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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.
//
// (C) 2007 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
#ifdef __cplusplus
extern "C"
{
#endif
#include "pk11func.h"
#include "nspr.h"
#ifdef __cplusplus
#include <jni.h>
#include <assert.h>
#include <string.h>
}
#endif
#include <memory.h>
#include <assert.h>
#include <stdio.h>
#include <cstdarg>
#include <string>
#include <stdlib.h>
#include "Buffer.h"
#include "SymKey.h"
#define DES2_WORKAROUND
PRFileDesc *d = NULL;
/**
* Encrypt 'cc_len' bytes of data in 'input' with key kek_key.
* Result goes into buffer 'output'
* Returns PR_FAILURE if there was an error
*/
PRStatus EncryptData(const Buffer &kek_key, jbyte * input,int cc_len, Buffer &output)
{
PRStatus rv = PR_FAILURE;
PK11SymKey *master = NULL;
PK11SlotInfo *slot = PK11_GetInternalKeySlot();
PK11Context *context = NULL;
int i;
SECStatus s = SECFailure;
int len;
static SECItem noParams = { siBuffer, 0, 0 };
#ifdef DES2_WORKAROUND
unsigned char masterKeyData[24];
#else
unsigned char masterKeyData[16];
#endif
SECItem masterKeyItem = {siBuffer, masterKeyData, sizeof(masterKeyData) };
unsigned char result[8];
// convert 16-byte to 24-byte triple-DES key
memcpy(masterKeyData, kek_key, 16);
#ifdef DES2_WORKAROUND
memcpy(masterKeyData+16, kek_key, 8);
#endif
master = PK11_ImportSymKeyWithFlags(slot, CKM_DES3_ECB,
PK11_OriginGenerated, CKA_ENCRYPT, &masterKeyItem,
CKF_ENCRYPT, PR_FALSE, 0);
if (master == NULL)
{
goto done;
}
context = PK11_CreateContextBySymKey(CKM_DES3_ECB, CKA_ENCRYPT, master,
&noParams);
if (context == NULL)
{
goto done;
}
for(i = 0;i < (int)cc_len;i += 8)
{
s = PK11_CipherOp(context, result, &len, 8,
(unsigned char *)(input+i), 8);
if (s != SECSuccess)
{
goto done;
}
output.replace(i, result, 8);
}
rv = PR_SUCCESS;
done:
/* memset(masterKeyData, 0, sizeof masterKeyData); */
if (context != NULL)
{
PK11_DestroyContext(context, PR_TRUE);
context = NULL;
}
if (slot != NULL)
{
PK11_FreeSlot(slot);
slot = NULL;
}
if (master != NULL)
{
PK11_FreeSymKey(master);
master = NULL;
}
return rv;
}
void GetKeyName(jbyte *keyVersion, char *keyname)
{
int index=0;
if(strlen(masterKeyPrefix)!=0)
{
index= strlen(masterKeyPrefix);
strcpy(keyname,masterKeyPrefix);
}
keyname[index+0]='#';
sprintf(keyname+index+1,"%.2d", keyVersion[0]);
keyname[index+3]='#';
sprintf(keyname+index+4,"%.2d", keyVersion[1]);
}
extern "C" JNIEXPORT jbyteArray JNICALL Java_com_netscape_symkey_SessionKey_EncryptData
(JNIEnv *, jclass, jstring, jstring, jbyteArray, jbyteArray, jbyteArray, jbyteArray, jstring);
extern "C" JNIEXPORT jbyteArray JNICALL
Java_com_netscape_symkey_SessionKey_EncryptData(JNIEnv * env, jclass this2, jstring j_tokenName, jstring j_keyName, jbyteArray j_in, jbyteArray keyInfo, jbyteArray CUID, jbyteArray kekKeyArray, jstring useSoftToken_s)
{
int status = PR_FAILURE;
jbyte * kek_key = (jbyte*)(env)->GetByteArrayElements(kekKeyArray, NULL);
jbyte * keyVersion = (jbyte*)(env)->GetByteArrayElements( keyInfo, NULL);
jbyte * cuidValue = (jbyte*)(env)->GetByteArrayElements( CUID, NULL);
jbyte *cc = (jbyte*)(env)->GetByteArrayElements( j_in, NULL);
int cc_len = (env)->GetArrayLength(j_in);
Buffer kek_buffer = Buffer((BYTE*)kek_key, 16);
Buffer out = Buffer(16, (BYTE)0);
/* generate kek key */
/* identify the masterKey by KeyInfo in TKS */
BYTE kekData[KEYLENGTH];
char keyname[KEYNAMELENGTH];
GetDiversificationData(cuidValue,kekData,kek);
PK11SlotInfo *slot = NULL;
if(j_tokenName != NULL)
{
char *tokenNameChars = (char *)(env)->GetStringUTFChars(j_tokenName, NULL);
slot = ReturnSlot(tokenNameChars);
(env)->ReleaseStringUTFChars(j_tokenName, (const char *)tokenNameChars);
tokenNameChars = NULL;
}
if(j_keyName != NULL)
{
char *keyNameChars= (char *)(env)->GetStringUTFChars(j_keyName, NULL);
strcpy(keyname,keyNameChars);
env->ReleaseStringUTFChars(j_keyName, (const char *)keyNameChars);
keyNameChars = NULL;
}
else
{
GetKeyName(keyVersion,keyname);
}
PK11SymKey *masterKey = NULL;
if (keyVersion[0] == 0x1 && keyVersion[1]== 0x1 &&strcmp( keyname, "#01#01") == 0 ||
(keyVersion[0] == -1 && strstr(keyname, "#FF") ))
{
/* default development keyset */
status = EncryptData(kek_buffer, cc, cc_len, out);
}
else
{
if (slot!=NULL)
{
masterKey = ReturnSymKey( slot,keyname);
/* We need to use internal so that the key
* can be exported by using PK11_GetKeyData()
*/
if (masterKey != NULL)
{
PK11SymKey *kekKey = ComputeCardKeyOnToken(masterKey,kekData);
if (kekKey != NULL)
{
Buffer input = Buffer((BYTE*)cc, cc_len);
status = EncryptDataWithCardKey(kekKey, input, out);
if (kekKey != NULL)
{
PK11_FreeSymKey( kekKey);
kekKey = NULL;
}
}
}
}
}
if (masterKey != NULL)
{
PK11_FreeSymKey( masterKey);
masterKey = NULL;
}
if( slot!= NULL )
{
PK11_FreeSlot( slot );
slot = NULL;
}
jbyteArray handleBA=NULL;
if (status != PR_FAILURE && (out.size()>0) )
{
jbyte *handleBytes=NULL;
handleBA = (env)->NewByteArray( out.size());
handleBytes = (env)->GetByteArrayElements(handleBA, NULL);
BYTE* outp = (BYTE*)out;
memcpy(handleBytes, outp,out.size());
env->ReleaseByteArrayElements( handleBA, handleBytes, 0);
handleBytes=NULL;
}
env->ReleaseByteArrayElements(j_in, cc, JNI_ABORT);
env->ReleaseByteArrayElements(keyInfo, keyVersion, JNI_ABORT);
env->ReleaseByteArrayElements(CUID, cuidValue, JNI_ABORT);
return handleBA;
}
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