Diffie-Hellman Algorithm for Securing Medical Record Data Encryption keys

Data security is an issue that must be a concern in the current era of information technology. Medical data in the form of medical digital images is also important data to protect its security. This is to avoid being used by irresponsible parties. This data security can apply data encryption. The application of this encryption is by developing a medical digital image security that uses a combination of the advanced encryption standard (AES) algorithm in the data encryption process and the Diffie-Hellman algorithm in the key exchange process to maintain the security and confidentiality of medical images. The AES algorithm is used in the encryption and decryption process, while the Diffie-Hellman algorithm is used to secure the key of the AES algorithm. The results of this research showed that the combination of AES and Diffie-Hellman algorithms succeeded in securing medical images. Diffie-Hellman algorithm will generate different keys which are then used as AES keys. In this research, the Diffie-Hellman algorithm will produce a key which will be combined with the encryption key from the AES algorithm. In addition, the Diffie-Hellman algorithm is used for security in the exchange process and key generation.