Update documentation

1 files changed, 5 insertions, 3 deletions

diff --git a/cryptlib.h b/cryptlib.h
index bbd1d87e..4f723fc8 100644
--- a/cryptlib.h
+++ b/cryptlib.h
@@ -1129,9 +1129,11 @@ public:
 	unsigned int TagSize() const {return DigestSize();}

 

 	/// \brief Provides the block size of the compression function

-	/// \return the block size of the compression function, in bytes

-	/// \details BlockSize() will return 0 if the hash is not block based. For example,

-	///   SHA3 is a recursive hash (not an iterative hash), and it does not have a block size.

+	/// \return block size of the compression function, in bytes

+	/// \details BlockSize() will return 0 if the hash is not block based

+	///   or does not have an equivalent block size. For example, Keccak

+	///   and SHA-3 do not have a block size, but they do have an equivalent

+	///   block size called rate expressed as <tt>r</tt>.

 	virtual unsigned int BlockSize() const {return 0;}

 

 	/// \brief Provides the input block size most efficient for this hash.