diff options
Diffstat (limited to 'security/nss/lib/util/pqgutil.c')
| -rw-r--r-- | security/nss/lib/util/pqgutil.c | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/security/nss/lib/util/pqgutil.c b/security/nss/lib/util/pqgutil.c new file mode 100644 index 000000000..24e1f62fb --- /dev/null +++ b/security/nss/lib/util/pqgutil.c @@ -0,0 +1,267 @@ +/* + * 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 Netscape are + * Copyright (C) 1994-2000 Netscape Communications Corporation. All + * Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the + * terms of the GNU General Public License Version 2 or later (the + * "GPL"), in which case the provisions of the GPL are applicable + * instead of those above. If you wish to allow use of your + * version of this file only under the terms of the GPL and not to + * allow others to use your version of this file under the MPL, + * indicate your decision by deleting the provisions above and + * replace them with the notice and other provisions required by + * the GPL. If you do not delete the provisions above, a recipient + * may use your version of this file under either the MPL or the + * GPL. + */ +#include "pqgutil.h" +#include "prerror.h" +#include "secitem.h" + +#define PQG_DEFAULT_CHUNKSIZE 2048 /* bytes */ + +/************************************************************************** + * Return a pointer to a new PQGParams struct that is a duplicate of * + * the one passed as an argument. * + * Return NULL on failure, or if NULL was passed in. * + * * + **************************************************************************/ + +PQGParams * +PQG_DupParams(const PQGParams *src) +{ + PRArenaPool *arena; + PQGParams *dest; + SECStatus status; + + if (src == NULL) { + PORT_SetError(PR_INVALID_ARGUMENT_ERROR); + return NULL; + } + + arena = PORT_NewArena(PQG_DEFAULT_CHUNKSIZE); + if (arena == NULL) + goto loser; + + dest = (PQGParams*)PORT_ArenaZAlloc(arena, sizeof(PQGParams)); + if (dest == NULL) + goto loser; + + dest->arena = arena; + + status = SECITEM_CopyItem(arena, &dest->prime, &src->prime); + if (status != SECSuccess) + goto loser; + + status = SECITEM_CopyItem(arena, &dest->subPrime, &src->subPrime); + if (status != SECSuccess) + goto loser; + + status = SECITEM_CopyItem(arena, &dest->base, &src->base); + if (status != SECSuccess) + goto loser; + + return dest; + +loser: + if (arena != NULL) + PORT_FreeArena(arena, PR_FALSE); + return NULL; +} + +/************************************************************************** + * Return a pointer to a new PQGParams struct that is constructed from * + * copies of the arguments passed in. * + * Return NULL on failure. * + **************************************************************************/ + +PQGParams * +PQG_NewParams(const SECItem * prime, const SECItem * subPrime, + const SECItem * base) +{ + PQGParams * dest; + PQGParams src; + + src.arena = NULL; + src.prime = *prime; + src.subPrime = *subPrime; + src.base = *base; + dest = PQG_DupParams(&src); + return dest; +} + +/************************************************************************** + * Fills in caller's "prime" SECItem with the prime value in params. + * Contents can be freed by calling SECITEM_FreeItem(prime, PR_FALSE); + **************************************************************************/ +SECStatus +PQG_GetPrimeFromParams(const PQGParams *params, SECItem * prime) +{ + return SECITEM_CopyItem(NULL, prime, ¶ms->prime); +} + +/************************************************************************** + * Fills in caller's "subPrime" SECItem with the prime value in params. + * Contents can be freed by calling SECITEM_FreeItem(subPrime, PR_FALSE); + **************************************************************************/ +SECStatus +PQG_GetSubPrimeFromParams(const PQGParams *params, SECItem * subPrime) +{ + return SECITEM_CopyItem(NULL, subPrime, ¶ms->subPrime); +} + +/************************************************************************** + * Fills in caller's "base" SECItem with the base value in params. + * Contents can be freed by calling SECITEM_FreeItem(base, PR_FALSE); + **************************************************************************/ +SECStatus +PQG_GetBaseFromParams(const PQGParams *params, SECItem * base) +{ + return SECITEM_CopyItem(NULL, base, ¶ms->base); +} + +/************************************************************************** + * Free the PQGParams struct and the things it points to. * + **************************************************************************/ +void +PQG_DestroyParams(PQGParams *params) +{ + if (params == NULL) + return; + if (params->arena != NULL) { + PORT_FreeArena(params->arena, PR_FALSE); /* don't zero it */ + } else { + SECITEM_FreeItem(¶ms->prime, PR_FALSE); /* don't free prime */ + SECITEM_FreeItem(¶ms->subPrime, PR_FALSE); /* don't free subPrime */ + SECITEM_FreeItem(¶ms->base, PR_FALSE); /* don't free base */ + PORT_Free(params); + } +} + +/************************************************************************** + * Return a pointer to a new PQGVerify struct that is a duplicate of * + * the one passed as an argument. * + * Return NULL on failure, or if NULL was passed in. * + **************************************************************************/ + +PQGVerify * +PQG_DupVerify(const PQGVerify *src) +{ + PRArenaPool *arena; + PQGVerify * dest; + SECStatus status; + + if (src == NULL) { + PORT_SetError(PR_INVALID_ARGUMENT_ERROR); + return NULL; + } + + arena = PORT_NewArena(PQG_DEFAULT_CHUNKSIZE); + if (arena == NULL) + goto loser; + + dest = (PQGVerify*)PORT_ArenaZAlloc(arena, sizeof(PQGVerify)); + if (dest == NULL) + goto loser; + + dest->arena = arena; + dest->counter = src->counter; + + status = SECITEM_CopyItem(arena, &dest->seed, &src->seed); + if (status != SECSuccess) + goto loser; + + status = SECITEM_CopyItem(arena, &dest->h, &src->h); + if (status != SECSuccess) + goto loser; + + return dest; + +loser: + if (arena != NULL) + PORT_FreeArena(arena, PR_FALSE); + return NULL; +} + +/************************************************************************** + * Return a pointer to a new PQGVerify struct that is constructed from * + * copies of the arguments passed in. * + * Return NULL on failure. * + **************************************************************************/ + +PQGVerify * +PQG_NewVerify(unsigned int counter, const SECItem * seed, const SECItem * h) +{ + PQGVerify * dest; + PQGVerify src; + + src.arena = NULL; + src.counter = counter; + src.seed = *seed; + src.h = *h; + dest = PQG_DupVerify(&src); + return dest; +} + +/************************************************************************** + * Returns the "counter" value from the PQGVerify. + **************************************************************************/ +unsigned int +PQG_GetCounterFromVerify(const PQGVerify *verify) +{ + return verify->counter; +} + +/************************************************************************** + * Fills in caller's "seed" SECItem with the seed value in verify. + * Contents can be freed by calling SECITEM_FreeItem(seed, PR_FALSE); + **************************************************************************/ +SECStatus +PQG_GetSeedFromVerify(const PQGVerify *verify, SECItem * seed) +{ + return SECITEM_CopyItem(NULL, seed, &verify->seed); +} + +/************************************************************************** + * Fills in caller's "h" SECItem with the h value in verify. + * Contents can be freed by calling SECITEM_FreeItem(h, PR_FALSE); + **************************************************************************/ +SECStatus +PQG_GetHFromVerify(const PQGVerify *verify, SECItem * h) +{ + return SECITEM_CopyItem(NULL, h, &verify->h); +} + +/************************************************************************** + * Free the PQGVerify struct and the things it points to. * + **************************************************************************/ + +void +PQG_DestroyVerify(PQGVerify *vfy) +{ + if (vfy == NULL) + return; + if (vfy->arena != NULL) { + PORT_FreeArena(vfy->arena, PR_FALSE); /* don't zero it */ + } else { + SECITEM_FreeItem(&vfy->seed, PR_FALSE); /* don't free seed */ + SECITEM_FreeItem(&vfy->h, PR_FALSE); /* don't free h */ + PORT_Free(vfy); + } +} |