@SuppressWarnings("unchecked") @Override public JSONObject getCreateBody() throws FxAccountClientException { final JSONObject body = new JSONObject(); try { body.put("email", FxAccountUtils.bytes(email)); } catch (UnsupportedEncodingException e) { throw new FxAccountClientException(e); } final JSONObject stretching = new JSONObject(); stretching.put("type", "PBKDF2/scrypt/PBKDF2/v1"); stretching.put("PBKDF2_rounds_1", 20000); stretching.put("scrypt_N", 65536); stretching.put("scrypt_r", 8); stretching.put("scrypt_p", 1); stretching.put("PBKDF2_rounds_2", 20000); stretching.put("salt", mainSalt); body.put("passwordStretching", stretching); final JSONObject srp = new JSONObject(); srp.put("type", "SRP-6a/SHA256/2048/v1"); srp.put("verifier", FxAccountUtils.hexModN(v, SRPConstants._2048.N)); srp.put("salt", srpSalt); body.put("srp", srp); return body; }