11336383167

Committed 14 Oct 2024 11:16PM UTC coverage: 91.121% (+0.001%) from 91.12%

Build # 11336383167

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github

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Commit Message

Merge pull request #4369 from randombit/jack/refactor-speed-algos

Refactor performance testing of symmetric algorithms

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97.1

/src/lib/modes/cipher_mode.cpp

/*
* Cipher Modes
* (C) 2015 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/cipher_mode.h>

#include <botan/internal/parsing.h>
#include <botan/internal/scan_name.h>
#include <botan/internal/stream_mode.h>
#include <sstream>

#if defined(BOTAN_HAS_BLOCK_CIPHER)
   #include <botan/block_cipher.h>
#endif

#if defined(BOTAN_HAS_AEAD_MODES)
   #include <botan/aead.h>
#endif

#if defined(BOTAN_HAS_MODE_CBC)
   #include <botan/internal/cbc.h>
#endif

#if defined(BOTAN_HAS_MODE_CFB)
   #include <botan/internal/cfb.h>
#endif

#if defined(BOTAN_HAS_MODE_XTS)
   #include <botan/internal/xts.h>
#endif

#if defined(BOTAN_HAS_COMMONCRYPTO)
   #include <botan/internal/commoncrypto.h>
#endif

namespace Botan {

std::unique_ptr<Cipher_Mode> Cipher_Mode::create_or_throw(std::string_view algo,
                                                          Cipher_Dir direction,
                                                          std::string_view provider) {
   if(auto mode = Cipher_Mode::create(algo, direction, provider)) {
      return mode;
   }

   throw Lookup_Error("Cipher mode", algo, provider);
}

std::unique_ptr<Cipher_Mode> Cipher_Mode::create(std::string_view algo,
                                                 Cipher_Dir direction,
                                                 std::string_view provider) {
#if defined(BOTAN_HAS_COMMONCRYPTO)
   if(provider.empty() || provider == "commoncrypto") {
      if(auto cm = make_commoncrypto_cipher_mode(algo, direction))
         return cm;

      if(!provider.empty())
         return nullptr;
   }
#endif

   if(provider != "base" && !provider.empty()) {
      return nullptr;
   }

#if defined(BOTAN_HAS_STREAM_CIPHER)
   if(auto sc = StreamCipher::create(algo)) {
      return std::make_unique<Stream_Cipher_Mode>(std::move(sc));
   }
#endif

#if defined(BOTAN_HAS_AEAD_MODES)
   if(auto aead = AEAD_Mode::create(algo, direction)) {
      return aead;
   }
#endif

   if(algo.find('/') != std::string::npos) {
      const std::vector<std::string> algo_parts = split_on(algo, '/');
      std::string_view cipher_name = algo_parts[0];
      const std::vector<std::string> mode_info = parse_algorithm_name(algo_parts[1]);

      if(mode_info.empty()) {
         return std::unique_ptr<Cipher_Mode>();
      }

      std::ostringstream mode_name;

      mode_name << mode_info[0] << '(' << cipher_name;
      for(size_t i = 1; i < mode_info.size(); ++i) {
         mode_name << ',' << mode_info[i];
      }
      for(size_t i = 2; i < algo_parts.size(); ++i) {
         mode_name << ',' << algo_parts[i];
      }
      mode_name << ')';

      return Cipher_Mode::create(mode_name.str(), direction, provider);
   }

#if defined(BOTAN_HAS_BLOCK_CIPHER)

   SCAN_Name spec(algo);

   if(spec.arg_count() == 0) {
      return std::unique_ptr<Cipher_Mode>();
   }

   auto bc = BlockCipher::create(spec.arg(0), provider);

   if(!bc) {
      return std::unique_ptr<Cipher_Mode>();
   }

   #if defined(BOTAN_HAS_MODE_CBC)
   if(spec.algo_name() == "CBC") {
      const std::string padding = spec.arg(1, "PKCS7");

      if(padding == "CTS") {
         if(direction == Cipher_Dir::Encryption) {
            return std::make_unique<CTS_Encryption>(std::move(bc));
         } else {
            return std::make_unique<CTS_Decryption>(std::move(bc));
         }
      } else {
         auto pad = BlockCipherModePaddingMethod::create(padding);

         if(pad) {
            if(direction == Cipher_Dir::Encryption) {
               return std::make_unique<CBC_Encryption>(std::move(bc), std::move(pad));
            } else {
               return std::make_unique<CBC_Decryption>(std::move(bc), std::move(pad));
            }
         }
      }
   }
   #endif

   #if defined(BOTAN_HAS_MODE_XTS)
   if(spec.algo_name() == "XTS") {
      if(direction == Cipher_Dir::Encryption) {
         return std::make_unique<XTS_Encryption>(std::move(bc));
      } else {
         return std::make_unique<XTS_Decryption>(std::move(bc));
      }
   }
   #endif

   #if defined(BOTAN_HAS_MODE_CFB)
   if(spec.algo_name() == "CFB") {
      const size_t feedback_bits = spec.arg_as_integer(1, 8 * bc->block_size());
      if(direction == Cipher_Dir::Encryption) {
         return std::make_unique<CFB_Encryption>(std::move(bc), feedback_bits);
      } else {
         return std::make_unique<CFB_Decryption>(std::move(bc), feedback_bits);
      }
   }
   #endif

#endif

   return std::unique_ptr<Cipher_Mode>();
}

//static
std::vector<std::string> Cipher_Mode::providers(std::string_view algo_spec) {
   const std::vector<std::string>& possible = {"base", "commoncrypto"};
   std::vector<std::string> providers;
   for(auto&& prov : possible) {
      auto mode = Cipher_Mode::create(algo_spec, Cipher_Dir::Encryption, prov);
      if(mode) {
         providers.push_back(prov);  // available
      }
   }
   return providers;
}

}  // namespace Botan

1	/*
2	* Cipher Modes
3	* (C) 2015 Jack Lloyd
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/cipher_mode.h>
9
10	#include <botan/internal/parsing.h>
11	#include <botan/internal/scan_name.h>
12	#include <botan/internal/stream_mode.h>
13	#include <sstream>
14
15	#if defined(BOTAN_HAS_BLOCK_CIPHER)
16	#include <botan/block_cipher.h>
17	#endif
18
19	#if defined(BOTAN_HAS_AEAD_MODES)
20	#include <botan/aead.h>
21	#endif
22
23	#if defined(BOTAN_HAS_MODE_CBC)
24	#include <botan/internal/cbc.h>
25	#endif
26
27	#if defined(BOTAN_HAS_MODE_CFB)
28	#include <botan/internal/cfb.h>
29	#endif
30
31	#if defined(BOTAN_HAS_MODE_XTS)
32	#include <botan/internal/xts.h>
33	#endif
34
35	#if defined(BOTAN_HAS_COMMONCRYPTO)
36	#include <botan/internal/commoncrypto.h>
37	#endif
38
39	namespace Botan {
40
41	std::unique_ptr<Cipher_Mode> Cipher_Mode::create_or_throw(std::string_view algo,	165✔
42	Cipher_Dir direction,
43	std::string_view provider) {
44	if(auto mode = Cipher_Mode::create(algo, direction, provider)) {	165✔
45	return mode;	164✔
46	}	164✔
47
48	throw Lookup_Error("Cipher mode", algo, provider);	1✔
49	}
50
51	std::unique_ptr<Cipher_Mode> Cipher_Mode::create(std::string_view algo,	20,074✔
52	Cipher_Dir direction,
53	std::string_view provider) {
54	#if defined(BOTAN_HAS_COMMONCRYPTO)
55	if(provider.empty() \|\| provider == "commoncrypto") {
56	if(auto cm = make_commoncrypto_cipher_mode(algo, direction))
57	return cm;
58
59	if(!provider.empty())
60	return nullptr;
61	}
62	#endif
63
64	if(provider != "base" && !provider.empty()) {	27,544✔
65	return nullptr;	1,249✔
66	}
67
68	#if defined(BOTAN_HAS_STREAM_CIPHER)
69	if(auto sc = StreamCipher::create(algo)) {	18,825✔
70	return std::make_unique<Stream_Cipher_Mode>(std::move(sc));	51✔
71	}	51✔
72	#endif
73
74	#if defined(BOTAN_HAS_AEAD_MODES)
75	if(auto aead = AEAD_Mode::create(algo, direction)) {	18,774✔
76	return aead;	3,857✔
77	}	3,857✔
78	#endif
79
80	if(algo.find('/') != std::string::npos) {	14,917✔
81	const std::vector<std::string> algo_parts = split_on(algo, '/');	7,331✔
82	std::string_view cipher_name = algo_parts[0];	7,331✔
83	const std::vector<std::string> mode_info = parse_algorithm_name(algo_parts[1]);	7,331✔
84
85	if(mode_info.empty()) {	7,331✔
86	return std::unique_ptr<Cipher_Mode>();	×
87	}
88
89	std::ostringstream mode_name;	7,331✔
90
91	mode_name << mode_info[0] << '(' << cipher_name;	7,331✔
92	for(size_t i = 1; i < mode_info.size(); ++i) {	7,563✔
93	mode_name << ',' << mode_info[i];	232✔
94	}
95	for(size_t i = 2; i < algo_parts.size(); ++i) {	8,995✔
96	mode_name << ',' << algo_parts[i];	1,664✔
97	}
98	mode_name << ')';	7,331✔
99
100	return Cipher_Mode::create(mode_name.str(), direction, provider);	7,331✔
101	}	7,331✔
102
103	#if defined(BOTAN_HAS_BLOCK_CIPHER)
104
105	SCAN_Name spec(algo);	7,586✔
106
107	if(spec.arg_count() == 0) {	7,586✔
108	return std::unique_ptr<Cipher_Mode>();	1✔
109	}
110
111	auto bc = BlockCipher::create(spec.arg(0), provider);	7,585✔
112
113	if(!bc) {	7,585✔
114	return std::unique_ptr<Cipher_Mode>();	2✔
115	}
116
117	#if defined(BOTAN_HAS_MODE_CBC)
118	if(spec.algo_name() == "CBC") {	7,583✔
119	const std::string padding = spec.arg(1, "PKCS7");	2,715✔
120
121	if(padding == "CTS") {	2,715✔
122	if(direction == Cipher_Dir::Encryption) {	240✔
123	return std::make_unique<CTS_Encryption>(std::move(bc));	144✔
124	} else {
125	return std::make_unique<CTS_Decryption>(std::move(bc));	96✔
126	}
127	} else {
128	auto pad = BlockCipherModePaddingMethod::create(padding);	2,475✔
129
130	if(pad) {	2,475✔
131	if(direction == Cipher_Dir::Encryption) {	2,475✔
132	return std::make_unique<CBC_Encryption>(std::move(bc), std::move(pad));	1,401✔
133	} else {
134	return std::make_unique<CBC_Decryption>(std::move(bc), std::move(pad));	1,074✔
135	}
136	}
137	}	2,475✔
138	}	2,715✔
139	#endif
140
141	#if defined(BOTAN_HAS_MODE_XTS)
142	if(spec.algo_name() == "XTS") {	4,868✔
143	if(direction == Cipher_Dir::Encryption) {	4,175✔
144	return std::make_unique<XTS_Encryption>(std::move(bc));	2,505✔
145	} else {
146	return std::make_unique<XTS_Decryption>(std::move(bc));	1,670✔
147	}
148	}
149	#endif
150
151	#if defined(BOTAN_HAS_MODE_CFB)
152	if(spec.algo_name() == "CFB") {	693✔
153	const size_t feedback_bits = spec.arg_as_integer(1, 8 * bc->block_size());	693✔
154	if(direction == Cipher_Dir::Encryption) {	693✔
155	return std::make_unique<CFB_Encryption>(std::move(bc), feedback_bits);	337✔
156	} else {
157	return std::make_unique<CFB_Decryption>(std::move(bc), feedback_bits);	356✔
158	}
159	}
160	#endif
161
162	#endif
163
164	return std::unique_ptr<Cipher_Mode>();	×
165	}	7,586✔
166
167	//static
168	std::vector<std::string> Cipher_Mode::providers(std::string_view algo_spec) {	1,249✔
169	const std::vector<std::string>& possible = {"base", "commoncrypto"};	1,249✔
170	std::vector<std::string> providers;	1,249✔
171	for(auto&& prov : possible) {	3,747✔
172	auto mode = Cipher_Mode::create(algo_spec, Cipher_Dir::Encryption, prov);	2,498✔
173	if(mode) {	2,498✔
174	providers.push_back(prov); // available	1,247✔
175	}
176	}	2,498✔
177	return providers;	1,249✔
178	}	1,249✔
179
180	} // namespace Botan

randombit / botan / 11336383167

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