash method (MD2, MD5, SHA-1, SHA-256, SHA-384, SHA-512 )
* @return an String containing the hash
*/
public static String hash(Serializable object, String hashType) throws Exception {
return hash(Converter.toBytes(object), hashType);//(new BASE64Encoder()).encode(raw);
}
/**
* Hashes a given byte array
*
* @param data is the byte array to hash
* @param hashType is the hash method (MD2, MD5, SHA-1, SHA-256, SHA-384, SHA-512 )
* @return an String containing the hash
* @throws Exception
*/
public static String hash(byte[] data, String hashType) throws Exception {
MessageDigest md = null;
md = MessageDigest.getInstance(hashType); //MD5 || SHA
md.update(Converter.toBytes(object));
md.update(data);
byte raw[] = md.digest();
return Converter.toHexString(raw);//(new BASE64Encoder()).encode(raw);
}
/**
* MurmurHash2 ported from cpp source
* MurmurHash2 ported from c++ source
*
* @param object The Key
* @param seed Seed
* @param object is the Key
* @param seed is the seed
* @return A MurmurHash of the key
* @throws Exception
*/
public static int MurmurHash(Serializable object, int seed) throws Exception{
byte[] data = Converter.toBytes(object);