@@ -23,10 +23,12 @@
 #import "OFSHA224Or256Hash.h"
 #import "OFSecureData.h"
 
 #import "OFHashAlreadyCalculatedException.h"
 #import "OFOutOfRangeException.h"
+
+#define BLOCK_SIZE 64
 
 @interface OFSHA224Or256Hash ()
 - (void)of_resetState;
 @end
 
@@ -123,11 +125,11 @@
 	OF_UNRECOGNIZED_SELECTOR
 }
 
 + (size_t)blockSize
 {
-	return 64;
+	return BLOCK_SIZE;
 }
 
 + (instancetype)cryptoHash
 {
 	return [[[self alloc] init] autorelease];
@@ -165,10 +167,20 @@
 {
 	[_iVarsData release];
 
 	[super dealloc];
 }
+
+- (size_t)digestSize
+{
+	OF_UNRECOGNIZED_SELECTOR
+}
+
+- (size_t)blockSize
+{
+	return BLOCK_SIZE;
+}
 
 - (id)copy
 {
 	OFSHA224Or256Hash *copy = [[[self class] alloc] of_init];