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Documenting how to build OpenSSL with ChaCha20-Poly1305

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Also updating README.md with new options by MacLemon
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Michael Zeltner 2014-04-01 14:29:55 -04:00
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README.md
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@ -11,22 +11,30 @@ of OpenSSL below 1.0.1 don't support TLS1.2 ciphers, elliptic curves, etc... Bui
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:
```
./config no-shared
make
```
And get the binary from `app/openssl`. (`./config` will ask you to run `make depend` which will fail - for our purposes this step is not required)
Options
-------
Enable benchmarking by passing -b|--benchmark
You can the options below.
-a | --allciphers Test all known ciphers individually at the end.
-b | --benchmark Activate benchmark mode.
-h | --help Shows this help text.
-j | --json Output results in JSON format.
-o | --openssl /path/to/the/openssl binary you want to use.
-v | --verbose Increase verbosity.
```
linux $ ./cipherscan -json www.google.com:443
-a | --allciphers Test all known ciphers individually at the end.
-b | --benchmark Activate benchmark mode.
-d | --delay Pause for n seconds between connections
-D | --debug Output ALL the information.
-h | --help Shows this help text.
-j | --json Output results in JSON format.
-o | --openssl path/to/your/openssl binary you want to use.
-v | --verbose Increase verbosity.
```
Example
@ -34,7 +42,7 @@ Example
Testing plain SSL/TLS:
```
$ ./cipherscan www.google.com:443
linux $ ./cipherscan www.google.com:443
...................
prio ciphersuite protocols pfs_keysize
1 ECDHE-RSA-CHACHA20-POLY1305 SSLv3,TLSv1,TLSv1.1,TLSv1.2 ECDH,P-256,256bits
@ -59,7 +67,7 @@ prio ciphersuite protocols pfs_keysize
Testing STARTTLS:
```
$ ./cipherscan -starttls xmpp jabber.ccc.de:5222
darwin $ ./cipherscan -o ./openssl-mine -starttls xmpp jabber.ccc.de:5222
.........
prio ciphersuite protocols pfs_keysize
1 DHE-RSA-AES256-SHA SSLv3,TLSv1 DH,1024bits