1 files changed, 18 insertions, 3 deletions
diff --git a/src/SHA256.c b/src/SHA256.c
index 8cc3265..9473abc 100644
--- a/src/SHA256.c
+++ b/src/SHA256.c
@@ -26,13 +26,28 @@
  * ===================================================================
  *
  */
-#define MODULE_NAME _SHA256
-#define ALGORITHM_NAME "SHA256"
+#define MODULE_NAME SHA256
 #define DIGEST_SIZE (256/8)
 #define BLOCK_SIZE (512/8)
 #define WORD_SIZE 4
 #define SCHEDULE_SIZE 64
- 
+
+static char MODULE__doc__[] =
+    "SHA-256 cryptographic hash algorithm.\n"
+    "\n"
+    "SHA-256 belongs to the SHA-2_ family of cryptographic hashes.\n"
+    "It produces the 256 bit digest of a message.\n"
+    "\n"
+    "    >>> from Crypto.Hash import SHA256\n"
+    "    >>>\n"
+    "    >>> h = SHA256.new()\n"
+    "    >>> h.update(b'Hello')\n"
+    "    >>> print h.hexdigest()\n"
+    "\n"
+    "*SHA* stands for Secure Hash Algorithm.\n"
+    "\n"
+    ".. _SHA-2: http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf\n";
+
 #include "hash_SHA2.h"
 
 /* Initial Values H */