in c#
public static string HashToString(string message, byte[] key)
{
byte[] b=new HMACSHA512(key).ComputeHash(Encoding.UTF8.GetBytes(message));
return Convert.ToBase64String(b);
}
client.DefaultRequestHeaders.Add("X-Hash", hash);
var encryptedContent = DataMotion.Security.Encrypt(key, Convert.FromBase64String(iv), serializedModel);
var request = client.PostAsync(ApiUrlTextBox.Text,encryptedContent,new JsonMediaTypeFormatter());
in java:
protected String hashToString(String serializedModel, byte[] key) {
String result = null;
Mac sha512_HMAC;
try {
sha512_HMAC = Mac.getInstance("HmacSHA512");
SecretKeySpec secretkey = new SecretKeySpec(key, "HmacSHA512");
sha512_HMAC.init(secretkey);
byte[] mac_data = sha512_HMAC.doFinal(serializedModel.getBytes("UTF-8"));
result = Base64.encodeBase64String(mac_data);
}catch(Exception e){
}
}
o/p: ye+AZPqaKrU14pui4U5gBCiAbegNvLVjzVdGK3rwG9QVzqKfIgyWBDTncORkNND3DA8jPba5xmC7B5OUwZEKlQ==
i have written hashtostring method in java based on c# code. is this currect? (output is different because every time process is dynamic in both cases.)
Both java and C# code are giving same result(same hash code). You should check again.
Replace following line in java code at end
result = Base64.getEncoder().encodeToString(mac_data);