Firts commit

1 files changed, 32 insertions, 0 deletions

diff --git a/CVE-2015-2141.patch b/CVE-2015-2141.patch
new file mode 100644
index 000000000000..32c5164609e9
--- /dev/null
+++ b/CVE-2015-2141.patch
@@ -0,0 +1,32 @@
+From 9425e16437439e68c7d96abef922167d68fafaff Mon Sep 17 00:00:00 2001
+From: Jeffrey Walton <noloader@gmail.com>
+Date: Sat, 27 Jun 2015 17:56:01 -0400
+Subject: [PATCH] Fix for CVE-2015-2141. Thanks to Evgeny Sidorov for
+ reporting. Squaring to satisfy Jacobi requirements suggested by JPM.
+
+---
+ rw.cpp | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/rw.cpp b/rw.cpp
+index cdd9f2d..0b9318b 100644
+--- a/rw.cpp
++++ b/rw.cpp
+@@ -126,10 +126,16 @@ Integer InvertibleRWFunction::CalculateInverse(RandomNumberGenerator &rng, const
+ 	DoQuickSanityCheck();
+ 	ModularArithmetic modn(m_n);
+ 	Integer r, rInv;
+-	do {	// do this in a loop for people using small numbers for testing
++
++	// do this in a loop for people using small numbers for testing
++	do {
+ 		r.Randomize(rng, Integer::One(), m_n - Integer::One());
++		// Fix for CVE-2015-2141. Thanks to Evgeny Sidorov for reporting.
++		// Squaring to satisfy Jacobi requirements suggested by JPM.
++		r = modn.Square(r);
+ 		rInv = modn.MultiplicativeInverse(r);
+ 	} while (rInv.IsZero());
++
+ 	Integer re = modn.Square(r);
+ 	re = modn.Multiply(re, x);			// blind
+