17355784936

Committed 31 Aug 2025 10:19AM UTC coverage: 90.681% (+0.01%) from 90.669%

Build # 17355784936

Build Type

Pull #5076

github

Committed by

web-flow

Commit Message

Merge 4bf7b9f0b into 73ef15481

Pull Request Pull Request #5076: Feature: Ascon-AEAD128

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96.83

/src/lib/modes/aead/aead.cpp

/*
* (C) 2013,2015 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/aead.h>

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

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

#if defined(BOTAN_HAS_ASCON_AEAD128)
   #include <botan/internal/ascon_aead128.h>
#endif

#if defined(BOTAN_HAS_AEAD_CCM)
   #include <botan/internal/ccm.h>
#endif

#if defined(BOTAN_HAS_AEAD_CHACHA20_POLY1305)
   #include <botan/internal/chacha20poly1305.h>
#endif

#if defined(BOTAN_HAS_AEAD_EAX)
   #include <botan/internal/eax.h>
#endif

#if defined(BOTAN_HAS_AEAD_GCM)
   #include <botan/internal/gcm.h>
#endif

#if defined(BOTAN_HAS_AEAD_OCB)
   #include <botan/internal/ocb.h>
#endif

#if defined(BOTAN_HAS_AEAD_SIV)
   #include <botan/internal/siv.h>
#endif

namespace Botan {

std::unique_ptr<AEAD_Mode> AEAD_Mode::create_or_throw(std::string_view algo,
                                                      Cipher_Dir dir,
                                                      std::string_view provider) {
   if(auto aead = AEAD_Mode::create(algo, dir, provider)) {
      return aead;
   }

   throw Lookup_Error("AEAD", algo, provider);
}

std::unique_ptr<AEAD_Mode> AEAD_Mode::create(std::string_view algo, Cipher_Dir dir, std::string_view provider) {
   BOTAN_UNUSED(provider);

#if defined(BOTAN_HAS_ASCON_AEAD128)
   if(algo == "Ascon-AEAD128") {
      if(dir == Cipher_Dir::Encryption) {
         return std::make_unique<Ascon_AEAD128_Encryption>();
      } else {
         return std::make_unique<Ascon_AEAD128_Decryption>();
      }
   }
#endif

#if defined(BOTAN_HAS_AEAD_CHACHA20_POLY1305)
   if(algo == "ChaCha20Poly1305") {
      if(dir == Cipher_Dir::Encryption) {
         return std::make_unique<ChaCha20Poly1305_Encryption>();
      } else {
         return std::make_unique<ChaCha20Poly1305_Decryption>();
      }
   }
#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<AEAD_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 AEAD_Mode::create(mode_name.str(), dir);
   }

#if defined(BOTAN_HAS_BLOCK_CIPHER)

   SCAN_Name req(algo);

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

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

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

   #if defined(BOTAN_HAS_AEAD_CCM)
   if(req.algo_name() == "CCM") {
      size_t tag_len = req.arg_as_integer(1, 16);
      size_t L_len = req.arg_as_integer(2, 3);
      if(dir == Cipher_Dir::Encryption) {
         return std::make_unique<CCM_Encryption>(std::move(bc), tag_len, L_len);
      } else {
         return std::make_unique<CCM_Decryption>(std::move(bc), tag_len, L_len);
      }
   }
   #endif

   #if defined(BOTAN_HAS_AEAD_GCM)
   if(req.algo_name() == "GCM") {
      size_t tag_len = req.arg_as_integer(1, 16);
      if(dir == Cipher_Dir::Encryption) {
         return std::make_unique<GCM_Encryption>(std::move(bc), tag_len);
      } else {
         return std::make_unique<GCM_Decryption>(std::move(bc), tag_len);
      }
   }
   #endif

   #if defined(BOTAN_HAS_AEAD_OCB)
   if(req.algo_name() == "OCB") {
      size_t tag_len = req.arg_as_integer(1, 16);
      if(dir == Cipher_Dir::Encryption) {
         return std::make_unique<OCB_Encryption>(std::move(bc), tag_len);
      } else {
         return std::make_unique<OCB_Decryption>(std::move(bc), tag_len);
      }
   }
   #endif

   #if defined(BOTAN_HAS_AEAD_EAX)
   if(req.algo_name() == "EAX") {
      size_t tag_len = req.arg_as_integer(1, bc->block_size());
      if(dir == Cipher_Dir::Encryption) {
         return std::make_unique<EAX_Encryption>(std::move(bc), tag_len);
      } else {
         return std::make_unique<EAX_Decryption>(std::move(bc), tag_len);
      }
   }
   #endif

   #if defined(BOTAN_HAS_AEAD_SIV)
   if(req.algo_name() == "SIV") {
      if(dir == Cipher_Dir::Encryption) {
         return std::make_unique<SIV_Encryption>(std::move(bc));
      } else {
         return std::make_unique<SIV_Decryption>(std::move(bc));
      }
   }
   #endif

#endif

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

}  // namespace Botan

1	/*
2	* (C) 2013,2015 Jack Lloyd
3	*
4	* Botan is released under the Simplified BSD License (see license.txt)
5	*/
6
7	#include <botan/aead.h>
8
9	#include <botan/assert.h>
10	#include <botan/internal/parsing.h>
11	#include <botan/internal/scan_name.h>
12	#include <sstream>
13
14	#if defined(BOTAN_HAS_BLOCK_CIPHER)
15	#include <botan/block_cipher.h>
16	#endif
17
18	#if defined(BOTAN_HAS_ASCON_AEAD128)
19	#include <botan/internal/ascon_aead128.h>
20	#endif
21
22	#if defined(BOTAN_HAS_AEAD_CCM)
23	#include <botan/internal/ccm.h>
24	#endif
25
26	#if defined(BOTAN_HAS_AEAD_CHACHA20_POLY1305)
27	#include <botan/internal/chacha20poly1305.h>
28	#endif
29
30	#if defined(BOTAN_HAS_AEAD_EAX)
31	#include <botan/internal/eax.h>
32	#endif
33
34	#if defined(BOTAN_HAS_AEAD_GCM)
35	#include <botan/internal/gcm.h>
36	#endif
37
38	#if defined(BOTAN_HAS_AEAD_OCB)
39	#include <botan/internal/ocb.h>
40	#endif
41
42	#if defined(BOTAN_HAS_AEAD_SIV)
43	#include <botan/internal/siv.h>
44	#endif
45
46	namespace Botan {
47
48	std::unique_ptr<AEAD_Mode> AEAD_Mode::create_or_throw(std::string_view algo,	6,325✔
49	Cipher_Dir dir,
50	std::string_view provider) {
51	if(auto aead = AEAD_Mode::create(algo, dir, provider)) {	6,325✔
52	return aead;	6,325✔
53	}	6,325✔
54
55	throw Lookup_Error("AEAD", algo, provider);	×
56	}
57
58	std::unique_ptr<AEAD_Mode> AEAD_Mode::create(std::string_view algo, Cipher_Dir dir, std::string_view provider) {	49,494✔
59	BOTAN_UNUSED(provider);	49,494✔
60
61	#if defined(BOTAN_HAS_ASCON_AEAD128)
62	if(algo == "Ascon-AEAD128") {	49,494✔
63	if(dir == Cipher_Dir::Encryption) {	484✔
64	return std::make_unique<Ascon_AEAD128_Encryption>();	242✔
65	} else {
66	return std::make_unique<Ascon_AEAD128_Decryption>();	242✔
67	}
68	}
69	#endif
70
71	#if defined(BOTAN_HAS_AEAD_CHACHA20_POLY1305)
72	if(algo == "ChaCha20Poly1305") {	49,010✔
73	if(dir == Cipher_Dir::Encryption) {	12,932✔
74	return std::make_unique<ChaCha20Poly1305_Encryption>();	6,468✔
75	} else {
76	return std::make_unique<ChaCha20Poly1305_Decryption>();	6,464✔
77	}
78	}
79	#endif
80
81	if(algo.find('/') != std::string::npos) {	36,078✔
82	const std::vector<std::string> algo_parts = split_on(algo, '/');	14,161✔
83	std::string_view cipher_name = algo_parts[0];	14,161✔
84	const std::vector<std::string> mode_info = parse_algorithm_name(algo_parts[1]);	14,161✔
85
86	if(mode_info.empty()) {	14,161✔
87	return std::unique_ptr<AEAD_Mode>();	×
88	}
89
90	std::ostringstream mode_name;	14,161✔
91
92	mode_name << mode_info[0] << '(' << cipher_name;	14,161✔
93	for(size_t i = 1; i < mode_info.size(); ++i) {	15,139✔
94	mode_name << ',' << mode_info[i];	978✔
95	}
96	for(size_t i = 2; i < algo_parts.size(); ++i) {	15,825✔
97	mode_name << ',' << algo_parts[i];	1,664✔
98	}
99	mode_name << ')';	14,161✔
100
101	return AEAD_Mode::create(mode_name.str(), dir);	14,161✔
102	}	14,161✔
103
104	#if defined(BOTAN_HAS_BLOCK_CIPHER)
105
106	SCAN_Name req(algo);	21,917✔
107
108	if(req.arg_count() == 0) {	21,917✔
109	return std::unique_ptr<AEAD_Mode>();	1✔
110	}
111
112	auto bc = BlockCipher::create(req.arg(0), provider);	21,916✔
113
114	if(!bc) {	21,916✔
115	return std::unique_ptr<AEAD_Mode>();	3✔
116	}
117
118	#if defined(BOTAN_HAS_AEAD_CCM)
119	if(req.algo_name() == "CCM") {	21,913✔
120	size_t tag_len = req.arg_as_integer(1, 16);	244✔
121	size_t L_len = req.arg_as_integer(2, 3);	244✔
122	if(dir == Cipher_Dir::Encryption) {	244✔
123	return std::make_unique<CCM_Encryption>(std::move(bc), tag_len, L_len);	122✔
124	} else {
125	return std::make_unique<CCM_Decryption>(std::move(bc), tag_len, L_len);	122✔
126	}
127	}
128	#endif
129
130	#if defined(BOTAN_HAS_AEAD_GCM)
131	if(req.algo_name() == "GCM") {	21,669✔
132	size_t tag_len = req.arg_as_integer(1, 16);	3,686✔
133	if(dir == Cipher_Dir::Encryption) {	3,686✔
134	return std::make_unique<GCM_Encryption>(std::move(bc), tag_len);	2,194✔
135	} else {
136	return std::make_unique<GCM_Decryption>(std::move(bc), tag_len);	1,492✔
137	}
138	}
139	#endif
140
141	#if defined(BOTAN_HAS_AEAD_OCB)
142	if(req.algo_name() == "OCB") {	17,983✔
143	size_t tag_len = req.arg_as_integer(1, 16);	292✔
144	if(dir == Cipher_Dir::Encryption) {	292✔
145	return std::make_unique<OCB_Encryption>(std::move(bc), tag_len);	146✔
146	} else {
147	return std::make_unique<OCB_Decryption>(std::move(bc), tag_len);	146✔
148	}
149	}
150	#endif
151
152	#if defined(BOTAN_HAS_AEAD_EAX)
153	if(req.algo_name() == "EAX") {	17,691✔
154	size_t tag_len = req.arg_as_integer(1, bc->block_size());	1,151✔
155	if(dir == Cipher_Dir::Encryption) {	1,151✔
156	return std::make_unique<EAX_Encryption>(std::move(bc), tag_len);	575✔
157	} else {
158	return std::make_unique<EAX_Decryption>(std::move(bc), tag_len);	576✔
159	}
160	}
161	#endif
162
163	#if defined(BOTAN_HAS_AEAD_SIV)
164	if(req.algo_name() == "SIV") {	16,540✔
165	if(dir == Cipher_Dir::Encryption) {	1,299✔
166	return std::make_unique<SIV_Encryption>(std::move(bc));	652✔
167	} else {
168	return std::make_unique<SIV_Decryption>(std::move(bc));	647✔
169	}
170	}
171	#endif
172
173	#endif
174
175	return std::unique_ptr<AEAD_Mode>();	15,241✔
176	}	21,917✔
177
178	} // namespace Botan

randombit / botan / 17355784936

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