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MD5 encryption using java
In this tutorial we will learn how to create md5 hash in java. To create md5 hash in java we need follow below steps.
- Import java.math.BigInteger.
- Import java.security.MessageDigest.
- Import java.security.NoSuchAlgorithmException.
- Create MessageDigest object for MD5
- Update input string in message digest
- Converts message digest value in base16 (hex)
- If md5 generated successfully return md5 string else show an exception.
Below is the example class for java to generate md5 hash
package yourpackage;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/**
*
*
*/
public class Encrypt {
public static String md5(String input) {
String md5 = null;
if (null == input) {
return null;
}
try {
MessageDigest digest = MessageDigest.getInstance("MD5");
digest.update(input.getBytes(), 0, input.length());
md5 = new BigInteger(1, digest.digest()).toString(16);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
return md5;
}
}
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