Botan: src/ssl/tls_suites.cpp Source File

Botan 1.10.17

tls_suites.cpp
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1 /*
2 * TLS Cipher Suites
3 * (C) 2004-2010 Jack Lloyd
4 *
5 * Released under the terms of the Botan license
6 */
7
8 #include <botan/tls_suites.h>
9 #include <botan/tls_exceptn.h>
10
11 namespace Botan {
12
13 /**
14 * Convert an SSL/TLS ciphersuite to algorithm fields
15 */
16 TLS_Ciphersuite_Algos CipherSuite::lookup_ciphersuite(u16bit suite)
17 {
18 if(suite == TLS_RSA_WITH_RC4_128_MD5)
19 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
20 TLS_ALGO_KEYEXCH_NOKEX |
21 TLS_ALGO_MAC_MD5 |
22 TLS_ALGO_CIPHER_RC4_128);
23
24 if(suite == TLS_RSA_WITH_RC4_128_SHA)
25 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
26 TLS_ALGO_KEYEXCH_NOKEX |
27 TLS_ALGO_MAC_SHA1 |
28 TLS_ALGO_CIPHER_RC4_128);
29
30 if(suite == TLS_RSA_WITH_3DES_EDE_CBC_SHA)
31 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
32 TLS_ALGO_KEYEXCH_NOKEX |
33 TLS_ALGO_MAC_SHA1 |
34 TLS_ALGO_CIPHER_3DES_CBC);
35
36 if(suite == TLS_RSA_WITH_AES_128_CBC_SHA)
37 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
38 TLS_ALGO_KEYEXCH_NOKEX |
39 TLS_ALGO_MAC_SHA1 |
40 TLS_ALGO_CIPHER_AES128_CBC);
41
42 if(suite == TLS_RSA_WITH_AES_256_CBC_SHA)
43 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
44 TLS_ALGO_KEYEXCH_NOKEX |
45 TLS_ALGO_MAC_SHA1 |
46 TLS_ALGO_CIPHER_AES256_CBC);
47
48 if(suite == TLS_RSA_WITH_SEED_CBC_SHA)
49 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
50 TLS_ALGO_KEYEXCH_NOKEX |
51 TLS_ALGO_MAC_SHA1 |
52 TLS_ALGO_CIPHER_SEED_CBC);
53
54 if(suite == TLS_RSA_WITH_AES_128_CBC_SHA256)
55 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
56 TLS_ALGO_KEYEXCH_NOKEX |
57 TLS_ALGO_MAC_SHA256 |
58 TLS_ALGO_CIPHER_AES128_CBC);
59
60 if(suite == TLS_RSA_WITH_AES_256_CBC_SHA256)
61 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
62 TLS_ALGO_KEYEXCH_NOKEX |
63 TLS_ALGO_MAC_SHA256 |
64 TLS_ALGO_CIPHER_AES256_CBC);
65
66 if(suite == TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA)
67 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_DSA |
68 TLS_ALGO_KEYEXCH_DH |
69 TLS_ALGO_MAC_SHA1 |
70 TLS_ALGO_CIPHER_3DES_CBC);
71
72 if(suite == TLS_DHE_DSS_WITH_AES_128_CBC_SHA)
73 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_DSA |
74 TLS_ALGO_KEYEXCH_DH |
75 TLS_ALGO_MAC_SHA1 |
76 TLS_ALGO_CIPHER_AES128_CBC);
77
78 if(suite == TLS_DHE_DSS_WITH_SEED_CBC_SHA)
79 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_DSA |
80 TLS_ALGO_KEYEXCH_DH |
81 TLS_ALGO_MAC_SHA1 |
82 TLS_ALGO_CIPHER_SEED_CBC);
83
84 if(suite == TLS_DHE_DSS_WITH_AES_256_CBC_SHA)
85 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_DSA |
86 TLS_ALGO_KEYEXCH_DH |
87 TLS_ALGO_MAC_SHA1 |
88 TLS_ALGO_CIPHER_AES256_CBC);
89
90 if(suite == TLS_DHE_DSS_WITH_AES_128_CBC_SHA256)
91 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_DSA |
92 TLS_ALGO_KEYEXCH_DH |
93 TLS_ALGO_MAC_SHA256 |
94 TLS_ALGO_CIPHER_AES128_CBC);
95
96 if(suite == TLS_DHE_DSS_WITH_AES_256_CBC_SHA256)
97 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_DSA |
98 TLS_ALGO_KEYEXCH_DH |
99 TLS_ALGO_MAC_SHA256 |
100 TLS_ALGO_CIPHER_AES256_CBC);
101
102 if(suite == TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA)
103 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
104 TLS_ALGO_KEYEXCH_DH |
105 TLS_ALGO_MAC_SHA1 |
106 TLS_ALGO_CIPHER_3DES_CBC);
107
108 if(suite == TLS_DHE_RSA_WITH_AES_128_CBC_SHA)
109 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
110 TLS_ALGO_KEYEXCH_DH |
111 TLS_ALGO_MAC_SHA1 |
112 TLS_ALGO_CIPHER_AES128_CBC);
113
114 if(suite == TLS_DHE_DSS_WITH_SEED_CBC_SHA)
115 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
116 TLS_ALGO_KEYEXCH_DH |
117 TLS_ALGO_MAC_SHA1 |
118 TLS_ALGO_CIPHER_SEED_CBC);
119
120 if(suite == TLS_DHE_RSA_WITH_AES_256_CBC_SHA)
121 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
122 TLS_ALGO_KEYEXCH_DH |
123 TLS_ALGO_MAC_SHA1 |
124 TLS_ALGO_CIPHER_AES256_CBC);
125
126 if(suite == TLS_DHE_RSA_WITH_AES_128_CBC_SHA256)
127 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
128 TLS_ALGO_KEYEXCH_DH |
129 TLS_ALGO_MAC_SHA256 |
130 TLS_ALGO_CIPHER_AES128_CBC);
131
132 if(suite == TLS_DHE_RSA_WITH_AES_256_CBC_SHA256)
133 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
134 TLS_ALGO_KEYEXCH_DH |
135 TLS_ALGO_MAC_SHA256 |
136 TLS_ALGO_CIPHER_AES256_CBC);
137
138 if(suite == TLS_ECDHE_ECDSA_WITH_RC4_128_SHA)
139 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_ECDSA |
140 TLS_ALGO_KEYEXCH_ECDH |
141 TLS_ALGO_MAC_SHA1 |
142 TLS_ALGO_CIPHER_RC4_128);
143
144 if(suite == TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA)
145 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_ECDSA |
146 TLS_ALGO_KEYEXCH_ECDH |
147 TLS_ALGO_MAC_SHA1 |
148 TLS_ALGO_CIPHER_3DES_CBC);
149
150 if(suite == TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA)
151 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_ECDSA |
152 TLS_ALGO_KEYEXCH_ECDH |
153 TLS_ALGO_MAC_SHA1 |
154 TLS_ALGO_CIPHER_AES128_CBC);
155
156 if(suite == TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA)
157 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_ECDSA |
158 TLS_ALGO_KEYEXCH_ECDH |
159 TLS_ALGO_MAC_SHA1 |
160 TLS_ALGO_CIPHER_AES256_CBC);
161
162 if(suite == TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256)
163 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_ECDSA |
164 TLS_ALGO_KEYEXCH_ECDH |
165 TLS_ALGO_MAC_SHA256 |
166 TLS_ALGO_CIPHER_AES128_CBC);
167
168 if(suite == TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384)
169 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_ECDSA |
170 TLS_ALGO_KEYEXCH_ECDH |
171 TLS_ALGO_MAC_SHA384 |
172 TLS_ALGO_CIPHER_AES256_CBC);
173
174 if(suite == TLS_ECDHE_RSA_WITH_RC4_128_SHA)
175 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
176 TLS_ALGO_KEYEXCH_ECDH |
177 TLS_ALGO_MAC_SHA1 |
178 TLS_ALGO_CIPHER_RC4_128);
179
180 if(suite == TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA)
181 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
182 TLS_ALGO_KEYEXCH_ECDH |
183 TLS_ALGO_MAC_SHA1 |
184 TLS_ALGO_CIPHER_3DES_CBC);
185
186 if(suite == TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA)
187 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
188 TLS_ALGO_KEYEXCH_ECDH |
189 TLS_ALGO_MAC_SHA1 |
190 TLS_ALGO_CIPHER_AES128_CBC);
191
192 if(suite == TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA)
193 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_RSA |
194 TLS_ALGO_KEYEXCH_ECDH |
195 TLS_ALGO_MAC_SHA1 |
196 TLS_ALGO_CIPHER_AES256_CBC);
197
198 if(suite == TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256)
199 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_ECDSA |
200 TLS_ALGO_KEYEXCH_ECDH |
201 TLS_ALGO_MAC_SHA256 |
202 TLS_ALGO_CIPHER_AES128_CBC);
203
204 if(suite == TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384)
205 return TLS_Ciphersuite_Algos(TLS_ALGO_SIGNER_ECDSA |
206 TLS_ALGO_KEYEXCH_ECDH |
207 TLS_ALGO_MAC_SHA384 |
208 TLS_ALGO_CIPHER_AES256_CBC);
209
210 return TLS_Ciphersuite_Algos(0);
211 }
212
213 namespace {
214
215 std::pair<std::string, size_t> cipher_code_to_name(TLS_Ciphersuite_Algos algo)
216 {
217 if((algo & TLS_ALGO_CIPHER_MASK) == TLS_ALGO_CIPHER_RC4_128)
218 return std::make_pair("ARC4", 16);
219
220 if((algo & TLS_ALGO_CIPHER_MASK) == TLS_ALGO_CIPHER_3DES_CBC)
221 return std::make_pair("3DES", 24);
222
223 if((algo & TLS_ALGO_CIPHER_MASK) == TLS_ALGO_CIPHER_AES128_CBC)
224 return std::make_pair("AES-128", 16);
225
226 if((algo & TLS_ALGO_CIPHER_MASK) == TLS_ALGO_CIPHER_AES256_CBC)
227 return std::make_pair("AES-256", 32);
228
229 if((algo & TLS_ALGO_CIPHER_MASK) == TLS_ALGO_CIPHER_SEED_CBC)
230 return std::make_pair("SEED", 16);
231
232 throw TLS_Exception(INTERNAL_ERROR,
233 "CipherSuite: Unknown cipher type " + to_string(algo));
234 }
235
236 std::string mac_code_to_name(TLS_Ciphersuite_Algos algo)
237 {
238 if((algo & TLS_ALGO_MAC_MASK) == TLS_ALGO_MAC_MD5)
239 return "MD5";
240
241 if((algo & TLS_ALGO_MAC_MASK) == TLS_ALGO_MAC_SHA1)
242 return "SHA-1";
243
244 if((algo & TLS_ALGO_MAC_MASK) == TLS_ALGO_MAC_SHA256)
245 return "SHA-256";
246
247 if((algo & TLS_ALGO_MAC_MASK) == TLS_ALGO_MAC_SHA384)
248 return "SHA-384";
249
250 throw TLS_Exception(INTERNAL_ERROR,
251 "CipherSuite: Unknown MAC type " + to_string(algo));
252 }
253
254 }
255
256 /**
257 * CipherSuite Constructor
258 */
259 CipherSuite::CipherSuite(u16bit suite_code)
260 {
261 if(suite_code == 0)
262 return;
263
264 TLS_Ciphersuite_Algos algos = lookup_ciphersuite(suite_code);
265
266 if(algos == 0)
267 throw Invalid_Argument("Unknown ciphersuite: " + to_string(suite_code));
268
269 sig_algo = TLS_Ciphersuite_Algos(algos & TLS_ALGO_SIGNER_MASK);
270
271 kex_algo = TLS_Ciphersuite_Algos(algos & TLS_ALGO_KEYEXCH_MASK);
272
273 std::pair<std::string, size_t> cipher_info = cipher_code_to_name(algos);
274
275 cipher = cipher_info.first;
276 cipher_key_length = cipher_info.second;
277
278 mac = mac_code_to_name(algos);
279 }
280
281 }
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Definition: tls_magic.h:114
Botan::TLS_ALGO_CIPHER_SEED_CBC
Definition: tls_magic.h:169
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Definition: tls_magic.h:108
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Definition: tls_magic.h:126
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Definition: tls_magic.h:125
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Definition: tls_magic.h:149
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Definition: tls_magic.h:111
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Definition: tls_suites.cpp:16
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Definition: tls_magic.h:150
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Definition: tls_magic.h:110
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