WADH VALUE - UIDAI EKYC

  Introduction In UIDAI ecosystem, for ekyc transaction, WADH value is necessary to be passed in CAPTURE request of RD (Registered Device) service. This WADH Value will be incorporated by RD Service while generating encrypted PID block after successful capture of biometric (Finger or Iris). Supply WADH to RD Service is responsibility of consumer application and so, WADH value need to be calculated at consumer application side. Background To understand parameters and formation of WADH value, you need to first refer document of UIDAI EKYC API 2.5 where several request parameters has been explained those are used while calculating WADH value. Let understand those parameters first as below: ver => Aadhaar  KYC API version. ra => Resident authentication type. rc => Represents   resident’s  explicit consent. lr => Flag  indicating  if  AUA  application  require  local  language  data  in addi...