diff --git a/Misc/cheatsheet b/Misc/cheatsheet
index 487949a55e7..525772d7c3b 100644
--- a/Misc/cheatsheet
+++ b/Misc/cheatsheet
@@ -2073,8 +2073,7 @@ zipfile          Read & write PK zipped files.
 * Cryptographic Extensions *
 
             md5         Interface to RSA's MD5 message digest algorithm
-            mpz         Interface to int part of GNU multiple precision library
-            rotor       Implementation of a rotor-based encryption algorithm
+            sha         Interface to the SHA message digest algorithm
             HMAC        Keyed-Hashing for Message Authentication -- RFC 2104.
 
 * Stdwin * Standard Window System