Combination of One Time Pad Cryptography Algorithm with Generate Random Keys and Vigenere Cipher with EM2B KEY

Today, the development of information systems that focus on the use of information and communication technology is the basis for organizations to improve their competitiveness. Similarly, sending or exchanging messages is something that often happens in the world of information technology. The development of information and communication technology has triggered many parties to continue to develop the speed of sending messages, namely through the internet. Along with the development of the internet, it became a scourge for those who were haunted by worry about the security of the messages sent. The message sometimes often contains important information even very confidential and must be maintained. To maintain the security of the message, it can be done using cryptographic techniques. That is encrypting the message to be unlike the original message. In the cryptography, many algorithms are used to encrypt, including One Time Pad and Vigenere Cipher. Basically these two algorithms use the key to do encryption, for this reason, the author tries to research how to generate random keys on the One Time Pad algorithm and combined with the Vigenere Cipher algorithm with EM2B key.