International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Personal privacy is of utmost importance in the global networked world. One of the best tools to help people safeguard their personal information is the use of cryptography. The IDEA algorithm is an interesting one. It consists of a certain number of steps which, primarily, make it seem like having a non-reversible hash function in place of a block cipher. IDEA utilizes 52 sub keys, each of which is 16 bits long. Two bits are employed during each proper round while four are utilized prior to each round and after the completion of the last one. It has a total of eight rounds. The block plain text of IDEA is split into four separate 16 bit-long quarters.