LittleNellie/cipherscan
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single-out 3DES ciphers

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3DES is the weakest cipher from the ones that are still officially
standing, so report more detailed statistics about it
This commit is contained in:
Hubert Kario 2016-07-20 20:51:51 +02:00
parent bbeac6107a
commit 7bb272e353
1 changed files with 28 additions and 0 deletions
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28
top1m/parse_results.py
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@ -89,11 +89,15 @@ cipherstats = defaultdict(int)
# ciphers selected by them, unsupported, etc. # ciphers selected by them, unsupported, etc.
client_RC4_Only_cipherstats={} client_RC4_Only_cipherstats={}
client_RC4_preferred_cipherstats={} client_RC4_preferred_cipherstats={}
client_3DES_Only_cipherstats={}
client_3DES_preferred_cipherstats={}
client_incompatible_cipherstats={} client_incompatible_cipherstats={}
client_selected_cipherstats={} client_selected_cipherstats={}
for client_name in client_ciphers: for client_name in client_ciphers:
client_RC4_Only_cipherstats[client_name] = defaultdict(int) client_RC4_Only_cipherstats[client_name] = defaultdict(int)
client_RC4_preferred_cipherstats[client_name] = defaultdict(int) client_RC4_preferred_cipherstats[client_name] = defaultdict(int)
client_3DES_Only_cipherstats[client_name] = defaultdict(int)
client_3DES_preferred_cipherstats[client_name] = defaultdict(int)
client_incompatible_cipherstats[client_name] = defaultdict(int) client_incompatible_cipherstats[client_name] = defaultdict(int)
client_selected_cipherstats[client_name] = defaultdict(int) client_selected_cipherstats[client_name] = defaultdict(int)
@ -189,16 +193,20 @@ for r,d,flist in os.walk(path):
GOST89_cipher = False GOST89_cipher = False
""" variables to support handshake simulation for different clients """ """ variables to support handshake simulation for different clients """
client_RC4_Only={} client_RC4_Only={}
client_3DES_Only={}
client_compat={} client_compat={}
temp_client_incompat={} temp_client_incompat={}
client_RC4_Pref={} client_RC4_Pref={}
client_3DES_Pref={}
client_selected={} client_selected={}
for client_name in client_ciphers: for client_name in client_ciphers:
# the following depends on client_compat, so by default it can be True # the following depends on client_compat, so by default it can be True
client_RC4_Only[client_name]=True client_RC4_Only[client_name]=True
client_3DES_Only[client_name]=True
client_compat[client_name]=False client_compat[client_name]=False
temp_client_incompat[client_name]={} temp_client_incompat[client_name]={}
client_RC4_Pref[client_name]=None client_RC4_Pref[client_name]=None
client_3DES_Pref[client_name]=None
client_selected[client_name]=None client_selected[client_name]=None
""" server side list of supported ciphers """ """ server side list of supported ciphers """
@ -369,6 +377,8 @@ for r,d,flist in os.walk(path):
client_compat[client_name]=True client_compat[client_name]=True
if not 'RC4' in entry['cipher']: if not 'RC4' in entry['cipher']:
client_RC4_Only[client_name] = False client_RC4_Only[client_name] = False
if not 'CBC3' in entry['cipher']:
client_3DES_Only[client_name] = False
else: else:
temp_client_incompat[client_name][entry['cipher']] = 1 temp_client_incompat[client_name][entry['cipher']] = 1
@ -547,6 +557,8 @@ for r,d,flist in os.walk(path):
client_selected[client_name] = cipher client_selected[client_name] = cipher
if 'RC4' in cipher: if 'RC4' in cipher:
client_RC4_Pref[client_name] = True client_RC4_Pref[client_name] = True
if 'CBC3' in cipher:
client_3DES_Pref[client_name] = True
break break
else: else:
for cipher in list_of_ciphers: for cipher in list_of_ciphers:
@ -554,6 +566,8 @@ for r,d,flist in os.walk(path):
client_selected[client_name] = cipher client_selected[client_name] = cipher
if 'RC4' in cipher: if 'RC4' in cipher:
client_RC4_Pref[client_name] = True client_RC4_Pref[client_name] = True
if 'CBC3' in cipher:
client_3DES_Pref[client_name] = True
break break
for s in tempfallbacks: for s in tempfallbacks:
@ -615,6 +629,12 @@ for r,d,flist in os.walk(path):
cipherstats['3DES'] += 1 cipherstats['3DES'] += 1
if ciphertypes == 1: if ciphertypes == 1:
cipherstats['3DES Only'] += 1 cipherstats['3DES Only'] += 1
if 'CBC3' in results['ciphersuite'][0]['cipher']:
if 'TLSv1.1' in results['ciphersuite'][0]['protocols'] or\
'TLSv1.2' in results['ciphersuite'][0]['protocols']:
cipherstats['3DES forced in TLS1.1+'] += 1
cipherstats['3DES Preferred'] += 1
if CAMELLIA: if CAMELLIA:
cipherstats['CAMELLIA'] += 1 cipherstats['CAMELLIA'] += 1
if ciphertypes == 1: if ciphertypes == 1:
@ -649,6 +669,14 @@ for r,d,flist in os.walk(path):
cipherstats['x:' + client_name + ' RC4 Preferred'] += 1 cipherstats['x:' + client_name + ' RC4 Preferred'] += 1
for cipher in temp_client_incompat[client_name]: for cipher in temp_client_incompat[client_name]:
client_RC4_preferred_cipherstats[client_name][cipher] += 1 client_RC4_preferred_cipherstats[client_name][cipher] += 1
if client_3DES_Only[client_name]:
cipherstats['x:' + client_name + ' 3DES Only'] += 1
for cipher in temp_client_incompat[client_name]:
client_3DES_Only_cipherstats[client_name][cipher] += 1
if client_3DES_Pref[client_name]:
cipherstats['x:' + client_name + ' 3DES Preferred'] += 1
for cipher in temp_client_incompat[client_name]:
client_3DES_preferred_cipherstats[client_name][cipher] += 1
else: else:
cipherstats['x:' + client_name + ' incompatible'] += 1 cipherstats['x:' + client_name + ' incompatible'] += 1
for cipher in temp_client_incompat[client_name]: for cipher in temp_client_incompat[client_name]: