The current and future world is data world in a citizen's life; because data only decides one's existence in the world. Especially, data is more available in government, hospital, social media and, etc. This data does not have good security, due to which hackers can hack the data very easily. To address this problem, we are applying a new method namely KRB02. This method has four processes. The first process is applying for T-test technique and 0th matrix value start from end, followed by swap of the values in matrix; the second process is applying for odd operations; the third process is applying for even operations, and final process is applying for column operations. The KRB02 method gives high security, while compared to ChaCha method.