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Changelog entry for the negative zero from add/sub

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
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Gilles Peskine
2022-11-09 22:05:52 +01:00
parent 581c460161
commit 195e1c8107
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ChangeLog.d/negative-zero-from-add.txt Normal file
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@@ -0,0 +1,6 @@
Bugfix
* In the bignum module, operations of the form (-A) - (+A) or (-A) - (-A)
with A > 0 created an unintended representation of the value 0 which was
not processed correctly by some bignum operations. Fix this. This had no
consequence on cryptography code, but might affect applications that call
bignum directly and use negative numbers.