diff --git a/scripts/get-FA-code b/scripts/get-FA-code
new file mode 100755
index 0000000..a3d67a3
--- /dev/null
+++ b/scripts/get-FA-code
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+sha256sum $1 | awk '{print $1}' | xxd -r -p | base64 | sed 's/+/-/g' | sed 's|/|_|g' | sed 's/=$//' | sed 's/^/FA/'
\ No newline at end of file
diff --git a/src/main/java/net/trustyuri/file/FileModule.java b/src/main/java/net/trustyuri/file/FileModule.java
index 62c77fb..c234293 100644
--- a/src/main/java/net/trustyuri/file/FileModule.java
+++ b/src/main/java/net/trustyuri/file/FileModule.java
@@ -1,5 +1,6 @@
 package net.trustyuri.file;
 
+import java.io.BufferedInputStream;
 import java.io.File;
 import java.io.IOException;
 
@@ -28,7 +29,7 @@ public int getDataPartLength() {
 	@Override
 	public boolean hasCorrectHash(TrustyUriResource r) throws IOException {
 		FileHasher hasher = new FileHasher();
-		String ac = hasher.makeArtifactCode(r.getInputStream());
+		String ac = hasher.makeArtifactCode(new BufferedInputStream(r.getInputStream()));
 		return r.getArtifactCode().equals(ac);
 	}
 
diff --git a/src/main/java/net/trustyuri/file/ProcessFile.java b/src/main/java/net/trustyuri/file/ProcessFile.java
index fb295a8..92296e3 100644
--- a/src/main/java/net/trustyuri/file/ProcessFile.java
+++ b/src/main/java/net/trustyuri/file/ProcessFile.java
@@ -1,5 +1,6 @@
 package net.trustyuri.file;
 
+import java.io.BufferedInputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
@@ -15,7 +16,7 @@ public static void main(String[] args) throws IOException {
 	public static void process(File file) throws IOException {
 		String filename = file.getName();
 		FileHasher hasher = new FileHasher();
-		String ac = hasher.makeArtifactCode(new FileInputStream(file));
+		String ac = hasher.makeArtifactCode(new BufferedInputStream(new FileInputStream(file)));
 		String ext = "";
 		String base = filename;
 		if (filename.matches(".+\\.[A-Za-z0-9\\-_]{0,20}")) {