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Updated documentation

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Jeffrey Walton 2017-05-09 15:13:11 -04:00
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rdrand.h
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@ -9,12 +9,11 @@
#include "cryptlib.h"
// This file (and friends) provides both RDRAND and RDSEED. They were added at
// This class file provides both RDRAND and RDSEED. They were added at
// Crypto++ 5.6.3. At compile time, it uses CRYPTOPP_BOOL_{X86|X32|X64}
// to select an implementation or "throw NotImplemented". The class does not
// use CPUID to determine if RDRAND or RDSEED are available. If not available,
// then a SIGILL will result. Users of the classes should call HasRDRAND() or
// HasRDSEED() to determine if a generator is available.
// to select an implementation or "throw NotImplemented". At runtime the
// constructor will throw RDRAND_Err or RDSEED_Err if a generator is
// is not available.
// The original classes accepted a retry count. Retries were superflous for
// RDRAND, and RDSEED encountered a failure about 1 in 256 bytes depending
// on the processor. Retries were removed at Crypto++ 6.0 because
@ -28,8 +27,8 @@
// during testing with Athlon X4 845. The Bulldozer v4 only performed at 1 MiB/s.
// Microsoft added RDRAND in August 2012, VS2012; RDSEED in October 2013, VS2013.
// GCC added RDRAND in December 2010, GCC 4.6. LLVM added RDRAND in July 2012, Clang 3.2.
// Intel added RDRAND in September 2011, ICC 12.1.
// GCC added RDRAND in December 2010, GCC 4.6. LLVM added RDRAND in July 2012,
// Clang 3.2. Intel added RDRAND in September 2011, ICC 12.1.
NAMESPACE_BEGIN(CryptoPP)