11300480493

Committed 11 Oct 2024 11:12PM UTC coverage: 91.113% (+0.1%) from 90.981%

Build # 11300480493

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github

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Commit Message

Merge pull request #4367 from randombit/jack/refactor-speed-pk

Refactor public key related performance test code

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95.52

/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 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,	21,314✔
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 defined(BOTAN_HAS_STREAM_CIPHER)
65	if(auto sc = StreamCipher::create(algo)) {	21,314✔
66	return std::make_unique<Stream_Cipher_Mode>(std::move(sc));	57✔
67	}	57✔
68	#endif
69
70	#if defined(BOTAN_HAS_AEAD_MODES)
71	if(auto aead = AEAD_Mode::create(algo, direction)) {	21,257✔
72	return aead;	3,855✔
73	}	3,855✔
74	#endif
75
76	if(algo.find('/') != std::string::npos) {	17,402✔
77	const std::vector<std::string> algo_parts = split_on(algo, '/');	8,574✔
78	std::string_view cipher_name = algo_parts[0];	8,574✔
79	const std::vector<std::string> mode_info = parse_algorithm_name(algo_parts[1]);	8,574✔
80
81	if(mode_info.empty()) {	8,574✔
82	return std::unique_ptr<Cipher_Mode>();	×
83	}
84
85	std::ostringstream mode_name;	8,574✔
86
87	mode_name << mode_info[0] << '(' << cipher_name;	8,574✔
88	for(size_t i = 1; i < mode_info.size(); ++i) {	8,852✔
89	mode_name << ',' << mode_info[i];	278✔
90	}
91	for(size_t i = 2; i < algo_parts.size(); ++i) {	10,567✔
92	mode_name << ',' << algo_parts[i];	1,993✔
93	}
94	mode_name << ')';	8,574✔
95
96	return Cipher_Mode::create(mode_name.str(), direction, provider);	8,574✔
97	}	8,574✔
98
99	#if defined(BOTAN_HAS_BLOCK_CIPHER)
100
101	SCAN_Name spec(algo);	8,828✔
102
103	if(spec.arg_count() == 0) {	8,828✔
104	return std::unique_ptr<Cipher_Mode>();	×
105	}
106
107	auto bc = BlockCipher::create(spec.arg(0), provider);	8,828✔
108
109	if(!bc) {	8,828✔
110	return std::unique_ptr<Cipher_Mode>();	1,245✔
111	}
112
113	#if defined(BOTAN_HAS_MODE_CBC)
114	if(spec.algo_name() == "CBC") {	7,583✔
115	const std::string padding = spec.arg(1, "PKCS7");	2,715✔
116
117	if(padding == "CTS") {	2,715✔
118	if(direction == Cipher_Dir::Encryption) {	240✔
119	return std::make_unique<CTS_Encryption>(std::move(bc));	144✔
120	} else {
121	return std::make_unique<CTS_Decryption>(std::move(bc));	96✔
122	}
123	} else {
124	auto pad = BlockCipherModePaddingMethod::create(padding);	2,475✔
125
126	if(pad) {	2,475✔
127	if(direction == Cipher_Dir::Encryption) {	2,475✔
128	return std::make_unique<CBC_Encryption>(std::move(bc), std::move(pad));	1,401✔
129	} else {
130	return std::make_unique<CBC_Decryption>(std::move(bc), std::move(pad));	1,074✔
131	}
132	}
133	}	2,475✔
134	}	2,715✔
135	#endif
136
137	#if defined(BOTAN_HAS_MODE_XTS)
138	if(spec.algo_name() == "XTS") {	4,868✔
139	if(direction == Cipher_Dir::Encryption) {	4,175✔
140	return std::make_unique<XTS_Encryption>(std::move(bc));	2,505✔
141	} else {
142	return std::make_unique<XTS_Decryption>(std::move(bc));	1,670✔
143	}
144	}
145	#endif
146
147	#if defined(BOTAN_HAS_MODE_CFB)
148	if(spec.algo_name() == "CFB") {	693✔
149	const size_t feedback_bits = spec.arg_as_integer(1, 8 * bc->block_size());	693✔
150	if(direction == Cipher_Dir::Encryption) {	693✔
151	return std::make_unique<CFB_Encryption>(std::move(bc), feedback_bits);	337✔
152	} else {
153	return std::make_unique<CFB_Decryption>(std::move(bc), feedback_bits);	356✔
154	}
155	}
156	#endif
157
158	#endif
159
160	return std::unique_ptr<Cipher_Mode>();	×
161	}	8,828✔
162
163	//static
164	std::vector<std::string> Cipher_Mode::providers(std::string_view algo_spec) {	1,245✔
165	const std::vector<std::string>& possible = {"base", "commoncrypto"};	1,245✔
166	std::vector<std::string> providers;	1,245✔
167	for(auto&& prov : possible) {	3,735✔
168	auto mode = Cipher_Mode::create(algo_spec, Cipher_Dir::Encryption, prov);	2,490✔
169	if(mode) {	2,490✔
170	providers.push_back(prov); // available	1,247✔
171	}
172	}	2,490✔
173	return providers;	1,245✔
174	}	1,245✔
175
176	} // namespace Botan

randombit / botan / 11300480493

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