Change this program example to suit your needs for obtaining a master key share.
/*-------------------------------------------------------------------*/
/* GETSHARE */
/* */
/* Sample program to obtain a master key share as part of the */
/* master key cloning process. */
/* */
/* COPYRIGHT 5769-SS1 (C) IBM CORP. 1999, 1999 */
/* */
/* This material contains programming source code for your */
/* consideration. These examples have not been thoroughly */
/* tested under all conditions. IBM, therefore, cannot */
/* guarantee or imply reliability, serviceability, or function */
/* of these program. All programs contained herein are */
/* provided to you "AS IS". THE IMPLIED WARRANTIES OF */
/* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
/* ARE EXPRESSLY DISCLAIMED. IBM provides no program services for */
/* these programs and files. */
/* */
/* */
/* Note: Input format is more fully described in Chapter 2 of */
/* IBM CCA Basic Services Reference and Guide */
/* (SC31-8609) publication. */
/* */
/* Parameters: Share number */
/* Name of share sender private key */
/* Name of certifying key */
/* Stream file containing receiver certificate */
/* */
/* */
/* Example: */
/* CALL PGM(GETSHARE) PARM(2 SENDR SAKEY RECVR.PUB) */
/* */
/* */
/* Note: This program assumes the card with the profile is */
/* already identified either by defaulting to the CRP01 */
/* device or by being explicitly named using the */
/* Cryptographic_Resource_Allocate verb. Also this */
/* device must be varied on and you must be authorized */
/* to use this device description. */
/* */
/* The Common Cryptographic Architecture (CCA) verbs used is */
/* Master_Key_Distribution (CSUAMKD). */
/* */
/* Use these commands to compile this program on the system: */
/* ADDLIBLE LIB(QCCA) */
/* CRTCMOD MODULE(GETSHARE) SRCFILE(SAMPLE) */
/* CRTPGM PGM(GETSHARE) MODULE(GETSHARE) */
/* BNDDIR(QCCA/QC6BNDDIR) */
/* */
/* Note: Authority to the CSUAMKD service program */
/* in the QCCA library is assumed. */
/* */
/*-------------------------------------------------------------------*/
#include <stdio.h>
#include <string.h>
#include "csucincl.h"
#include "decimal.h"
extern void QDCXLATE(decimal(5,0), char *, char*, char *);
#pragma linkage (QDCXLATE, OS, nowiden)
int main(int argc, char *argv[])
{
/*------------------------------------------------------------------*/
/* Declares for CCA parameters */
/*------------------------------------------------------------------*/
long return_code = 0;
long reason_code = 0;
long exit_data_length = 0;
char exit_data[4];
char rule_array[24];
long rule_array_count;
long token_len = 2500;
char token[2500];
long cloneInfoKeyLength = 500;
unsigned char cloneInfoKey[500];
long cloneInfoLength = 400;
unsigned char cloneInfo[400];
long shareIdx;
char name[64];
char SAname[64];
/*------------------------------------------------------------------*/
/* Declares for working with a PKA token */
/*------------------------------------------------------------------*/
long pub_sec_len; /* Public section length */
long prv_sec_len; /* Private section length */
long cert_sec_len; /* Certificate section length */
long info_subsec_len; /* Information subsection length */
long offset; /* Offset into token */
long tempOffset; /* (Another) Offset into token */
long tempLength; /* Length variable */
long tempLen1, tempLen2; /* temporary length variables */
char cloneShare[] = "cloneShare00"; /* Base cloning share filename */
long count; /* Number of bytes read in from file */
decimal(15,5) shareParm; /* Packed 15 5 var used for converting */
/* from packed 15 5 to binary. Numeric */
/* parms on system are passed as dec 15 5*/
FILE *fp; /* File pointer */
if (argc < 5) /* Check the number of parameters passed */
{
printf("Need to Share index, Sender name, SA name, and cert\n");
return 1;
}
/* Convert the packed decimal 15 5 parm */
/* to binary. */
memcpy(&shareParm,argv[1],sizeof(shareParm));
shareIdx = shareParm;
memset(name,' ',64); /* Copy the Private key name parm to a */
memcpy(name,argv[2],strlen(argv[2])); /* 64 byte space padded var. */
memset(SAname,' ',64); /* Copy the Share Admin name parm to a */
memcpy(SAname,argv[3],strlen(argv[3]));/* 64 byte space padded var. */
fp = fopen(argv[4],"rb"); /* Open the file containing the token */
if (!fp)
{
printf("File %s not found.\n",argv[4]);
return 1;
}
memset(token,0,2500); /* Read the token from the file */
count = fread(token,1,2500,fp);
fclose(fp); /* Close the file */
/* Determine length of token from length */
/* bytes at offset 2 and 3. */
token_len = ((256 * token[2]) + token[3]);
if (count < token_len) /* Check if whole token was read in */
{
printf("Incomplete token in file\n");
return 1;
}
/************************************************************/
/* Find the certificate offset in the token */
/* */
/* The layout of the token is */
/* */
/* - Token header - 8 bytes - including 2 length bytes */
/* - Public key section - length bytes at offset 10 overall */
/* - Private key name - 68 bytes */
/* - Certificate section */
/* */
/************************************************************/
pub_sec_len = ((256 * token[10]) + token[11]);
offset = pub_sec_len + 68 + 8; /* Set offset to certiicate section */
/* Determine certificate section */
/* length from the length bytes at */
/* offset 2 of the section. */
cert_sec_len = ((256 * token[offset + 2]) + token[offset + 3]);
/**************************************************************/
/* Obtain a share */
/**************************************************************/
memcpy((void*)rule_array,"OBTAIN ",8); /* Set rule array */
rule_array_count = 1;
CSUAMKD( &return_code, &reason_code, &exit_data_length,
exit_data,
&rule_array_count,
(unsigned char*)rule_array,
&shareIdx,
name,
SAname,
&cert_sec_len,
&token[offset],
&cloneInfoKeyLength,
cloneInfoKey,
&cloneInfoLength,
cloneInfo);
if (return_code != 0)
{
printf("Master Key Distribution Failed : return reason %d/%d\n",
return_code, reason_code);
return 1;
}
else
{
/**************************************************************/
/* Write signed token out to a file */
/**************************************************************/
printf("Master Key Distribution worked\n");
/* Build file path name */
if (shareIdx < 9) cloneShare[11] = '0' + shareIdx;
else
{
cloneShare[10] = '1';
cloneShare[11] = '0' + shareIdx - 10;
}
fp = fopen(cloneShare,"wb"); /* Open the file */
if (!fp)
{
printf("File %s not be opened for output.\n",cloneShare);
return 1;
}
/* Write out the length of KEK */
fwrite((char*)&cloneInfoKeyLength,1,4,fp);
/* Write out the KEK */
fwrite((char*)cloneInfoKey,1,cloneInfoKeyLength,fp);
/* Write out the length of info */
fwrite((char*)&cloneInfoLength,1,4,fp);
/* Write out the clone info */
fwrite((char*)cloneInfo,1,cloneInfoLength,fp);
printf("CLone share %d written to %s.\n",shareIdx,cloneShare);
fclose(fp); /* Close the file */
return 0;
}
}