hi ..how can i calculate the strength of digital signature application or tp proof that it is secure?

Hi I made a digital signature application using Jbuilder X ,but the thing which i need is for example in my application i have two stages:
Signing the message
Verification stage(to be sure that the...

Hi i have a java aplication to make a digital Signature ,i need to connect it with outlook express how can i do that???
iam using Jbuilder X...

Hi plz if i have a text file file1.txt contains for example:
Hi Bob ?
How are You?
I need to meet u.
See u Bye

and i need to copy this file contents to another file but without line separator...

there is no separator in any text file but when i append them together i get a line separator betwen them and i dont need this plz any help???u can see my code up and tell me wut to do??

Hi I could get the right result for using the Substring and getting the last four characters but no body gave me the solution for appending my two text files ,i dont need the two strings in the two...

Any Help Plzzzzzz.........

ok i will give my full source code for this Class in order you can help me in my Problem..
iam looking to implement digital signature and this class is responsible for appending the message to the...

hi how could this happen if my message was as following:
5113350515586806264156901277970003516182249744328267808527911381008517422384937086806339111024080220
and it prints it ...so the last four...

:sad: Hi ,I have a text file and it contains a message ,I want to extract the last four characters in this file and then convert it to integer i did the following:
FileInputStream...

ok i got it and finally i wrote this code:
import java.io.*;

public class append_files {
public static void main(String[] args) throws IOException {
try {
// create writer for file to append...

hi to all...
Plz i wnt a valuable code to append two text files in java i tried alot using WriteBuffered and FileOutputStream(file,true) but without any use i wrote the following code:
import...