git.librecmc.org Git - oweals/tinc.git/commit

author	Guus Sliepen <guus@tinc-vpn.org>
	Mon, 26 Oct 2015 12:46:30 +0000 (13:46 +0100)
committer	Guus Sliepen <guus@tinc-vpn.org>
	Mon, 26 Oct 2015 12:46:30 +0000 (13:46 +0100)
commit	7a8515112a4bf94da3cec157ada6e0794a03b946
tree	cf1a41a615756f77e424e80ce208a98f7d28722a	tree \| snapshot
parent	73068238436d8a22abb86e67b08f573b09fd04e1	commit \| diff

Avoid undefined behavior.

Left shifts of negative values is undefined in C. This happens a lot in
the Ed25519 code. Cast to unsigned first, then cast the result back to
signed where necessary.

src/ed25519/fe.c		diff \| blob \| history
src/ed25519/fixedint.h		diff \| blob \| history
src/ed25519/ge.c		diff \| blob \| history
src/ed25519/sc.c		diff \| blob \| history

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