e-KYC OTP Verification

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You need to encrypt the aadhaar before passing it as a parameter.

Aadhaar Encryption -

1. Decode public key using base64 encoding technique. (public key for UAT and production are different)
2. Compute RSA encrypted signature using decoded key and message.
3. Encode encrypted signature with base64 encoding to send message on API.

Public Key for Aadhaar Encryption - (UAT)

MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCaFyrzeDhMaFLx+LZUNOOO14Pj9aPfr+1WOanDgDHxo9NekENYcWUftM9Y17ul2pXr3bqw0GCh4uxNoTQ5cTH4buI42LI8ibMaf7Kppq9MzdzI9/7pOffgdSn+P8J64CJAk3VrVswVgfy8lABt7fL8R6XReI9x8ewwKHhCRTwBgQIDAQAB

public static String calculateRSA( String salt ) throws InvalidKeyException, Exception {

Cipher encryptCipher = Cipher.getInstance("RSA");
encryptCipher.init(Cipher.ENCRYPT_MODE, getPublicKey());
byte[] secretMessageBytes = salt.getBytes("UTF-8");
byte[] encryptedMessageBytes = encryptCipher.doFinal(secretMessageBytes);
String encodedMessage = Base64.encodeBase64String(encryptedMessageBytes);
return encodedMessage;
}
public static PublicKey getPublicKey() throws Exception {
String rawPublicKey = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCXa63O/UXt5S0Vi8DM/PWF4yugx2OcTVbcFPLfXmLm9ClEVJcRuBr7UDHjJ6gZgG/qcVez5r6AfsYl2PtKmYP3mQdbR/BjVOjnrRooXxwyio6DFk4hTTM8fqQGWWNm6XN5XsPK5+qD5Ic/L0vGrS5nMWDwjRt59gzgNMNMpjheBQIDAQAB";
byte[] keyBytes = Base64.decodeBase64(rawPublicKey);
X509EncodedKeySpec spec = new X509EncodedKeySpec(keyBytes);
KeyFactory kf = KeyFactory.getInstance("RSA");
return kf.generatePublic(spec);// generatePrivate(spec);
}

EKYC Steps -

1. For service_code = 43, it is mandatory to use e-KYC OTP request, e-KYC OTP Verification and Biometric before AePS transaction.
   Please make sure you use these APIs consecutively.
2. For service_code = 52, you just have to use e-KYC using Biometric only with ekyc_flag param = 1.
3. The whole process of e-KYC is to be done for every merchant just once.
4. For both of these services, Daily authentication i.e. 2FA is mandatory and to be done everyday.

Response Error Codes