Blockchain Based PKI Verification System

Abstract

Our goal is to create a blockchain system for ensure keep anonymity safe and preserve user’s security. Security in this area gains importance as the developments in this area continue rapidly and it is thought that the financial flow of the future will flow over blockchain systems. Our purpose is to make a system that will be supported by a PKI based on this blockchain systems. In a short way, PKI for managing security through encryption. PKI certificates verify the owner of a private key and the authenticity of that relationship going forward to help maintain security. Our project uses that kind of security for protecting users’ identification information while they are using blockchain technologies and keep their anonymity safe. This project will bring innovation to this subject and combine the blockchain structure with PKI. With this structure, we will establish a system that is more suitable for everyone, meeting in the middle, while preserving its good aspects such as anonymity. Briefly, users who sharing their personal information with a third company by processing this shared information securely, a special signature is generated for users only. Being able to certify themselves with these produced signatures.

Used Techonologies

Front-End: Dart, HTML, CSS, JavaScript

Back-End: SpringBoot, CRUD Structure, RestFulAPI

APIs

  GET /users

Explanation
Returns all users.

  GET /users/${id}

Parameter	Type	Explanation
`id`	`String`	Returns the user with specified id.

  GET /users/data/${id}

Parameter	Type	Explanation
`id`	`String`	Returns the user data information with specified id.

  GET /users/verification/${id}

Parameter	Type	Explanation
`id`	`String`	Returns the user verification information with specified id.

  GET /users/kyc/${id}

Parameter	Type	Explanation
`id`	`String`	Returns the user KYC information with specified id.

  GET /users/keypair/${id}

Parameter	Type	Explanation
`id`	`String`	Returns the user keypair information with specified id.

  GET /users/kyc/${id}

Parameter	Type	Explanation
`id`	`String`	Returns the user KYC information with specified id.

  GET /generate/keypair/${id}

Parameter	Type	Explanation
`id`	`String`	Generates keypair.

  GET /checkkycwithid/${id}

Parameter	Type	Explanation
`id`	`String`	Check user's KYC data with specified id.

  GET /findbywalletid/${walletid}

Parameter	Type	Explanation
`walletid`	`String`	Checks the signature is avaible for specified wallet_id.

  GET /walletverify/${id}

Parameter	Type
`address`	`String`
`birthdate`	`String`
`firstname`	`String`
`lastname`	`String`
`kyc_id`	`String`
`gender`	`String`
`phonenumber`	`String`
`public_address`	`String`

  POST /subs

Parameter	Type
`username`	`String`
`password`	`String`

  POST /auth

Parameter	Type
`username`	`String`
`password`	`String`

  POST data/subs/${id}

Parameter	Type
`firstname`	`String`
`lastname`	`String`
`country`	`String`
`phone`	`String`

  POST verification/subs/${id}

Parameter	Type
`phoneVerification`	`boolean`
`emailVerification`	`boolean`
`kycVerification`	`boolean`

  POST data/subs/${id}

Parameter	Type
`firstname`	`String`
`lastname`	`String`
`country`	`String`
`phone`	`String`

  POST kyc/subsphoto/${id}

Parameter	Type
`file`	`MultipartFile`
`address`	`String`
`birthdate`	`String`
`file_2`	`MultipartFile`
`file_3`	`MultipartFile`
`firstName`	`String`
`lastName`	`String`
`identityNumber`	`String`
`gender`	`String`
`phoneNumber`	`String`

  POST users/createsignature/${id}

Parameter	Type
`wallet_id`	`String`

  PUT users/${id}

Parameter	Type
`username`	`String`
`password`	`String`

  PUT users/data/${id}

Parameter	Type
`firstname`	`String`
`lastname`	`String`
`country`	`String`
`phone`	`String`

  PUT users/verification/${id}

Parameter	Type
`phoneVerification`	`boolean`
`emailVerification`	`boolean`
`kycVerification`	`boolean`

  PUT users/subsphoto/${id}

Parameter	Type
`file`	`MultipartFile`
`address`	`String`
`birthdate`	`String`
`file_2`	`MultipartFile`
`file_3`	`MultipartFile`
`firstName`	`String`
`lastName`	`String`
`identityNumber`	`String`
`gender`	`String`
`phoneNumber`	`String`