diff options
Diffstat (limited to 'openssl/crypto/rc4/rc4s.cpp')
| -rw-r--r-- | openssl/crypto/rc4/rc4s.cpp | 73 | 
1 files changed, 73 insertions, 0 deletions
diff --git a/openssl/crypto/rc4/rc4s.cpp b/openssl/crypto/rc4/rc4s.cpp new file mode 100644 index 00000000..3814fde9 --- /dev/null +++ b/openssl/crypto/rc4/rc4s.cpp @@ -0,0 +1,73 @@ +// +// 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/rc4.h> + +void main(int argc,char *argv[]) +	{ +	unsigned char buffer[1024]; +	RC4_KEY ctx; +	unsigned long s1,s2,e1,e2; +	unsigned char k[16]; +	unsigned long data[2]; +	unsigned char iv[8]; +	int i,num=64,numm; +	int j=0; + +	if (argc >= 2) +		num=atoi(argv[1]); + +	if (num == 0) num=256; +	if (num > 1024-16) num=1024-16; +	numm=num+8; + +	for (j=0; j<6; j++) +		{ +		for (i=0; i<10; i++) /**/ +			{ +			RC4(&ctx,numm,buffer,buffer); +			GetTSC(s1); +			RC4(&ctx,numm,buffer,buffer); +			GetTSC(e1); +			GetTSC(s2); +			RC4(&ctx,num,buffer,buffer); +			GetTSC(e2); +			RC4(&ctx,num,buffer,buffer); +			} + +		printf("RC4 (%d bytes) %d %d (%d) - 8 bytes\n",num, +			e1-s1,e2-s2,(e1-s1)-(e2-s2)); +		} +	} +  | 
