field programmable gate array, logic blocks consist of multiplexers, flip flops look-up tables which is different for different FPGA depends on FPGA family and on the number of input and output bits in look up tables. Gate equivalent in ASICs is equivalent to the area used by two-input NAND gate and is calculated by dividing the area in m 2 by area of NAND gate. It is different for different technologies and is not easy to compare among them because it is defined for specific technology used for hardware implementation. SOFTWARE SPECIFIC METRICS The Focusing metrics in case of software implementation, are RAM consumption, size of implementation code and through put. Throughput can be defined as the rate of producing new outputs and is expressed in terms of bytes per cycle and in comparison to general cryptographic techniques, the lightweight cryptographic algorithms are not meant for high through put. RAM is used in manipulation of data that can be computations at intermediate values whereas ROM is for storing program code including fixed data. LIGHTWEIGHT CRYPTOGRAPHIC ALGORITHMS PRESENT PRESENT is one of the example of ultralight weight block cipher which uses smaller block sizes and potential for small keys like 80 bit generally consists of 31 rounds with block length of 64 bits and use>