Building Intel® Cryptography Primitives Library Applications

Developer Guide and Reference for Intel® Cryptography Primitives Library

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ID 834196

Date 10/31/2024

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Building Intel® Cryptography Primitives Library Applications

The code example below represents a short application to help you get started with Intel® Cryptography Primitives Library:


#include "ippcp.h"
#include <stdio.h>
int main(int argc, char* argv[])
{
   const CryptoLibraryVersion *lib;
   IppStatus status;
   Ipp64u mask, emask;


   /* Get Intel(R) Cryptography Primitives Library version info */
   lib = cryptoGetLibVersion();
   printf("%s %s\n", lib->strVersion);


   /* Get CPU features and features enabled with selected library level */
   status = ippcpGetCpuFeatures( &mask );
   if( ippStsNoErr == status ) {
      emask = ippcpGetEnabledCpuFeatures();
      printf("Features supported by CPU\tby Intel(R) Cryptography Primitives Library\n");
      printf("-----------------------------------------\n");
      printf("  ippCPUID_MMX        = ");
      printf("%c\t%c\t",( mask & ippCPUID_MMX ) ? 'Y':'N',( emask & ippCPUID_MMX ) ? 'Y':'N');
      printf("Intel(R) Architecture MMX technology supported\n");
      printf("  ippCPUID_SSE        = ");
      printf("%c\t%c\t",( mask & ippCPUID_SSE ) ? 'Y':'N',( emask & ippCPUID_SSE ) ? 'Y':'N');
      printf("Intel(R) Streaming SIMD Extensions (Intel(R) SSE)\n");
      printf("  ippCPUID_SSE2       = ");
      printf("%c\t%c\t",( mask & ippCPUID_SSE2 ) ? 'Y':'N',( emask & ippCPUID_SSE2 ) ? 'Y':'N');
      printf("Intel(R) Streaming SIMD Extensions 2 (Intel(R) SSE2)\n");
      printf("  ippCPUID_SSE3       = ");
      printf("%c\t%c\t",( mask & ippCPUID_SSE3 ) ? 'Y':'N',( emask & ippCPUID_SSE3 ) ? 'Y':'N');
      printf("Intel(R) Streaming SIMD Extensions 3 (Intel(R) SSE3)\n");
      printf("  ippCPUID_SSSE3      = ");
      printf("%c\t%c\t",( mask & ippCPUID_SSSE3 ) ? 'Y':'N',( emask & ippCPUID_SSSE3 ) ? 'Y':'N');
      printf("Supplemental Streaming SIMD Extensions 3 (SSSE3)\n");
      printf("  ippCPUID_MOVBE      = ");
      printf("%c\t%c\t",( mask & ippCPUID_MOVBE ) ? 'Y':'N',( emask & ippCPUID_MOVBE ) ? 'Y':'N');
      printf("The processor supports MOVBE instruction\n");
      printf("  ippCPUID_SSE41      = ");
      printf("%c\t%c\t",( mask & ippCPUID_SSE41 ) ? 'Y':'N',( emask & ippCPUID_SSE41 ) ? 'Y':'N');
      printf("Intel(R) Streaming SIMD Extensions 4.1 (Intel(R) SSE4.1)\n");
      printf("  ippCPUID_SSE42      = ");
      printf("%c\t%c\t",( mask & ippCPUID_SSE42 ) ? 'Y':'N',( emask & ippCPUID_SSE42 ) ? 'Y':'N');
      printf("Intel(R) Streaming SIMD Extensions 4.2 (Intel(R) SSE4.2)\n");
      printf("  ippCPUID_AVX        = ");
      printf("%c\t%c\t",( mask & ippCPUID_AVX ) ? 'Y':'N',( emask & ippCPUID_AVX ) ? 'Y':'N');
      printf("Intel(R) Advanced Vector Extensions (Intel(R) AVX) instruction set\n");
      printf("  ippAVX_ENABLEDBYOS  = ");
      printf("%c\t%c\t",( mask & ippAVX_ENABLEDBYOS ) ? 'Y':'N',( emask & ippAVX_ENABLEDBYOS ) ? 'Y':'N');
      printf("The operating system supports Intel(R) AVX\n");
      printf("  ippCPUID_AES        = ");
      printf("%c\t%c\t",( mask & ippCPUID_AES ) ? 'Y':'N',( emask & ippCPUID_AES ) ? 'Y':'N');
      printf("Intel(R) Advanced Encryption Standard New Instructions (Intel(R) AES-NI)\n");
      printf("  ippCPUID_SHA        = ");
      printf("%c\t%c\t",( mask & ippCPUID_SHA ) ? 'Y':'N',( emask & ippCPUID_SHA ) ? 'Y':'N');
      printf("Intel(R) Secure Hash Algorithm - New Instructions (Intel(R) SHA-NI)\n");
      printf("  ippCPUID_CLMUL      = ");
      printf("%c\t%c\t",( mask & ippCPUID_CLMUL ) ? 'Y':'N',( emask & ippCPUID_CLMUL ) ? 'Y':'N');
      printf("PCLMULQDQ instruction\n");
      printf("  ippCPUID_RDRAND     = ");
      printf("%c\t%c\t",( mask & ippCPUID_RDRAND ) ? 'Y':'N',( emask & ippCPUID_RDRAND ) ? 'Y':'N');
      printf("Read Random Number instructions\n");
      printf("  ippCPUID_F16C       = ");
      printf("%c\t%c\t",( mask & ippCPUID_F16C ) ? 'Y':'N',( emask & ippCPUID_F16C ) ? 'Y':'N');
      printf("Float16 instructions\n");
      printf("  ippCPUID_AVX2       = ");
      printf("%c\t%c\t",( mask & ippCPUID_AVX2 ) ? 'Y':'N',( emask & ippCPUID_AVX2 ) ? 'Y':'N');
      printf("Intel(R) Advanced Vector Extensions 2 (Intel(R) AVX2) instruction set\n");
      printf("  ippCPUID_AVX512F    = ");
      printf("%c\t%c\t",( mask & ippCPUID_AVX512F ) ? 'Y':'N',( emask & ippCPUID_AVX512F ) ? 'Y':'N');
      printf("Intel(R) Advanced Vector Extensions 3.1 instruction set\n");
      printf("  ippCPUID_AVX512CD   = ");
      printf("%c\t%c\t",( mask & ippCPUID_AVX512CD ) ? 'Y':'N',( emask & ippCPUID_AVX512CD ) ? 'Y':'N');
      printf("Intel(R) Advanced Vector Extensions CD (Conflict Detection) instruction set\n");
      printf("  ippCPUID_AVX512ER   = ");
      printf("%c\t%c\t",( mask & ippCPUID_AVX512ER ) ? 'Y':'N',( emask & ippCPUID_AVX512ER ) ? 'Y':'N');
      printf("Intel(R) Advanced Vector Extensions ER instruction set\n");
      printf("  ippCPUID_ADCOX      = ");
      printf("%c\t%c\t",( mask & ippCPUID_ADCOX ) ? 'Y':'N',( emask & ippCPUID_ADCOX ) ? 'Y':'N');
      printf("ADCX and ADOX instructions\n");
      printf("  ippCPUID_RDSEED     = ");
      printf("%c\t%c\t",( mask & ippCPUID_RDSEED ) ? 'Y':'N',( emask & ippCPUID_RDSEED ) ? 'Y':'N');
      printf("The RDSEED instruction\n");
      printf("  ippCPUID_PREFETCHW  = ");
      printf("%c\t%c\t",( mask & ippCPUID_PREFETCHW ) ? 'Y':'N',( emask & ippCPUID_PREFETCHW ) ? 'Y':'N');
      printf("The PREFETCHW instruction\n");
      printf("  ippCPUID_KNC        = ");
      printf("%c\t%c\t",( mask & ippCPUID_KNC ) ? 'Y':'N',( emask & ippCPUID_KNC ) ? 'Y':'N');
      printf("Intel(R) Xeon Phi™ Coprocessor instruction set\n");
   }
   return 0;
}

This application consists of three sections:

Initialize the Intel® Cryptography Primitives Library. The Intel® Cryptography Primitives Library is auto-initialized with the first call of an Intel® Cryptography Primitives Library function.

In certain debugging scenarios, it is helpful to force a specific implementation layer using ippcpSetCpuFeatures(), instead of the best as chosen by the dispatcher.
Get the library layer name and version. You can also get the version information using the ippcpversion.h file located in the /include directory.
Show the hardware optimizations used by the selected library layer and supported by CPU.

Building the First Example on Windows* OS

To build the code example above on Windows* OS, follow the steps:

Start Microsoft Visual Studio* and create an empty C++ project.
Add a new c file and paste the code into it.
Set the include directories and the linking model as described in Linking Your Microsoft* Visual Studio* Project with Intel® Cryptography Primitives Library.
Compile and run the application.

Building the First Example on Linux* OS

To build the code example above on Linux* OS, follow the steps:

Paste the code into the editor of your choice.
Make sure the compiler and Intel® Cryptography Primitives Library variables are set in your shell. For information on how to set environment variables, see Setting Environment Variables.

Compile with the following command:


icpx ippcptest.cpp -o ippcptest -I $IPPCRYPTOROOT/include -L $IPPCRYPTOROOT/lib -lippcp.

For more information, see Linking Options.

Run the application.

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