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268 lines
8.9 KiB
C
268 lines
8.9 KiB
C
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1994-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*/
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#include "pqgutil.h"
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#include "prerror.h"
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#include "secitem.h"
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#define PQG_DEFAULT_CHUNKSIZE 2048 /* bytes */
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/**************************************************************************
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* Return a pointer to a new PQGParams struct that is a duplicate of *
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* the one passed as an argument. *
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* Return NULL on failure, or if NULL was passed in. *
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* *
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**************************************************************************/
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PQGParams *
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PQG_DupParams(const PQGParams *src)
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{
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PRArenaPool *arena;
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PQGParams *dest;
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SECStatus status;
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if (src == NULL) {
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PORT_SetError(PR_INVALID_ARGUMENT_ERROR);
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return NULL;
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}
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arena = PORT_NewArena(PQG_DEFAULT_CHUNKSIZE);
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if (arena == NULL)
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goto loser;
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dest = (PQGParams*)PORT_ArenaZAlloc(arena, sizeof(PQGParams));
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if (dest == NULL)
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goto loser;
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dest->arena = arena;
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status = SECITEM_CopyItem(arena, &dest->prime, &src->prime);
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if (status != SECSuccess)
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goto loser;
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status = SECITEM_CopyItem(arena, &dest->subPrime, &src->subPrime);
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if (status != SECSuccess)
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goto loser;
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status = SECITEM_CopyItem(arena, &dest->base, &src->base);
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if (status != SECSuccess)
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goto loser;
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return dest;
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loser:
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if (arena != NULL)
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PORT_FreeArena(arena, PR_FALSE);
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return NULL;
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}
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/**************************************************************************
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* Return a pointer to a new PQGParams struct that is constructed from *
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* copies of the arguments passed in. *
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* Return NULL on failure. *
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**************************************************************************/
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PQGParams *
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PQG_NewParams(const SECItem * prime, const SECItem * subPrime,
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const SECItem * base)
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{
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PQGParams * dest;
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PQGParams src;
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src.arena = NULL;
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src.prime = *prime;
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src.subPrime = *subPrime;
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src.base = *base;
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dest = PQG_DupParams(&src);
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return dest;
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}
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/**************************************************************************
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* Fills in caller's "prime" SECItem with the prime value in params.
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* Contents can be freed by calling SECITEM_FreeItem(prime, PR_FALSE);
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**************************************************************************/
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SECStatus
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PQG_GetPrimeFromParams(const PQGParams *params, SECItem * prime)
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{
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return SECITEM_CopyItem(NULL, prime, ¶ms->prime);
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}
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/**************************************************************************
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* Fills in caller's "subPrime" SECItem with the prime value in params.
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* Contents can be freed by calling SECITEM_FreeItem(subPrime, PR_FALSE);
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**************************************************************************/
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SECStatus
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PQG_GetSubPrimeFromParams(const PQGParams *params, SECItem * subPrime)
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{
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return SECITEM_CopyItem(NULL, subPrime, ¶ms->subPrime);
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}
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/**************************************************************************
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* Fills in caller's "base" SECItem with the base value in params.
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* Contents can be freed by calling SECITEM_FreeItem(base, PR_FALSE);
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**************************************************************************/
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SECStatus
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PQG_GetBaseFromParams(const PQGParams *params, SECItem * base)
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{
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return SECITEM_CopyItem(NULL, base, ¶ms->base);
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}
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/**************************************************************************
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* Free the PQGParams struct and the things it points to. *
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**************************************************************************/
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void
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PQG_DestroyParams(PQGParams *params)
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{
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if (params == NULL)
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return;
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if (params->arena != NULL) {
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PORT_FreeArena(params->arena, PR_FALSE); /* don't zero it */
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return;
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}
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SECITEM_FreeItem(¶ms->prime, PR_FALSE); /* don't free prime */
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SECITEM_FreeItem(¶ms->subPrime, PR_FALSE); /* don't free subPrime */
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SECITEM_FreeItem(¶ms->base, PR_FALSE); /* don't free base */
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PORT_Free(params);
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}
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/**************************************************************************
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* Return a pointer to a new PQGVerify struct that is a duplicate of *
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* the one passed as an argument. *
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* Return NULL on failure, or if NULL was passed in. *
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**************************************************************************/
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PQGVerify *
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PQG_DupVerify(const PQGVerify *src)
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{
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PRArenaPool *arena;
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PQGVerify * dest;
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SECStatus status;
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if (src == NULL) {
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PORT_SetError(PR_INVALID_ARGUMENT_ERROR);
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return NULL;
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}
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arena = PORT_NewArena(PQG_DEFAULT_CHUNKSIZE);
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if (arena == NULL)
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goto loser;
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dest = (PQGVerify*)PORT_ArenaZAlloc(arena, sizeof(PQGVerify));
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if (dest == NULL)
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goto loser;
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dest->arena = arena;
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dest->counter = src->counter;
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status = SECITEM_CopyItem(arena, &dest->seed, &src->seed);
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if (status != SECSuccess)
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goto loser;
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status = SECITEM_CopyItem(arena, &dest->h, &src->h);
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if (status != SECSuccess)
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goto loser;
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return dest;
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loser:
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if (arena != NULL)
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PORT_FreeArena(arena, PR_FALSE);
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return NULL;
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}
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/**************************************************************************
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* Return a pointer to a new PQGVerify struct that is constructed from *
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* copies of the arguments passed in. *
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* Return NULL on failure. *
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**************************************************************************/
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PQGVerify *
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PQG_NewVerify(unsigned int counter, const SECItem * seed, const SECItem * h)
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{
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PQGVerify * dest;
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PQGVerify src;
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src.arena = NULL;
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src.counter = counter;
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src.seed = *seed;
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src.h = *h;
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dest = PQG_DupVerify(&src);
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return dest;
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}
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/**************************************************************************
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* Returns the "counter" value from the PQGVerify.
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**************************************************************************/
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unsigned int
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PQG_GetCounterFromVerify(const PQGVerify *verify)
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{
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return verify->counter;
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}
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/**************************************************************************
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* Fills in caller's "seed" SECItem with the seed value in verify.
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* Contents can be freed by calling SECITEM_FreeItem(seed, PR_FALSE);
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**************************************************************************/
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SECStatus
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PQG_GetSeedFromVerify(const PQGVerify *verify, SECItem * seed)
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{
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return SECITEM_CopyItem(NULL, seed, &verify->seed);
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}
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/**************************************************************************
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* Fills in caller's "h" SECItem with the h value in verify.
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* Contents can be freed by calling SECITEM_FreeItem(h, PR_FALSE);
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**************************************************************************/
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SECStatus
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PQG_GetHFromVerify(const PQGVerify *verify, SECItem * h)
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{
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return SECITEM_CopyItem(NULL, h, &verify->h);
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}
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/**************************************************************************
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* Free the PQGVerify struct and the things it points to. *
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**************************************************************************/
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void
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PQG_DestroyVerify(PQGVerify *vfy)
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{
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if (vfy == NULL)
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return;
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if (vfy->arena != NULL) {
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PORT_FreeArena(vfy->arena, PR_FALSE); /* don't zero it */
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return;
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}
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SECITEM_FreeItem(&vfy->seed, PR_FALSE); /* don't free seed */
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SECITEM_FreeItem(&vfy->h, PR_FALSE); /* don't free h */
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PORT_Free(vfy);
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}
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