private String genAppSign(List<NameValuePair> params) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < params.size(); i++) {
sb.append(params.get(i).getName());
sb.append('=');
sb.append(params.get(i).getValue());
sb.append('&');
}
sb.append("key=");
sb.append(Constants.API_KEY);
String appSign = MD5.getMessageDigest(sb.toString().getBytes()).toUpperCase();
Log.e("orion", appSign);
return appSign;
}
private String genNonceStr() {
Random random = new Random();
return MD5.getMessageDigest(String.valueOf(random.nextInt(10000)).getBytes());
}