diff options
Diffstat (limited to 'src/lib/entropy/darwin_secrandom')
-rw-r--r-- | src/lib/entropy/darwin_secrandom/darwin_secrandom.cpp | 28 | ||||
-rw-r--r-- | src/lib/entropy/darwin_secrandom/darwin_secrandom.h | 31 | ||||
-rw-r--r-- | src/lib/entropy/darwin_secrandom/info.txt | 17 |
3 files changed, 76 insertions, 0 deletions
diff --git a/src/lib/entropy/darwin_secrandom/darwin_secrandom.cpp b/src/lib/entropy/darwin_secrandom/darwin_secrandom.cpp new file mode 100644 index 000000000..f04b75a12 --- /dev/null +++ b/src/lib/entropy/darwin_secrandom/darwin_secrandom.cpp @@ -0,0 +1,28 @@ +/* +* Darwin SecRandomCopyBytes EntropySource +* (C) 2015 Daniel Seither (Kullo GmbH) +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#include <botan/internal/darwin_secrandom.h> +#include <Security/Security.h> + +namespace Botan { + +/** +* Gather entropy from SecRandomCopyBytes +*/ +void Darwin_SecRandom::poll(Entropy_Accumulator& accum) + { + const size_t ENTROPY_BITS_PER_BYTE = 8; + const size_t BUF_SIZE = 256; + + m_buf.resize(BUF_SIZE); + if (0 == SecRandomCopyBytes(kSecRandomDefault, m_buf.size(), m_buf.data())) + { + accum.add(m_buf.data(), m_buf.size(), ENTROPY_BITS_PER_BYTE); + } + } + +} diff --git a/src/lib/entropy/darwin_secrandom/darwin_secrandom.h b/src/lib/entropy/darwin_secrandom/darwin_secrandom.h new file mode 100644 index 000000000..504d5cc64 --- /dev/null +++ b/src/lib/entropy/darwin_secrandom/darwin_secrandom.h @@ -0,0 +1,31 @@ +/* +* Darwin SecRandomCopyBytes EntropySource +* (C) 2015 Daniel Seither (Kullo GmbH) +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#ifndef BOTAN_ENTROPY_SRC_DARWIN_SECRANDOM_H__ +#define BOTAN_ENTROPY_SRC_DARWIN_SECRANDOM_H__ + +#include <botan/entropy_src.h> + +namespace Botan { + +/** +* Entropy source using SecRandomCopyBytes from Darwin's Security.framework +*/ +class Darwin_SecRandom : public EntropySource + { + public: + std::string name() const override { return "Darwin SecRandomCopyBytes"; } + + void poll(Entropy_Accumulator& accum) override; + + private: + secure_vector<byte> m_buf; + }; + +} + +#endif diff --git a/src/lib/entropy/darwin_secrandom/info.txt b/src/lib/entropy/darwin_secrandom/info.txt new file mode 100644 index 000000000..e12c341fd --- /dev/null +++ b/src/lib/entropy/darwin_secrandom/info.txt @@ -0,0 +1,17 @@ +define ENTROPY_SRC_DARWIN_SECRANDOM 20150925 + +<source> +darwin_secrandom.cpp +</source> + +<header:internal> +darwin_secrandom.h +</header:internal> + +<os> +darwin +</os> + +<frameworks> +darwin -> Security +</frameworks>
\ No newline at end of file |