Am 24.10.2015 um 04:58 schrieb Jeffrey Walton: > > > On Friday, October 23, 2015 at 7:56:20 PM UTC-4, Jeffrey Walton wrote: > > Hi Everyone, > > We added RDSEED to the library. We reused the RDRAND gear since > nearly everything was the same. That means <rdrand.h> provides > both RDRAND and RDSEED. > > We also reused the RDRAND wiki page. The page was modifed to > discuss both RDRAND and RDSEED. You can find it at > https://cryptopp.com/wiki/RDRAND > <https://cryptopp.com/wiki/RDRAND> . The wiki page also includes a > discussion of issuing the opcodes by hand, and how to use an > assembler like YASM to generate them for you. > > The RDRAND/RDSEED source files are available as stand-alone > download from the wiki page. > > We'll have an RC6 soon since the additional functionality modified > rdand.h, rdand.cpp, rdrand.asm, test.cpp and validat1.cpp. > > > I forgot to mention... I've got some odd configurations. I've got a > MacBook that has AES-NI and CLMUL, but it lacks RDRAND. I have an Asus > laptop that has RDRAND, but lacks RDSEED. So don't be surprised if you > see the following (under Windows). > This isn't odd. AES-NI and CLMUL were introduced in the late first Gen Intel Core i processors (desktop i7 and one desktop i5 didn't have it, the rest of this gen had it - at least the i5s). So chances are if you have a Sandy Bridge CPU (Intel Core i 2XXX) you have AES-NI and no RDRAND. RDRAND was introduced with Ivy Bridge (Intel Core i 3XXX excluding 39XX series). RDSEED was introduced with Broadwell (Intel Core i 5XXX, excluding the 59XX and 599X Haswell-Es) The first generation with mass availability (on non-(cheap laptops)) will be Skylake (Intel Core i 6XXX) which is getting mass available right now.
So far for the little history lesson here ;) BR JPM > passed: Your machine is little endian. > passed: Your machine allows unaligned data access. > passed: sizeof(byte) == 1 > passed: sizeof(word16) == 2 > passed: sizeof(word32) == 4 > passed: sizeof(word64) == 8 > passed: sizeof(hword) == 2, sizeof(word) == 4, sizeof(dword) == 8 > passed: hasMMX == 1, hasISSE == 1, hasSSE2 == 1, hasSSSE3 == 1, > hasAESNI == 1, > hasRDRAND == 1, hasRDSEED == 0, hasCLMUL == 1, isP4 == 0, > cacheLineSize == 64, > AESNI_INTRINSICS == 1 > > No operating system provided blocking random number generator, > skipping test. > > Testing operating system provided nonblocking random number generator... > > passed: 100000 generated bytes compressed to 100020 bytes by DEFLATE > > Testing AutoSeeded generator... > > passed: 100000 generated bytes compressed to 100020 bytes by DEFLATE > passed: discarded 10000 bytes > > Testing RDRAND generator... > > passed: 100000 generated bytes compressed to 100020 bytes by DEFLATE > passed: discarded 10000 bytes > > RDSEED generator not available, skipping test. > ... > > -- > -- > You received this message because you are subscribed to the "Crypto++ > Users" Google Group. > To unsubscribe, send an email to > cryptopp-users-unsubscr...@googlegroups.com. > More information about Crypto++ and this group is available at > http://www.cryptopp.com. > --- > You received this message because you are subscribed to the Google > Groups "Crypto++ Users" group. > To unsubscribe from this group and stop receiving emails from it, send > an email to cryptopp-users+unsubscr...@googlegroups.com > <mailto:cryptopp-users+unsubscr...@googlegroups.com>. > For more options, visit https://groups.google.com/d/optout. -- -- You received this message because you are subscribed to the "Crypto++ Users" Google Group. To unsubscribe, send an email to cryptopp-users-unsubscr...@googlegroups.com. More information about Crypto++ and this group is available at http://www.cryptopp.com. --- You received this message because you are subscribed to the Google Groups "Crypto++ Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to cryptopp-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
