21753596263

Committed 06 Feb 2026 02:13PM UTC coverage: 90.063% (-0.01%) from 90.073%

Build # 21753596263

Build Type

Pull #5289

github

Committed by

web-flow

Commit Message

Merge 587099284 into 8ea0ca252

Pull Request Pull Request #5289: Further misc header reductions, forward declarations, etc

Run Details

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84.13

/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_JITTER_RNG)
   #include <botan/jitter_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>
   #include <botan/mac.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

#if defined(BOTAN_HAS_JITTER_RNG)
   if(rng_type == "jitter") {
      return std::make_shared<Botan::Jitter_RNG>();
   }
#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 --jitter --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()) {
            const std::vector<std::string> known_rng_types = {
               "system", "rdrand", "auto", "entropy", "drbg", "esdm-full", "esdm-pr", "jitter"};
            for(const auto& flag : known_rng_types) {
               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_JITTER_RNG)
22	#include <botan/jitter_rng.h>
23	#endif
24
25	#if defined(BOTAN_HAS_ESDM_RNG)
26	#include <botan/esdm_rng.h>
27	#endif
28
29	#if defined(BOTAN_HAS_SYSTEM_RNG)
30	#include <botan/system_rng.h>
31	#endif
32
33	#if defined(BOTAN_HAS_PROCESSOR_RNG)
34	#include <botan/processor_rng.h>
35	#endif
36
37	#if defined(BOTAN_HAS_HMAC_DRBG)
38	#include <botan/hmac_drbg.h>
39	#include <botan/mac.h>
40	#endif
41
42	namespace Botan_CLI {
43
44	std::shared_ptr<Botan::RandomNumberGenerator> cli_make_rng(const std::string& rng_type,	132✔
45	const std::string& hex_drbg_seed) {
46	#if defined(BOTAN_HAS_SYSTEM_RNG)
47	if(rng_type == "system" \|\| rng_type.empty()) {	132✔
48	return std::make_shared<Botan::System_RNG>();	28✔
49	}
50	#endif
51
52	#if defined(BOTAN_HAS_ESDM_RNG)
53	if(rng_type == "esdm-full") {	104✔
54	return std::make_shared<Botan::ESDM_RNG>(false);	1✔
55	}
56	if(rng_type == "esdm-pr") {	103✔
57	return std::make_shared<Botan::ESDM_RNG>(true);	1✔
58	}
59	#endif
60
61	#if defined(BOTAN_HAS_JITTER_RNG)
62	if(rng_type == "jitter") {	102✔
63	return std::make_shared<Botan::Jitter_RNG>();	×
64	}
65	#endif
66
67	const std::vector<uint8_t> drbg_seed = Botan::hex_decode(hex_drbg_seed);	102✔
68
69	#if defined(BOTAN_HAS_AUTO_SEEDING_RNG)
70	if(rng_type == "auto" \|\| rng_type == "entropy" \|\| rng_type.empty()) {	102✔
71	std::shared_ptr<Botan::RandomNumberGenerator> rng;	2✔
72
73	if(rng_type == "entropy") {	2✔
74	#if defined(BOTAN_HAS_ENTROPY_SOURCE)
75	rng = std::make_shared<Botan::AutoSeeded_RNG>(Botan::Entropy_Sources::global_sources());	1✔
76	#else
77	throw CLI_Error_Unsupported("Entropy sources not included in this build");
78	#endif
79	} else {
80	rng = std::make_shared<Botan::AutoSeeded_RNG>();	1✔
81	}
82
83	if(!drbg_seed.empty()) {	2✔
84	rng->add_entropy(drbg_seed.data(), drbg_seed.size());	×
85	}
86	return rng;	2✔
87	}	2✔
88	#endif
89
90	#if defined(BOTAN_HAS_HMAC_DRBG) && defined(BOTAN_HAS_SHA2_32)
91	if(rng_type == "drbg" \|\| (rng_type.empty() && drbg_seed.empty() == false)) {	100✔
92	auto mac = Botan::MessageAuthenticationCode::create_or_throw("HMAC(SHA-256)");	99✔
93	auto rng = std::make_shared<Botan::HMAC_DRBG>(std::move(mac));	99✔
94	rng->add_entropy(drbg_seed.data(), drbg_seed.size());	99✔
95
96	if(rng->is_seeded() == false) {	99✔
97	throw CLI_Error("For " + rng->name() + " a seed of at least " + std::to_string(rng->security_level() / 8) +	×
98	" bytes must be provided");	×
99	}
100
101	return rng;	99✔
102	}	99✔
103	#endif
104
105	#if defined(BOTAN_HAS_PROCESSOR_RNG)
106	if(rng_type == "rdrand" \|\| rng_type == "cpu" \|\| rng_type.empty()) {	1✔
107	if(Botan::Processor_RNG::available()) {	1✔
108	return std::make_shared<Botan::Processor_RNG>();	1✔
109	} else if(rng_type.empty() == false) {	×
110	throw CLI_Error("RNG instruction not supported on this processor");	×
111	}
112	}
113	#endif
114
115	if(rng_type.empty()) {	×
116	throw CLI_Error_Unsupported("No random number generator seems to be available in the current build");	×
117	} else {
118	throw CLI_Error_Unsupported("RNG", rng_type);	×
119	}
120	}	102✔
121
122	class RNG final : public Command {
123	public:
124	RNG() :	17✔
125	Command(
126	"rng --format=hex --system --esdm-full --esdm-pr --jitter --rdrand --auto --entropy --drbg --drbg-seed= *bytes") {	17✔
127	}	17✔
128
129	std::string group() const override { return "misc"; }	1✔
130
131	std::string description() const override { return "Sample random bytes from the specified rng"; }	1✔
132
133	void go() override {	16✔
134	const std::string format = get_arg("format");	16✔
135	std::string type = get_arg("rng-type");	16✔
136
137	if(type.empty()) {	16✔
138	const std::vector<std::string> known_rng_types = {	6✔
139	"system", "rdrand", "auto", "entropy", "drbg", "esdm-full", "esdm-pr", "jitter"};	6✔
140	for(const auto& flag : known_rng_types) {	23✔
141	if(flag_set(flag)) {	23✔
142	type = flag;	6✔
143	break;
144	}
145	}
146	}	6✔
147
148	const std::string drbg_seed = get_arg("drbg-seed");	16✔
149	auto rng = cli_make_rng(type, drbg_seed);	16✔
150
151	for(const std::string& req : get_arg_list("bytes")) {	35✔
152	const size_t req_len = Botan::to_u32bit(req);	19✔
153	const auto blob = rng->random_vec(req_len);	19✔
154
155	if(format == "binary" \|\| format == "raw") {	19✔
156	write_output(blob);	×
157	} else {
158	output() << format_blob(format, blob) << "\n";	38✔
159	}
160	}	35✔
161	}	16✔
162	};
163
164	BOTAN_REGISTER_COMMAND("rng", RNG);	17✔
165
166	} // namespace Botan_CLI

randombit / botan / 21753596263

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