LittleNellie/cipherscan
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Merge pull request #1 from oparoz/patch-1

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Patch 1
This commit is contained in:
Olivier Paroz 2014-09-16 02:12:18 +02:00
commit 8f5eb93fd9
2 changed files with 27 additions and 9 deletions
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10
README.md
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@ -8,15 +8,18 @@ On Linux x86_64 run: ./cipherscan www.google.com:443
On any other *nix or *tux run: ./cipherscan -o /path/to/openssl www.google.com:443
and watch.
The newer your version of openssl, the better results you'll get. Versions
of OpenSSL below 1.0.1 don't support TLS1.2 ciphers, elliptic curves, etc... Build your own or test what your system's OpenSSL supports.
On FreeBSD, you will need the following ports: textproc/gnugrep and sysutils/coreutils
The newer your version of openssl, the better results you'll get. Versions of OpenSSL below 1.0.1 don't support TLS1.2 ciphers, elliptic curves, etc...
Version 1.0.2 gives extra information about the ciphers used for the key exchange.
Build your own or test what your system's OpenSSL supports.
Cipherscan should work fine on Linux, Mac OS X, Solaris, Illumos, SmartOS, OpenIndiana if you specify a an openssl binary with -o.
Build OpenSSL with ChaCha20-Poly1305 support (Optional)
-------------------------------------------------------
The OpenSSL binary in this repository is built for 64bit Linux. If you wish to build a version with the same features for your own platform, [the snapshot from the OpenSSL gitweb view](http://git.openssl.org/gitweb/?p=openssl.git;a=tree;h=161b23361778c155f9c174694b1db2506a2e0b52;hb=9a8646510b) and build it like this:
The OpenSSL binary in this repository is built for 64bit Linux. If you wish to build a version with the same features for your own platform, you can use [this snapshot from the OpenSSL gitweb view](http://git.openssl.org/gitweb/?p=openssl.git;a=tree;h=161b23361778c155f9c174694b1db2506a2e0b52;hb=9a8646510b) or [this Github repository](https://github.com/PeterMosmans/openssl) and build it like this:
```
./config no-shared
@ -226,3 +229,4 @@ Contributors
* Pepi Zawodsky <git@maclemon.at>
* Michael Zeltner <m@niij.org>
* Simon Deziel <simon.deziel@gmail.com>
* Olivier Paroz <opa-github@interfasys.ch>

26
cipherscan
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@ -4,9 +4,19 @@
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
# Author: Julien Vehent [:ulfr] - 2013
#
# Modified by Olivier Paroz in September 2014
#
# On FreeBSD, you will need the following ports: textproc/gnugrep and sysutils/coreutils
#
OS=`uname`
DOBENCHMARK=0
BENCHMARKITER=30
TIMEOUTBIN=timeout
if [ "${OS}" = "FreeBSD" ]; then
TIMEOUTBIN=gtimeout
fi
OPENSSLBIN="$(dirname $0)/openssl"
if [ -z "$CACERTS" ]; then
for f in /etc/pki/tls/certs/ca-bundle.crt /etc/ssl/certs/ca-certificates.crt; do
@ -33,10 +43,14 @@ TIMEOUT=10
usage() {
echo -e "usage: $0 [-a|--allciphers] [-b|--benchmark] [-d|--delay seconds] [-D|--debug] [-j|--json] [-v|--verbose] [-o|--openssl file] [openssl s_client args] <target:port>
usage: $0 -h|--help
usage: $0 -h|--help
$0 attempts to connect to a target site using all the ciphersuites it knows.
Julien Vehent [:ulfr] - https://github.com/jvehent/cipherscan
Original script by Julien Vehent. [:ulfr] - https://github.com/jvehent/cipherscan
FreeBSD version by Olivier Paroz. [:ulfr] - https://github.com/oparoz/cipherscan
On FreeBSD, you will need the following ports on FreeBSD: textproc/gnugrep and sysutils/coreutils
Port defaults to 443
@ -165,7 +179,7 @@ test_cipher_on_target() {
# Calculate the average handshake time for a specific ciphersuite
bench_cipher() {
local ciphersuite="$1"
local sslcommand="timeout $TIMEOUT $OPENSSLBIN s_client $SCLIENTARGS -connect $TARGET -cipher $ciphersuite"
local sslcommand="$TIMEOUTBIN $TIMEOUT $OPENSSLBIN s_client $SCLIENTARGS -connect $TARGET -cipher $ciphersuite"
local t="$(date +%s%N)"
verbose "Benchmarking handshake on '$TARGET' with ciphersuite '$ciphersuite'"
for i in $(seq 1 $BENCHMARKITER); do
@ -189,9 +203,9 @@ get_cipher_pref() {
[ "$OUTPUTFORMAT" == "terminal" ] && [ $DEBUG -lt 1 ] && echo -n '.'
local ciphersuite="$1"
if [ -e $CACERTS ]; then
local sslcommand="timeout $TIMEOUT $OPENSSLBIN s_client -CAfile $CACERTS -status $SCLIENTARGS -connect $TARGET -cipher $ciphersuite"
local sslcommand="$TIMEOUTBIN $TIMEOUT $OPENSSLBIN s_client -CAfile $CACERTS -status $SCLIENTARGS -connect $TARGET -cipher $ciphersuite"
else
local sslcommand="timeout $TIMEOUT $OPENSSLBIN s_client -status $SCLIENTARGS -connect $TARGET -cipher $ciphersuite"
local sslcommand="$TIMEOUTBIN $TIMEOUT $OPENSSLBIN s_client -status $SCLIENTARGS -connect $TARGET -cipher $ciphersuite"
fi
verbose "Connecting to '$TARGET' with ciphersuite '$ciphersuite'"
test_cipher_on_target "$sslcommand"
@ -410,7 +424,7 @@ if [ $ALLCIPHERS -gt 0 ]; then
echo; echo "All accepted ciphersuites"
for c in $($OPENSSLBIN ciphers -v ALL:COMPLEMENTOFALL 2>/dev/null |awk '{print $1}'|sort|uniq); do
r="fail"
osslcommand="timeout $TIMEOUT $OPENSSLBIN s_client $SCLIENTARGS -connect $TARGET -cipher $c"
osslcommand="$TIMEOUTBIN $TIMEOUT $OPENSSLBIN s_client $SCLIENTARGS -connect $TARGET -cipher $c"
test_cipher_on_target "$osslcommand"
if [ $? -eq 0 ]; then
r="pass"