arne
/
cryptopp
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Updated documentation

pull/416/head
Jeffrey Walton 2017-05-09 15:13:11 -04:00
parent 4f7fee38d6
commit bc29f1b5b8
No known key found for this signature in database
GPG Key ID: B36AB348921B1838
1 changed files with 6 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
rdrand.h
View File

@ -9,12 +9,11 @@
#include "cryptlib.h" #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} // 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 // to select an implementation or "throw NotImplemented". At runtime the
// use CPUID to determine if RDRAND or RDSEED are available. If not available, // constructor will throw RDRAND_Err or RDSEED_Err if a generator is
// then a SIGILL will result. Users of the classes should call HasRDRAND() or // is not available.
// HasRDSEED() to determine if a generator is available.
// The original classes accepted a retry count. Retries were superflous for // The original classes accepted a retry count. Retries were superflous for
// RDRAND, and RDSEED encountered a failure about 1 in 256 bytes depending // RDRAND, and RDSEED encountered a failure about 1 in 256 bytes depending
// on the processor. Retries were removed at Crypto++ 6.0 because // 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. // 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. // 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. // GCC added RDRAND in December 2010, GCC 4.6. LLVM added RDRAND in July 2012,
// Intel added RDRAND in September 2011, ICC 12.1. // Clang 3.2. Intel added RDRAND in September 2011, ICC 12.1.
NAMESPACE_BEGIN(CryptoPP) NAMESPACE_BEGIN(CryptoPP)