Use SHA-256 hashes for fingerprinting.

[Sone.git] / src / main / java / net / pterodactylus / sone / data / Image.java

diff --git a/src/main/java/net/pterodactylus/sone/data/Image.java b/src/main/java/net/pterodactylus/sone/data/Image.java
index e50405f..952d540 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/data/Image.java
+++ b/src/main/java/net/pterodactylus/sone/data/Image.java
@@ -23,6 +23,9 @@ import static com.google.common.base.Preconditions.checkState;
 
 import java.util.UUID;
 
+import com.google.common.hash.Hasher;
+import com.google.common.hash.Hashing;
+
 /**
  * Container for image metadata.
  *
@@ -296,13 +299,13 @@ public class Image implements Fingerprintable {
         */
        @Override
        public String getFingerprint() {
-               StringBuilder fingerprint = new StringBuilder();
-               fingerprint.append("Image(");
-               fingerprint.append("ID(").append(id).append(')');
-               fingerprint.append("Title(").append(title).append(')');
-               fingerprint.append("Description(").append(description).append(')');
-               fingerprint.append(')');
-               return fingerprint.toString();
+               Hasher hash = Hashing.sha256().newHasher();
+               hash.putString("Image(");
+               hash.putString("ID(").putString(id).putString(")");
+               hash.putString("Title(").putString(title).putString(")");
+               hash.putString("Description(").putString(description).putString(")");
+               hash.putString(")");
+               return hash.hash().toString();
        }
 
        //