1 files changed, 9 insertions, 3 deletions
diff --git a/src/crypto/sha2.h b/src/crypto/sha2.h
index 001bfc647c..088d5e194c 100644
--- a/src/crypto/sha2.h
+++ b/src/crypto/sha2.h
@@ -16,9 +16,11 @@ private:
     size_t bytes;
 
 public:
+    static const size_t OUTPUT_SIZE = 32;
+
     CSHA256();
     CSHA256& Write(const unsigned char *data, size_t len);
-    void Finalize(unsigned char *hash);
+    void Finalize(unsigned char hash[OUTPUT_SIZE]);
     CSHA256& Reset();
 };
 
@@ -30,9 +32,11 @@ private:
     size_t bytes;
 
 public:
+    static const size_t OUTPUT_SIZE = 64;
+
     CSHA512();
     CSHA512& Write(const unsigned char *data, size_t len);
-    void Finalize(unsigned char *hash);
+    void Finalize(unsigned char hash[OUTPUT_SIZE]);
     CSHA512& Reset();
 };
 
@@ -43,12 +47,14 @@ private:
     CSHA512 inner;
 
 public:
+    static const size_t OUTPUT_SIZE = 64;
+
     CHMAC_SHA512(const unsigned char *key, size_t keylen);
     CHMAC_SHA512& Write(const unsigned char *data, size_t len) {
         inner.Write(data, len);
         return *this;
     }
-    void Finalize(unsigned char *hash);
+    void Finalize(unsigned char hash[OUTPUT_SIZE]);
 };
 
 #endif