In the paper digest algorithm used is SHA-1 as the message digest algorithm and encryption algorithms
used are lightweight RSA algorithm with variable key sizes of 1024 bits, input plaintext 1KB, 3DES algorithm
with variable key length 1024 is used and also AES algorithm with variable key length 256 is used for
comparison with RSA and 3DES. I will propose and try to implement the improved solution model to this
problem which will provide the greater security and efficiency to the model with the suitable key length with the
different algorithms discussed above.