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|
/* --- BEGIN COPYRIGHT BLOCK ---
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright (C) 2007 Red Hat, Inc.
* All rights reserved.
* --- END COPYRIGHT BLOCK ---
*/
#include "tkstool.h"
SECStatus
TKS_ReadInputFileIntoSECItem( char *input,
char *hexInternalKeyKCV,
int hexInternalKeyKCVLength,
char *wrappedKeyName,
SECItem *wrappedKey )
{
char buf[1];
PRFileDesc *fd = NULL;
PRInt32 c = 0;
PRInt32 k = 0;
PRInt32 count = 0;
PRIntn firstCount = 0;
PRIntn secondCount = 0;
PRIntn thirdCount = 0;
PRIntn i = 0;
SECItem hexWrappedKey = { siBuffer,
NULL,
0 };
SECStatus status = SECFailure;
/* Create a clean new hex display buffer for this wrapped key */
hexWrappedKey.type = ( SECItemType ) siBuffer;
hexWrappedKey.len = ( ( wrappedKey->len * 2 ) + 1 );
hexWrappedKey.data = ( unsigned char * )
PORT_ZAlloc( hexWrappedKey.len );
if( hexWrappedKey.data == NULL ) {
status = SECFailure;
goto destroyHexWrappedKey;
}
/* open the input file read-only */
fd = PR_OpenFile( input, PR_RDONLY, 0666 );
if( !fd ) {
status = SECFailure;
goto destroyHexWrappedKey;
}
/* read in the wrapped key */
while( c < HEX_WRAPPED_KEY_LENGTH ) {
/* read in the next byte */
count = PR_Read( fd, buf, 1 );
/* check for EOF */
if( count > 0 ) {
/* save acceptable hex characters */
/* silently throw anything else away */
switch( *buf ) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
/* acceptable character; save it as typed */
hexWrappedKey.data[c] = buf[0];
break;
case 'A':
case 'a':
/* acceptable character; save uppercase version */
hexWrappedKey.data[c] = 'A';
break;
case 'B':
case 'b':
/* acceptable character; save uppercase version */
hexWrappedKey.data[c] = 'B';
break;
case 'C':
case 'c':
/* acceptable character; save uppercase version */
hexWrappedKey.data[c] = 'C';
break;
case 'D':
case 'd':
/* acceptable character; save uppercase version */
hexWrappedKey.data[c] = 'D';
break;
case 'E':
case 'e':
/* acceptable character; save uppercase version */
hexWrappedKey.data[c] = 'E';
break;
case 'F':
case 'f':
/* acceptable character; save uppercase version */
hexWrappedKey.data[c] = 'F';
break;
default:
/* unacceptable character; don't save it */
continue;
}
/* increment the number of wrapped key bytes read */
c++;
}
}
/* insure that the wrapped key was completely obtained */
if( c != HEX_WRAPPED_KEY_LENGTH ) {
status = SECFailure;
goto destroyHexWrappedKey;
}
/* Convert these wrapped key hex digits */
/* into the data portion of a SECItem */
TKS_ConvertStringOfHexCharactersIntoBitStream( ( char * ) hexWrappedKey.data,
( hexWrappedKey.len - 1 ),
wrappedKey->data );
/* read in the wrapped key KCV */
while( k < HEX_WRAPPED_KEY_KCV_LENGTH ) {
count = PR_Read( fd, buf, 1 );
if( count > 0 ) {
/* save acceptable hex characters; silently */
/* throw anything else away */
switch( *buf ) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
/* acceptable character; save it as typed */
hexInternalKeyKCV[k] = buf[0];
break;
case 'A':
case 'a':
/* acceptable character; save uppercase version */
hexInternalKeyKCV[k] = 'A';
break;
case 'B':
case 'b':
/* acceptable character; save uppercase version */
hexInternalKeyKCV[k] = 'B';
break;
case 'C':
case 'c':
/* acceptable character; save uppercase version */
hexInternalKeyKCV[k] = 'C';
break;
case 'D':
case 'd':
/* acceptable character; save uppercase version */
hexInternalKeyKCV[k] = 'D';
break;
case 'E':
case 'e':
/* acceptable character; save uppercase version */
hexInternalKeyKCV[k] = 'E';
break;
case 'F':
case 'f':
/* acceptable character; save uppercase version */
hexInternalKeyKCV[k] = 'F';
break;
default:
/* unacceptable character; don't save it */
continue;
}
/* increment the number of key KCV bytes read */
k++;
}
}
/* insure that the wrapped key KCV was completely obtained */
if( k != HEX_WRAPPED_KEY_KCV_LENGTH ) {
status = SECFailure;
goto destroyHexWrappedKey;
}
/* For convenience, display the read-in wrapped key */
/* and its associated KCV to the user. */
if( hexWrappedKey.data != NULL ) {
/* Display this final wrapped key */
if( ( hexWrappedKey.len - 1 ) !=
HEX_WRAPPED_KEY_LENGTH ) {
/* invalid key length */
PR_fprintf( PR_STDERR,
"ERROR: Invalid data length of %d bytes!\n\n\n",
hexWrappedKey.len );
status = SECFailure;
goto destroyHexWrappedKey;
} else {
/* Print wrapped data blob */
PR_fprintf( PR_STDOUT,
"\n wrapped data: " );
/* Print first DES_LENGTH bytes */
if( wrappedKey->len == ( 3 * DES_LENGTH ) ) {
firstCount = ( ( hexWrappedKey.len - 1 ) / 3 );
} else {
firstCount = ( ( hexWrappedKey.len - 1 ) / 2 );
}
for( i = 0; i < firstCount; i += 4 ) {
PR_fprintf( PR_STDOUT,
"%c%c%c%c ",
hexWrappedKey.data[i],
hexWrappedKey.data[i + 1],
hexWrappedKey.data[i + 2],
hexWrappedKey.data[i + 3] );
}
/* Print appropriate padding length */
PR_fprintf( PR_STDOUT, "\n " );
/* Print second DES_LENGTH bytes */
secondCount = firstCount * 2;
for( i = firstCount; i < secondCount; i += 4 ) {
PR_fprintf( PR_STDOUT,
"%c%c%c%c ",
hexWrappedKey.data[i],
hexWrappedKey.data[i + 1],
hexWrappedKey.data[i + 2],
hexWrappedKey.data[i + 3] );
}
/* print out last 8 bytes of triple-DES keys */
if( wrappedKey->len == ( 3 * DES_LENGTH ) ) {
/* Print appropriate padding length */
PR_fprintf( PR_STDOUT, "\n " );
/* Print third DES_LENGTH bytes */
thirdCount = hexWrappedKey.len;
for( i = secondCount; i < thirdCount; i += 4 ) {
PR_fprintf( PR_STDOUT,
"%c%c%c%c ",
hexWrappedKey.data[i],
hexWrappedKey.data[i + 1],
hexWrappedKey.data[i + 2],
hexWrappedKey.data[i + 3] );
}
}
/* Print appropriate vertical spacing */
PR_fprintf( PR_STDOUT, "\n\n\n" );
}
}
if( hexInternalKeyKCV != NULL ) {
/* Display this final wrapped key's KCV */
if( ( hexInternalKeyKCVLength - 1 ) !=
HEX_WRAPPED_KEY_KCV_LENGTH ) {
/* invalid key length */
PR_fprintf( PR_STDERR,
"ERROR: Invalid key KCV length "
"of %d bytes!\n\n\n",
hexInternalKeyKCVLength );
status = SECFailure;
goto destroyHexWrappedKey;
} else {
PR_fprintf( PR_STDOUT,
" master key KCV: "
"%c%c%c%c %c%c%c%c\n (pre-computed KCV of the "
"master key residing inside the wrapped data)\n\n\n",
hexInternalKeyKCV[0],
hexInternalKeyKCV[1],
hexInternalKeyKCV[2],
hexInternalKeyKCV[3],
hexInternalKeyKCV[4],
hexInternalKeyKCV[5],
hexInternalKeyKCV[6],
hexInternalKeyKCV[7] );
}
}
/* close the input file */
PR_Close( fd );
status = SECSuccess;
destroyHexWrappedKey:
/* Destroy the hex wrapped key */
if( hexWrappedKey.data != NULL ) {
PORT_ZFree( ( unsigned char * )
hexWrappedKey.data,
hexWrappedKey.len );
hexWrappedKey.data = NULL;
hexWrappedKey.len = 0;
}
return status;
}
SECStatus
TKS_WriteSECItemIntoOutputFile( SECItem *wrappedKey,
char *wrappedKeyName,
char *hexInternalKeyKCV,
int hexInternalKeyKCVLength,
char *output )
{
PRFileDesc *fd = NULL;
PRInt32 count = 0;
PRInt32 r = 0;
PRIntn firstCount = 0;
PRIntn secondCount = 0;
PRIntn thirdCount = 0;
PRIntn i = 0;
SECItem hexWrappedKey = { siBuffer,
NULL,
0 };
SECStatus status = SECFailure;
/* Create a clean new hex display buffer for this wrapped key */
hexWrappedKey.type = ( SECItemType ) siBuffer;
hexWrappedKey.len = ( ( wrappedKey->len * 2 ) + 1 );
hexWrappedKey.data = ( unsigned char * )
PORT_ZAlloc( hexWrappedKey.len );
if( hexWrappedKey.data == NULL ) {
status = SECFailure;
goto destroyHexWrappedKey;
}
/* Convert this wrapped key into hex digits */
TKS_StringToHex( ( PRUint8 * ) wrappedKey->data,
( PRIntn ) wrappedKey->len,
( PRUint8 * ) hexWrappedKey.data,
( PRIntn ) hexWrappedKey.len );
/* For convenience, display this wrapped key to the user. */
if( hexWrappedKey.data != NULL ) {
/* Display this final wrapped key */
if( ( hexWrappedKey.len - 1 ) !=
HEX_WRAPPED_KEY_LENGTH ) {
/* invalid key length */
PR_fprintf( PR_STDERR,
"ERROR: Invalid data length of %d bytes!\n\n\n",
hexWrappedKey.len );
status = SECFailure;
goto destroyHexWrappedKey;
} else {
/* Print wrapped data blob */
PR_fprintf( PR_STDOUT,
" wrapped data: " );
/* Print first DES_LENGTH bytes */
if( wrappedKey->len == ( 3 * DES_LENGTH ) ) {
firstCount = ( ( hexWrappedKey.len - 1 ) / 3 );
} else {
firstCount = ( ( hexWrappedKey.len - 1 ) / 2 );
}
for( i = 0; i < firstCount; i += 4 ) {
PR_fprintf( PR_STDOUT,
"%c%c%c%c ",
hexWrappedKey.data[i],
hexWrappedKey.data[i + 1],
hexWrappedKey.data[i + 2],
hexWrappedKey.data[i + 3] );
}
/* Print appropriate padding length */
PR_fprintf( PR_STDOUT, "\n " );
/* Print second DES_LENGTH bytes */
secondCount = firstCount * 2;
for( i = firstCount; i < secondCount; i += 4 ) {
PR_fprintf( PR_STDOUT,
"%c%c%c%c ",
hexWrappedKey.data[i],
hexWrappedKey.data[i + 1],
hexWrappedKey.data[i + 2],
hexWrappedKey.data[i + 3] );
}
/* print out last 8 bytes of triple-DES keys */
if( wrappedKey->len == ( 3 * DES_LENGTH ) ) {
/* Print appropriate padding length */
PR_fprintf( PR_STDOUT, "\n " );
/* Print third DES_LENGTH bytes */
thirdCount = hexWrappedKey.len;
for( i = secondCount; i < thirdCount; i += 4 ) {
PR_fprintf( PR_STDOUT,
"%c%c%c%c ",
hexWrappedKey.data[i],
hexWrappedKey.data[i + 1],
hexWrappedKey.data[i + 2],
hexWrappedKey.data[i + 3] );
}
}
/* Print appropriate vertical spacing */
PR_fprintf( PR_STDOUT, "\n\n\n" );
}
}
/* For convenience, display this wrapped key's */
/* master key KCV to the user. */
if( ( hexInternalKeyKCV != NULL ) &&
( hexInternalKeyKCVLength == HEX_WRAPPED_KEY_KCV_LENGTH ) ) {
/* display this wrapped key's computed KCV value (in hex) */
PR_fprintf( PR_STDOUT,
" master key KCV: "
"%c%c%c%c %c%c%c%c\n (computed KCV of the "
"master key residing inside the wrapped data)\n\n\n",
hexInternalKeyKCV[0],
hexInternalKeyKCV[1],
hexInternalKeyKCV[2],
hexInternalKeyKCV[3],
hexInternalKeyKCV[4],
hexInternalKeyKCV[5],
hexInternalKeyKCV[6],
hexInternalKeyKCV[7] );
}
/* open the output file read-write */
fd = PR_OpenFile( output, ( PR_RDWR | PR_CREATE_FILE ), 0666 );
if( !fd ) {
status = SECFailure;
goto destroyHexWrappedKey;
}
/* write out the wrapped key (in hex) to the output file */
while( count < HEX_WRAPPED_KEY_LENGTH ) {
/* write out 4 bytes */
r = PR_Write( fd, &( hexWrappedKey.data[count] ), 4 );
if( r != 4 ) {
status = SECFailure;
goto destroyHexWrappedKey;
}
/* increment the byte count by 4 */
count += 4;
if( count >= HEX_WRAPPED_KEY_LENGTH ) {
r = PR_Write( fd, "\n", 1 );
if( r != 1 ) {
status = SECFailure;
goto destroyHexWrappedKey;
}
} else {
r = PR_Write( fd, " ", 1 );
if( r != 1 ) {
status = SECFailure;
goto destroyHexWrappedKey;
}
}
}
/* reinitialize count */
count = 0;
/* write out the master key KCV (in hex) to the output file */
while( count < HEX_WRAPPED_KEY_KCV_LENGTH ) {
/* write out 4 bytes */
r = PR_Write( fd, &( hexInternalKeyKCV[count] ), 4 );
if( r != 4 ) {
status = SECFailure;
goto destroyHexWrappedKey;
}
/* increment the byte count by 4 */
count += 4;
if( count >= HEX_WRAPPED_KEY_KCV_LENGTH ) {
r = PR_Write( fd, "\n", 1 );
if( r != 1 ) {
status = SECFailure;
goto destroyHexWrappedKey;
}
} else {
r = PR_Write( fd, " ", 1 );
if( r != 1 ) {
status = SECFailure;
goto destroyHexWrappedKey;
}
}
}
/* close the output file */
PR_Close( fd );
status = SECSuccess;
destroyHexWrappedKey:
/* Destroy the hex wrapped key */
if( hexWrappedKey.data != NULL ) {
PORT_ZFree( ( unsigned char * )
hexWrappedKey.data,
hexWrappedKey.len );
hexWrappedKey.data = NULL;
hexWrappedKey.len = 0;
}
return status;
}
SECStatus
TKS_WriteSharedKeyIntoOutputFile( char *output )
{
SECStatus status = SECSuccess;
PRFileDesc *fd = NULL;
PRInt32 r = 0;
fd = PR_Open( output, ( PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE ), 0600 );
if( !fd ) {
status = SECFailure;
goto done;
}
r = PR_Write( fd, "<SharedKey></SharedKey>\n", 24 );
if( r < 0 ) {
status = SECFailure;
goto close;
}
close:
PR_Close( fd );
done:
return status;
}
|
