diff --git a/python-crypto-64bit-unclean.patch b/python-crypto-64bit-unclean.patch
new file mode 100644
index 0000000..41486a0
--- /dev/null
+++ b/python-crypto-64bit-unclean.patch
@@ -0,0 +1,75 @@
+diff -Naur pycrypto-2.0.org/src/RIPEMD.c pycrypto-2.0/src/RIPEMD.c
+--- pycrypto-2.0.org/src/RIPEMD.c	2005-05-05 14:28:28.000000000 +0200
++++ pycrypto-2.0/src/RIPEMD.c	2005-05-05 14:39:12.000000000 +0200
+@@ -25,6 +25,8 @@
+ #include <netinet/in.h>
+ #endif
+ 
++#include <inttypes.h>
++
+ #include "Python.h"
+ 
+ #define MODULE_NAME RIPEMD
+@@ -100,11 +102,7 @@
+    }
+ 
+ typedef    unsigned char        byte;   /* unsigned 8-bit integer */
+-#ifdef __alpha__
+-typedef    unsigned int        word;   /* unsigned 32-bit integer */
+-#else
+-typedef    unsigned long        word;   /* unsigned 32-bit integer */
+-#endif
++typedef    uint32_t             word;   /* unsigned 32-bit integer */
+ typedef unsigned char   BYTE;
+ #define RMD_DATASIZE    64
+ #define RMD_DIGESTSIZE  20
+diff -Naur pycrypto-2.0.org/src/SHA256.c pycrypto-2.0/src/SHA256.c
+--- pycrypto-2.0.org/src/SHA256.c	2005-05-05 14:28:28.000000000 +0200
++++ pycrypto-2.0/src/SHA256.c	2005-05-05 14:41:37.000000000 +0200
+@@ -9,22 +9,23 @@
+  * Revised Code:  Complies to SHA-256 standard now.
+  *
+  * Tom St Denis -- http://tomstdenis.home.dhs.org
+- * */
++ * */
++#include <inttypes.h>
+ #include "Python.h"
+ #define MODULE_NAME SHA256
+ #define DIGEST_SIZE 32
+ 
+ typedef unsigned char U8;
+-typedef unsigned int U32;
++typedef uint32_t U32;
+ 
+ typedef struct {
+-    unsigned long state[8], length, curlen;
+-    unsigned char buf[64];
++     U32 state[8], length, curlen;
++     U8 buf[64];
+ }
+ hash_state;
+ 
+ /* the K array */
+-static const unsigned long K[64] = {
++static const U32 K[64] = {
+     0x428a2f98UL, 0x71374491UL, 0xb5c0fbcfUL, 0xe9b5dba5UL, 0x3956c25bUL,
+     0x59f111f1UL, 0x923f82a4UL, 0xab1c5ed5UL, 0xd807aa98UL, 0x12835b01UL,
+     0x243185beUL, 0x550c7dc3UL, 0x72be5d74UL, 0x80deb1feUL, 0x9bdc06a7UL,
+@@ -53,7 +54,7 @@
+ /* compress 512-bits */
+ static void sha_compress(hash_state * md)
+ {
+-    unsigned long S[8], W[64], t0, t1;
++    U32 S[8], W[64], t0, t1;
+     int i;
+ 
+     /* copy state into S */
+@@ -104,7 +105,7 @@
+     md->state[7] = 0x5BE0CD19UL;
+ }
+ 
+-void sha_process(hash_state * md, unsigned char *buf, int len)
++void sha_process(hash_state * md, unsigned char *buf, U32 len)
+ {
+     while (len--) {
+         /* copy byte */
diff --git a/python-crypto.spec b/python-crypto.spec
index 0a86db0..b6ce82f 100644
--- a/python-crypto.spec
+++ b/python-crypto.spec
@@ -4,12 +4,13 @@
 Summary:	Cryptography library for Python
 Name:		python-crypto
 Version:	2.0
-Release:	3
+Release:	4
 License:	Python License (CNRI Python License)
 Group:		Development/Libraries
 URL:		http://www.amk.ca/python/code/crypto.html
 Source:		http://www.amk.ca/files/python/crypto/pycrypto-2.0.tar.gz
 Patch0:		%{name}-x86_64-buildfix.patch
+Patch1:		%{name}-64bit-unclean.patch
 BuildRequires:	python >= 2.2
 BuildRequires:	python-devel >= 2.2
 BuildRequires:	gmp-devel >= 4.1
@@ -27,6 +28,7 @@ etc.).
 %ifarch x86_64
 %patch0 -b .patch0
 %endif
+%patch1 -b .patch1 -p 1
 
 # The build section.
 %build
@@ -76,6 +78,9 @@ rm -rf $RPM_BUILD_ROOT
 %dir %{python_sitearch}/Crypto/Util/
 
 %changelog
+* Thu May 05 2005 Thorsten Leemhuis <fedora at leemhuis dot info> - 0:2.0-4
+- add python-crypto-64bit-unclean.patch (#156173)
+
 * Mon Mar 21 2005 Seth Vidal <skvidal at phy.duke.edu> - 0:2.0-3
 - iterate release for build on python 2.4 based systems