diff --git a/crypto/bn/bn_tests.txt b/crypto/bn/bn_tests.txt
index 509c760..4815141 100644
--- a/crypto/bn/bn_tests.txt
+++ b/crypto/bn/bn_tests.txt
@@ -1018,6 +1018,1606 @@
 A = -685147a1e74dab824bc6cb7fb30a773fbe5e380f46189574038d2d2f3983ced8777a080af6b06e9bb3c2d134a3302fa099b4bc78a4f01a4c157424ee3c773
 B = -f63de78e0e1f094c687a2e3367e415f4bb8e26e77b2813fbb7223a2f9783e55b515ce1b8d32adad829d7d3cf2dcd04807948ee52215253752e4d0c23930ae8a0
 
+Sum = 1
+A = 0
+B = 1
+
+Sum = 2
+A = 1
+B = 1
+
+Sum = 4
+A = 3
+B = 1
+
+Sum = 8
+A = 7
+B = 1
+
+Sum = 10
+A = f
+B = 1
+
+Sum = 20
+A = 1f
+B = 1
+
+Sum = 40
+A = 3f
+B = 1
+
+Sum = 80
+A = 7f
+B = 1
+
+Sum = 100
+A = ff
+B = 1
+
+Sum = 200
+A = 1ff
+B = 1
+
+Sum = 400
+A = 3ff
+B = 1
+
+Sum = 800
+A = 7ff
+B = 1
+
+Sum = 1000
+A = fff
+B = 1
+
+Sum = 2000
+A = 1fff
+B = 1
+
+Sum = 4000
+A = 3fff
+B = 1
+
+Sum = 8000
+A = 7fff
+B = 1
+
+Sum = 10000
+A = ffff
+B = 1
+
+Sum = 20000
+A = 1ffff
+B = 1
+
+Sum = 40000
+A = 3ffff
+B = 1
+
+Sum = 80000
+A = 7ffff
+B = 1
+
+Sum = 100000
+A = fffff
+B = 1
+
+Sum = 200000
+A = 1fffff
+B = 1
+
+Sum = 400000
+A = 3fffff
+B = 1
+
+Sum = 800000
+A = 7fffff
+B = 1
+
+Sum = 1000000
+A = ffffff
+B = 1
+
+Sum = 2000000
+A = 1ffffff
+B = 1
+
+Sum = 4000000
+A = 3ffffff
+B = 1
+
+Sum = 8000000
+A = 7ffffff
+B = 1
+
+Sum = 10000000
+A = fffffff
+B = 1
+
+Sum = 20000000
+A = 1fffffff
+B = 1
+
+Sum = 40000000
+A = 3fffffff
+B = 1
+
+Sum = 80000000
+A = 7fffffff
+B = 1
+
+Sum = 100000000
+A = ffffffff
+B = 1
+
+Sum = 200000000
+A = 1ffffffff
+B = 1
+
+Sum = 400000000
+A = 3ffffffff
+B = 1
+
+Sum = 800000000
+A = 7ffffffff
+B = 1
+
+Sum = 1000000000
+A = fffffffff
+B = 1
+
+Sum = 2000000000
+A = 1fffffffff
+B = 1
+
+Sum = 4000000000
+A = 3fffffffff
+B = 1
+
+Sum = 8000000000
+A = 7fffffffff
+B = 1
+
+Sum = 10000000000
+A = ffffffffff
+B = 1
+
+Sum = 20000000000
+A = 1ffffffffff
+B = 1
+
+Sum = 40000000000
+A = 3ffffffffff
+B = 1
+
+Sum = 80000000000
+A = 7ffffffffff
+B = 1
+
+Sum = 100000000000
+A = fffffffffff
+B = 1
+
+Sum = 200000000000
+A = 1fffffffffff
+B = 1
+
+Sum = 400000000000
+A = 3fffffffffff
+B = 1
+
+Sum = 800000000000
+A = 7fffffffffff
+B = 1
+
+Sum = 1000000000000
+A = ffffffffffff
+B = 1
+
+Sum = 2000000000000
+A = 1ffffffffffff
+B = 1
+
+Sum = 4000000000000
+A = 3ffffffffffff
+B = 1
+
+Sum = 8000000000000
+A = 7ffffffffffff
+B = 1
+
+Sum = 10000000000000
+A = fffffffffffff
+B = 1
+
+Sum = 20000000000000
+A = 1fffffffffffff
+B = 1
+
+Sum = 40000000000000
+A = 3fffffffffffff
+B = 1
+
+Sum = 80000000000000
+A = 7fffffffffffff
+B = 1
+
+Sum = 100000000000000
+A = ffffffffffffff
+B = 1
+
+Sum = 200000000000000
+A = 1ffffffffffffff
+B = 1
+
+Sum = 400000000000000
+A = 3ffffffffffffff
+B = 1
+
+Sum = 800000000000000
+A = 7ffffffffffffff
+B = 1
+
+Sum = 1000000000000000
+A = fffffffffffffff
+B = 1
+
+Sum = 2000000000000000
+A = 1fffffffffffffff
+B = 1
+
+Sum = 4000000000000000
+A = 3fffffffffffffff
+B = 1
+
+Sum = 8000000000000000
+A = 7fffffffffffffff
+B = 1
+
+Sum = 10000000000000000
+A = ffffffffffffffff
+B = 1
+
+Sum = 20000000000000000
+A = 1ffffffffffffffff
+B = 1
+
+Sum = 40000000000000000
+A = 3ffffffffffffffff
+B = 1
+
+Sum = 80000000000000000
+A = 7ffffffffffffffff
+B = 1
+
+Sum = 100000000000000000
+A = fffffffffffffffff
+B = 1
+
+Sum = 200000000000000000
+A = 1fffffffffffffffff
+B = 1
+
+Sum = 400000000000000000
+A = 3fffffffffffffffff
+B = 1
+
+Sum = 800000000000000000
+A = 7fffffffffffffffff
+B = 1
+
+Sum = 1000000000000000000
+A = ffffffffffffffffff
+B = 1
+
+Sum = 2000000000000000000
+A = 1ffffffffffffffffff
+B = 1
+
+Sum = 4000000000000000000
+A = 3ffffffffffffffffff
+B = 1
+
+Sum = 8000000000000000000
+A = 7ffffffffffffffffff
+B = 1
+
+Sum = 10000000000000000000
+A = fffffffffffffffffff
+B = 1
+
+Sum = 20000000000000000000
+A = 1fffffffffffffffffff
+B = 1
+
+Sum = 40000000000000000000
+A = 3fffffffffffffffffff
+B = 1
+
+Sum = 80000000000000000000
+A = 7fffffffffffffffffff
+B = 1
+
+Sum = 100000000000000000000
+A = ffffffffffffffffffff
+B = 1
+
+Sum = 200000000000000000000
+A = 1ffffffffffffffffffff
+B = 1
+
+Sum = 400000000000000000000
+A = 3ffffffffffffffffffff
+B = 1
+
+Sum = 800000000000000000000
+A = 7ffffffffffffffffffff
+B = 1
+
+Sum = 1000000000000000000000
+A = fffffffffffffffffffff
+B = 1
+
+Sum = 2000000000000000000000
+A = 1fffffffffffffffffffff
+B = 1
+
+Sum = 4000000000000000000000
+A = 3fffffffffffffffffffff
+B = 1
+
+Sum = 8000000000000000000000
+A = 7fffffffffffffffffffff
+B = 1
+
+Sum = 10000000000000000000000
+A = ffffffffffffffffffffff
+B = 1
+
+Sum = 20000000000000000000000
+A = 1ffffffffffffffffffffff
+B = 1
+
+Sum = 40000000000000000000000
+A = 3ffffffffffffffffffffff
+B = 1
+
+Sum = 80000000000000000000000
+A = 7ffffffffffffffffffffff
+B = 1
+
+Sum = 100000000000000000000000
+A = fffffffffffffffffffffff
+B = 1
+
+Sum = 200000000000000000000000
+A = 1fffffffffffffffffffffff
+B = 1
+
+Sum = 400000000000000000000000
+A = 3fffffffffffffffffffffff
+B = 1
+
+Sum = 800000000000000000000000
+A = 7fffffffffffffffffffffff
+B = 1
+
+Sum = 1000000000000000000000000
+A = ffffffffffffffffffffffff
+B = 1
+
+Sum = 2000000000000000000000000
+A = 1ffffffffffffffffffffffff
+B = 1
+
+Sum = 4000000000000000000000000
+A = 3ffffffffffffffffffffffff
+B = 1
+
+Sum = 8000000000000000000000000
+A = 7ffffffffffffffffffffffff
+B = 1
+
+Sum = 10000000000000000000000000
+A = fffffffffffffffffffffffff
+B = 1
+
+Sum = 20000000000000000000000000
+A = 1fffffffffffffffffffffffff
+B = 1
+
+Sum = 40000000000000000000000000
+A = 3fffffffffffffffffffffffff
+B = 1
+
+Sum = 80000000000000000000000000
+A = 7fffffffffffffffffffffffff
+B = 1
+
+Sum = 100000000000000000000000000
+A = ffffffffffffffffffffffffff
+B = 1
+
+Sum = 200000000000000000000000000
+A = 1ffffffffffffffffffffffffff
+B = 1
+
+Sum = 400000000000000000000000000
+A = 3ffffffffffffffffffffffffff
+B = 1
+
+Sum = 800000000000000000000000000
+A = 7ffffffffffffffffffffffffff
+B = 1
+
+Sum = 1000000000000000000000000000
+A = fffffffffffffffffffffffffff
+B = 1
+
+Sum = 2000000000000000000000000000
+A = 1fffffffffffffffffffffffffff
+B = 1
+
+Sum = 4000000000000000000000000000
+A = 3fffffffffffffffffffffffffff
+B = 1
+
+Sum = 8000000000000000000000000000
+A = 7fffffffffffffffffffffffffff
+B = 1
+
+Sum = 10000000000000000000000000000
+A = ffffffffffffffffffffffffffff
+B = 1
+
+Sum = 20000000000000000000000000000
+A = 1ffffffffffffffffffffffffffff
+B = 1
+
+Sum = 40000000000000000000000000000
+A = 3ffffffffffffffffffffffffffff
+B = 1
+
+Sum = 80000000000000000000000000000
+A = 7ffffffffffffffffffffffffffff
+B = 1
+
+Sum = 100000000000000000000000000000
+A = fffffffffffffffffffffffffffff
+B = 1
+
+Sum = 200000000000000000000000000000
+A = 1fffffffffffffffffffffffffffff
+B = 1
+
+Sum = 400000000000000000000000000000
+A = 3fffffffffffffffffffffffffffff
+B = 1
+
+Sum = 800000000000000000000000000000
+A = 7fffffffffffffffffffffffffffff
+B = 1
+
+Sum = 1000000000000000000000000000000
+A = ffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 2000000000000000000000000000000
+A = 1ffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 4000000000000000000000000000000
+A = 3ffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 8000000000000000000000000000000
+A = 7ffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 10000000000000000000000000000000
+A = fffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 20000000000000000000000000000000
+A = 1fffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 40000000000000000000000000000000
+A = 3fffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 80000000000000000000000000000000
+A = 7fffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 100000000000000000000000000000000
+A = ffffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 200000000000000000000000000000000
+A = 1ffffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 400000000000000000000000000000000
+A = 3ffffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 800000000000000000000000000000000
+A = 7ffffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 1000000000000000000000000000000000
+A = fffffffffffffffffffffffffffffffff
+B = 1
+
+Sum = 2000000000000000000000000000000000
+A = 1fffffffffffffffffffffffffffffffff
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+
+Sum = 4000000000000000000000000000000000
+A = 3fffffffffffffffffffffffffffffffff
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+
+Sum = 8000000000000000000000000000000000
+A = 7fffffffffffffffffffffffffffffffff
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+Sum = 10000000000000000000000000000000000
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+Sum = 20000000000000000000000000000000000
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+Sum = 40000000000000000000000000000000000
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+Sum = 80000000000000000000000000000000000
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+Sum = 100000000000000000000000000000000000
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+
+Sum = 200000000000000000000000000000000000
+A = 1fffffffffffffffffffffffffffffffffff
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+Sum = 400000000000000000000000000000000000
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+Sum = 800000000000000000000000000000000000
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+Sum = 1000000000000000000000000000000000000
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+Sum = 2000000000000000000000000000000000000
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+Sum = 4000000000000000000000000000000000000
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+Sum = 8000000000000000000000000000000000000
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+Sum = 10000000000000000000000000000000000000
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+Sum = 20000000000000000000000000000000000000
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+Sum = 40000000000000000000000000000000000000
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+Sum = 80000000000000000000000000000000000000
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+Sum = 100000000000000000000000000000000000000
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+Sum = 200000000000000000000000000000000000000
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+Sum = 400000000000000000000000000000000000000
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+Sum = 800000000000000000000000000000000000000
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+Sum = 1000000000000000000000000000000000000000
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+Sum = 2000000000000000000000000000000000000000
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+Sum = 4000000000000000000000000000000000000000
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+Sum = 8000000000000000000000000000000000000000
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+Sum = 10000000000000000000000000000000000000000
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+Sum = 20000000000000000000000000000000000000000
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+Sum = 40000000000000000000000000000000000000000
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+Sum = 80000000000000000000000000000000000000000
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+Sum = 100000000000000000000000000000000000000000
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+Sum = 200000000000000000000000000000000000000000
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+Sum = 400000000000000000000000000000000000000000
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+Sum = 800000000000000000000000000000000000000000
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+Sum = 80000000000000000000000000000000000000000000000
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+Sum = 20000000000000000000000000000000000000000000000000
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+Sum = 40000000000000000000000000000000000000000000000000
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+Sum = 100000000000000000000000000000000000000000000000000
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+Sum = 100000000000000000000000000000000000000000000000000
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+
+Sum = 100000000000000000000000000000000000000000000000000
+A = ffffffffffffffffffffffffffffffffe00000000000000000
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+Sum = 100000000000000000000000000000000000000000000000000
+A = ffffffffffffffffffffffffffffffffc00000000000000000
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+
+Sum = 100000000000000000000000000000000000000000000000000
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+Sum = 100000000000000000000000000000000000000000000000000
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+
+Sum = 100000000000000000000000000000000000000000000000000
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+B = 80000000000000000000000000000000000000000000000000
+
 
 # LShift1 tests.
 #