5111374265

Committed 29 May 2023 11:19AM UTC coverage: 92.227% (+0.5%) from 91.723%

Build # 5111374265

Build Type

push

github

Committed by

randombit

Commit Message

Next release will be 3.1.0. Update release notes

Run Details

75588 of 81959 relevant lines covered (92.23%)

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97.73

/src/lib/stream/stream_cipher.cpp

/*
* Stream Ciphers
* (C) 2015,2016 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/stream_cipher.h>

#include <botan/exceptn.h>
#include <botan/internal/scan_name.h>

#if defined(BOTAN_HAS_CHACHA)
   #include <botan/internal/chacha.h>
#endif

#if defined(BOTAN_HAS_SALSA20)
   #include <botan/internal/salsa20.h>
#endif

#if defined(BOTAN_HAS_SHAKE_CIPHER)
   #include <botan/internal/shake_cipher.h>
#endif

#if defined(BOTAN_HAS_CTR_BE)
   #include <botan/internal/ctr.h>
#endif

#if defined(BOTAN_HAS_OFB)
   #include <botan/internal/ofb.h>
#endif

#if defined(BOTAN_HAS_RC4)
   #include <botan/internal/rc4.h>
#endif

namespace Botan {

std::unique_ptr<StreamCipher> StreamCipher::create(std::string_view algo_spec, std::string_view provider) {
#if defined(BOTAN_HAS_SHAKE_CIPHER)
   if(algo_spec == "SHAKE-128" || algo_spec == "SHAKE-128-XOF") {
      if(provider.empty() || provider == "base")
         return std::make_unique<SHAKE_128_Cipher>();
   }

   if(algo_spec == "SHAKE-256" || algo_spec == "SHAKE-256-XOF") {
      if(provider.empty() || provider == "base")
         return std::make_unique<SHAKE_256_Cipher>();
   }
#endif

#if defined(BOTAN_HAS_CHACHA)
   if(algo_spec == "ChaCha20") {
      if(provider.empty() || provider == "base")
         return std::make_unique<ChaCha>(20);
   }
#endif

#if defined(BOTAN_HAS_SALSA20)
   if(algo_spec == "Salsa20") {
      if(provider.empty() || provider == "base")
         return std::make_unique<Salsa20>();
   }
#endif

   const SCAN_Name req(algo_spec);

#if defined(BOTAN_HAS_CTR_BE)
   if((req.algo_name() == "CTR-BE" || req.algo_name() == "CTR") && req.arg_count_between(1, 2)) {
      if(provider.empty() || provider == "base") {
         auto cipher = BlockCipher::create(req.arg(0));
         if(cipher) {
            size_t ctr_size = req.arg_as_integer(1, cipher->block_size());
            return std::make_unique<CTR_BE>(std::move(cipher), ctr_size);
         }
      }
   }
#endif

#if defined(BOTAN_HAS_CHACHA)
   if(req.algo_name() == "ChaCha") {
      if(provider.empty() || provider == "base")
         return std::make_unique<ChaCha>(req.arg_as_integer(0, 20));
   }
#endif

#if defined(BOTAN_HAS_OFB)
   if(req.algo_name() == "OFB" && req.arg_count() == 1) {
      if(provider.empty() || provider == "base") {
         if(auto cipher = BlockCipher::create(req.arg(0)))
            return std::make_unique<OFB>(std::move(cipher));
      }
   }
#endif

#if defined(BOTAN_HAS_RC4)

   if(req.algo_name() == "RC4" || req.algo_name() == "ARC4" || req.algo_name() == "MARK-4") {
      const size_t skip = (req.algo_name() == "MARK-4") ? 256 : req.arg_as_integer(0, 0);

      if(provider.empty() || provider == "base") {
         return std::make_unique<RC4>(skip);
      }
   }

#endif

   BOTAN_UNUSED(req);
   BOTAN_UNUSED(provider);

   return nullptr;
}

//static
std::unique_ptr<StreamCipher> StreamCipher::create_or_throw(std::string_view algo, std::string_view provider) {
   if(auto sc = StreamCipher::create(algo, provider)) {
      return sc;
   }
   throw Lookup_Error("Stream cipher", algo, provider);
}

std::vector<std::string> StreamCipher::providers(std::string_view algo_spec) {
   return probe_providers_of<StreamCipher>(algo_spec);
}

size_t StreamCipher::default_iv_length() const { return 0; }

}  // namespace Botan

1	/*
2	* Stream Ciphers
3	* (C) 2015,2016 Jack Lloyd
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/stream_cipher.h>
9
10	#include <botan/exceptn.h>
11	#include <botan/internal/scan_name.h>
12
13	#if defined(BOTAN_HAS_CHACHA)
14	#include <botan/internal/chacha.h>
15	#endif
16
17	#if defined(BOTAN_HAS_SALSA20)
18	#include <botan/internal/salsa20.h>
19	#endif
20
21	#if defined(BOTAN_HAS_SHAKE_CIPHER)
22	#include <botan/internal/shake_cipher.h>
23	#endif
24
25	#if defined(BOTAN_HAS_CTR_BE)
26	#include <botan/internal/ctr.h>
27	#endif
28
29	#if defined(BOTAN_HAS_OFB)
30	#include <botan/internal/ofb.h>
31	#endif
32
33	#if defined(BOTAN_HAS_RC4)
34	#include <botan/internal/rc4.h>
35	#endif
36
37	namespace Botan {
38
39	std::unique_ptr<StreamCipher> StreamCipher::create(std::string_view algo_spec, std::string_view provider) {	134,124✔
40	#if defined(BOTAN_HAS_SHAKE_CIPHER)
41	if(algo_spec == "SHAKE-128" \|\| algo_spec == "SHAKE-128-XOF") {	139,838✔
42	if(provider.empty() \|\| provider == "base")	4,580✔
43	return std::make_unique<SHAKE_128_Cipher>();	2,290✔
44	}
45
46	if(algo_spec == "SHAKE-256" \|\| algo_spec == "SHAKE-256-XOF") {	135,258✔
47	if(provider.empty() \|\| provider == "base")	4,580✔
48	return std::make_unique<SHAKE_256_Cipher>();	2,290✔
49	}
50	#endif
51
52	#if defined(BOTAN_HAS_CHACHA)
53	if(algo_spec == "ChaCha20") {	129,682✔
54	if(provider.empty() \|\| provider == "base")	6✔
55	return std::make_unique<ChaCha>(20);	3✔
56	}
57	#endif
58
59	#if defined(BOTAN_HAS_SALSA20)
60	if(algo_spec == "Salsa20") {	129,711✔
61	if(provider.empty() \|\| provider == "base")	56✔
62	return std::make_unique<Salsa20>();	32✔
63	}
64	#endif
65
66	const SCAN_Name req(algo_spec);	129,509✔
67
68	#if defined(BOTAN_HAS_CTR_BE)
69	if((req.algo_name() == "CTR-BE" \|\| req.algo_name() == "CTR") && req.arg_count_between(1, 2)) {	607,231✔
70	if(provider.empty() \|\| provider == "base") {	94,940✔
71	auto cipher = BlockCipher::create(req.arg(0));	93,301✔
72	if(cipher) {	93,301✔
73	size_t ctr_size = req.arg_as_integer(1, cipher->block_size());	93,300✔
74	return std::make_unique<CTR_BE>(std::move(cipher), ctr_size);	93,300✔
75	}
76	}	93,301✔
77	}
78	#endif
79
80	#if defined(BOTAN_HAS_CHACHA)
81	if(req.algo_name() == "ChaCha") {	75,570✔
82	if(provider.empty() \|\| provider == "base")	16,418✔
83	return std::make_unique<ChaCha>(req.arg_as_integer(0, 20));	15,770✔
84	}
85	#endif
86
87	#if defined(BOTAN_HAS_OFB)
88	if(req.algo_name() == "OFB" && req.arg_count() == 1) {	61,317✔
89	if(provider.empty() \|\| provider == "base") {	68✔
90	if(auto cipher = BlockCipher::create(req.arg(0)))	68✔
91	return std::make_unique<OFB>(std::move(cipher));	34✔
92	}
93	}
94	#endif
95
96	#if defined(BOTAN_HAS_RC4)
97
98	if(req.algo_name() == "RC4" \|\| req.algo_name() == "ARC4" \|\| req.algo_name() == "MARK-4") {	125,024✔
99	const size_t skip = (req.algo_name() == "MARK-4") ? 256 : req.arg_as_integer(0, 0);	304✔
100
101	if(provider.empty() \|\| provider == "base") {	302✔
102	return std::make_unique<RC4>(skip);	152✔
103	}
104	}
105
106	#endif
107
108	BOTAN_UNUSED(req);	20,253✔
109	BOTAN_UNUSED(provider);	20,253✔
110
111	return nullptr;	20,253✔
112	}	129,509✔
113
114	//static
115	std::unique_ptr<StreamCipher> StreamCipher::create_or_throw(std::string_view algo, std::string_view provider) {	93,636✔
116	if(auto sc = StreamCipher::create(algo, provider)) {	93,636✔
117	return sc;	93,636✔
118	}	93,636✔
119	throw Lookup_Error("Stream cipher", algo, provider);	×
120	}
121
122	std::vector<std::string> StreamCipher::providers(std::string_view algo_spec) {	3,584✔
123	return probe_providers_of<StreamCipher>(algo_spec);	7,168✔
124	}
125
126	size_t StreamCipher::default_iv_length() const { return 0; }	4,730✔
127
128	} // namespace Botan

randombit / botan / 5111374265

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