MessageDigest getDigestLength() method in Java with Examples
The getDigestLength() method of MessageDigest class is used to get the size of object of message digest object in bytes.
Syntax:
public final int getDigestLength()
Return Value: This method provides the length of the message digest in byte form.
Below are the examples to illustrate the getDigestLength() method:
Example 1:
import java.security.*;
import java.util.*;
public class GFG1 {
public static void main(String[] argv)
{
try {
MessageDigest msd
= MessageDigest.getInstance( "SHA-256" , "SUN" );
int length = msd.getDigestLength();
System.out.println( "Message digest length : "
+ length);
}
catch (NoSuchAlgorithmException e) {
System.out.println( "Exception thrown : " + e);
}
catch (NoSuchProviderException e) {
System.out.println( "Exception thrown : " + e);
}
}
}
|
Output:
Message digest length : 32
Example 2:
import java.security.*;
import java.util.*;
public class GFG1 {
public static void main(String[] argv)
{
try {
MessageDigest msd
= MessageDigest.getInstance( "MD5" );
int length = msd.getDigestLength();
System.out.println( "Message digest length : "
+ length);
}
catch (NoSuchAlgorithmException e) {
System.out.println( "Exception thrown : " + e);
}
}
}
|
Output:
Message digest length : 16
Reference: https://docs.oracle.com/javase/9/docs/api/java/security/MessageDigest.html#getDigestLength–
Last Updated :
14 Oct, 2019
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