11268576238

Committed 10 Oct 2024 06:22AM UTC coverage: 90.983% (-0.02%) from 91.007%

Build # 11268576238

Build Type

push

github

Committed by

web-flow

Commit Message

Merge pull request #4325 from plancksecurity/jitter

Add jitterentropy as RNG

Run Details

89487 of 98356 relevant lines covered (90.98%)

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83.33

/src/cli/entropy.cpp

/*
* (C) 2019 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "../tests/test_rng.h"  // FIXME
#include "cli.h"

#include <botan/entropy_src.h>

#if defined(BOTAN_HAS_COMPRESSION)
   #include <botan/compression.h>
#endif

namespace Botan_CLI {

class Entropy final : public Command {
   public:
      Entropy() : Command("entropy --truncate-at=128 source") {}

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

      std::string description() const override { return "Sample a raw entropy source"; }

      void go() override {
         const std::string req_source = get_arg("source");
         const size_t truncate_sample = get_arg_sz("truncate-at");

         auto& entropy_sources = Botan::Entropy_Sources::global_sources();

         std::vector<std::string> sources;
         if(req_source == "all") {
            sources = entropy_sources.enabled_sources();
         } else {
            sources.push_back(req_source);
         }

         for(const std::string& source : sources) {
            Botan_Tests::SeedCapturing_RNG rng;
            const size_t entropy_estimate = entropy_sources.poll_just(rng, source);

            if(rng.samples() == 0) {
               output() << "Source " << source << " is unavailable\n";
               continue;
            }

            const auto& sample = rng.seed_material();

            output() << "Polling " << source << " gathered " << sample.size() << " bytes in " << rng.samples()
                     << " outputs with estimated entropy " << entropy_estimate << "\n";

#if defined(BOTAN_HAS_COMPRESSION)
            if(!sample.empty()) {
               auto comp = Botan::Compression_Algorithm::create("zlib");
               if(comp) {
                  try {
                     Botan::secure_vector<uint8_t> compressed;
                     compressed.assign(sample.begin(), sample.end());
                     comp->start(9);
                     comp->finish(compressed);

                     if(compressed.size() < sample.size()) {
                        output() << "Sample from " << source << " was zlib compressed from " << sample.size()
                                 << " bytes to " << compressed.size() << " bytes\n";
                     }
                  } catch(std::exception& e) {
                     error_output() << "Error while attempting to compress: " << e.what() << "\n";
                  }
               }
            }
#endif

            if(sample.size() <= truncate_sample) {
               output() << Botan::hex_encode(sample) << "\n";
            } else if(truncate_sample > 0) {
               output() << Botan::hex_encode(&sample[0], truncate_sample) << "...\n";
            }
         }
      }
};

BOTAN_REGISTER_COMMAND("entropy", Entropy);

}  // namespace Botan_CLI

1	/*
2	* (C) 2019 Jack Lloyd
3	*
4	* Botan is released under the Simplified BSD License (see license.txt)
5	*/
6
7	#include "../tests/test_rng.h" // FIXME
8	#include "cli.h"
9
10	#include <botan/entropy_src.h>
11
12	#if defined(BOTAN_HAS_COMPRESSION)
13	#include <botan/compression.h>
14	#endif
15
16	namespace Botan_CLI {
17
18	class Entropy final : public Command {
19	public:
20	Entropy() : Command("entropy --truncate-at=128 source") {}	4✔
21
22	std::string group() const override { return "misc"; }	1✔
23
24	std::string description() const override { return "Sample a raw entropy source"; }	1✔
25
26	void go() override {	1✔
27	const std::string req_source = get_arg("source");	1✔
28	const size_t truncate_sample = get_arg_sz("truncate-at");	1✔
29
30	auto& entropy_sources = Botan::Entropy_Sources::global_sources();	1✔
31
32	std::vector<std::string> sources;	1✔
33	if(req_source == "all") {	1✔
34	sources = entropy_sources.enabled_sources();	1✔
35	} else {
36	sources.push_back(req_source);	×
37	}
38
39	for(const std::string& source : sources) {	5✔
40	Botan_Tests::SeedCapturing_RNG rng;	4✔
41	const size_t entropy_estimate = entropy_sources.poll_just(rng, source);	4✔
42
43	if(rng.samples() == 0) {	4✔
44	output() << "Source " << source << " is unavailable\n";	×
45	continue;	×
46	}
47
48	const auto& sample = rng.seed_material();	4✔
49
50	output() << "Polling " << source << " gathered " << sample.size() << " bytes in " << rng.samples()	4✔
51	<< " outputs with estimated entropy " << entropy_estimate << "\n";	4✔
52
53	#if defined(BOTAN_HAS_COMPRESSION)
54	if(!sample.empty()) {	4✔
55	auto comp = Botan::Compression_Algorithm::create("zlib");	4✔
56	if(comp) {	4✔
57	try {	4✔
58	Botan::secure_vector<uint8_t> compressed;	4✔
59	compressed.assign(sample.begin(), sample.end());	4✔
60	comp->start(9);	4✔
61	comp->finish(compressed);	4✔
62
63	if(compressed.size() < sample.size()) {	4✔
64	output() << "Sample from " << source << " was zlib compressed from " << sample.size()	×
65	<< " bytes to " << compressed.size() << " bytes\n";	×
66	}
67	} catch(std::exception& e) {	4✔
68	error_output() << "Error while attempting to compress: " << e.what() << "\n";	×
69	}	×
70	}
71	}	4✔
72	#endif
73
74	if(sample.size() <= truncate_sample) {	4✔
75	output() << Botan::hex_encode(sample) << "\n";	2✔
76	} else if(truncate_sample > 0) {	3✔
77	output() << Botan::hex_encode(&sample[0], truncate_sample) << "...\n";	9✔
78	}
79	}	4✔
80	}	1✔
81	};
82
83	BOTAN_REGISTER_COMMAND("entropy", Entropy);	2✔
84
85	} // namespace Botan_CLI

randombit / botan / 11268576238

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