Information security using DES

Data or information is one element that holds a very large role in many areas of life. With the growing development of computer technology, more and more people are able to mess up even though the data has been stored neatly. To prevent theft of data by parties who are not entitled to such data, then developed various techniques to secure data. Cryptography is one technique used to improve the security aspects of a data or information. Cryptography is the science and art to maintain the confidentiality of a message or data. In this case the message will be encrypted so that messages can not be understood more meaning. The message is encrypted so that the message should didekripsikan right again. Cryptography support the needs of the two aspects of information security, namely secrecy (protection of confidential information) and authenticity (protection against counterfeiting and alteration of information that is not desired). One method is data encryption kripstografi standard (DES), the most widely used in the world. Manually DES method is very complex, to further facilitate the study of DES can be made a software that can perform DES simulation correctly.