/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Netscape security libraries.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1994-2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * under the terms of either the GPL or the LGPL, and not to allow others to
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 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

/*
** symkeyutil.c
**
** utility for managing symetric keys in the database or the token
**
*/

/*
 * Wish List for this utility:
 *  1) Display and Set the CKA_ operation flags for the key.
 *  2) Modify existing keys
 *  3) Copy keys
 *  4) Read CKA_ID and display for keys.
 *  5) Option to store CKA_ID in a file on key creation.
 *  6) Encrypt, Decrypt, Hash, and Mac with generated keys.
 *  7) Use asymetric keys to wrap and unwrap keys.
 *  8) Derive.
 *  9) PBE keys.
 */

#include <stdio.h>
#include <string.h>

#include "secutil.h"

#include "nspr.h"

#include "pk11func.h"
#include "secasn1.h"
#include "cert.h"
#include "cryptohi.h"
#include "secoid.h"
#include "certdb.h"
#include "nss.h"

typedef struct _KeyTypes {
    CK_KEY_TYPE	keyType;
    CK_MECHANISM_TYPE mechType;
    CK_MECHANISM_TYPE wrapMech;
    char *label;
} KeyTypes;

static KeyTypes keyArray[] = {
#ifdef RECOGNIZE_ASYMETRIC_TYPES
    { CKK_RSA, CKM_RSA_PKCS, CKM_RSA_PKCS, "rsa" },
    { CKK_DSA, CKM_DSA, CKM_INVALID_MECHANISM, "dsa" },
    { CKK_DH, CKM_DH_PKCS_DERIVE, CKM_INVALID_MECHANISM, "dh" },
    { CKK_EC, CKM_ECDSA, CKM_INVALID_MECHANISM, "ec" },
    { CKK_X9_42_DH, CKM_X9_42_DH_DERIVE, CKM_INVALID_MECHANISM, "x9.42dh" },
    { CKK_KEA, CKM_KEA_KEY_DERIVE, CKM_INVALID_MECHANISM, "kea" },
#endif
    { CKK_GENERIC_SECRET, CKM_SHA_1_HMAC, CKM_INVALID_MECHANISM, "generic" },
    { CKK_RC2, CKM_RC2_CBC, CKM_RC2_ECB,"rc2" },
    /* don't define a wrap mech for RC-4 since it's note really safe */
    { CKK_RC4, CKM_RC4, CKM_INVALID_MECHANISM, "rc4" }, 
    { CKK_DES, CKM_DES_CBC, CKM_DES_ECB,"des" },
    { CKK_DES2, CKM_DES2_KEY_GEN, CKM_DES3_ECB, "des2" },
    { CKK_DES3, CKM_DES3_KEY_GEN, CKM_DES3_ECB, "des3" },
    { CKK_CAST, CKM_CAST_CBC, CKM_CAST_ECB, "cast" },
    { CKK_CAST3, CKM_CAST3_CBC, CKM_CAST3_ECB, "cast3" },
    { CKK_CAST5, CKM_CAST5_CBC, CKM_CAST5_ECB, "cast5" },
    { CKK_CAST128, CKM_CAST128_CBC, CKM_CAST128_ECB, "cast128" },
    { CKK_RC5, CKM_RC5_CBC, CKM_RC5_ECB, "rc5" },
    { CKK_IDEA, CKM_IDEA_CBC, CKM_IDEA_ECB, "idea" },
    { CKK_SKIPJACK, CKM_SKIPJACK_CBC64, CKM_SKIPJACK_WRAP, "skipjack" },
    { CKK_BATON, CKM_BATON_CBC128, CKM_BATON_WRAP, "baton" },
    { CKK_JUNIPER, CKM_JUNIPER_CBC128, CKM_JUNIPER_WRAP, "juniper" },
    { CKK_CDMF, CKM_CDMF_CBC, CKM_CDMF_ECB, "cdmf" },
    { CKK_AES, CKM_AES_CBC, CKM_AES_ECB, "aes" },
    { CKK_CAMELLIA, CKM_CAMELLIA_CBC, CKM_CAMELLIA_ECB, "camellia" },
};

static int keyArraySize = sizeof(keyArray)/sizeof(keyArray[0]);

int
GetLen(PRFileDesc* fd)
{
    PRFileInfo info;

    if (PR_SUCCESS != PR_GetOpenFileInfo(fd, &info)) {
        return -1;
    }

    return info.size;
}

int
ReadBuf(char *inFile, SECItem *item)
{
    int len;
    int ret;
    PRFileDesc* fd = PR_Open(inFile, PR_RDONLY, 0);
    if (NULL == fd) {
        SECU_PrintError("symkeyutil", "PR_Open failed");
	return -1;
    }

    len = GetLen(fd);
    if (len < 0) {
	SECU_PrintError("symkeyutil", "PR_GetOpenFileInfo failed");
	return -1;
    }
    item->data = (unsigned char *)PORT_Alloc(len);
    if (item->data == NULL) {
	fprintf(stderr,"Failed to allocate %d to read file %s\n",len,inFile);
	return -1;
    }

    ret = PR_Read(fd,item->data,item->len);
    if (ret < 0) {
	SECU_PrintError("symkeyutil", "PR_Read failed");
	PORT_Free(item->data);
	item->data = NULL;
	return -1;
    }
    PR_Close(fd);
    item->len = len;
    return 0;
}

int
WriteBuf(char *inFile, SECItem *item)
{
    int ret;
    PRFileDesc* fd = PR_Open(inFile, PR_WRONLY|PR_CREATE_FILE, 0x200);
    if (NULL == fd) {
        SECU_PrintError("symkeyutil", "PR_Open failed");
	return -1;
    }

    ret = PR_Write(fd,item->data,item->len);
    if (ret < 0) {
	SECU_PrintError("symkeyutil", "PR_Write failed");
	return -1;
    }
    PR_Close(fd);
    return 0;
}

CK_KEY_TYPE
GetKeyTypeFromString(const char *keyString)
{
    int i;
    for (i=0; i < keyArraySize; i++) {
	if (PL_strcasecmp(keyString,keyArray[i].label) == 0) {
	    return keyArray[i].keyType;
	}
    }
    return (CK_KEY_TYPE)-1;
}

CK_MECHANISM_TYPE
GetKeyMechFromString(const char *keyString)
{
    int i;
    for (i=0; i < keyArraySize; i++) {
	if (PL_strcasecmp(keyString,keyArray[i].label) == 0) {
	    return keyArray[i].mechType;
	}
    }
    return (CK_MECHANISM_TYPE)-1;
}

const char *
GetStringFromKeyType(CK_KEY_TYPE type)
{
    int i;
    for (i=0; i < keyArraySize; i++) {
	if (keyArray[i].keyType == type) {
	    return keyArray[i].label;
	}
    }
    return "unmatched";
}

CK_MECHANISM_TYPE
GetWrapFromKeyType(CK_KEY_TYPE type)
{
    int i;
    for (i=0; i < keyArraySize; i++) {
	if (keyArray[i].keyType == type) {
	    return keyArray[i].wrapMech;
	}
    }
    return CKM_INVALID_MECHANISM;
}

CK_MECHANISM_TYPE
GetWrapMechanism(PK11SymKey *symKey)
{
    CK_KEY_TYPE type = PK11_GetSymKeyType(symKey);

    return GetWrapFromKeyType(type);
}

int
GetDigit(char c)
{
    if (c == 0) {
	return -1;
    }
    if (c <= '9' && c >= '0') {
	return c - '0';
    }
    if (c <= 'f' && c >= 'a') {
	return c - 'a' + 0xa;
    }
    if (c <= 'F' && c >= 'A') {
	return c - 'A' + 0xa;
    }
    return -1;
}

char
ToDigit(unsigned char c)
{
    c = c & 0xf;
    if (c <= 9) {
	return (char) (c+'0');
    }
    return (char) (c+'a'-0xa);
}

char *
BufToHex(SECItem *outbuf)
{
    int len = outbuf->len * 2 +1;
    char *string, *ptr;
    unsigned int i;

    string = PORT_Alloc(len);

    ptr = string;
    for (i=0; i < outbuf->len; i++) {
	*ptr++ = ToDigit(outbuf->data[i] >> 4);
	*ptr++ = ToDigit(outbuf->data[i] & 0xf);
    }
    *ptr = 0;
    return string;
}


int
HexToBuf(char *inString, SECItem *outbuf)
{
    int len = strlen(inString);
    int outlen = len+1/2;
    int trueLen = 0;

    outbuf->data = PORT_Alloc(outlen);
    if (outbuf->data) {
	return -1;
    }

    while (*inString) {
	int digit1, digit2;
	digit1 = GetDigit(*inString++);
	digit2 = GetDigit(*inString++);
	if ((digit1 == -1) || (digit2 == -1)) {
	    PORT_Free(outbuf->data);
	    outbuf->data = NULL;
	    return -1;
	}
	outbuf->data[trueLen++] = digit1 << 4 | digit2;
    }
    outbuf->len = trueLen;
    return 0;
}

void
printBuf(unsigned char *data, int len)
{
    int i;

    for (i=0; i < len; i++) {
	printf("%02x",data[i]);
    }
}

void
PrintKey(PK11SymKey *symKey)
{
    char *name = PK11_GetSymKeyNickname(symKey);
    int len = PK11_GetKeyLength(symKey);
    int strength = PK11_GetKeyStrength(symKey, NULL);
    SECItem *value = NULL;
    CK_KEY_TYPE type = PK11_GetSymKeyType(symKey);
    (void) PK11_ExtractKeyValue(symKey);

    value = PK11_GetKeyData(symKey);

    printf("%-20s %3d   %4d   %10s  ", name ? name: " ", len, strength, 
				GetStringFromKeyType(type));
    if (value && value->data) {
	printBuf(value->data, value->len);
    } else {
	printf("<restricted>");
    }
    printf("\n");
}

SECStatus
ListKeys(PK11SlotInfo *slot, int *printLabel, void *pwd) {
    PK11SymKey *keyList;
    SECStatus rv = PK11_Authenticate(slot, PR_FALSE, pwd);
    if (rv != SECSuccess) {
        return rv;;
    }

    keyList = PK11_ListFixedKeysInSlot(slot, NULL, pwd);
    if (keyList) {
	if (*printLabel) {
            printf("     Name            Len Strength     Type    Data\n");
	    *printLabel = 0;
	}
	printf("%s:\n",PK11_GetTokenName(slot));
    }
    while (keyList) {
        PK11SymKey *freeKey = keyList;
        PrintKey(keyList);
        keyList = PK11_GetNextSymKey(keyList);
        PK11_FreeSymKey(freeKey);
    }
    return SECSuccess;
}

PK11SymKey *
FindKey(PK11SlotInfo *slot, char *name, SECItem *id, void *pwd)
{
    PK11SymKey *key = NULL;
    SECStatus rv = PK11_Authenticate(slot, PR_FALSE, pwd);

    if (rv != SECSuccess) {
	return NULL;
    }


    if (id->data) {
	key = PK11_FindFixedKey(slot,CKM_INVALID_MECHANISM, id, pwd);
    }
    if (name && !key) {
	key = PK11_ListFixedKeysInSlot(slot,name, pwd);
    }

    if (key) {
	printf("Found a key\n");
	PrintKey(key);
    }
    return key;
}

PRBool
IsKeyList(PK11SymKey *symKey)
{
   return (PRBool) (PK11_GetNextSymKey(symKey) != NULL);
}

void
FreeKeyList(PK11SymKey *symKey)
{
   PK11SymKey *next,*current;

   for (current = symKey; current; current = next) {
	next = PK11_GetNextSymKey(current);
	PK11_FreeSymKey(current);
   }
   return;
}
	   
static void 
Usage(char *progName)
{
#define FPS fprintf(stderr, 
    FPS "Type %s -H for more detailed descriptions\n", progName);
    FPS "Usage:");
    FPS "\t%s -L [std_opts] [-r]\n", progName);
    FPS "\t%s -K [-n name] -t type [-s size] [-i id |-j id_file] [std_opts]\n", progName);
    FPS "\t%s -D <[-n name | -i id | -j id_file> [std_opts]\n", progName);
    FPS "\t%s -I [-n name] [-t type] [-i id | -j id_file] -k data_file [std_opts]\n", progName);
    FPS "\t%s -E  <-nname | -i id | -j id_file> [-t type] -k data_file [-r] [std_opts]\n", progName);
    FPS "\t%s -U [-n name] [-t type] [-i id | -j id_file] -k data_file <wrap_opts> [std_opts]\n", progName);
    FPS "\t%s -W <-n name | -i id | -j id_file> [-t type] -k data_file [-r] <wrap_opts> [std_opts]\n", progName);
    FPS "\t%s -M <-n name | -i id | -j id_file> -g target_token [std_opts]\n", progName);
    FPS "\t\t std_opts -> [-d certdir] [-P dbprefix] [-p password] [-f passwordFile] [-h token]\n");
    FPS "\t\t wrap_opts -> <-w wrap_name | -x wrap_id | -y id_file>\n");
    exit(1);
}

static void LongUsage(char *progName)
{
    int i;
    FPS "%-15s List all the keys.\n", "-L");
    FPS "%-15s Generate a new key.\n", "-K");
    FPS "%-20s Specify the nickname of the new key\n",
	"   -n name");
    FPS "%-20s Specify the id in hex of the new key\n",
	"   -i key id");
    FPS "%-20s Specify a file to read the id of the new key\n",
	"   -j key id file");
    FPS "%-20s Specify the keyType of the new key\n",
	"   -t type");
    FPS "%-20s", "  valid types: ");
    for (i=0; i < keyArraySize ; i++) {
	FPS "%s%c", keyArray[i].label, i == keyArraySize-1? '\n':',');
    }
    FPS "%-20s Specify the size of the new key in bytes (required by some types)\n",
	"   -s size");
    FPS "%-15s Delete a key.\n", "-D");
    FPS "%-20s Specify the nickname of the key to delete\n",
	"   -n name");
    FPS "%-20s Specify the id in hex of the key to delete\n",
	"   -i key id");
    FPS "%-20s Specify a file to read the id of the key to delete\n",
	"   -j key id file");
    FPS "%-15s Import a new key from a data file.\n", "-I");
    FPS "%-20s Specify the data file to read the key from.\n",
	"   -k key file");
    FPS "%-20s Specify the nickname of the new key\n",
	"   -n name");
    FPS "%-20s Specify the id in hex of the new key\n",
	"   -i key id");
    FPS "%-20s Specify a file to read the id of the new key\n",
	"   -j key id file");
    FPS "%-20s Specify the keyType of the new key\n",
	"   -t type");
    FPS "%-20s", "  valid types: ");
    for (i=0; i < keyArraySize ; i++) {
	FPS "%s%c", keyArray[i].label, i == keyArraySize-1? '\n':',');
    }
    FPS "%-15s Export a key to a data file.\n", "-E");
    FPS "%-20s Specify the data file to write the key to.\n",
	"   -k key file");
    FPS "%-20s Specify the nickname of the key to export\n",
	"   -n name");
    FPS "%-20s Specify the id in hex of the key to export\n",
	"   -i key id");
    FPS "%-20s Specify a file to read the id of the key to export\n",
	"   -j key id file");
    FPS "%-15s Move a key to a new token.\n", "-M");
    FPS "%-20s Specify the nickname of the key to move\n",
	"   -n name");
    FPS "%-20s Specify the id in hex of the key to move\n",
	"   -i key id");
    FPS "%-20s Specify a file to read the id of the key to move\n",
	"   -j key id file");
    FPS "%-20s Specify the token to move the key to\n",
	"   -g target token");
    FPS "%-15s Unwrap a new key from a data file.\n", "-U");
    FPS "%-20s Specify the data file to read the encrypted key from.\n",
	"   -k key file");
    FPS "%-20s Specify the nickname of the new key\n",
	"   -n name");
    FPS "%-20s Specify the id in hex of the new key\n",
	"   -i key id");
    FPS "%-20s Specify a file to read the id of the new key\n",
	"   -j key id file");
    FPS "%-20s Specify the keyType of the new key\n",
	"   -t type");
    FPS "%-20s", "  valid types: ");
    for (i=0; i < keyArraySize ; i++) {
	FPS "%s%c", keyArray[i].label, i == keyArraySize-1? '\n':',');
    }
    FPS "%-20s Specify the nickname of the wrapping key\n",
	"   -w wrap name");
    FPS "%-20s Specify the id in hex of the wrapping key\n",
	"   -x wrap key id");
    FPS "%-20s Specify a file to read the id of the wrapping key\n",
	"   -y wrap key id file");
    FPS "%-15s Wrap a new key to a data file. [not yet implemented]\n", "-W");
    FPS "%-20s Specify the data file to write the encrypted key to.\n",
	"   -k key file");
    FPS "%-20s Specify the nickname of the key to wrap\n",
	"   -n name");
    FPS "%-20s Specify the id in hex of the key to wrap\n",
	"   -i key id");
    FPS "%-20s Specify a file to read the id of the key to wrap\n",
	"   -j key id file");
    FPS "%-20s Specify the nickname of the wrapping key\n",
	"   -w wrap name");
    FPS "%-20s Specify the id in hex of the wrapping key\n",
	"   -x wrap key id");
    FPS "%-20s Specify a file to read the id of the wrapping key\n",
	"   -y wrap key id file");
    FPS "%-15s Options valid for all commands\n", "std_opts");
    FPS "%-20s The directory where the NSS db's reside\n",
	"   -d certdir");
    FPS "%-20s Prefix for the NSS db's\n",
	"   -P db prefix");
    FPS "%-20s Specify password on the command line\n",
	"   -p password");
    FPS "%-20s Specify password file on the command line\n",
	"   -f password file");
    FPS "%-20s Specify token to act on\n",
	"   -h token");
    exit(1);
#undef FPS
}

/*  Certutil commands  */
enum {
    cmd_CreateNewKey = 0,
    cmd_DeleteKey,
    cmd_ImportKey,
    cmd_ExportKey,
    cmd_WrapKey,
    cmd_UnwrapKey,
    cmd_MoveKey,
    cmd_ListKeys,
    cmd_PrintHelp
};

/*  Certutil options */
enum {
    opt_CertDir = 0,
    opt_PasswordFile,
    opt_TargetToken,
    opt_TokenName,
    opt_KeyID,
    opt_KeyIDFile,
    opt_KeyType,
    opt_Nickname,
    opt_KeyFile,
    opt_Password,
    opt_dbPrefix,
    opt_RW,
    opt_KeySize,
    opt_WrapKeyName,
    opt_WrapKeyID,
    opt_WrapKeyIDFile,
    opt_NoiseFile
};

static secuCommandFlag symKeyUtil_commands[] =
{
	{ /* cmd_CreateNewKey        */  'K', PR_FALSE, 0, PR_FALSE },
	{ /* cmd_DeleteKey           */  'D', PR_FALSE, 0, PR_FALSE },
	{ /* cmd_ImportKey           */  'I', PR_FALSE, 0, PR_FALSE },
	{ /* cmd_ExportKey           */  'E', PR_FALSE, 0, PR_FALSE },
	{ /* cmd_WrapKey             */  'W', PR_FALSE, 0, PR_FALSE },
	{ /* cmd_UnwrapKey           */  'U', PR_FALSE, 0, PR_FALSE },
	{ /* cmd_MoveKey             */  'M', PR_FALSE, 0, PR_FALSE },
	{ /* cmd_ListKeys            */  'L', PR_FALSE, 0, PR_FALSE },
	{ /* cmd_PrintHelp           */  'H', PR_FALSE, 0, PR_FALSE },
};

static secuCommandFlag symKeyUtil_options[] =
{
	{ /* opt_CertDir             */  'd', PR_TRUE,  0, PR_FALSE },
	{ /* opt_PasswordFile        */  'f', PR_TRUE,  0, PR_FALSE },
	{ /* opt_TargetToken         */  'g', PR_TRUE,  0, PR_FALSE },
	{ /* opt_TokenName           */  'h', PR_TRUE,  0, PR_FALSE },
	{ /* opt_KeyID               */  'i', PR_TRUE,  0, PR_FALSE },
	{ /* opt_KeyIDFile           */  'j', PR_TRUE,  0, PR_FALSE },
	{ /* opt_KeyType             */  't', PR_TRUE,  0, PR_FALSE },
	{ /* opt_Nickname            */  'n', PR_TRUE,  0, PR_FALSE },
	{ /* opt_KeyFile             */  'k', PR_TRUE,  0, PR_FALSE },
	{ /* opt_Password            */  'p', PR_TRUE,  0, PR_FALSE },
	{ /* opt_dbPrefix            */  'P', PR_TRUE,  0, PR_FALSE },
	{ /* opt_RW                  */  'r', PR_FALSE, 0, PR_FALSE },
	{ /* opt_KeySize             */  's', PR_TRUE,  0, PR_FALSE },
	{ /* opt_WrapKeyName         */  'w', PR_TRUE,  0, PR_FALSE },
	{ /* opt_WrapKeyID           */  'x', PR_TRUE,  0, PR_FALSE },
	{ /* opt_WrapKeyIDFile       */  'y', PR_TRUE,  0, PR_FALSE },
	{ /* opt_NoiseFile           */  'z', PR_TRUE,  0, PR_FALSE },
};

int 
main(int argc, char **argv)
{
    PK11SlotInfo *slot = NULL;
    char *      slotname        = "internal";
    char *      certPrefix      = "";
    CK_MECHANISM_TYPE keyType   = CKM_SHA_1_HMAC;
    int         keySize		= 0;
    char *      name            = NULL;
    char *      wrapName        = NULL;
    secuPWData  pwdata          = { PW_NONE, 0 };
    PRBool 	readOnly	= PR_FALSE;
    SECItem	key;
    SECItem	keyID;
    SECItem	wrapKeyID;
    int commandsEntered = 0;
    int commandToRun = 0;
    char *progName;
    int i;
    SECStatus rv = SECFailure;

    secuCommand symKeyUtil;
    symKeyUtil.numCommands=sizeof(symKeyUtil_commands)/sizeof(secuCommandFlag);
    symKeyUtil.numOptions=sizeof(symKeyUtil_options)/sizeof(secuCommandFlag);
    symKeyUtil.commands = symKeyUtil_commands;
    symKeyUtil.options = symKeyUtil_options;

    key.data = NULL; key.len = 0;
    keyID.data = NULL; keyID.len = 0;
    wrapKeyID.data = NULL; wrapKeyID.len = 0;

    progName = strrchr(argv[0], '/');
    progName = progName ? progName+1 : argv[0];

    rv = SECU_ParseCommandLine(argc, argv, progName, &symKeyUtil);

    if (rv != SECSuccess)
	Usage(progName);

    rv = SECFailure;

    /* -H print help */
    if (symKeyUtil.commands[cmd_PrintHelp].activated)
	LongUsage(progName);

    /* -f password file, -p password */
    if (symKeyUtil.options[opt_PasswordFile].arg) {
	pwdata.source = PW_FROMFILE;
	pwdata.data = symKeyUtil.options[opt_PasswordFile].arg;
    } else if (symKeyUtil.options[opt_Password].arg) {
	pwdata.source = PW_PLAINTEXT;
	pwdata.data = symKeyUtil.options[opt_Password].arg;
    } 

    /* -d directory */
    if (symKeyUtil.options[opt_CertDir].activated)
	SECU_ConfigDirectory(symKeyUtil.options[opt_CertDir].arg);

    /* -s key size */
    if (symKeyUtil.options[opt_KeySize].activated) {
	keySize = PORT_Atoi(symKeyUtil.options[opt_KeySize].arg);
    }

    /*  -h specify token name  */
    if (symKeyUtil.options[opt_TokenName].activated) {
	if (PL_strcmp(symKeyUtil.options[opt_TokenName].arg, "all") == 0)
	    slotname = NULL;
	else
	    slotname = PL_strdup(symKeyUtil.options[opt_TokenName].arg);
    }

    /* -t key type */
    if  (symKeyUtil.options[opt_KeyType].activated) {
	keyType = GetKeyMechFromString(symKeyUtil.options[opt_KeyType].arg);
	if (keyType == (CK_MECHANISM_TYPE)-1) {
	    PR_fprintf(PR_STDERR, 
	          "%s unknown key type (%s).\n",
	           progName, symKeyUtil.options[opt_KeyType].arg);
	    return 255;
	}
    }

    /* -k for import and unwrap, it specifies an input file to read from,
     * for export and wrap it specifies an output file to write to */
    if (symKeyUtil.options[opt_KeyFile].activated) {
        if (symKeyUtil.commands[cmd_ImportKey].activated ||
		symKeyUtil.commands[cmd_UnwrapKey].activated ) {
	    int ret = ReadBuf(symKeyUtil.options[opt_KeyFile].arg, &key);
	    if (ret < 0) {
	        PR_fprintf(PR_STDERR, 
	          "%s Couldn't read key file (%s).\n",
	           progName, symKeyUtil.options[opt_KeyFile].arg);
		return 255;
	    }
	}
    }

    /* -i specify the key ID */
    if (symKeyUtil.options[opt_KeyID].activated) {
	int ret = HexToBuf(symKeyUtil.options[opt_KeyID].arg, &keyID);
	if (ret < 0) {
	    PR_fprintf(PR_STDERR, 
	          "%s invalid key ID (%s).\n",
	           progName, symKeyUtil.options[opt_KeyID].arg);
	    return 255;
	}
    }

    /* -i & -j are mutually exclusive */
    if ((symKeyUtil.options[opt_KeyID].activated) &&
		 (symKeyUtil.options[opt_KeyIDFile].activated)) {
	PR_fprintf(PR_STDERR, 
	          "%s -i and -j options are mutually exclusive.\n", progName);
	return 255;
    }

    /* -x specify the Wrap key ID */
    if (symKeyUtil.options[opt_WrapKeyID].activated) {
	int ret = HexToBuf(symKeyUtil.options[opt_WrapKeyID].arg, &wrapKeyID);
	if (ret < 0) {
	    PR_fprintf(PR_STDERR, 
	          "%s invalid key ID (%s).\n",
	           progName, symKeyUtil.options[opt_WrapKeyID].arg);
	    return 255;
	}
    }

    /* -x & -y are mutually exclusive */
    if ((symKeyUtil.options[opt_KeyID].activated) &&
		 (symKeyUtil.options[opt_KeyIDFile].activated)) {
	PR_fprintf(PR_STDERR, 
	          "%s -i and -j options are mutually exclusive.\n", progName);
	return 255;
    }
	

    /* -y specify the key ID */
    if (symKeyUtil.options[opt_WrapKeyIDFile].activated) {
	int ret = ReadBuf(symKeyUtil.options[opt_WrapKeyIDFile].arg,
								 &wrapKeyID);
	if (ret < 0) {
	    PR_fprintf(PR_STDERR, 
	          "%s Couldn't read key ID file (%s).\n",
	           progName, symKeyUtil.options[opt_WrapKeyIDFile].arg);
	    return 255;
	}
    }

    /*  -P certdb name prefix */
    if (symKeyUtil.options[opt_dbPrefix].activated)
	certPrefix = strdup(symKeyUtil.options[opt_dbPrefix].arg);

    /*  Check number of commands entered.  */
    commandsEntered = 0;
    for (i=0; i< symKeyUtil.numCommands; i++) {
	if (symKeyUtil.commands[i].activated) {
	    commandToRun = symKeyUtil.commands[i].flag;
	    commandsEntered++;
	}
	if (commandsEntered > 1)
	    break;
    }
    if (commandsEntered > 1) {
	PR_fprintf(PR_STDERR, "%s: only one command at a time!\n", progName);
	PR_fprintf(PR_STDERR, "You entered: ");
	for (i=0; i< symKeyUtil.numCommands; i++) {
	    if (symKeyUtil.commands[i].activated)
		PR_fprintf(PR_STDERR, " -%c", symKeyUtil.commands[i].flag);
	}
	PR_fprintf(PR_STDERR, "\n");
	return 255;
    }
    if (commandsEntered == 0) {
	PR_fprintf(PR_STDERR, "%s: you must enter a command!\n", progName);
	Usage(progName);
    }

    if (symKeyUtil.commands[cmd_ListKeys].activated ||
         symKeyUtil.commands[cmd_PrintHelp].activated ||
         symKeyUtil.commands[cmd_ExportKey].activated ||
         symKeyUtil.commands[cmd_WrapKey].activated) {
	readOnly = !symKeyUtil.options[opt_RW].activated;
    }

    if ((symKeyUtil.commands[cmd_ImportKey].activated ||
         symKeyUtil.commands[cmd_ExportKey].activated ||
         symKeyUtil.commands[cmd_WrapKey].activated ||
         symKeyUtil.commands[cmd_UnwrapKey].activated ) &&
        !symKeyUtil.options[opt_KeyFile].activated) {
	PR_fprintf(PR_STDERR, 
	          "%s -%c: keyfile is required for this command (-k).\n",
	           progName, commandToRun);
	return 255;
    }

    /*  -E, -D, -W, and all require -n, -i, or -j to identify the key  */
    if ((symKeyUtil.commands[cmd_ExportKey].activated ||
         symKeyUtil.commands[cmd_DeleteKey].activated ||
         symKeyUtil.commands[cmd_WrapKey].activated) &&
        !(symKeyUtil.options[opt_Nickname].activated ||
	  symKeyUtil.options[opt_KeyID].activated ||
	  symKeyUtil.options[opt_KeyIDFile].activated)) {
	PR_fprintf(PR_STDERR, 
	  "%s -%c: nickname or id is required for this command (-n, -i, -j).\n",
	           progName, commandToRun);
	return 255;
    }

    /*  -W, -U, and all  -w, -x, or -y to identify the wrapping key  */
    if (( symKeyUtil.commands[cmd_WrapKey].activated ||
         symKeyUtil.commands[cmd_UnwrapKey].activated) &&
        !(symKeyUtil.options[opt_WrapKeyName].activated ||
	  symKeyUtil.options[opt_WrapKeyID].activated ||
	  symKeyUtil.options[opt_WrapKeyIDFile].activated)) {
	PR_fprintf(PR_STDERR, 
	  "%s -%c: wrap key is required for this command (-w, -x, or -y).\n",
	           progName, commandToRun);
	return 255;
    }

    /* -M needs the target slot  (-g) */
    if (symKeyUtil.commands[cmd_MoveKey].activated  &&
			!symKeyUtil.options[opt_TargetToken].activated) {
	PR_fprintf(PR_STDERR, 
	          "%s -%c: target token is required for this command (-g).\n",
	           progName, commandToRun);
	return 255;
    }

    /*  Using slotname == NULL for listing keys and certs on all slots, 
     *  but only that. */
    if (!(symKeyUtil.commands[cmd_ListKeys].activated) && slotname == NULL) {
	PR_fprintf(PR_STDERR,
	           "%s -%c: cannot use \"-h all\" for this command.\n",
	           progName, commandToRun);
	return 255;
    }

    name = SECU_GetOptionArg(&symKeyUtil, opt_Nickname);
    wrapName = SECU_GetOptionArg(&symKeyUtil, opt_WrapKeyName);

    PK11_SetPasswordFunc(SECU_GetModulePassword);

    /*  Initialize NSPR and NSS.  */
    PR_Init(PR_SYSTEM_THREAD, PR_PRIORITY_NORMAL, 1);
    rv = NSS_Initialize(SECU_ConfigDirectory(NULL), certPrefix, certPrefix,
                        "secmod.db", readOnly ? NSS_INIT_READONLY: 0);
    if (rv != SECSuccess) {
	SECU_PrintPRandOSError(progName);
	goto shutdown;
    }
    rv = SECFailure;

    if (PL_strcmp(slotname, "internal") == 0)
	slot = PK11_GetInternalKeySlot();
    else if (slotname != NULL)
	slot = PK11_FindSlotByName(slotname);

    /* generating a new key */
    if (symKeyUtil.commands[cmd_CreateNewKey].activated)  {
	PK11SymKey *symKey;

	symKey = PK11_TokenKeyGen(slot, keyType, NULL, keySize, 
							NULL, PR_TRUE, &pwdata);
	if (!symKey) {
	    PR_fprintf(PR_STDERR, "%s: Token Key Gen Failed\n", progName);
	    goto shutdown;
	}
	if (symKeyUtil.options[opt_Nickname].activated) {
	    rv = PK11_SetSymKeyNickname(symKey, name);
	    if (rv != SECSuccess) {
		PK11_DeleteTokenSymKey(symKey);
		PK11_FreeSymKey(symKey);
	        PR_fprintf(PR_STDERR, "%s: Couldn't set nickname on key\n",
								 progName);
		goto shutdown;
	    }
	}
	rv = SECSuccess;
	PrintKey(symKey);
	PK11_FreeSymKey(symKey);
    }
    if (symKeyUtil.commands[cmd_DeleteKey].activated) {
	PK11SymKey *symKey = FindKey(slot,name,&keyID,&pwdata);

	if (!symKey) {
	    char *keyName = keyID.data ? BufToHex(&keyID) : PORT_Strdup(name);
	    PR_fprintf(PR_STDERR, "%s: Couldn't find key %s on %s\n",
			progName, keyName, PK11_GetTokenName(slot));
	    PORT_Free(keyName);
	    goto shutdown;
	}

	rv = PK11_DeleteTokenSymKey(symKey);
	FreeKeyList(symKey);
	if (rv != SECSuccess) {
	    PR_fprintf(PR_STDERR, "%s: Couldn't Delete Key \n", progName);
	    goto shutdown;
	}
    }
    if (symKeyUtil.commands[cmd_UnwrapKey].activated) {
	PK11SymKey *wrapKey = FindKey(slot,wrapName,&wrapKeyID,&pwdata);
	PK11SymKey *symKey;
 	CK_MECHANISM_TYPE mechanism;

	if (!wrapKey) {
	    char *keyName = wrapKeyID.data ? BufToHex(&wrapKeyID) 
							: PORT_Strdup(wrapName);
	    PR_fprintf(PR_STDERR, "%s: Couldn't find key %s on %s\n",
			progName, keyName, PK11_GetTokenName(slot));
	    PORT_Free(keyName);
	    goto shutdown;
	}
	mechanism = GetWrapMechanism(wrapKey);
	if (mechanism == CKM_INVALID_MECHANISM) {
	    char *keyName = wrapKeyID.data ? BufToHex(&wrapKeyID) 
							: PORT_Strdup(wrapName);
	    PR_fprintf(PR_STDERR, "%s: %s on %s is an invalid wrapping key\n",
			progName, keyName, PK11_GetTokenName(slot));
	    PORT_Free(keyName);
	    PK11_FreeSymKey(wrapKey);
	    goto shutdown;
	}

	symKey = PK11_UnwrapSymKeyWithFlagsPerm(wrapKey, mechanism, NULL,
			&key, keyType, CKA_ENCRYPT, keySize, 0, PR_TRUE);
	PK11_FreeSymKey(wrapKey);
	if (!symKey) {
	    PR_fprintf(PR_STDERR, "%s: Unwrap Key Failed\n", progName);
	    goto shutdown;
	}

	if (symKeyUtil.options[opt_Nickname].activated) {
	    rv = PK11_SetSymKeyNickname(symKey, name);
	    if (rv != SECSuccess) {
	        PR_fprintf(PR_STDERR, "%s: Couldn't set name on key\n", 
								progName);
		PK11_DeleteTokenSymKey(symKey);
		PK11_FreeSymKey(symKey);
		goto shutdown;
	    }
	}
	rv = SECSuccess;
	PrintKey(symKey);
	PK11_FreeSymKey(symKey);
    }

#define MAX_KEY_SIZE 4098
    if (symKeyUtil.commands[cmd_WrapKey].activated) {
	PK11SymKey *symKey = FindKey(slot, name, &keyID, &pwdata);
	PK11SymKey *wrapKey;
	CK_MECHANISM_TYPE mechanism;
	SECItem data;
	unsigned char buf[MAX_KEY_SIZE];
	int ret;

	if (!symKey) {
	    char *keyName = keyID.data ? BufToHex(&keyID) : PORT_Strdup(name);
	    PR_fprintf(PR_STDERR, "%s: Couldn't find key %s on %s\n",
			progName, keyName, PK11_GetTokenName(slot));
	    PORT_Free(keyName);
	    goto shutdown;
	}

	wrapKey = FindKey(slot, wrapName, &wrapKeyID, &pwdata);
	if (!wrapKey) {
	    char *keyName = wrapKeyID.data ? BufToHex(&wrapKeyID) 
							: PORT_Strdup(wrapName);
	    PR_fprintf(PR_STDERR, "%s: Couldn't find key %s on %s\n",
			progName, keyName, PK11_GetTokenName(slot));
	    PORT_Free(keyName);
	    PK11_FreeSymKey(symKey);
	    goto shutdown;
	}

	mechanism = GetWrapMechanism(wrapKey);
	if (mechanism == CKM_INVALID_MECHANISM) {
	    char *keyName = wrapKeyID.data ? BufToHex(&wrapKeyID) 
							: PORT_Strdup(wrapName);
	    PR_fprintf(PR_STDERR, "%s: %s on %s is an invalid wrapping key\n",
			progName, keyName, PK11_GetTokenName(slot));
	    PORT_Free(keyName);
	    PK11_FreeSymKey(symKey);
	    PK11_FreeSymKey(wrapKey);
	    goto shutdown;
	}

	data.data = buf;
	data.len = sizeof(buf);
	rv = PK11_WrapSymKey(mechanism, NULL,  wrapKey, symKey, &data);
	PK11_FreeSymKey(symKey);
	PK11_FreeSymKey(wrapKey);
	if (rv != SECSuccess) {
	    PR_fprintf(PR_STDERR, "%s: Couldn't wrap key\n",progName);
	    goto shutdown;
	}

	/* WriteBuf outputs it's own error using SECU_PrintError */
	ret = WriteBuf(symKeyUtil.options[opt_KeyFile].arg, &data);
	if (ret < 0) {
	    goto shutdown;
	}
    }

    if (symKeyUtil.commands[cmd_ImportKey].activated) {
	PK11SymKey *symKey = PK11_ImportSymKey(slot, keyType,
			 PK11_OriginUnwrap, CKA_ENCRYPT, &key,&pwdata);
	if (!symKey) {
	    PR_fprintf(PR_STDERR, "%s: Import Key Failed\n", progName);
	    goto shutdown;
	}
	if (symKeyUtil.options[opt_Nickname].activated) {
	    rv = PK11_SetSymKeyNickname(symKey, name);
	    if (rv != SECSuccess) {
	        PR_fprintf(PR_STDERR, "%s: Couldn't set name on key\n", 
								progName);
		PK11_DeleteTokenSymKey(symKey);
		PK11_FreeSymKey(symKey);
		goto shutdown;
	    }
	}
	rv = SECSuccess;
	PrintKey(symKey);
	PK11_FreeSymKey(symKey);
    }

    /*  List certs (-L)  */
    if (symKeyUtil.commands[cmd_ListKeys].activated) {
	int printLabel = 1;
	if (slot) {
	    rv = ListKeys(slot,&printLabel,&pwdata);
	} else {
	    /* loop over all the slots */
	    PK11SlotList *slotList = PK11_GetAllTokens(CKM_INVALID_MECHANISM,
					PR_FALSE, PR_FALSE, &pwdata);
	    if (slotList == NULL) {
	        PR_fprintf(PR_STDERR, "%s: No tokens found\n",progName);
	    } else {
                PK11SlotListElement *se;
                for (se = PK11_GetFirstSafe(slotList); se; 
                                    se=PK11_GetNextSafe(slotList,se, PR_FALSE)) {
                    rv = ListKeys(se->slot,&printLabel,&pwdata);
                    if (rv !=SECSuccess) {
                        break;
                    }
                }
                if (se) {
                    SECStatus rv2 = PK11_FreeSlotListElement(slotList, se);
                    PORT_Assert(SECSuccess == rv2);
                }
                PK11_FreeSlotList(slotList);
            }
	}
    }

    /*  Move key (-M)  */
    if (symKeyUtil.commands[cmd_MoveKey].activated) {
	PK11SlotInfo *target;
	char *targetName = symKeyUtil.options[opt_TargetToken].arg;
	PK11SymKey *newKey;
	PK11SymKey *symKey = FindKey(slot,name,&keyID,&pwdata);
	char *keyName = PK11_GetSymKeyNickname(symKey);

	if (!symKey) {
	    char *keyName = keyID.data ? BufToHex(&keyID) : PORT_Strdup(name);
	    PR_fprintf(PR_STDERR, "%s: Couldn't find key %s on %s\n",
			progName, keyName, PK11_GetTokenName(slot));
	    PORT_Free(keyName);
	    goto shutdown;
	}
	target = PK11_FindSlotByName(targetName);
	if (!target) {
	    PR_fprintf(PR_STDERR, "%s: Couldn't find slot %s\n",
			progName, targetName);
	    goto shutdown;
	}
	rv = PK11_Authenticate(target, PR_FALSE, &pwdata);
	if (rv != SECSuccess) {
	    PR_fprintf(PR_STDERR, "%s: Failed to log into %s\n",
			progName, targetName);
	    goto shutdown;
	}
	rv = SECFailure;
	newKey = PK11_MoveSymKey(target, CKA_ENCRYPT, 0, PR_TRUE, symKey);
	if (!newKey) {
	    PR_fprintf(PR_STDERR, "%s: Couldn't move the key \n",progName);
	    goto shutdown;
	}
	if (keyName) {
	    rv = PK11_SetSymKeyNickname(newKey, keyName);
	    if (rv != SECSuccess) {
		PK11_DeleteTokenSymKey(newKey);
		PK11_FreeSymKey(newKey);
	        PR_fprintf(PR_STDERR, "%s: Couldn't set nickname on key\n",
								 progName);
		goto shutdown;
	    }
	}
	PK11_FreeSymKey(newKey);
	rv = SECSuccess;
    }

shutdown:
    if (rv != SECSuccess) {
	PR_fprintf(PR_STDERR, "%s: %s\n", progName,
					SECU_Strerror(PORT_GetError()));
    }

    if (key.data) {
	PORT_Free(key.data);
    }

    if (keyID.data) {
	PORT_Free(keyID.data);
    }

    if (slot) {
	PK11_FreeSlot(slot);
    }

    if (NSS_Shutdown() != SECSuccess) {
        exit(1);
    }

    if (rv == SECSuccess) {
	return 0;
    } else {
	return 255;
    }
}