@@ -131,10 +131,20 @@
 @implementation OFSHA1Hash
 + SHA1Hash
 {
 	return [[[self alloc] init] autorelease];
 }
+
++ (size_t)digestSize
+{
+	return 20;
+}
+
++ (size_t)blockSize
+{
+	return 64;
+}
 
 - init
 {
 	self = [super init];