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Index: head/security/Makefile
===================================================================
--- head/security/Makefile
+++ head/security/Makefile
@@ -1083,6 +1083,7 @@
SUBDIR += secure_delete
SUBDIR += sguil
SUBDIR += sha
+ SUBDIR += sha1collisiondetection
SUBDIR += shibboleth2-sp
SUBDIR += shimmer
SUBDIR += shishi
Index: head/security/sha1collisiondetection/Makefile
===================================================================
--- head/security/sha1collisiondetection/Makefile
+++ head/security/sha1collisiondetection/Makefile
@@ -0,0 +1,36 @@
+# $FreeBSD$
+
+PORTNAME= sha1collisiondetection
+PORTVERSION= 1.0.2
+DISTVERSIONPREFIX= stable-v
+CATEGORIES= security
+
+MAINTAINER= jharris@widomaker.com
+COMMENT= Library and command line tool to detect SHA-1 collisions
+
+LICENSE= MIT
+LICENSE_FILE= ${WRKSRC}/LICENSE.txt
+
+USE_GITHUB= yes
+GH_ACCOUNT= cr-marcstevens
+
+USE_LDCONFIG= yes
+ALL_TARGET= library tools
+
+USES= gmake libtool:build
+
+PLIST_FILES= bin/sha1dcsum \
+ bin/sha1dcsum_partialcoll \
+ include/sha1dc/sha1.h \
+ lib/libsha1detectcoll.so \
+ lib/libsha1detectcoll.so.0 \
+ lib/libsha1detectcoll.so.0.0.0
+do-install:
+ ${INSTALL_PROGRAM} ${WRKSRC}/bin/.libs/sha1dcsum* ${STAGEDIR}${PREFIX}/bin
+ @${MKDIR} ${STAGEDIR}${PREFIX}/include/sha1dc
+ ${INSTALL_DATA} ${WRKSRC}/lib/sha1.h ${STAGEDIR}${PREFIX}/include/sha1dc
+ ${INSTALL_LIB} ${WRKSRC}/bin/.libs/libsha1detectcoll.so.0.0.0 ${STAGEDIR}${PREFIX}/lib
+ ${LN} -sf ./libsha1detectcoll.so.0.0.0 ${STAGEDIR}${PREFIX}/lib/libsha1detectcoll.so
+ ${LN} -sf ./libsha1detectcoll.so.0.0.0 ${STAGEDIR}${PREFIX}/lib/libsha1detectcoll.so.0
+
+.include <bsd.port.mk>
Index: head/security/sha1collisiondetection/distinfo
===================================================================
--- head/security/sha1collisiondetection/distinfo
+++ head/security/sha1collisiondetection/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1489459273
+SHA256 (cr-marcstevens-sha1collisiondetection-stable-v1.0.2_GH0.tar.gz) = ab1a5624d12417b5af9ffe6662546b6932c39c0e4c4bef822851a2d0e53df790
+SIZE (cr-marcstevens-sha1collisiondetection-stable-v1.0.2_GH0.tar.gz) = 778302
Index: head/security/sha1collisiondetection/pkg-descr
===================================================================
--- head/security/sha1collisiondetection/pkg-descr
+++ head/security/sha1collisiondetection/pkg-descr
@@ -0,0 +1,16 @@
+This library and command line tool were designed as near drop-in
+replacements for common SHA-1 libraries and sha1sum. They will compute
+the SHA-1 hash of any given file and additionally will detect
+cryptanalytic collision attacks against SHA-1 present in each file.
+It is very fast and takes less than twice the amount of time as
+regular SHA-1.
+
+There are two programs: sha1dcsum and sha1dcsum_partialcoll.
+The first program, sha1dcsum, will detect and warn for files that were
+generated with a cryptanalytic SHA-1 collision attack like the one
+documented at https://shattered.io/. The second program,
+sha1dcsum_partialcoll, will detect and warn for files that were
+generated with a cryptanalytic collision attack against reduced-
+round SHA-1 (of which there are a few examples so far).
+
+WWW: https://github.com/cr-marcstevens/sha1collisiondetection

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