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5.7

Decipher DES Encryption

Asked by chinhw in Java Programming Language

Tags: DES Encryption

Hi all,

I have an encryption source code written in C++. The person who wrote the program has left.
Now, I need to have an equivalent encryption in Java.

From the code, it seems to be using DES encryption. (There is function named DES).
I also think that ECB cipher mode is used because I only need to provide the key and the string to encrypt into the function. I need not provide an initialization vector.
For now, I skip the question on the padding schema by providing an 8 character string to encrypt.

Can anyone teach me how I would be able to find out if indeed ECB mode is used? If not, what is the cipher mode used and the initialization vector.

Rewriting the entire C++ code into Java is not an option.

Thanks.

[+][-]11/03/09 12:59 AM, ID: 25727094Accepted Solution

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About this solution

Zone: Java Programming Language
Tags: DES Encryption
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Solution Provided By: TomasHelgi
Participating Experts: 1
Solution Grade: B
 
 
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