6207930573

Committed 16 Sep 2023 02:29PM UTC coverage: 91.716% (-0.002%) from 91.718%

Build # 6207930573

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push

github

Committed by

web-flow

Commit Message

Merge pull request #3689 from Rohde-Schwarz/feature/kmac

Feature: KMAC-128/256, NIST SP.800-185

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79185 of 86337 relevant lines covered (91.72%)

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91.8

/src/lib/mac/mac.cpp

/*
* Message Authentication Code base class
* (C) 1999-2008 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/mac.h>

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

#if defined(BOTAN_HAS_CMAC)
   #include <botan/internal/cmac.h>
#endif

#if defined(BOTAN_HAS_GMAC)
   #include <botan/block_cipher.h>
   #include <botan/internal/gmac.h>
#endif

#if defined(BOTAN_HAS_HMAC)
   #include <botan/hash.h>
   #include <botan/internal/hmac.h>
#endif

#if defined(BOTAN_HAS_POLY1305)
   #include <botan/internal/poly1305.h>
#endif

#if defined(BOTAN_HAS_SIPHASH)
   #include <botan/internal/siphash.h>
#endif

#if defined(BOTAN_HAS_ANSI_X919_MAC)
   #include <botan/internal/x919_mac.h>
#endif

#if defined(BOTAN_HAS_BLAKE2BMAC)
   #include <botan/internal/blake2bmac.h>
#endif

#if defined(BOTAN_HAS_KMAC)
   #include <botan/internal/kmac.h>
#endif

namespace Botan {

std::unique_ptr<MessageAuthenticationCode> MessageAuthenticationCode::create(std::string_view algo_spec,
                                                                             std::string_view provider) {
   const SCAN_Name req(algo_spec);

#if defined(BOTAN_HAS_BLAKE2BMAC)
   if(req.algo_name() == "Blake2b" || req.algo_name() == "BLAKE2b") {
      return std::make_unique<BLAKE2bMAC>(req.arg_as_integer(0, 512));
   }
#endif

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

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

#if defined(BOTAN_HAS_POLY1305)
   if(req.algo_name() == "Poly1305" && req.arg_count() == 0) {
      if(provider.empty() || provider == "base") {
         return std::make_unique<Poly1305>();
      }
   }
#endif

#if defined(BOTAN_HAS_SIPHASH)
   if(req.algo_name() == "SipHash") {
      if(provider.empty() || provider == "base") {
         return std::make_unique<SipHash>(req.arg_as_integer(0, 2), req.arg_as_integer(1, 4));
      }
   }
#endif

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

#if defined(BOTAN_HAS_ANSI_X919_MAC)
   if(req.algo_name() == "X9.19-MAC") {
      if(provider.empty() || provider == "base") {
         return std::make_unique<ANSI_X919_MAC>();
      }
   }
#endif

#if defined(BOTAN_HAS_KMAC)
   if(req.algo_name() == "KMAC-128") {
      if(provider.empty() || provider == "base") {
         if(req.arg_count() != 1) {
            throw Invalid_Argument(
               "invalid algorithm specification for KMAC-128: need exactly one argument for output bit length");
         }
         return std::make_unique<KMAC128>(req.arg_as_integer(0));
      }
   }

   if(req.algo_name() == "KMAC-256") {
      if(provider.empty() || provider == "base") {
         if(req.arg_count() != 1) {
            throw Invalid_Argument(
               "invalid algorithm specification for KMAC-256: need exactly one argument for output bit length");
         }
         return std::make_unique<KMAC256>(req.arg_as_integer(0));
      }
   }
#endif

   BOTAN_UNUSED(req);
   BOTAN_UNUSED(provider);

   return nullptr;
}

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

//static
std::unique_ptr<MessageAuthenticationCode> MessageAuthenticationCode::create_or_throw(std::string_view algo,
                                                                                      std::string_view provider) {
   if(auto mac = MessageAuthenticationCode::create(algo, provider)) {
      return mac;
   }
   throw Lookup_Error("MAC", algo, provider);
}

void MessageAuthenticationCode::start_msg(const uint8_t nonce[], size_t nonce_len) {
   BOTAN_UNUSED(nonce);
   if(nonce_len > 0) {
      throw Invalid_IV_Length(name(), nonce_len);
   }
}

/*
* Default (deterministic) MAC verification operation
*/
bool MessageAuthenticationCode::verify_mac_result(const uint8_t mac[], size_t length) {
   secure_vector<uint8_t> our_mac = final();

   if(our_mac.size() != length) {
      return false;
   }

   return constant_time_compare(our_mac.data(), mac, length);
}

}  // namespace Botan

1	/*
2	* Message Authentication Code base class
3	* (C) 1999-2008 Jack Lloyd
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/mac.h>
9
10	#include <botan/exceptn.h>
11	#include <botan/mem_ops.h>
12	#include <botan/internal/scan_name.h>
13
14	#if defined(BOTAN_HAS_CMAC)
15	#include <botan/internal/cmac.h>
16	#endif
17
18	#if defined(BOTAN_HAS_GMAC)
19	#include <botan/block_cipher.h>
20	#include <botan/internal/gmac.h>
21	#endif
22
23	#if defined(BOTAN_HAS_HMAC)
24	#include <botan/hash.h>
25	#include <botan/internal/hmac.h>
26	#endif
27
28	#if defined(BOTAN_HAS_POLY1305)
29	#include <botan/internal/poly1305.h>
30	#endif
31
32	#if defined(BOTAN_HAS_SIPHASH)
33	#include <botan/internal/siphash.h>
34	#endif
35
36	#if defined(BOTAN_HAS_ANSI_X919_MAC)
37	#include <botan/internal/x919_mac.h>
38	#endif
39
40	#if defined(BOTAN_HAS_BLAKE2BMAC)
41	#include <botan/internal/blake2bmac.h>
42	#endif
43
44	#if defined(BOTAN_HAS_KMAC)
45	#include <botan/internal/kmac.h>
46	#endif
47
48	namespace Botan {
49
50	std::unique_ptr<MessageAuthenticationCode> MessageAuthenticationCode::create(std::string_view algo_spec,	30,936✔
51	std::string_view provider) {
52	const SCAN_Name req(algo_spec);	30,936✔
53
54	#if defined(BOTAN_HAS_BLAKE2BMAC)
55	if(req.algo_name() == "Blake2b" \|\| req.algo_name() == "BLAKE2b") {	30,936✔
56	return std::make_unique<BLAKE2bMAC>(req.arg_as_integer(0, 512));	546✔
57	}
58	#endif
59
60	#if defined(BOTAN_HAS_GMAC)
61	if(req.algo_name() == "GMAC" && req.arg_count() == 1) {	30,390✔
62	if(provider.empty() \|\| provider == "base") {	241✔
63	if(auto bc = BlockCipher::create(req.arg(0))) {	242✔
64	return std::make_unique<GMAC>(std::move(bc));	121✔
65	}	121✔
66	}
67	}
68	#endif
69
70	#if defined(BOTAN_HAS_HMAC)
71	if(req.algo_name() == "HMAC" && req.arg_count() == 1) {	30,269✔
72	if(provider.empty() \|\| provider == "base") {	16,493✔
73	if(auto hash = HashFunction::create(req.arg(0))) {	32,688✔
74	return std::make_unique<HMAC>(std::move(hash));	14,888✔
75	}	16,344✔
76	}
77	}
78	#endif
79
80	#if defined(BOTAN_HAS_POLY1305)
81	if(req.algo_name() == "Poly1305" && req.arg_count() == 0) {	15,381✔
82	if(provider.empty() \|\| provider == "base") {	13,426✔
83	return std::make_unique<Poly1305>();	13,270✔
84	}
85	}
86	#endif
87
88	#if defined(BOTAN_HAS_SIPHASH)
89	if(req.algo_name() == "SipHash") {	2,111✔
90	if(provider.empty() \|\| provider == "base") {	237✔
91	return std::make_unique<SipHash>(req.arg_as_integer(0, 2), req.arg_as_integer(1, 4));	119✔
92	}
93	}
94	#endif
95
96	#if defined(BOTAN_HAS_CMAC)
97	if((req.algo_name() == "CMAC" \|\| req.algo_name() == "OMAC") && req.arg_count() == 1) {	1,992✔
98	if(provider.empty() \|\| provider == "base") {	544✔
99	if(auto bc = BlockCipher::create(req.arg(0))) {	936✔
100	return std::make_unique<CMAC>(std::move(bc));	468✔
101	}	468✔
102	}
103	}
104	#endif
105
106	#if defined(BOTAN_HAS_ANSI_X919_MAC)
107	if(req.algo_name() == "X9.19-MAC") {	1,524✔
108	if(provider.empty() \|\| provider == "base") {	24✔
109	return std::make_unique<ANSI_X919_MAC>();	12✔
110	}
111	}
112	#endif
113
114	#if defined(BOTAN_HAS_KMAC)
115	if(req.algo_name() == "KMAC-128") {	1,512✔
116	if(provider.empty() \|\| provider == "base") {	12✔
117	if(req.arg_count() != 1) {	6✔
118	throw Invalid_Argument(	×
119	"invalid algorithm specification for KMAC-128: need exactly one argument for output bit length");	×
120	}
121	return std::make_unique<KMAC128>(req.arg_as_integer(0));	6✔
122	}
123	}
124
125	if(req.algo_name() == "KMAC-256") {	1,506✔
126	if(provider.empty() \|\| provider == "base") {	12✔
127	if(req.arg_count() != 1) {	6✔
128	throw Invalid_Argument(	×
129	"invalid algorithm specification for KMAC-256: need exactly one argument for output bit length");	×
130	}
131	return std::make_unique<KMAC256>(req.arg_as_integer(0));	6✔
132	}
133	}
134	#endif
135
136	BOTAN_UNUSED(req);	1,500✔
137	BOTAN_UNUSED(provider);	1,500✔
138
139	return nullptr;	1,500✔
140	}	30,936✔
141
142	std::vector<std::string> MessageAuthenticationCode::providers(std::string_view algo_spec) {	638✔
143	return probe_providers_of<MessageAuthenticationCode>(algo_spec);	1,276✔
144	}
145
146	//static
147	std::unique_ptr<MessageAuthenticationCode> MessageAuthenticationCode::create_or_throw(std::string_view algo,	6,234✔
148	std::string_view provider) {
149	if(auto mac = MessageAuthenticationCode::create(algo, provider)) {	6,234✔
150	return mac;	6,233✔
151	}	6,233✔
152	throw Lookup_Error("MAC", algo, provider);	1✔
153	}
154
155	void MessageAuthenticationCode::start_msg(const uint8_t nonce[], size_t nonce_len) {	4,989✔
156	BOTAN_UNUSED(nonce);	4,989✔
157	if(nonce_len > 0) {	4,989✔
158	throw Invalid_IV_Length(name(), nonce_len);	×
159	}
160	}	4,989✔
161
162	/*
163	* Default (deterministic) MAC verification operation
164	*/
165	bool MessageAuthenticationCode::verify_mac_result(const uint8_t mac[], size_t length) {	1,749✔
166	secure_vector<uint8_t> our_mac = final();	1,749✔
167
168	if(our_mac.size() != length) {	1,749✔
169	return false;
170	}
171
172	return constant_time_compare(our_mac.data(), mac, length);	1,747✔
173	}	1,749✔
174
175	} // namespace Botan

randombit / botan / 6207930573

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