Studi Pengamanan Login Pada Sistem Informasi Akademik Menggunakan Otentifikasi One Time Password Berbasisis SMS dengan Hash MD5

Abstract

Login security to access the web-based Academic Information System, would be secure using OTP (One Time Password) that raised the MD5 hash that generates a code via SMS to authenticate. OTP application uses input to the MD5 hash of the student table is taken NIM field, cellular number, and access times. The result of the hash function produces a 32 digit hexadecimal number, then replace letters with numbers in them if found. Furthermore, taken six digits of the number. Six numbers are sent as OTP with Gammu application services such as SMS and also stored in the table. OTP is sent to the user will be matched with stored in the table to check its validity. If the match between the OTP sent to that stored in the table, then the user can only access the Academic Information System (SIAKAD). OTP is generated for security authentication SIAKAD after user login by entering your username and password. Time Off for login security with SMS-based OTP for three minutes, the limitation is to narrow the time hackers to tap and infiltrate. In addition, according to the trials that have been done by some service provider in Indonesia.