Merged update from upstream sources
This is an automated DistroBaker update from upstream sources. If you do not know what this is about or would like to opt out, contact the OSCI team. Source: https://src.fedoraproject.org/rpms/nettle.git#4ef5318bc4753b255cdb423b99f2b22fb554594b
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nettle-3.7-chacha-counter-ppc64.patch
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51
nettle-3.7-chacha-counter-ppc64.patch
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From 64837b2e433e2b99b893683949bad3a99acab38f Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
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Date: Wed, 10 Feb 2021 11:22:23 +0100
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Subject: [PATCH] Fix chacha counter update for _4core variants.
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---
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ChangeLog | 4 ++++
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chacha-crypt.c | 10 +++++++---
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2 files changed, 11 insertions(+), 3 deletions(-)
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diff --git a/chacha-crypt.c b/chacha-crypt.c
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index 081ebcf4..1fdfc813 100644
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--- a/chacha-crypt.c
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+++ b/chacha-crypt.c
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@@ -80,13 +80,16 @@ _nettle_chacha_crypt_4core(struct chacha_ctx *ctx,
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while (length > 2*CHACHA_BLOCK_SIZE)
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{
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_nettle_chacha_4core (x, ctx->state, CHACHA_ROUNDS);
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- ctx->state[12] += 4;
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- ctx->state[13] += (ctx->state[12] < 4);
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if (length <= 4*CHACHA_BLOCK_SIZE)
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{
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+ uint32_t incr = 3 + (length > 3*CHACHA_BLOCK_SIZE);
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+ ctx->state[12] += incr;
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+ ctx->state[13] += (ctx->state[12] < incr);
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memxor3 (dst, src, x, length);
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return;
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}
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+ ctx->state[12] += 4;
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+ ctx->state[13] += (ctx->state[12] < 4);
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memxor3 (dst, src, x, 4*CHACHA_BLOCK_SIZE);
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length -= 4*CHACHA_BLOCK_SIZE;
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@@ -200,12 +203,13 @@ _nettle_chacha_crypt32_4core(struct chacha_ctx *ctx,
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while (length > 2*CHACHA_BLOCK_SIZE)
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{
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_nettle_chacha_4core32 (x, ctx->state, CHACHA_ROUNDS);
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- ctx->state[12] += 4;
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if (length <= 4*CHACHA_BLOCK_SIZE)
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{
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+ ctx->state[12] += 3 + (length > 3*CHACHA_BLOCK_SIZE);
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memxor3 (dst, src, x, length);
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return;
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}
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+ ctx->state[12] += 4;
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memxor3 (dst, src, x, 4*CHACHA_BLOCK_SIZE);
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length -= 4*CHACHA_BLOCK_SIZE;
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--
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2.29.2
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@ -15,7 +15,7 @@
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Name: nettle
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Version: 3.7
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Release: 2%{?dist}
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Release: 3%{?dist}
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Summary: A low-level cryptographic library
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License: LGPLv3+ or GPLv2+
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@ -28,6 +28,8 @@ Source2: nettle-3.5-remove-ecc-testsuite.patch
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%endif
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Patch0: nettle-3.6-remove-ecc-testsuite.patch
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Patch1: nettle-3.4-annocheck.patch
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# https://lists.lysator.liu.se/pipermail/nettle-bugs/2021/009423.html
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Patch2: nettle-3.7-chacha-counter-ppc64.patch
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BuildRequires: make
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BuildRequires: gcc
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@ -171,6 +173,9 @@ make check
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%changelog
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* Wed Feb 10 2021 Daiki Ueno <dueno@redhat.com> - 3.7-3
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- Port a fix for chacha counter issue on ppc64le
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* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 3.7-2
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
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