diff options
Diffstat (limited to 'drivers/builtin_openssl/crypto/rc5/rc5s.cpp')
| -rw-r--r-- | drivers/builtin_openssl/crypto/rc5/rc5s.cpp | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/drivers/builtin_openssl/crypto/rc5/rc5s.cpp b/drivers/builtin_openssl/crypto/rc5/rc5s.cpp new file mode 100644 index 0000000000..1c5518bc80 --- /dev/null +++ b/drivers/builtin_openssl/crypto/rc5/rc5s.cpp @@ -0,0 +1,70 @@ +// +// gettsc.inl +// +// gives access to the Pentium's (secret) cycle counter +// +// This software was written by Leonard Janke (janke@unixg.ubc.ca) +// in 1996-7 and is entered, by him, into the public domain. + +#if defined(__WATCOMC__) +void GetTSC(unsigned long&); +#pragma aux GetTSC = 0x0f 0x31 "mov [edi], eax" parm [edi] modify [edx eax]; +#elif defined(__GNUC__) +inline +void GetTSC(unsigned long& tsc) +{ + asm volatile(".byte 15, 49\n\t" + : "=eax" (tsc) + : + : "%edx", "%eax"); +} +#elif defined(_MSC_VER) +inline +void GetTSC(unsigned long& tsc) +{ + unsigned long a; + __asm _emit 0fh + __asm _emit 31h + __asm mov a, eax; + tsc=a; +} +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <openssl/rc5.h> + +void main(int argc,char *argv[]) + { + RC5_32_KEY key; + unsigned long s1,s2,e1,e2; + unsigned long data[2]; + int i,j; + static unsigned char d[16]={0x01,0x23,0x45,0x67,0x89,0xAB,0xCD,0xEF}; + + RC5_32_set_key(&key, 16,d,12); + + for (j=0; j<6; j++) + { + for (i=0; i<1000; i++) /**/ + { + RC5_32_encrypt(&data[0],&key); + GetTSC(s1); + RC5_32_encrypt(&data[0],&key); + RC5_32_encrypt(&data[0],&key); + RC5_32_encrypt(&data[0],&key); + GetTSC(e1); + GetTSC(s2); + RC5_32_encrypt(&data[0],&key); + RC5_32_encrypt(&data[0],&key); + RC5_32_encrypt(&data[0],&key); + RC5_32_encrypt(&data[0],&key); + GetTSC(e2); + RC5_32_encrypt(&data[0],&key); + } + + printf("cast %d %d (%d)\n", + e1-s1,e2-s2,((e2-s2)-(e1-s1))); + } + } + |