[project @ moraes-20021101013422-4183169bb5ae0427]

[project @ 2002-10-31 17:34:22 by moraes]
Move the /dev/urandom read into a _randomize function
in RandomPool.

Added randomize function which calls _randomize (randomize
gets overloaded by Keyboard), but user can now call
randomize on any RandomPool derived class to get more
entropy from whatever source the class uses.  randomize(N)
tries to get N bytes of entropy from the source (if N is 0,
randomize will 'fill up' the pool's entropy to the number of
bits in the pool)

Added src/winrand.c for Crypto.Util.winrandom and now use
winrandom for _randomize if possible.

Stir the pool after a randomize, just to reduce
predictability further.

add_event now returns the number of estimated bits
of added entropy, rather than the pool entropy itself
(since the pool entropy is capped at the number of
bits in the pool)

Modify stir() to take optional string which is added to the
hash input. Added stir_n() to stir several times and use
that instead of multiple calls to stir.

Stir persistent data from file into pool rather than just
using addBytes, provides some future secrecy.

Stir the pool before and after a save, so that someone who
can read the pool cannot easily guess the seed.

Moved termios code from KeyboardRandomPool into a
KeyboardEntry class, provided a version for Windows using
msvcrt.

Extended main() to test some of the other classes
(Keyboard, Persistent)

Noticed a few lines indented with TABs rather than spaces
(as was the rest of the file), so I made those consistent.

Updated ChangeLog.

1 files changed, 23 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 84f890c..883dc56 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,27 @@
 
+	Many randpool changes.  RandomPool now has a
+	randomize(N:int) method that can be called to get N
+	bytes of entropy for the pool (N defaults to 0,
+	which 'fills up' the pool's entropy) KeyboardRandom
+	overloads this method.
+
+	Added src/winrand.c for Crypto.Util.winrandom and
+	now use winrandom for _randomize if possible.
+	(Calls Windows CryptoAPI CryptGenRandom)
+
+	Several additional places for stirring the pool,
+	capturing inter-event entropy when reading/writing,
+	stirring before and after saves.
+
+	RandomPool.add_event now returns the number of
+	estimated bits of added entropy, rather than the
+	pool entropy itself (since the pool entropy is
+	capped at the number of bits in the pool)
+
+	Moved termios code from KeyboardRandomPool into a
+	KeyboardEntry class, provided a version for Windows
+	using msvcrt.
+
 1.9alpha5
 =========