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/*
* 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>
#include <Security/SecRandom.h>
namespace Botan {
/**
* Gather entropy from SecRandomCopyBytes
*/
size_t Darwin_SecRandom::poll(RandomNumberGenerator& rng)
{
secure_vector<uint8_t> buf(BOTAN_SYSTEM_RNG_POLL_REQUEST);
if(0 == SecRandomCopyBytes(kSecRandomDefault, buf.size(), buf.data()))
{
rng.add_entropy(buf.data(), buf.size());
return buf.size() * 8;
}
return 0;
}
}
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