Add base::SHA1HashBytes

base/sha1.h

Index: base/sha1.h
diff --git a/base/sha1.h b/base/sha1.h
index dd4368688f183323daf0f54cad8cde6c3fde9434..21f07778353aaaec0cc39a9d3e3007a45432c9fe 100644
--- a/base/sha1.h
+++ b/base/sha1.h
@@ -20,6 +20,11 @@ enum {
 // hash.
 std::string SHA1HashString(const std::string& str);
 
+// Computes the SHA-1 hash of the |len| bytes in |data| and puts the hash
+// in |hash_array|.
+void SHA1HashBytes(const unsigned char* data, size_t len,
+                   unsigned char* hash_array);

[wtc, 2011/03/11 18:46:15]

Nit: |hash_array| can be shortened to |hash|.

Please document that |hash_array| must be SHA1_LENGTH bytes
long.

Alternatively, force the caller to specify the length of
|hash_array|:

void SHA1HashBytes(const unsigned char* data, size_t data_len,
                   unsigned char* hash, size_t hash_len);

[hans, 2011/03/13 19:48:16]

done
done

+
 }  // namespace base
 
 #endif  // BASE_SHA1_H_