#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#include "ipp.h"
#include "ippcp.h"

#define KEYLENBYTES 128
#define BITS_BYTES(n)   (((n)+7)>>3)
#define BITS_DWORDS(n)  (((n)+31)>>5)
#define BYTE_DWORDS(n)  (((n)+3)>>2)

uint8_t private_key_1024_p[] = {
	/* Prime 1 (p). */
	0xba, 0xfb, 0x89, 0xd7, 0xf1, 0x72, 0x80, 0x3a,
	0x5d, 0x60, 0xd0, 0x64, 0x34, 0x4e, 0x28, 0x89,
	0x46, 0xac, 0xfc, 0x8b, 0xb2, 0x10, 0x41, 0xcd,
	0xcc, 0xb7, 0xbf, 0xdd, 0x28, 0x78, 0x84, 0xe6,
	0x07, 0xed, 0x8c, 0xe0, 0xd7, 0x13, 0x41, 0x26,
	0xfe, 0x80, 0x49, 0x70, 0xd7, 0x5c, 0x85, 0x3c,
	0xfe, 0xd2, 0x46, 0x6c, 0x1a, 0x32, 0x2f, 0x7a,
	0x2f, 0xeb, 0x03, 0xed, 0xcb, 0xe0, 0xf2, 0x05
};

uint8_t private_key_1024_q[] = {
	/* Prime 2 (q). */
	0xd2, 0x96, 0x55, 0x8d, 0xd7, 0x81, 0xee, 0x06,
	0x02, 0x59, 0xb3, 0x43, 0x93, 0x7c, 0xde, 0xf1,
	0x89, 0xa2, 0xbc, 0x9f, 0xb4, 0x7d, 0x3e, 0x62,
	0x6e, 0x3f, 0xb7, 0x60, 0xb9, 0x0f, 0x60, 0x3f,
	0x84, 0xe5, 0x0a, 0x51, 0xcc, 0x0d, 0xf9, 0x6b,
	0x12, 0x29, 0x81, 0x16, 0xec, 0x61, 0x34, 0x39,
	0xcd, 0x5d, 0x24, 0x81, 0xed, 0xaa, 0x89, 0x2f,
	0xde, 0x98, 0xa5, 0xe3, 0x9b, 0xe2, 0xbc, 0x15
};

uint8_t private_key_1024_dp[] = {
	/* Exponent dp = d (mod p-1). */
	0xad, 0x56, 0xd0, 0xd3, 0xca, 0xb6, 0x7e, 0x1f,
	0x1d, 0x3f, 0xca, 0x10, 0x8a, 0xd8, 0xc6, 0x05,
	0x74, 0xea, 0x9a, 0xf8, 0x9a, 0x2b, 0x2e, 0x05,
	0xae, 0x39, 0xcd, 0xf9, 0x25, 0x32, 0x8c, 0xe9,
	0x7f, 0x01, 0xfe, 0x6e, 0xd5, 0x93, 0xb8, 0xfb,
	0x80, 0x45, 0xc7, 0x4f, 0x7f, 0xa6, 0xfa, 0xb1,
	0xaf, 0xfd, 0x99, 0x61, 0x4f, 0xeb, 0xa4, 0x4d,
	0xde, 0xac, 0x3d, 0x29, 0x2e, 0xaf, 0x2b, 0x4d
};

uint8_t private_key_1024_dq[] = {
	/* Exponent dq = d (mod q-1). */
	0x48, 0x14, 0x6c, 0xf4, 0x3f, 0xef, 0x99, 0x29,
	0x35, 0x64, 0xbe, 0x97, 0x42, 0xc4, 0x5b, 0x0b,
	0x11, 0xb1, 0x42, 0x1e, 0xe8, 0x08, 0x76, 0x71,
	0xfa, 0x8a, 0x94, 0x99, 0xe6, 0xbd, 0xfc, 0x93,
	0xc1, 0x49, 0x24, 0x5f, 0x1b, 0x19, 0x2d, 0x66,
	0x18, 0xb1, 0x5c, 0x1e, 0x1c, 0x8a, 0xa8, 0xf5,
	0x9f, 0xf5, 0x61, 0xa9, 0x97, 0x4f, 0xe7, 0xe5,
	0x1a, 0xab, 0xe5, 0x1c, 0x23, 0x1f, 0x58, 0x81
};

uint8_t private_key_1024_invp[] = {
	/* Co-efficient = Inverse of q (mod p). */
	0x48, 0xe5, 0xca, 0xbc, 0xf1, 0xdb, 0x8d, 0x6f,
	0x35, 0x49, 0x8a, 0xca, 0x8c, 0x40, 0x6d, 0xb7,
	0x1e, 0x99, 0xe9, 0x5b, 0xd3, 0xb0, 0x5c, 0x1d,
	0x47, 0x95, 0x05, 0xe9, 0x33, 0xd0, 0x8c, 0x76,
	0xea, 0x3c, 0x25, 0x9d, 0x8d, 0xfa, 0x3c, 0xa1,
	0x34, 0x19, 0x8d, 0xbc, 0x02, 0xcc, 0x47, 0x59,
	0xcc, 0xef, 0x7f, 0x76, 0x76, 0x08, 0x8f, 0xb2,
	0x7b, 0x4c, 0xde, 0x3b, 0xde, 0x14, 0xee, 0x82
};


IppsBigNumState* NewIppBn(int bitSize, const uint8_t* pData)
{
	IppsBigNumState* pCtx = NULL;
	int ctxSize = 0;
	int length = BITS_DWORDS(bitSize);

	ippsBigNumGetSize(length, &ctxSize);
	pCtx = (IppsBigNumState*)( malloc(ctxSize) );
   
	if(NULL!=pCtx) {
		ippsBigNumInit(length, pCtx);
		if(NULL!=pData)
			ippsSetOctString_BN(pData, BITS_BYTES(bitSize), pCtx);
	}

	return pCtx;
}

void DeleteIppBn(IppsBigNumState* pCtx)
{
	free(pCtx);
}

int main()
{
	int ret;
	uint32_t keyCtxSizeBytes = 0, bitsP = 0, bitsQ = 0,modulusBitSize = 1024;
	IppsRSAPrivateKeyState* pPvtCtx = (IppsRSAPrivateKeyState *) NULL;
	
	IppStatus ippstatus = ippStsNoErr;
	const IppLibraryVersion *lib;
	const IppLibraryVersion *libcp;

	/* Init Intel IPP library */
	ippInit();
	/* Get Intel IPP library version info */
	lib = ippGetLibVersion();
	printf("%s %s built at %s for CPU %s (%d.%d.%d.%d)\n", lib->Name, lib->Version, lib->BuildDate,
	       lib->targetCpu, lib->major, lib->minor, lib->majorBuild, lib->build);

	libcp = ippcpGetLibVersion();
	printf("%s %s built at %s for CPU %s (%d.%d.%d.%d)\n", libcp->Name, libcp->Version, libcp->BuildDate,
	       libcp->targetCpu, libcp->major, libcp->minor, libcp->majorBuild, libcp->build);

	IppsBigNumState* pP = NewIppBn(modulusBitSize, NULL);
	IppsBigNumState* pQ = NewIppBn(modulusBitSize, NULL);
	IppsBigNumState* pdP = NewIppBn(modulusBitSize, NULL);
	IppsBigNumState* pdQ = NewIppBn(modulusBitSize, NULL);
	IppsBigNumState* pQInvP = NewIppBn(modulusBitSize, NULL);
	
	if (pP == NULL || pQ == NULL || pdP == NULL || pdQ == NULL || pQInvP == NULL)
	{
		ret = -1;
		goto error;
	}
	
	/* store the prime P as a big number */
	ippstatus = ippsSetOctString_BN(private_key_1024_p,64,pP);
	if (ippStsNoErr != ippstatus){
		ret = -2;
		goto error;
	}
	
	/* store the prime Q as a big number */
	ippstatus = ippsSetOctString_BN(private_key_1024_q,64,pQ);
	if (ippStsNoErr != ippstatus) {
		ret = -3;
		goto error;
	}
	
	/* store the ExpDp as a big number */
	ippstatus = ippsSetOctString_BN(private_key_1024_dp,64,pdP);
	if (ippStsNoErr != ippstatus) {
		ret = -4;
		goto error;
	}
	
	/* store the ExpDq as a big number */
	ippstatus = ippsSetOctString_BN(private_key_1024_dq,64,pdQ);
	if (ippStsNoErr != ippstatus) {
		ret = -5;
		goto error;
	}
	
	/* store Inv Q as a big number */
	ippstatus = ippsSetOctString_BN(private_key_1024_invp,64,pQInvP);
	if (ippStsNoErr != ippstatus) {
		ret = -6;
		goto error;
	}
	
	/* Obtain the size of the first factor of the private key, in bits. */
	ippstatus = ippsRef_BN((IppsBigNumSGN *) NULL, (int *) &bitsP, (Ipp32u** const) NULL, pP);
	if ( ippStsNoErr != ippstatus ) {
		ret = -7;
		goto error;
	}
	printf("bitsP = %d\n",(int)bitsP);
	
	/* Obtain the size of second factor of the private key, in bits. */
	ippstatus = ippsRef_BN((IppsBigNumSGN *) NULL, (int *) &bitsQ, (Ipp32u** const) NULL, pQ);
	if ( ippStsNoErr != ippstatus ) {
		ret = -8;
		goto error;
	}
	printf("bitsQ = %d\n",(int)bitsQ);
	
	/* Obtain the size of the memory buffer (bytes) required for the private key of Type 2. */
	ippstatus = ippsRSA_GetSizePrivateKeyType2(bitsP, bitsQ,(int *) &keyCtxSizeBytes);
	if ( ippStsNoErr != ippstatus ) {
		ret = -9;
		goto error;
	}
	printf("keyCtxSizeBytes=%d\n",(int)keyCtxSizeBytes);
	/* Set up storage space for the Private Key of type 2. */
	pPvtCtx = (IppsRSAPrivateKeyState *) malloc(keyCtxSizeBytes *sizeof(Ipp8u));
	if (pPvtCtx == (IppsRSAPrivateKeyState *) NULL) {
		ret = -10;
		goto error;
	}
	printf("keyCtxSizeBytes *sizeof(Ipp8u) = %d\n",(int)((int)keyCtxSizeBytes *(int)(sizeof(Ipp8u))));	
	/* Initialize the private key of Type 2. */
	ippstatus = ippsRSA_InitPrivateKeyType2(bitsP,bitsQ,pPvtCtx,keyCtxSizeBytes);
	if (ippStsNoErr != ippstatus) {
		ret = -11;
		goto error;
	}
	
	ippstatus = ippsRSA_SetPrivateKeyType2(pP, pQ, pdP, pdQ, pQInvP, pPvtCtx);
	if (ippStsNoErr != ippstatus) {
		ret = -12;
		printf("set error----\n");
		goto error;
	}
	ret = 1;
error:
	if(pP != NULL) {
		DeleteIppBn(pP);
	}
	if(pQ != NULL) {
		DeleteIppBn(pQ);
	}
	if(pdP != NULL) {
		DeleteIppBn(pdP);
	}
	if(pdQ != NULL) {
		DeleteIppBn(pdQ);
	}
	if(pQInvP != NULL) {
		DeleteIppBn(pQInvP);
	}
	if(pPvtCtx != NULL) {
		free(pPvtCtx);
	}
	
	printf("ret = %d\n",ret);
	return ret;
}