Remove mpz, rotor
diff --git a/Misc/cheatsheet b/Misc/cheatsheet
index 487949a..525772d 100644
--- a/Misc/cheatsheet
+++ b/Misc/cheatsheet
@@ -2073,8 +2073,7 @@
* 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