12805544433

Committed 16 Jan 2025 09:08AM UTC coverage: 90.876% (-0.4%) from 91.245%

Build # 12805544433

Build Type

Pull #4540

github

Committed by

web-flow

Commit Message

Merge cc1ceff51 into 9b798efbb

Pull Request Pull Request #4540: PKCS #11 Version 3.2 Support

Run Details

93425 of 102805 relevant lines covered (90.88%)

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85.0

/src/cli/cli_rng.cpp

/*
* (C) 2015,2017 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "cli.h"

#include <botan/hex.h>
#include <botan/rng.h>
#include <botan/internal/parsing.h>

#if defined(BOTAN_HAS_ENTROPY_SOURCE)
   #include <botan/entropy_src.h>
#endif

#if defined(BOTAN_HAS_AUTO_SEEDING_RNG)
   #include <botan/auto_rng.h>
#endif

#if defined(BOTAN_HAS_ESDM_RNG)
   #include <botan/esdm_rng.h>
#endif

#if defined(BOTAN_HAS_SYSTEM_RNG)
   #include <botan/system_rng.h>
#endif

#if defined(BOTAN_HAS_PROCESSOR_RNG)
   #include <botan/processor_rng.h>
#endif

#if defined(BOTAN_HAS_HMAC_DRBG)
   #include <botan/hmac_drbg.h>
#endif

namespace Botan_CLI {

std::shared_ptr<Botan::RandomNumberGenerator> cli_make_rng(const std::string& rng_type,
                                                           const std::string& hex_drbg_seed) {
#if defined(BOTAN_HAS_SYSTEM_RNG)
   if(rng_type == "system" || rng_type.empty()) {
      return std::make_shared<Botan::System_RNG>();
   }
#endif

#if defined(BOTAN_HAS_ESDM_RNG)
   if(rng_type == "esdm-full") {
      return std::make_shared<Botan::ESDM_RNG>(false);
   }
   if(rng_type == "esdm-pr") {
      return std::make_shared<Botan::ESDM_RNG>(true);
   }
#endif

   const std::vector<uint8_t> drbg_seed = Botan::hex_decode(hex_drbg_seed);

#if defined(BOTAN_HAS_AUTO_SEEDING_RNG)
   if(rng_type == "auto" || rng_type == "entropy" || rng_type.empty()) {
      std::shared_ptr<Botan::RandomNumberGenerator> rng;

      if(rng_type == "entropy") {
   #if defined(BOTAN_HAS_ENTROPY_SOURCE)
         rng = std::make_shared<Botan::AutoSeeded_RNG>(Botan::Entropy_Sources::global_sources());
   #else
         throw CLI_Error_Unsupported("Entropy sources not included in this build");
   #endif
      } else {
         rng = std::make_shared<Botan::AutoSeeded_RNG>();
      }

      if(!drbg_seed.empty()) {
         rng->add_entropy(drbg_seed.data(), drbg_seed.size());
      }
      return rng;
   }
#endif

#if defined(BOTAN_HAS_HMAC_DRBG) && defined(BOTAN_HAS_SHA2_32)
   if(rng_type == "drbg" || (rng_type.empty() && drbg_seed.empty() == false)) {
      auto mac = Botan::MessageAuthenticationCode::create_or_throw("HMAC(SHA-256)");
      auto rng = std::make_shared<Botan::HMAC_DRBG>(std::move(mac));
      rng->add_entropy(drbg_seed.data(), drbg_seed.size());

      if(rng->is_seeded() == false) {
         throw CLI_Error("For " + rng->name() + " a seed of at least " + std::to_string(rng->security_level() / 8) +
                         " bytes must be provided");
      }

      return rng;
   }
#endif

#if defined(BOTAN_HAS_PROCESSOR_RNG)
   if(rng_type == "rdrand" || rng_type == "cpu" || rng_type.empty()) {
      if(Botan::Processor_RNG::available()) {
         return std::make_shared<Botan::Processor_RNG>();
      } else if(rng_type.empty() == false) {
         throw CLI_Error("RNG instruction not supported on this processor");
      }
   }
#endif

   if(rng_type.empty()) {
      throw CLI_Error_Unsupported("No random number generator seems to be available in the current build");
   } else {
      throw CLI_Error_Unsupported("RNG", rng_type);
   }
}

class RNG final : public Command {
   public:
      RNG() :
            Command(
               "rng --format=hex --system --esdm-full --esdm-pr --rdrand --auto --entropy --drbg --drbg-seed= *bytes") {
      }

      std::string group() const override { return "misc"; }

      std::string description() const override { return "Sample random bytes from the specified rng"; }

      void go() override {
         const std::string format = get_arg("format");
         std::string type = get_arg("rng-type");

         if(type.empty()) {
            for(std::string flag : {"system", "rdrand", "auto", "entropy", "drbg", "esdm-full", "esdm-pr"}) {
               if(flag_set(flag)) {
                  type = flag;
                  break;
               }
            }
         }

         const std::string drbg_seed = get_arg("drbg-seed");
         auto rng = cli_make_rng(type, drbg_seed);

         for(const std::string& req : get_arg_list("bytes")) {
            const size_t req_len = Botan::to_u32bit(req);
            const auto blob = rng->random_vec(req_len);

            if(format == "binary" || format == "raw") {
               write_output(blob);
            } else {
               output() << format_blob(format, blob) << "\n";
            }
         }
      }
};

BOTAN_REGISTER_COMMAND("rng", RNG);

}  // namespace Botan_CLI

1	/*
2	* (C) 2015,2017 Jack Lloyd
3	*
4	* Botan is released under the Simplified BSD License (see license.txt)
5	*/
6
7	#include "cli.h"
8
9	#include <botan/hex.h>
10	#include <botan/rng.h>
11	#include <botan/internal/parsing.h>
12
13	#if defined(BOTAN_HAS_ENTROPY_SOURCE)
14	#include <botan/entropy_src.h>
15	#endif
16
17	#if defined(BOTAN_HAS_AUTO_SEEDING_RNG)
18	#include <botan/auto_rng.h>
19	#endif
20
21	#if defined(BOTAN_HAS_ESDM_RNG)
22	#include <botan/esdm_rng.h>
23	#endif
24
25	#if defined(BOTAN_HAS_SYSTEM_RNG)
26	#include <botan/system_rng.h>
27	#endif
28
29	#if defined(BOTAN_HAS_PROCESSOR_RNG)
30	#include <botan/processor_rng.h>
31	#endif
32
33	#if defined(BOTAN_HAS_HMAC_DRBG)
34	#include <botan/hmac_drbg.h>
35	#endif
36
37	namespace Botan_CLI {
38
39	std::shared_ptr<Botan::RandomNumberGenerator> cli_make_rng(const std::string& rng_type,	154✔
40	const std::string& hex_drbg_seed) {
41	#if defined(BOTAN_HAS_SYSTEM_RNG)
42	if(rng_type == "system" \|\| rng_type.empty()) {	154✔
43	return std::make_shared<Botan::System_RNG>();	28✔
44	}
45	#endif
46
47	#if defined(BOTAN_HAS_ESDM_RNG)
48	if(rng_type == "esdm-full") {	126✔
49	return std::make_shared<Botan::ESDM_RNG>(false);	1✔
50	}
51	if(rng_type == "esdm-pr") {	125✔
52	return std::make_shared<Botan::ESDM_RNG>(true);	1✔
53	}
54	#endif
55
56	const std::vector<uint8_t> drbg_seed = Botan::hex_decode(hex_drbg_seed);	124✔
57
58	#if defined(BOTAN_HAS_AUTO_SEEDING_RNG)
59	if(rng_type == "auto" \|\| rng_type == "entropy" \|\| rng_type.empty()) {	124✔
60	std::shared_ptr<Botan::RandomNumberGenerator> rng;	2✔
61
62	if(rng_type == "entropy") {	2✔
63	#if defined(BOTAN_HAS_ENTROPY_SOURCE)
64	rng = std::make_shared<Botan::AutoSeeded_RNG>(Botan::Entropy_Sources::global_sources());	1✔
65	#else
66	throw CLI_Error_Unsupported("Entropy sources not included in this build");
67	#endif
68	} else {
69	rng = std::make_shared<Botan::AutoSeeded_RNG>();	1✔
70	}
71
72	if(!drbg_seed.empty()) {	2✔
73	rng->add_entropy(drbg_seed.data(), drbg_seed.size());	×
74	}
75	return rng;	2✔
76	}	2✔
77	#endif
78
79	#if defined(BOTAN_HAS_HMAC_DRBG) && defined(BOTAN_HAS_SHA2_32)
80	if(rng_type == "drbg" \|\| (rng_type.empty() && drbg_seed.empty() == false)) {	122✔
81	auto mac = Botan::MessageAuthenticationCode::create_or_throw("HMAC(SHA-256)");	121✔
82	auto rng = std::make_shared<Botan::HMAC_DRBG>(std::move(mac));	121✔
83	rng->add_entropy(drbg_seed.data(), drbg_seed.size());	121✔
84
85	if(rng->is_seeded() == false) {	121✔
86	throw CLI_Error("For " + rng->name() + " a seed of at least " + std::to_string(rng->security_level() / 8) +	×
87	" bytes must be provided");	×
88	}
89
90	return rng;	121✔
91	}	121✔
92	#endif
93
94	#if defined(BOTAN_HAS_PROCESSOR_RNG)
95	if(rng_type == "rdrand" \|\| rng_type == "cpu" \|\| rng_type.empty()) {	1✔
96	if(Botan::Processor_RNG::available()) {	1✔
97	return std::make_shared<Botan::Processor_RNG>();	1✔
98	} else if(rng_type.empty() == false) {	×
99	throw CLI_Error("RNG instruction not supported on this processor");	×
100	}
101	}
102	#endif
103
104	if(rng_type.empty()) {	×
105	throw CLI_Error_Unsupported("No random number generator seems to be available in the current build");	×
106	} else {
107	throw CLI_Error_Unsupported("RNG", rng_type);	×
108	}
109	}	124✔
110
111	class RNG final : public Command {
112	public:
113	RNG() :	18✔
114	Command(
115	"rng --format=hex --system --esdm-full --esdm-pr --rdrand --auto --entropy --drbg --drbg-seed= *bytes") {	18✔
116	}	18✔
117
118	std::string group() const override { return "misc"; }	1✔
119
120	std::string description() const override { return "Sample random bytes from the specified rng"; }	1✔
121
122	void go() override {	17✔
123	const std::string format = get_arg("format");	17✔
124	std::string type = get_arg("rng-type");	17✔
125
126	if(type.empty()) {	17✔
127	for(std::string flag : {"system", "rdrand", "auto", "entropy", "drbg", "esdm-full", "esdm-pr"}) {	23✔
128	if(flag_set(flag)) {	23✔
129	type = flag;	6✔
130	break;	6✔
131	}
132	}	23✔
133	}
134
135	const std::string drbg_seed = get_arg("drbg-seed");	17✔
136	auto rng = cli_make_rng(type, drbg_seed);	17✔
137
138	for(const std::string& req : get_arg_list("bytes")) {	36✔
139	const size_t req_len = Botan::to_u32bit(req);	19✔
140	const auto blob = rng->random_vec(req_len);	19✔
141
142	if(format == "binary" \|\| format == "raw") {	19✔
143	write_output(blob);	×
144	} else {
145	output() << format_blob(format, blob) << "\n";	38✔
146	}
147	}	36✔
148	}	17✔
149	};
150
151	BOTAN_REGISTER_COMMAND("rng", RNG);	18✔
152
153	} // namespace Botan_CLI

randombit / botan / 12805544433

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