How to Verify Mobile no and email id from Secure QR code of Aadhaar card

Question

Official Document for How to Read QR code data from Secure QR code of UIDAI Aadhaar card: https://uidai.gov.in/images/resource/User_manulal_QR_Code_15032019.pdf

Have

Answer 1

Just now got the solution, fetched exact mobile and email hash value from byte array

first remove last 256 bytes from byte array then,

if only mobile present then take last 32 bytes from byte array for mobile i.e. (array.length - 32 to array.length)

else if only email present then take last 32 bytes from byte array for email i.e. (array.length - 32 to array.length)

else if both email and mobile present then take last 32 bytes from byte array for mobile, take next last 32 bytes for email i.e. (mobile = array.length - 32 to array.length and email = array.length - 64 to array.length - 32)