CIPHERTEXT POLICY ATTRIBUTED BASED ENCRYPTION (CP-ABE) APPLICATION FOR COVID-19 VACCINATION DATA SECURITY

• Main Author: Indarwati Susanto, Agnes
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/69619
• Institution: Institut Teknologi Bandung

One of the policies carried out by the Indonesian government to reduce the spread of the covid-19 virus is to require vaccination for its citizens. In the implementation of vaccination, the type of available vaccine is not only one type, but there are various types. Certain types of vaccines are a requirement for travel to several countries, but in reality these types of vaccines are not easier to obtain than other types of vaccines. Therefore, there are some people who make changes to vaccination data illegally. This can happen because the vaccination data system currently used is still not safe. In this book, a new security system was created using the Ciphertext Policy Attributed Based Encryption (CP-ABE) scheme to solve the problem of illegally changing vaccination data. Ciphertext-Policy Attributed Based Encryption (CP-ABE) is a role-based control scheme, which means that only participants with certain roles can access the data. In this final project, Ciphertext Policy Attributed Based Encryption (CP-ABE) scheme is applied with the Affine Cipher. Affine Cipher is one of the simple ciphers, that's why it was chosen to create the CP-ABE scheme which is still rarely used with the aim of knowing how the CP-ABE scheme works. An access tree is also constructed as an access structure, it is contained in the encryption algorithm to ensure that only participants who can access the data have attributes that match the desired access tree. The attributes in the access tree are determined by referring to the involvement of certain parties in the process and supervision of the covid-19 vaccination, so that the attribute that must be fulfilled is one of the duties of the vaccination committee, namely registration staff, screening staff, vaccination staff, record-keeping and observation staff, and pre-registration staff, and it is also supervised by the hospital chairman or the head of the covid-19 vaccination execution, and given permission by the verifier team from Peduli Lindungi.