What causes this problem of getting Unauthorized when trying to delete a device from azure IoT hub using the DPS:
Documentation for delete operation using DPS in azure iot hub
I tried deprovision device but also getting error 401 or 405. What is the format for the sas token which is used in the authorization header:
Code which generate the sas token:
public String buildSasToken1(String deviceId) throws SecurityProviderException {
String keyValue = Utils.getKeyValue(deviceId, iotConfig.getSymmetricKey());
Long expiry = getExpiry(iotConfig.getExpiry());
try {
String dpsUrl=iotConfig.getHubUrl1();
String targetUri = URLEncoder.encode(dpsUrl.toLowerCase(), StandardCharsets.UTF_8.name());
String toSign = targetUri + "\n" + expiry;
byte[] keyBytes = Base64.decodeBase64Local(keyValue.getBytes("UTF-8"));
SecretKeySpec signingKey = new SecretKeySpec(keyBytes, "HmacSHA256");
Mac mac = Mac.getInstance("HmacSHA256");
mac.init(signingKey);
byte[] rawHmac = mac.doFinal(toSign.getBytes("UTF-8"));
String signature = URLEncoder.encode(Base64.encodeBase64StringLocal(rawHmac), "UTF-8");
String token = String.format(iotConfig.getTokenFormat(), targetUri, signature, expiry)+"&skn=provisioningserviceowner";
log.info("TOKEN "+token);
return token;
} catch (Exception e) {
log.info(e.getMessage());
throw new RuntimeException(e);
}
}
I attach pictures which are showing the request in PostMan:
