1 files changed, 12 insertions, 2 deletions
diff --git a/paramiko/rsakey.py b/paramiko/rsakey.py
index 9db9f343..7ccf601d 100644
--- a/paramiko/rsakey.py
+++ b/paramiko/rsakey.py
@@ -22,8 +22,6 @@
 L{RSAKey}
 """
 
-import base64
-
 from Crypto.PublicKey import RSA
 from Crypto.Hash import SHA, MD5
 from Crypto.Cipher import DES3
@@ -133,6 +131,18 @@ class RSAKey (PKey):
         self._write_private_key_file('RSA', filename, str(b), password)
 
     def generate(bits, progress_func=None):
+        """
+        Generate a new private RSA key.  This factory function can be used to
+        generate a new host key or authentication key.
+
+        @param bits: number of bits the generated key should be.
+        @type bites: int
+        @param progress_func: an optional function to call at key points in
+        key generation (used by L{pyCrypto.PublicKey}).
+        @type progress_func: function
+        @return: new private key
+        @rtype: L{RSAKey}
+        """
         rsa = RSA.generate(bits, randpool.get_bytes, progress_func)
         key = RSAKey()
         key.n = rsa.n