5123321399

Committed 30 May 2023 04:06PM UTC coverage: 92.213% (+0.004%) from 92.209%

Build # 5123321399

Build Type

Pull #3558

github

Committed by

web-flow

Commit Message

Merge dd72f7389 into 057bcbc35

Pull Request Pull Request #3558: Add braces around all if/else statements

Run Details

75602 of 81986 relevant lines covered (92.21%)

11859779.3 hits per line

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93.55

/src/lib/pk_pad/emsa.cpp

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

#include <botan/internal/emsa.h>

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

#if defined(BOTAN_HAS_EMSA_X931)
   #include <botan/internal/emsa_x931.h>
#endif

#if defined(BOTAN_HAS_EMSA_PKCS1)
   #include <botan/internal/emsa_pkcs1.h>
#endif

#if defined(BOTAN_HAS_EMSA_PSSR)
   #include <botan/internal/pssr.h>
#endif

#if defined(BOTAN_HAS_EMSA_RAW)
   #include <botan/internal/emsa_raw.h>
#endif

#if defined(BOTAN_HAS_ISO_9796)
   #include <botan/internal/iso9796.h>
#endif

namespace Botan {

std::unique_ptr<EMSA> EMSA::create(std::string_view algo_spec) {
   SCAN_Name req(algo_spec);

#if defined(BOTAN_HAS_EMSA_PKCS1)
   if(req.algo_name() == "EMSA_PKCS1" || req.algo_name() == "PKCS1v15" || req.algo_name() == "EMSA-PKCS1-v1_5" ||
      req.algo_name() == "EMSA3") {
      if(req.arg_count() == 2 && req.arg(0) == "Raw") {
         return std::make_unique<EMSA_PKCS1v15_Raw>(req.arg(1));
      } else if(req.arg_count() == 1) {
         if(req.arg(0) == "Raw") {
            return std::make_unique<EMSA_PKCS1v15_Raw>();
         } else {
            if(auto hash = HashFunction::create(req.arg(0))) {
               return std::make_unique<EMSA_PKCS1v15>(std::move(hash));
            }
         }
      }
   }
#endif

#if defined(BOTAN_HAS_EMSA_PSSR)
   if(req.algo_name() == "PSS_Raw" || req.algo_name() == "PSSR_Raw") {
      if(req.arg_count_between(1, 3) && req.arg(1, "MGF1") == "MGF1") {
         if(auto hash = HashFunction::create(req.arg(0))) {
            if(req.arg_count() == 3) {
               const size_t salt_size = req.arg_as_integer(2, 0);
               return std::make_unique<PSSR_Raw>(std::move(hash), salt_size);
            } else {
               return std::make_unique<PSSR_Raw>(std::move(hash));
            }
         }
      }
   }

   if(req.algo_name() == "PSS" || req.algo_name() == "PSSR" || req.algo_name() == "EMSA-PSS" ||
      req.algo_name() == "PSS-MGF1" || req.algo_name() == "EMSA4") {
      if(req.arg_count_between(1, 3) && req.arg(1, "MGF1") == "MGF1") {
         if(auto hash = HashFunction::create(req.arg(0))) {
            if(req.arg_count() == 3) {
               const size_t salt_size = req.arg_as_integer(2, 0);
               return std::make_unique<PSSR>(std::move(hash), salt_size);
            } else {
               return std::make_unique<PSSR>(std::move(hash));
            }
         }
      }
   }
#endif

#if defined(BOTAN_HAS_ISO_9796)
   if(req.algo_name() == "ISO_9796_DS2") {
      if(req.arg_count_between(1, 3)) {
         if(auto hash = HashFunction::create(req.arg(0))) {
            const size_t salt_size = req.arg_as_integer(2, hash->output_length());
            const bool implicit = req.arg(1, "exp") == "imp";
            return std::make_unique<ISO_9796_DS2>(std::move(hash), implicit, salt_size);
         }
      }
   }
   //ISO-9796-2 DS 3 is deterministic and DS2 without a salt
   if(req.algo_name() == "ISO_9796_DS3") {
      if(req.arg_count_between(1, 2)) {
         if(auto hash = HashFunction::create(req.arg(0))) {
            const bool implicit = req.arg(1, "exp") == "imp";
            return std::make_unique<ISO_9796_DS3>(std::move(hash), implicit);
         }
      }
   }
#endif

#if defined(BOTAN_HAS_EMSA_X931)
   if(req.algo_name() == "EMSA_X931" || req.algo_name() == "EMSA2" || req.algo_name() == "X9.31") {
      if(req.arg_count() == 1) {
         if(auto hash = HashFunction::create(req.arg(0))) {
            return std::make_unique<EMSA_X931>(std::move(hash));
         }
      }
   }
#endif

#if defined(BOTAN_HAS_EMSA_RAW)
   if(req.algo_name() == "Raw") {
      if(req.arg_count() == 0) {
         return std::make_unique<EMSA_Raw>();
      } else {
         auto hash = HashFunction::create(req.arg(0));
         if(hash) {
            return std::make_unique<EMSA_Raw>(hash->output_length());
         }
      }
   }
#endif

   return nullptr;
}

std::unique_ptr<EMSA> EMSA::create_or_throw(std::string_view algo_spec) {
   auto emsa = EMSA::create(algo_spec);
   if(emsa) {
      return emsa;
   }
   throw Algorithm_Not_Found(algo_spec);
}

}  // namespace Botan

1	/*
2	* (C) 2015 Jack Lloyd
3	*
4	* Botan is released under the Simplified BSD License (see license.txt)
5	*/
6
7	#include <botan/internal/emsa.h>
8
9	#include <botan/exceptn.h>
10	#include <botan/hash.h>
11	#include <botan/internal/scan_name.h>
12
13	#if defined(BOTAN_HAS_EMSA_X931)
14	#include <botan/internal/emsa_x931.h>
15	#endif
16
17	#if defined(BOTAN_HAS_EMSA_PKCS1)
18	#include <botan/internal/emsa_pkcs1.h>
19	#endif
20
21	#if defined(BOTAN_HAS_EMSA_PSSR)
22	#include <botan/internal/pssr.h>
23	#endif
24
25	#if defined(BOTAN_HAS_EMSA_RAW)
26	#include <botan/internal/emsa_raw.h>
27	#endif
28
29	#if defined(BOTAN_HAS_ISO_9796)
30	#include <botan/internal/iso9796.h>
31	#endif
32
33	namespace Botan {
34
35	std::unique_ptr<EMSA> EMSA::create(std::string_view algo_spec) {	11,798✔
36	SCAN_Name req(algo_spec);	11,798✔
37
38	#if defined(BOTAN_HAS_EMSA_PKCS1)
39	if(req.algo_name() == "EMSA_PKCS1" \|\| req.algo_name() == "PKCS1v15" \|\| req.algo_name() == "EMSA-PKCS1-v1_5" \|\|	70,237✔
40	req.algo_name() == "EMSA3") {	31,941✔
41	if(req.arg_count() == 2 && req.arg(0) == "Raw") {	8,759✔
42	return std::make_unique<EMSA_PKCS1v15_Raw>(req.arg(1));	4✔
43	} else if(req.arg_count() == 1) {	8,751✔
44	if(req.arg(0) == "Raw") {	8,751✔
45	return std::make_unique<EMSA_PKCS1v15_Raw>();	12✔
46	} else {
47	if(auto hash = HashFunction::create(req.arg(0))) {	17,478✔
48	return std::make_unique<EMSA_PKCS1v15>(std::move(hash));	8,738✔
49	}	8,739✔
50	}
51	}
52	}
53	#endif
54
55	#if defined(BOTAN_HAS_EMSA_PSSR)
56	if(req.algo_name() == "PSS_Raw" \|\| req.algo_name() == "PSSR_Raw") {	12,176✔
57	if(req.arg_count_between(1, 3) && req.arg(1, "MGF1") == "MGF1") {	489✔
58	if(auto hash = HashFunction::create(req.arg(0))) {	326✔
59	if(req.arg_count() == 3) {	162✔
60	const size_t salt_size = req.arg_as_integer(2, 0);	161✔
61	return std::make_unique<PSSR_Raw>(std::move(hash), salt_size);	161✔
62	} else {
63	return std::make_unique<PSSR_Raw>(std::move(hash));	1✔
64	}
65	}	163✔
66	}
67	}
68
69	if(req.algo_name() == "PSS" \|\| req.algo_name() == "PSSR" \|\| req.algo_name() == "EMSA-PSS" \|\|	9,602✔
70	req.algo_name() == "PSS-MGF1" \|\| req.algo_name() == "EMSA4") {	12,380✔
71	if(req.arg_count_between(1, 3) && req.arg(1, "MGF1") == "MGF1") {	8,396✔
72	if(auto hash = HashFunction::create(req.arg(0))) {	5,596✔
73	if(req.arg_count() == 3) {	2,797✔
74	const size_t salt_size = req.arg_as_integer(2, 0);	2,342✔
75	return std::make_unique<PSSR>(std::move(hash), salt_size);	2,342✔
76	} else {
77	return std::make_unique<PSSR>(std::move(hash));	455✔
78	}
79	}	2,798✔
80	}
81	}
82	#endif
83
84	#if defined(BOTAN_HAS_ISO_9796)
85	if(req.algo_name() == "ISO_9796_DS2") {	170✔
86	if(req.arg_count_between(1, 3)) {	9✔
87	if(auto hash = HashFunction::create(req.arg(0))) {	18✔
88	const size_t salt_size = req.arg_as_integer(2, hash->output_length());	8✔
89	const bool implicit = req.arg(1, "exp") == "imp";	8✔
90	return std::make_unique<ISO_9796_DS2>(std::move(hash), implicit, salt_size);	8✔
91	}	9✔
92	}
93	}
94	//ISO-9796-2 DS 3 is deterministic and DS2 without a salt
95	if(req.algo_name() == "ISO_9796_DS3") {	154✔
96	if(req.arg_count_between(1, 2)) {	9✔
97	if(auto hash = HashFunction::create(req.arg(0))) {	18✔
98	const bool implicit = req.arg(1, "exp") == "imp";	8✔
99	return std::make_unique<ISO_9796_DS3>(std::move(hash), implicit);	8✔
100	}	9✔
101	}
102	}
103	#endif
104
105	#if defined(BOTAN_HAS_EMSA_X931)
106	if(req.algo_name() == "EMSA_X931" \|\| req.algo_name() == "EMSA2" \|\| req.algo_name() == "X9.31") {	304✔
107	if(req.arg_count() == 1) {	55✔
108	if(auto hash = HashFunction::create(req.arg(0))) {	110✔
109	return std::make_unique<EMSA_X931>(std::move(hash));	54✔
110	}	55✔
111	}
112	}
113	#endif
114
115	#if defined(BOTAN_HAS_EMSA_RAW)
116	if(req.algo_name() == "Raw") {	30✔
117	if(req.arg_count() == 0) {	7✔
118	return std::make_unique<EMSA_Raw>();	7✔
119	} else {
120	auto hash = HashFunction::create(req.arg(0));	×
121	if(hash) {	×
122	return std::make_unique<EMSA_Raw>(hash->output_length());	×
123	}
124	}	×
125	}
126	#endif
127
128	return nullptr;	8✔
129	}	11,798✔
130
131	std::unique_ptr<EMSA> EMSA::create_or_throw(std::string_view algo_spec) {	11,780✔
132	auto emsa = EMSA::create(algo_spec);	11,780✔
133	if(emsa) {	11,780✔
134	return emsa;	11,772✔
135	}
136	throw Algorithm_Not_Found(algo_spec);	8✔
137	}	8✔
138
139	} // namespace Botan

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