如何应用SHA-512？

Question

在加密方面，我是New蜜蜂，我试图创建SHA-512来将这个变量数据转换成SHA-512，这样我就可以在我的项目中将它传递到服务器中，任何帮助都将不胜感激。

if (pojo.getAmount() != null && !pojo.getAmount().equals("")) {

           //Data variables needs to convert in SHA-512
           hsString = merchantID + "" +  "" + req_id + "" + ip_address + ""
                   + notication_url + "" + package_name + "" + firstname + "" + lastname + ""
                   + middlename + "" + address1 + "" + address2 + "" + city + "" + state + ""
                   + country + "" + zip + "" + email + "" + phone + "" + client_ip + "" + ""
                   + cost + "" + currency + "" + secur3d + "" + merchantKey;

           //base64string one of the transaction parameters
            base64_enconded = Base64.encodeToString(hsString.getBytes(),Base64.DEFAULT);

Answer 1

您可以在java中使用MessageDigest进行加密。

描述- https://developer.android.com/reference/java/security/MessageDigest.html

支持算法

1. MD2
2. MD5
3. 沙一
4. 沙-256
5. 沙三八四
6. 沙-512

试试这段代码

try {
    MessageDigest md = MessageDigest.getInstance("SHA-512");
    byte[] data = md.digest(hsString.getBytes());
    StringBuilder sb = new StringBuilder();
    for(int i=0;i<data.length;i++)
    {
        sb.append(Integer.toString((data[i] & 0xff) + 0x100, 16).substring(1));
    }
    System.out.println(sb);

 } catch(Exception e) {
    System.out.println(e); 
 }