Enhancing security on E-health private data using SHA-512

Health information data is the only thing to know by doctors and the hospital, if the patient's medical record information is disseminated it can cause adverse effects for the patient. This study aims to analyze the impact of MITM (Man In The Middle) attacks on patient privacy data. Data is sent and attacked by MITM active attack method. The experimental results show that the unprotected data and the MD5-protected data are able to be successfully modified within 3 minutes and 2 minutes and 4.2 seconds respectively. The experimental data on the comparison of security mechanisms between MD5 and SHA512, indicates that for SHA512, the attacker can only do a phishing password but can not modify the data. As for MD5, in addition to phishing password and then steal the data, the attacker is also able to read and modify data with a minimum of 9 characters of data characters in 3 minutes 3 seconds, the rest of the data still can not be cracked / burglarized so it can not be modified.