Performance evaluation of LSB and LSD in steganography

In this work we have implemented and discussed the performance evaluation of Least Significant Bit (LSB) and Least Significant Digit (LSD) on various formats of multimedia data. We have shown the performance variation on different formats for which these two techniques have been applied to hide the messages. Implementation of both the algorithms has been done to explore the security and distortion level in different formats. Based on the implementation and exhaustive testing of the methods on documents, it was found that they help in proper hiding of messages so that it is not recovered by the intruder during the transfer of data from sender to the receiver.