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RetroZilla/security/nss/lib/cryptohi/seckey.c
roytam1 30d33aa8e8 cherry-picked mozilla NSS upstream changes (to rev f7a4c771997e, which is on par with 3.16.1 but without windows rand() changes): 
9934c8faef29, 3c3b381c4865, 5a67f6beee9a, 1b1eb6d77728, a8b668fd72f7, bug962760, bug743700, bug857304, bug972653, bug972450, bug971358, bug903885, bug977073, bug976111, bug949939, bug947653, bug947572, bug903885, bug979106, bug966596, bug979004, bug979752, bug980848, bug938369, bug981170, bug668130, bug974693, bug975056, bug979132, bug370717, bug979070, bug985070, bug900067, bug977673, bug519255, bug989558, bug557299, bug987263, bug369802, a751a5146718, bug992343, bug952572, bug979703, bug994883, bug994869, bug993489, bug984608, bug977869, bug667371, bug672828, bug793347, bug977869
2018-07-14 21:22:29 +08:00

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "cryptohi.h"
#include "keyhi.h"
#include "secoid.h"
#include "secitem.h"
#include "secder.h"
#include "base64.h"
#include "secasn1.h"
#include "cert.h"
#include "pk11func.h"
#include "secerr.h"
#include "secdig.h"
#include "prtime.h"
#include "keyi.h"
SEC_ASN1_MKSUB(SECOID_AlgorithmIDTemplate)
SEC_ASN1_MKSUB(SEC_IntegerTemplate)
const SEC_ASN1Template CERT_SubjectPublicKeyInfoTemplate[] = {
{ SEC_ASN1_SEQUENCE,
0, NULL, sizeof(CERTSubjectPublicKeyInfo) },
{ SEC_ASN1_INLINE | SEC_ASN1_XTRN,
offsetof(CERTSubjectPublicKeyInfo,algorithm),
SEC_ASN1_SUB(SECOID_AlgorithmIDTemplate) },
{ SEC_ASN1_BIT_STRING,
offsetof(CERTSubjectPublicKeyInfo,subjectPublicKey), },
{ 0, }
};
const SEC_ASN1Template CERT_PublicKeyAndChallengeTemplate[] =
{
{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(CERTPublicKeyAndChallenge) },
{ SEC_ASN1_ANY, offsetof(CERTPublicKeyAndChallenge,spki) },
{ SEC_ASN1_IA5_STRING, offsetof(CERTPublicKeyAndChallenge,challenge) },
{ 0 }
};
const SEC_ASN1Template SECKEY_RSAPublicKeyTemplate[] = {
{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(SECKEYPublicKey) },
{ SEC_ASN1_INTEGER, offsetof(SECKEYPublicKey,u.rsa.modulus), },
{ SEC_ASN1_INTEGER, offsetof(SECKEYPublicKey,u.rsa.publicExponent), },
{ 0, }
};
static const SEC_ASN1Template seckey_PointerToAlgorithmIDTemplate[] = {
{ SEC_ASN1_POINTER | SEC_ASN1_XTRN, 0,
SEC_ASN1_SUB(SECOID_AlgorithmIDTemplate) }
};
/* Parameters for SEC_OID_PKCS1_RSA_PSS_SIGNATURE */
const SEC_ASN1Template SECKEY_RSAPSSParamsTemplate[] =
{
{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(SECKEYRSAPSSParams) },
{ SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_EXPLICIT |
SEC_ASN1_CONTEXT_SPECIFIC | 0,
offsetof(SECKEYRSAPSSParams, hashAlg),
seckey_PointerToAlgorithmIDTemplate },
{ SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_EXPLICIT |
SEC_ASN1_CONTEXT_SPECIFIC | 1,
offsetof(SECKEYRSAPSSParams, maskAlg),
seckey_PointerToAlgorithmIDTemplate },
{ SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_EXPLICIT |
SEC_ASN1_XTRN | SEC_ASN1_CONTEXT_SPECIFIC | 2,
offsetof(SECKEYRSAPSSParams, saltLength),
SEC_ASN1_SUB(SEC_IntegerTemplate) },
{ SEC_ASN1_OPTIONAL | SEC_ASN1_CONSTRUCTED | SEC_ASN1_EXPLICIT |
SEC_ASN1_XTRN | SEC_ASN1_CONTEXT_SPECIFIC | 3,
offsetof(SECKEYRSAPSSParams, trailerField),
SEC_ASN1_SUB(SEC_IntegerTemplate) },
{ 0 }
};
const SEC_ASN1Template SECKEY_DSAPublicKeyTemplate[] = {
{ SEC_ASN1_INTEGER, offsetof(SECKEYPublicKey,u.dsa.publicValue), },
{ 0, }
};
const SEC_ASN1Template SECKEY_PQGParamsTemplate[] = {
{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(SECKEYPQGParams) },
{ SEC_ASN1_INTEGER, offsetof(SECKEYPQGParams,prime) },
{ SEC_ASN1_INTEGER, offsetof(SECKEYPQGParams,subPrime) },
{ SEC_ASN1_INTEGER, offsetof(SECKEYPQGParams,base) },
{ 0, }
};
const SEC_ASN1Template SECKEY_DHPublicKeyTemplate[] = {
{ SEC_ASN1_INTEGER, offsetof(SECKEYPublicKey,u.dh.publicValue), },
{ 0, }
};
const SEC_ASN1Template SECKEY_DHParamKeyTemplate[] = {
{ SEC_ASN1_SEQUENCE, 0, NULL, sizeof(SECKEYPublicKey) },
{ SEC_ASN1_INTEGER, offsetof(SECKEYPublicKey,u.dh.prime), },
{ SEC_ASN1_INTEGER, offsetof(SECKEYPublicKey,u.dh.base), },
/* XXX chrisk: this needs to be expanded for decoding of j and validationParms (RFC2459 7.3.2) */
{ SEC_ASN1_SKIP_REST },
{ 0, }
};
SEC_ASN1_CHOOSER_IMPLEMENT(SECKEY_DSAPublicKeyTemplate)
SEC_ASN1_CHOOSER_IMPLEMENT(SECKEY_RSAPublicKeyTemplate)
SEC_ASN1_CHOOSER_IMPLEMENT(SECKEY_RSAPSSParamsTemplate)
SEC_ASN1_CHOOSER_IMPLEMENT(CERT_SubjectPublicKeyInfoTemplate)
/*
* See bugzilla bug 125359
* Since NSS (via PKCS#11) wants to handle big integers as unsigned ints,
* all of the templates above that en/decode into integers must be converted
* from ASN.1's signed integer type. This is done by marking either the
* source or destination (encoding or decoding, respectively) type as
* siUnsignedInteger.
*/
static void
prepare_rsa_pub_key_for_asn1(SECKEYPublicKey *pubk)
{
pubk->u.rsa.modulus.type = siUnsignedInteger;
pubk->u.rsa.publicExponent.type = siUnsignedInteger;
}
static void
prepare_dsa_pub_key_for_asn1(SECKEYPublicKey *pubk)
{
pubk->u.dsa.publicValue.type = siUnsignedInteger;
}
static void
prepare_pqg_params_for_asn1(SECKEYPQGParams *params)
{
params->prime.type = siUnsignedInteger;
params->subPrime.type = siUnsignedInteger;
params->base.type = siUnsignedInteger;
}
static void
prepare_dh_pub_key_for_asn1(SECKEYPublicKey *pubk)
{
pubk->u.dh.prime.type = siUnsignedInteger;
pubk->u.dh.base.type = siUnsignedInteger;
pubk->u.dh.publicValue.type = siUnsignedInteger;
}
/* Create an RSA key pair is any slot able to do so.
** The created keys are "session" (temporary), not "token" (permanent),
** and they are "sensitive", which makes them costly to move to another token.
*/
SECKEYPrivateKey *
SECKEY_CreateRSAPrivateKey(int keySizeInBits,SECKEYPublicKey **pubk, void *cx)
{
SECKEYPrivateKey *privk;
PK11RSAGenParams param;
PK11SlotInfo *slot = PK11_GetBestSlot(CKM_RSA_PKCS_KEY_PAIR_GEN,cx);
if (!slot) {
return NULL;
}
param.keySizeInBits = keySizeInBits;
param.pe = 65537L;
privk = PK11_GenerateKeyPair(slot,CKM_RSA_PKCS_KEY_PAIR_GEN,&param,pubk,
PR_FALSE, PR_TRUE, cx);
PK11_FreeSlot(slot);
return(privk);
}
/* Create a DH key pair in any slot able to do so,
** This is a "session" (temporary), not "token" (permanent) key.
** Because of the high probability that this key will need to be moved to
** another token, and the high cost of moving "sensitive" keys, we attempt
** to create this key pair without the "sensitive" attribute, but revert to
** creating a "sensitive" key if necessary.
*/
SECKEYPrivateKey *
SECKEY_CreateDHPrivateKey(SECKEYDHParams *param, SECKEYPublicKey **pubk, void *cx)
{
SECKEYPrivateKey *privk;
PK11SlotInfo *slot;
if (!param || !param->base.data || !param->prime.data ||
param->prime.len < 512/8 || param->base.len == 0 ||
param->base.len > param->prime.len + 1 ||
(param->base.len == 1 && param->base.data[0] == 0)) {
PORT_SetError(SEC_ERROR_INVALID_ARGS);
return NULL;
}
slot = PK11_GetBestSlot(CKM_DH_PKCS_KEY_PAIR_GEN,cx);
if (!slot) {
return NULL;
}
privk = PK11_GenerateKeyPair(slot, CKM_DH_PKCS_KEY_PAIR_GEN, param,
pubk, PR_FALSE, PR_FALSE, cx);
if (!privk)
privk = PK11_GenerateKeyPair(slot, CKM_DH_PKCS_KEY_PAIR_GEN, param,
pubk, PR_FALSE, PR_TRUE, cx);
PK11_FreeSlot(slot);
return(privk);
}
/* Create an EC key pair in any slot able to do so,
** This is a "session" (temporary), not "token" (permanent) key.
** Because of the high probability that this key will need to be moved to
** another token, and the high cost of moving "sensitive" keys, we attempt
** to create this key pair without the "sensitive" attribute, but revert to
** creating a "sensitive" key if necessary.
*/
SECKEYPrivateKey *
SECKEY_CreateECPrivateKey(SECKEYECParams *param, SECKEYPublicKey **pubk, void *cx)
{
SECKEYPrivateKey *privk;
PK11SlotInfo *slot = PK11_GetBestSlot(CKM_EC_KEY_PAIR_GEN,cx);
if (!slot) {
return NULL;
}
privk = PK11_GenerateKeyPairWithOpFlags(slot, CKM_EC_KEY_PAIR_GEN,
param, pubk,
PK11_ATTR_SESSION | PK11_ATTR_INSENSITIVE |
PK11_ATTR_PUBLIC,
CKF_DERIVE, CKF_DERIVE|CKF_SIGN,cx);
if (!privk)
privk = PK11_GenerateKeyPairWithOpFlags(slot, CKM_EC_KEY_PAIR_GEN,
param, pubk,
PK11_ATTR_SESSION | PK11_ATTR_SENSITIVE |
PK11_ATTR_PRIVATE,
CKF_DERIVE, CKF_DERIVE|CKF_SIGN,cx);
PK11_FreeSlot(slot);
return(privk);
}
void
SECKEY_DestroyPrivateKey(SECKEYPrivateKey *privk)
{
if (privk) {
if (privk->pkcs11Slot) {
if (privk->pkcs11IsTemp) {
PK11_DestroyObject(privk->pkcs11Slot,privk->pkcs11ID);
}
PK11_FreeSlot(privk->pkcs11Slot);
}
if (privk->arena) {
PORT_FreeArena(privk->arena, PR_TRUE);
}
}
}
void
SECKEY_DestroyPublicKey(SECKEYPublicKey *pubk)
{
if (pubk) {
if (pubk->pkcs11Slot) {
if (!PK11_IsPermObject(pubk->pkcs11Slot,pubk->pkcs11ID)) {
PK11_DestroyObject(pubk->pkcs11Slot,pubk->pkcs11ID);
}
PK11_FreeSlot(pubk->pkcs11Slot);
}
if (pubk->arena) {
PORT_FreeArena(pubk->arena, PR_FALSE);
}
}
}
SECStatus
SECKEY_CopySubjectPublicKeyInfo(PLArenaPool *arena,
CERTSubjectPublicKeyInfo *to,
CERTSubjectPublicKeyInfo *from)
{
SECStatus rv;
SECItem spk;
rv = SECOID_CopyAlgorithmID(arena, &to->algorithm, &from->algorithm);
if (rv == SECSuccess) {
/*
* subjectPublicKey is a bit string, whose length is in bits.
* Convert the length from bits to bytes for SECITEM_CopyItem.
*/
spk = from->subjectPublicKey;
DER_ConvertBitString(&spk);
rv = SECITEM_CopyItem(arena, &to->subjectPublicKey, &spk);
/* Set the length back to bits. */
if (rv == SECSuccess) {
to->subjectPublicKey.len = from->subjectPublicKey.len;
}
}
return rv;
}
/* Procedure to update the pqg parameters for a cert's public key.
* pqg parameters only need to be updated for DSA certificates.
* The procedure uses calls to itself recursively to update a certificate
* issuer's pqg parameters. Some important rules are:
* - Do nothing if the cert already has PQG parameters.
* - If the cert does not have PQG parameters, obtain them from the issuer.
* - A valid cert chain cannot have a DSA cert without
* pqg parameters that has a parent that is not a DSA cert. */
static SECStatus
seckey_UpdateCertPQGChain(CERTCertificate * subjectCert, int count)
{
SECStatus rv;
SECOidData *oid=NULL;
int tag;
CERTSubjectPublicKeyInfo * subjectSpki=NULL;
CERTSubjectPublicKeyInfo * issuerSpki=NULL;
CERTCertificate *issuerCert = NULL;
rv = SECSuccess;
/* increment cert chain length counter*/
count++;
/* check if cert chain length exceeds the maximum length*/
if (count > CERT_MAX_CERT_CHAIN) {
return SECFailure;
}
oid = SECOID_FindOID(&subjectCert->subjectPublicKeyInfo.algorithm.algorithm);
if (oid != NULL) {
tag = oid->offset;
/* Check if cert has a DSA or EC public key. If not, return
* success since no PQG params need to be updated.
*
* Question: do we really need to do this for EC keys. They don't have
* PQG parameters, but they do have parameters. The question is does
* the child cert inherit thost parameters for EC from the parent, or
* do we always include those parameters in each cert.
*/
if ( (tag != SEC_OID_ANSIX9_DSA_SIGNATURE) &&
(tag != SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST) &&
(tag != SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA224_DIGEST) &&
(tag != SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA256_DIGEST) &&
(tag != SEC_OID_BOGUS_DSA_SIGNATURE_WITH_SHA1_DIGEST) &&
(tag != SEC_OID_SDN702_DSA_SIGNATURE) &&
(tag != SEC_OID_ANSIX962_EC_PUBLIC_KEY) ) {
return SECSuccess;
}
} else {
return SECFailure; /* return failure if oid is NULL */
}
/* if cert has PQG parameters, return success */
subjectSpki=&subjectCert->subjectPublicKeyInfo;
if (subjectSpki->algorithm.parameters.len != 0) {
return SECSuccess;
}
/* check if the cert is self-signed */
if (subjectCert->isRoot) {
/* fail since cert is self-signed and has no pqg params. */
return SECFailure;
}
/* get issuer cert */
issuerCert = CERT_FindCertIssuer(subjectCert, PR_Now(), certUsageAnyCA);
if ( ! issuerCert ) {
return SECFailure;
}
/* if parent is not DSA, return failure since
we don't allow this case. */
oid = SECOID_FindOID(&issuerCert->subjectPublicKeyInfo.algorithm.algorithm);
if (oid != NULL) {
tag = oid->offset;
/* Check if issuer cert has a DSA public key. If not,
* return failure. */
if ( (tag != SEC_OID_ANSIX9_DSA_SIGNATURE) &&
(tag != SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST) &&
(tag != SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA224_DIGEST) &&
(tag != SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA256_DIGEST) &&
(tag != SEC_OID_BOGUS_DSA_SIGNATURE_WITH_SHA1_DIGEST) &&
(tag != SEC_OID_SDN702_DSA_SIGNATURE) &&
(tag != SEC_OID_ANSIX962_EC_PUBLIC_KEY) ) {
rv = SECFailure;
goto loser;
}
} else {
rv = SECFailure; /* return failure if oid is NULL */
goto loser;
}
/* at this point the subject cert has no pqg parameters and the
* issuer cert has a DSA public key. Update the issuer's
* pqg parameters with a recursive call to this same function. */
rv = seckey_UpdateCertPQGChain(issuerCert, count);
if (rv != SECSuccess) {
rv = SECFailure;
goto loser;
}
/* ensure issuer has pqg parameters */
issuerSpki=&issuerCert->subjectPublicKeyInfo;
if (issuerSpki->algorithm.parameters.len == 0) {
rv = SECFailure;
}
/* if update was successful and pqg params present, then copy the
* parameters to the subject cert's key. */
if (rv == SECSuccess) {
rv = SECITEM_CopyItem(subjectCert->arena,
&subjectSpki->algorithm.parameters,
&issuerSpki->algorithm.parameters);
}
loser:
if (issuerCert) {
CERT_DestroyCertificate(issuerCert);
}
return rv;
}
SECStatus
SECKEY_UpdateCertPQG(CERTCertificate * subjectCert)
{
if (!subjectCert) {
PORT_SetError(SEC_ERROR_INVALID_ARGS);
return SECFailure;
}
return seckey_UpdateCertPQGChain(subjectCert,0);
}
/* Decode the DSA PQG parameters. The params could be stored in two
* possible formats, the old fortezza-only wrapped format or
* the normal standard format. Store the decoded parameters in
* a V3 certificate data structure. */
static SECStatus
seckey_DSADecodePQG(PLArenaPool *arena, SECKEYPublicKey *pubk,
const SECItem *params) {
SECStatus rv;
SECItem newparams;
if (params == NULL) return SECFailure;
if (params->data == NULL) return SECFailure;
PORT_Assert(arena);
/* make a copy of the data into the arena so QuickDER output is valid */
rv = SECITEM_CopyItem(arena, &newparams, params);
/* Check if params use the standard format.
* The value 0xa1 will appear in the first byte of the parameter data
* if the PQG parameters are not using the standard format. This
* code should be changed to use a better method to detect non-standard
* parameters. */
if ((newparams.data[0] != 0xa1) &&
(newparams.data[0] != 0xa0)) {
if (SECSuccess == rv) {
/* PQG params are in the standard format */
prepare_pqg_params_for_asn1(&pubk->u.dsa.params);
rv = SEC_QuickDERDecodeItem(arena, &pubk->u.dsa.params,
SECKEY_PQGParamsTemplate,
&newparams);
}
} else {
if (SECSuccess == rv) {
/* else the old fortezza-only wrapped format is used. */
PORT_SetError(SEC_ERROR_BAD_DER);
rv = SECFailure;
}
}
return rv;
}
/* Function used to make an oid tag to a key type */
KeyType
seckey_GetKeyType (SECOidTag tag) {
KeyType keyType;
switch (tag) {
case SEC_OID_X500_RSA_ENCRYPTION:
case SEC_OID_PKCS1_RSA_ENCRYPTION:
keyType = rsaKey;
break;
case SEC_OID_PKCS1_RSA_PSS_SIGNATURE:
keyType = rsaPssKey;
break;
case SEC_OID_PKCS1_RSA_OAEP_ENCRYPTION:
keyType = rsaOaepKey;
break;
case SEC_OID_ANSIX9_DSA_SIGNATURE:
keyType = dsaKey;
break;
case SEC_OID_MISSI_KEA_DSS_OLD:
case SEC_OID_MISSI_KEA_DSS:
case SEC_OID_MISSI_DSS_OLD:
case SEC_OID_MISSI_DSS:
keyType = fortezzaKey;
break;
case SEC_OID_MISSI_KEA:
case SEC_OID_MISSI_ALT_KEA:
keyType = keaKey;
break;
case SEC_OID_X942_DIFFIE_HELMAN_KEY:
keyType = dhKey;
break;
case SEC_OID_ANSIX962_EC_PUBLIC_KEY:
keyType = ecKey;
break;
/* accommodate applications that hand us a signature type when they
* should be handing us a cipher type */
case SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION:
case SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION:
case SEC_OID_PKCS1_SHA224_WITH_RSA_ENCRYPTION:
case SEC_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION:
case SEC_OID_PKCS1_SHA384_WITH_RSA_ENCRYPTION:
case SEC_OID_PKCS1_SHA512_WITH_RSA_ENCRYPTION:
keyType = rsaKey;
break;
default:
keyType = nullKey;
}
return keyType;
}
/* Function used to determine what kind of cert we are dealing with. */
KeyType
CERT_GetCertKeyType (const CERTSubjectPublicKeyInfo *spki)
{
return seckey_GetKeyType(SECOID_GetAlgorithmTag(&spki->algorithm));
}
static SECKEYPublicKey *
seckey_ExtractPublicKey(const CERTSubjectPublicKeyInfo *spki)
{
SECKEYPublicKey *pubk;
SECItem os, newOs, newParms;
SECStatus rv;
PLArenaPool *arena;
SECOidTag tag;
arena = PORT_NewArena (DER_DEFAULT_CHUNKSIZE);
if (arena == NULL)
return NULL;
pubk = (SECKEYPublicKey *) PORT_ArenaZAlloc(arena, sizeof(SECKEYPublicKey));
if (pubk == NULL) {
PORT_FreeArena (arena, PR_FALSE);
return NULL;
}
pubk->arena = arena;
pubk->pkcs11Slot = 0;
pubk->pkcs11ID = CK_INVALID_HANDLE;
/* Convert bit string length from bits to bytes */
os = spki->subjectPublicKey;
DER_ConvertBitString (&os);
tag = SECOID_GetAlgorithmTag(&spki->algorithm);
/* copy the DER into the arena, since Quick DER returns data that points
into the DER input, which may get freed by the caller */
rv = SECITEM_CopyItem(arena, &newOs, &os);
if ( rv == SECSuccess )
switch ( tag ) {
case SEC_OID_X500_RSA_ENCRYPTION:
case SEC_OID_PKCS1_RSA_ENCRYPTION:
pubk->keyType = rsaKey;
prepare_rsa_pub_key_for_asn1(pubk);
rv = SEC_QuickDERDecodeItem(arena, pubk, SECKEY_RSAPublicKeyTemplate, &newOs);
if (rv == SECSuccess)
return pubk;
break;
case SEC_OID_ANSIX9_DSA_SIGNATURE:
case SEC_OID_SDN702_DSA_SIGNATURE:
pubk->keyType = dsaKey;
prepare_dsa_pub_key_for_asn1(pubk);
rv = SEC_QuickDERDecodeItem(arena, pubk, SECKEY_DSAPublicKeyTemplate, &newOs);
if (rv != SECSuccess) break;
rv = seckey_DSADecodePQG(arena, pubk,
&spki->algorithm.parameters);
if (rv == SECSuccess) return pubk;
break;
case SEC_OID_X942_DIFFIE_HELMAN_KEY:
pubk->keyType = dhKey;
prepare_dh_pub_key_for_asn1(pubk);
rv = SEC_QuickDERDecodeItem(arena, pubk, SECKEY_DHPublicKeyTemplate, &newOs);
if (rv != SECSuccess) break;
/* copy the DER into the arena, since Quick DER returns data that points
into the DER input, which may get freed by the caller */
rv = SECITEM_CopyItem(arena, &newParms, &spki->algorithm.parameters);
if ( rv != SECSuccess )
break;
rv = SEC_QuickDERDecodeItem(arena, pubk, SECKEY_DHParamKeyTemplate,
&newParms);
if (rv == SECSuccess) return pubk;
break;
case SEC_OID_ANSIX962_EC_PUBLIC_KEY:
pubk->keyType = ecKey;
pubk->u.ec.size = 0;
/* Since PKCS#11 directly takes the DER encoding of EC params
* and public value, we don't need any decoding here.
*/
rv = SECITEM_CopyItem(arena, &pubk->u.ec.DEREncodedParams,
&spki->algorithm.parameters);
if ( rv != SECSuccess )
break;
rv = SECITEM_CopyItem(arena, &pubk->u.ec.publicValue, &newOs);
if (rv == SECSuccess) return pubk;
break;
default:
PORT_SetError(SEC_ERROR_UNSUPPORTED_KEYALG);
rv = SECFailure;
break;
}
SECKEY_DestroyPublicKey (pubk);
return NULL;
}
/* required for JSS */
SECKEYPublicKey *
SECKEY_ExtractPublicKey(const CERTSubjectPublicKeyInfo *spki)
{
return seckey_ExtractPublicKey(spki);
}
SECKEYPublicKey *
CERT_ExtractPublicKey(CERTCertificate *cert)
{
SECStatus rv;
if (!cert) {
PORT_SetError(SEC_ERROR_INVALID_ARGS);
return NULL;
}
rv = SECKEY_UpdateCertPQG(cert);
if (rv != SECSuccess) return NULL;
return seckey_ExtractPublicKey(&cert->subjectPublicKeyInfo);
}
int
SECKEY_ECParamsToKeySize(const SECItem *encodedParams)
{
SECOidTag tag;
SECItem oid = { siBuffer, NULL, 0};
/* The encodedParams data contains 0x06 (SEC_ASN1_OBJECT_ID),
* followed by the length of the curve oid and the curve oid.
*/
oid.len = encodedParams->data[1];
oid.data = encodedParams->data + 2;
if ((tag = SECOID_FindOIDTag(&oid)) == SEC_OID_UNKNOWN)
return 0;
switch (tag) {
case SEC_OID_SECG_EC_SECP112R1:
case SEC_OID_SECG_EC_SECP112R2:
return 112;
case SEC_OID_SECG_EC_SECT113R1:
case SEC_OID_SECG_EC_SECT113R2:
return 113;
case SEC_OID_SECG_EC_SECP128R1:
case SEC_OID_SECG_EC_SECP128R2:
return 128;
case SEC_OID_SECG_EC_SECT131R1:
case SEC_OID_SECG_EC_SECT131R2:
return 131;
case SEC_OID_SECG_EC_SECP160K1:
case SEC_OID_SECG_EC_SECP160R1:
case SEC_OID_SECG_EC_SECP160R2:
return 160;
case SEC_OID_SECG_EC_SECT163K1:
case SEC_OID_SECG_EC_SECT163R1:
case SEC_OID_SECG_EC_SECT163R2:
case SEC_OID_ANSIX962_EC_C2PNB163V1:
case SEC_OID_ANSIX962_EC_C2PNB163V2:
case SEC_OID_ANSIX962_EC_C2PNB163V3:
return 163;
case SEC_OID_ANSIX962_EC_C2PNB176V1:
return 176;
case SEC_OID_ANSIX962_EC_C2TNB191V1:
case SEC_OID_ANSIX962_EC_C2TNB191V2:
case SEC_OID_ANSIX962_EC_C2TNB191V3:
case SEC_OID_ANSIX962_EC_C2ONB191V4:
case SEC_OID_ANSIX962_EC_C2ONB191V5:
return 191;
case SEC_OID_SECG_EC_SECP192K1:
case SEC_OID_ANSIX962_EC_PRIME192V1:
case SEC_OID_ANSIX962_EC_PRIME192V2:
case SEC_OID_ANSIX962_EC_PRIME192V3:
return 192;
case SEC_OID_SECG_EC_SECT193R1:
case SEC_OID_SECG_EC_SECT193R2:
return 193;
case SEC_OID_ANSIX962_EC_C2PNB208W1:
return 208;
case SEC_OID_SECG_EC_SECP224K1:
case SEC_OID_SECG_EC_SECP224R1:
return 224;
case SEC_OID_SECG_EC_SECT233K1:
case SEC_OID_SECG_EC_SECT233R1:
return 233;
case SEC_OID_SECG_EC_SECT239K1:
case SEC_OID_ANSIX962_EC_C2TNB239V1:
case SEC_OID_ANSIX962_EC_C2TNB239V2:
case SEC_OID_ANSIX962_EC_C2TNB239V3:
case SEC_OID_ANSIX962_EC_C2ONB239V4:
case SEC_OID_ANSIX962_EC_C2ONB239V5:
case SEC_OID_ANSIX962_EC_PRIME239V1:
case SEC_OID_ANSIX962_EC_PRIME239V2:
case SEC_OID_ANSIX962_EC_PRIME239V3:
return 239;
case SEC_OID_SECG_EC_SECP256K1:
case SEC_OID_ANSIX962_EC_PRIME256V1:
return 256;
case SEC_OID_ANSIX962_EC_C2PNB272W1:
return 272;
case SEC_OID_SECG_EC_SECT283K1:
case SEC_OID_SECG_EC_SECT283R1:
return 283;
case SEC_OID_ANSIX962_EC_C2PNB304W1:
return 304;
case SEC_OID_ANSIX962_EC_C2TNB359V1:
return 359;
case SEC_OID_ANSIX962_EC_C2PNB368W1:
return 368;
case SEC_OID_SECG_EC_SECP384R1:
return 384;
case SEC_OID_SECG_EC_SECT409K1:
case SEC_OID_SECG_EC_SECT409R1:
return 409;
case SEC_OID_ANSIX962_EC_C2TNB431R1:
return 431;
case SEC_OID_SECG_EC_SECP521R1:
return 521;
case SEC_OID_SECG_EC_SECT571K1:
case SEC_OID_SECG_EC_SECT571R1:
return 571;
default:
PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE);
return 0;
}
}
int
SECKEY_ECParamsToBasePointOrderLen(const SECItem *encodedParams)
{
SECOidTag tag;
SECItem oid = { siBuffer, NULL, 0};
/* The encodedParams data contains 0x06 (SEC_ASN1_OBJECT_ID),
* followed by the length of the curve oid and the curve oid.
*/
oid.len = encodedParams->data[1];
oid.data = encodedParams->data + 2;
if ((tag = SECOID_FindOIDTag(&oid)) == SEC_OID_UNKNOWN)
return 0;
switch (tag) {
case SEC_OID_SECG_EC_SECP112R1:
return 112;
case SEC_OID_SECG_EC_SECP112R2:
return 110;
case SEC_OID_SECG_EC_SECT113R1:
case SEC_OID_SECG_EC_SECT113R2:
return 113;
case SEC_OID_SECG_EC_SECP128R1:
return 128;
case SEC_OID_SECG_EC_SECP128R2:
return 126;
case SEC_OID_SECG_EC_SECT131R1:
case SEC_OID_SECG_EC_SECT131R2:
return 131;
case SEC_OID_SECG_EC_SECP160K1:
case SEC_OID_SECG_EC_SECP160R1:
case SEC_OID_SECG_EC_SECP160R2:
return 161;
case SEC_OID_SECG_EC_SECT163K1:
return 163;
case SEC_OID_SECG_EC_SECT163R1:
return 162;
case SEC_OID_SECG_EC_SECT163R2:
case SEC_OID_ANSIX962_EC_C2PNB163V1:
return 163;
case SEC_OID_ANSIX962_EC_C2PNB163V2:
case SEC_OID_ANSIX962_EC_C2PNB163V3:
return 162;
case SEC_OID_ANSIX962_EC_C2PNB176V1:
return 161;
case SEC_OID_ANSIX962_EC_C2TNB191V1:
return 191;
case SEC_OID_ANSIX962_EC_C2TNB191V2:
return 190;
case SEC_OID_ANSIX962_EC_C2TNB191V3:
return 189;
case SEC_OID_ANSIX962_EC_C2ONB191V4:
return 191;
case SEC_OID_ANSIX962_EC_C2ONB191V5:
return 188;
case SEC_OID_SECG_EC_SECP192K1:
case SEC_OID_ANSIX962_EC_PRIME192V1:
case SEC_OID_ANSIX962_EC_PRIME192V2:
case SEC_OID_ANSIX962_EC_PRIME192V3:
return 192;
case SEC_OID_SECG_EC_SECT193R1:
case SEC_OID_SECG_EC_SECT193R2:
return 193;
case SEC_OID_ANSIX962_EC_C2PNB208W1:
return 193;
case SEC_OID_SECG_EC_SECP224K1:
return 225;
case SEC_OID_SECG_EC_SECP224R1:
return 224;
case SEC_OID_SECG_EC_SECT233K1:
return 232;
case SEC_OID_SECG_EC_SECT233R1:
return 233;
case SEC_OID_SECG_EC_SECT239K1:
case SEC_OID_ANSIX962_EC_C2TNB239V1:
return 238;
case SEC_OID_ANSIX962_EC_C2TNB239V2:
return 237;
case SEC_OID_ANSIX962_EC_C2TNB239V3:
return 236;
case SEC_OID_ANSIX962_EC_C2ONB239V4:
return 238;
case SEC_OID_ANSIX962_EC_C2ONB239V5:
return 237;
case SEC_OID_ANSIX962_EC_PRIME239V1:
case SEC_OID_ANSIX962_EC_PRIME239V2:
case SEC_OID_ANSIX962_EC_PRIME239V3:
return 239;
case SEC_OID_SECG_EC_SECP256K1:
case SEC_OID_ANSIX962_EC_PRIME256V1:
return 256;
case SEC_OID_ANSIX962_EC_C2PNB272W1:
return 257;
case SEC_OID_SECG_EC_SECT283K1:
return 281;
case SEC_OID_SECG_EC_SECT283R1:
return 282;
case SEC_OID_ANSIX962_EC_C2PNB304W1:
return 289;
case SEC_OID_ANSIX962_EC_C2TNB359V1:
return 353;
case SEC_OID_ANSIX962_EC_C2PNB368W1:
return 353;
case SEC_OID_SECG_EC_SECP384R1:
return 384;
case SEC_OID_SECG_EC_SECT409K1:
return 407;
case SEC_OID_SECG_EC_SECT409R1:
return 409;
case SEC_OID_ANSIX962_EC_C2TNB431R1:
return 418;
case SEC_OID_SECG_EC_SECP521R1:
return 521;
case SEC_OID_SECG_EC_SECT571K1:
case SEC_OID_SECG_EC_SECT571R1:
return 570;
default:
PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE);
return 0;
}
}
/* returns key strength in bytes (not bits) */
unsigned
SECKEY_PublicKeyStrength(const SECKEYPublicKey *pubk)
{
unsigned char b0;
unsigned size;
/* interpret modulus length as key strength */
if (!pubk)
goto loser;
switch (pubk->keyType) {
case rsaKey:
if (!pubk->u.rsa.modulus.data) break;
b0 = pubk->u.rsa.modulus.data[0];
return b0 ? pubk->u.rsa.modulus.len : pubk->u.rsa.modulus.len - 1;
case dsaKey:
if (!pubk->u.dsa.publicValue.data) break;
b0 = pubk->u.dsa.publicValue.data[0];
return b0 ? pubk->u.dsa.publicValue.len :
pubk->u.dsa.publicValue.len - 1;
case dhKey:
if (!pubk->u.dh.publicValue.data) break;
b0 = pubk->u.dh.publicValue.data[0];
return b0 ? pubk->u.dh.publicValue.len :
pubk->u.dh.publicValue.len - 1;
case ecKey:
/* Get the key size in bits and adjust */
size = SECKEY_ECParamsToKeySize(&pubk->u.ec.DEREncodedParams);
return (size + 7)/8;
default:
break;
}
loser:
PORT_SetError(SEC_ERROR_INVALID_KEY);
return 0;
}
/* returns key strength in bits */
unsigned
SECKEY_PublicKeyStrengthInBits(const SECKEYPublicKey *pubk)
{
unsigned size;
switch (pubk->keyType) {
case rsaKey:
case dsaKey:
case dhKey:
return SECKEY_PublicKeyStrength(pubk) * 8; /* 1 byte = 8 bits */
case ecKey:
size = SECKEY_ECParamsToKeySize(&pubk->u.ec.DEREncodedParams);
return size;
default:
break;
}
PORT_SetError(SEC_ERROR_INVALID_KEY);
return 0;
}
/* returns signature length in bytes (not bits) */
unsigned
SECKEY_SignatureLen(const SECKEYPublicKey *pubk)
{
unsigned char b0;
unsigned size;
switch (pubk->keyType) {
case rsaKey:
b0 = pubk->u.rsa.modulus.data[0];
return b0 ? pubk->u.rsa.modulus.len : pubk->u.rsa.modulus.len - 1;
case dsaKey:
return pubk->u.dsa.params.subPrime.len * 2;
case ecKey:
/* Get the base point order length in bits and adjust */
size = SECKEY_ECParamsToBasePointOrderLen(
&pubk->u.ec.DEREncodedParams);
return ((size + 7)/8) * 2;
default:
break;
}
PORT_SetError(SEC_ERROR_INVALID_KEY);
return 0;
}
SECKEYPrivateKey *
SECKEY_CopyPrivateKey(const SECKEYPrivateKey *privk)
{
SECKEYPrivateKey *copyk;
PLArenaPool *arena;
if (!privk || !privk->pkcs11Slot) {
PORT_SetError(SEC_ERROR_INVALID_ARGS);
return NULL;
}
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
if (arena == NULL) {
return NULL;
}
copyk = (SECKEYPrivateKey *) PORT_ArenaZAlloc (arena, sizeof (SECKEYPrivateKey));
if (copyk) {
copyk->arena = arena;
copyk->keyType = privk->keyType;
/* copy the PKCS #11 parameters */
copyk->pkcs11Slot = PK11_ReferenceSlot(privk->pkcs11Slot);
/* if the key we're referencing was a temparary key we have just
* created, that we want to go away when we're through, we need
* to make a copy of it */
if (privk->pkcs11IsTemp) {
copyk->pkcs11ID =
PK11_CopyKey(privk->pkcs11Slot,privk->pkcs11ID);
if (copyk->pkcs11ID == CK_INVALID_HANDLE) goto fail;
} else {
copyk->pkcs11ID = privk->pkcs11ID;
}
copyk->pkcs11IsTemp = privk->pkcs11IsTemp;
copyk->wincx = privk->wincx;
copyk->staticflags = privk->staticflags;
return copyk;
} else {
PORT_SetError (SEC_ERROR_NO_MEMORY);
}
fail:
PORT_FreeArena (arena, PR_FALSE);
return NULL;
}
SECKEYPublicKey *
SECKEY_CopyPublicKey(const SECKEYPublicKey *pubk)
{
SECKEYPublicKey *copyk;
PLArenaPool *arena;
SECStatus rv = SECSuccess;
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
if (arena == NULL) {
PORT_SetError (SEC_ERROR_NO_MEMORY);
return NULL;
}
copyk = (SECKEYPublicKey *) PORT_ArenaZAlloc (arena, sizeof (SECKEYPublicKey));
if (!copyk) {
PORT_FreeArena (arena, PR_FALSE);
PORT_SetError (SEC_ERROR_NO_MEMORY);
return NULL;
}
copyk->arena = arena;
copyk->keyType = pubk->keyType;
if (pubk->pkcs11Slot &&
PK11_IsPermObject(pubk->pkcs11Slot,pubk->pkcs11ID)) {
copyk->pkcs11Slot = PK11_ReferenceSlot(pubk->pkcs11Slot);
copyk->pkcs11ID = pubk->pkcs11ID;
} else {
copyk->pkcs11Slot = NULL; /* go get own reference */
copyk->pkcs11ID = CK_INVALID_HANDLE;
}
switch (pubk->keyType) {
case rsaKey:
rv = SECITEM_CopyItem(arena, &copyk->u.rsa.modulus,
&pubk->u.rsa.modulus);
if (rv == SECSuccess) {
rv = SECITEM_CopyItem (arena, &copyk->u.rsa.publicExponent,
&pubk->u.rsa.publicExponent);
if (rv == SECSuccess)
return copyk;
}
break;
case dsaKey:
rv = SECITEM_CopyItem(arena, &copyk->u.dsa.publicValue,
&pubk->u.dsa.publicValue);
if (rv != SECSuccess) break;
rv = SECITEM_CopyItem(arena, &copyk->u.dsa.params.prime,
&pubk->u.dsa.params.prime);
if (rv != SECSuccess) break;
rv = SECITEM_CopyItem(arena, &copyk->u.dsa.params.subPrime,
&pubk->u.dsa.params.subPrime);
if (rv != SECSuccess) break;
rv = SECITEM_CopyItem(arena, &copyk->u.dsa.params.base,
&pubk->u.dsa.params.base);
break;
case dhKey:
rv = SECITEM_CopyItem(arena,&copyk->u.dh.prime,&pubk->u.dh.prime);
if (rv != SECSuccess) break;
rv = SECITEM_CopyItem(arena,&copyk->u.dh.base,&pubk->u.dh.base);
if (rv != SECSuccess) break;
rv = SECITEM_CopyItem(arena, &copyk->u.dh.publicValue,
&pubk->u.dh.publicValue);
break;
case ecKey:
copyk->u.ec.size = pubk->u.ec.size;
rv = SECITEM_CopyItem(arena,&copyk->u.ec.DEREncodedParams,
&pubk->u.ec.DEREncodedParams);
if (rv != SECSuccess) break;
rv = SECITEM_CopyItem(arena,&copyk->u.ec.publicValue,
&pubk->u.ec.publicValue);
break;
case nullKey:
return copyk;
default:
PORT_SetError(SEC_ERROR_INVALID_KEY);
rv = SECFailure;
break;
}
if (rv == SECSuccess)
return copyk;
SECKEY_DestroyPublicKey (copyk);
return NULL;
}
SECKEYPublicKey *
SECKEY_ConvertToPublicKey(SECKEYPrivateKey *privk)
{
SECKEYPublicKey *pubk;
PLArenaPool *arena;
CERTCertificate *cert;
SECStatus rv;
/*
* First try to look up the cert.
*/
cert = PK11_GetCertFromPrivateKey(privk);
if (cert) {
pubk = CERT_ExtractPublicKey(cert);
CERT_DestroyCertificate(cert);
return pubk;
}
/* couldn't find the cert, build pub key by hand */
arena = PORT_NewArena (DER_DEFAULT_CHUNKSIZE);
if (arena == NULL) {
PORT_SetError (SEC_ERROR_NO_MEMORY);
return NULL;
}
pubk = (SECKEYPublicKey *)PORT_ArenaZAlloc(arena,
sizeof (SECKEYPublicKey));
if (pubk == NULL) {
PORT_FreeArena(arena,PR_FALSE);
return NULL;
}
pubk->keyType = privk->keyType;
pubk->pkcs11Slot = NULL;
pubk->pkcs11ID = CK_INVALID_HANDLE;
pubk->arena = arena;
switch(privk->keyType) {
case nullKey:
case dhKey:
case dsaKey:
/* Nothing to query, if the cert isn't there, we're done -- no way
* to get the public key */
break;
case rsaKey:
rv = PK11_ReadAttribute(privk->pkcs11Slot,privk->pkcs11ID,
CKA_MODULUS,arena,&pubk->u.rsa.modulus);
if (rv != SECSuccess) break;
rv = PK11_ReadAttribute(privk->pkcs11Slot,privk->pkcs11ID,
CKA_PUBLIC_EXPONENT,arena,&pubk->u.rsa.publicExponent);
if (rv != SECSuccess) break;
return pubk;
break;
default:
break;
}
PORT_FreeArena (arena, PR_FALSE);
return NULL;
}
static CERTSubjectPublicKeyInfo *
seckey_CreateSubjectPublicKeyInfo_helper(SECKEYPublicKey *pubk)
{
CERTSubjectPublicKeyInfo *spki;
PLArenaPool *arena;
SECItem params = { siBuffer, NULL, 0 };
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
if (arena == NULL) {
PORT_SetError(SEC_ERROR_NO_MEMORY);
return NULL;
}
spki = (CERTSubjectPublicKeyInfo *) PORT_ArenaZAlloc(arena, sizeof (*spki));
if (spki != NULL) {
SECStatus rv;
SECItem *rv_item;
spki->arena = arena;
switch(pubk->keyType) {
case rsaKey:
rv = SECOID_SetAlgorithmID(arena, &spki->algorithm,
SEC_OID_PKCS1_RSA_ENCRYPTION, 0);
if (rv == SECSuccess) {
/*
* DER encode the public key into the subjectPublicKeyInfo.
*/
prepare_rsa_pub_key_for_asn1(pubk);
rv_item = SEC_ASN1EncodeItem(arena, &spki->subjectPublicKey,
pubk, SECKEY_RSAPublicKeyTemplate);
if (rv_item != NULL) {
/*
* The stored value is supposed to be a BIT_STRING,
* so convert the length.
*/
spki->subjectPublicKey.len <<= 3;
/*
* We got a good one; return it.
*/
return spki;
}
}
break;
case dsaKey:
/* DER encode the params. */
prepare_pqg_params_for_asn1(&pubk->u.dsa.params);
rv_item = SEC_ASN1EncodeItem(arena, &params, &pubk->u.dsa.params,
SECKEY_PQGParamsTemplate);
if (rv_item != NULL) {
rv = SECOID_SetAlgorithmID(arena, &spki->algorithm,
SEC_OID_ANSIX9_DSA_SIGNATURE,
&params);
if (rv == SECSuccess) {
/*
* DER encode the public key into the subjectPublicKeyInfo.
*/
prepare_dsa_pub_key_for_asn1(pubk);
rv_item = SEC_ASN1EncodeItem(arena, &spki->subjectPublicKey,
pubk,
SECKEY_DSAPublicKeyTemplate);
if (rv_item != NULL) {
/*
* The stored value is supposed to be a BIT_STRING,
* so convert the length.
*/
spki->subjectPublicKey.len <<= 3;
/*
* We got a good one; return it.
*/
return spki;
}
}
}
SECITEM_FreeItem(&params, PR_FALSE);
break;
case ecKey:
rv = SECITEM_CopyItem(arena, &params,
&pubk->u.ec.DEREncodedParams);
if (rv != SECSuccess) break;
rv = SECOID_SetAlgorithmID(arena, &spki->algorithm,
SEC_OID_ANSIX962_EC_PUBLIC_KEY,
&params);
if (rv != SECSuccess) break;
rv = SECITEM_CopyItem(arena, &spki->subjectPublicKey,
&pubk->u.ec.publicValue);
if (rv == SECSuccess) {
/*
* The stored value is supposed to be a BIT_STRING,
* so convert the length.
*/
spki->subjectPublicKey.len <<= 3;
/*
* We got a good one; return it.
*/
return spki;
}
break;
case dhKey: /* later... */
break;
default:
break;
}
} else {
PORT_SetError(SEC_ERROR_NO_MEMORY);
}
PORT_FreeArena(arena, PR_FALSE);
return NULL;
}
CERTSubjectPublicKeyInfo *
SECKEY_CreateSubjectPublicKeyInfo(const SECKEYPublicKey *pubk)
{
CERTSubjectPublicKeyInfo *spki;
SECKEYPublicKey *tempKey;
if (!pubk) {
PORT_SetError(SEC_ERROR_INVALID_ARGS);
return NULL;
}
tempKey = SECKEY_CopyPublicKey(pubk);
if (!tempKey) {
return NULL;
}
spki = seckey_CreateSubjectPublicKeyInfo_helper(tempKey);
SECKEY_DestroyPublicKey(tempKey);
return spki;
}
void
SECKEY_DestroySubjectPublicKeyInfo(CERTSubjectPublicKeyInfo *spki)
{
if (spki && spki->arena) {
PORT_FreeArena(spki->arena, PR_FALSE);
}
}
SECItem *
SECKEY_EncodeDERSubjectPublicKeyInfo(const SECKEYPublicKey *pubk)
{
CERTSubjectPublicKeyInfo *spki=NULL;
SECItem *spkiDER=NULL;
/* get the subjectpublickeyinfo */
spki = SECKEY_CreateSubjectPublicKeyInfo(pubk);
if( spki == NULL ) {
goto finish;
}
/* DER-encode the subjectpublickeyinfo */
spkiDER = SEC_ASN1EncodeItem(NULL /*arena*/, NULL/*dest*/, spki,
CERT_SubjectPublicKeyInfoTemplate);
SECKEY_DestroySubjectPublicKeyInfo(spki);
finish:
return spkiDER;
}
CERTSubjectPublicKeyInfo *
SECKEY_DecodeDERSubjectPublicKeyInfo(const SECItem *spkider)
{
PLArenaPool *arena;
CERTSubjectPublicKeyInfo *spki;
SECStatus rv;
SECItem newSpkider;
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
if (arena == NULL) {
PORT_SetError(SEC_ERROR_NO_MEMORY);
return NULL;
}
spki = (CERTSubjectPublicKeyInfo *)
PORT_ArenaZAlloc(arena, sizeof (CERTSubjectPublicKeyInfo));
if (spki != NULL) {
spki->arena = arena;
/* copy the DER into the arena, since Quick DER returns data that points
into the DER input, which may get freed by the caller */
rv = SECITEM_CopyItem(arena, &newSpkider, spkider);
if ( rv == SECSuccess ) {
rv = SEC_QuickDERDecodeItem(arena,spki,
CERT_SubjectPublicKeyInfoTemplate, &newSpkider);
}
if (rv == SECSuccess)
return spki;
} else {
PORT_SetError(SEC_ERROR_NO_MEMORY);
}
PORT_FreeArena(arena, PR_FALSE);
return NULL;
}
/*
* Decode a base64 ascii encoded DER encoded subject public key info.
*/
CERTSubjectPublicKeyInfo *
SECKEY_ConvertAndDecodeSubjectPublicKeyInfo(const char *spkistr)
{
CERTSubjectPublicKeyInfo *spki;
SECStatus rv;
SECItem der;
rv = ATOB_ConvertAsciiToItem(&der, spkistr);
if (rv != SECSuccess)
return NULL;
spki = SECKEY_DecodeDERSubjectPublicKeyInfo(&der);
PORT_Free(der.data);
return spki;
}
/*
* Decode a base64 ascii encoded DER encoded public key and challenge
* Verify digital signature and make sure challenge matches
*/
CERTSubjectPublicKeyInfo *
SECKEY_ConvertAndDecodePublicKeyAndChallenge(char *pkacstr, char *challenge,
void *wincx)
{
CERTSubjectPublicKeyInfo *spki = NULL;
CERTPublicKeyAndChallenge pkac;
SECStatus rv;
SECItem signedItem;
PLArenaPool *arena = NULL;
CERTSignedData sd;
SECItem sig;
SECKEYPublicKey *pubKey = NULL;
unsigned int len;
signedItem.data = NULL;
/* convert the base64 encoded data to binary */
rv = ATOB_ConvertAsciiToItem(&signedItem, pkacstr);
if (rv != SECSuccess) {
goto loser;
}
/* create an arena */
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
if (arena == NULL) {
goto loser;
}
/* decode the outer wrapping of signed data */
PORT_Memset(&sd, 0, sizeof(CERTSignedData));
rv = SEC_QuickDERDecodeItem(arena, &sd, CERT_SignedDataTemplate, &signedItem );
if ( rv ) {
goto loser;
}
/* decode the public key and challenge wrapper */
PORT_Memset(&pkac, 0, sizeof(CERTPublicKeyAndChallenge));
rv = SEC_QuickDERDecodeItem(arena, &pkac, CERT_PublicKeyAndChallengeTemplate,
&sd.data);
if ( rv ) {
goto loser;
}
/* decode the subject public key info */
spki = SECKEY_DecodeDERSubjectPublicKeyInfo(&pkac.spki);
if ( spki == NULL ) {
goto loser;
}
/* get the public key */
pubKey = seckey_ExtractPublicKey(spki);
if ( pubKey == NULL ) {
goto loser;
}
/* check the signature */
sig = sd.signature;
DER_ConvertBitString(&sig);
rv = VFY_VerifyDataWithAlgorithmID(sd.data.data, sd.data.len, pubKey, &sig,
&(sd.signatureAlgorithm), NULL, wincx);
if ( rv != SECSuccess ) {
goto loser;
}
/* check the challenge */
if ( challenge ) {
len = PORT_Strlen(challenge);
/* length is right */
if ( len != pkac.challenge.len ) {
goto loser;
}
/* actual data is right */
if ( PORT_Memcmp(challenge, pkac.challenge.data, len) != 0 ) {
goto loser;
}
}
goto done;
loser:
/* make sure that we return null if we got an error */
if ( spki ) {
SECKEY_DestroySubjectPublicKeyInfo(spki);
}
spki = NULL;
done:
if ( signedItem.data ) {
PORT_Free(signedItem.data);
}
if ( arena ) {
PORT_FreeArena(arena, PR_FALSE);
}
if ( pubKey ) {
SECKEY_DestroyPublicKey(pubKey);
}
return spki;
}
void
SECKEY_DestroyPrivateKeyInfo(SECKEYPrivateKeyInfo *pvk,
PRBool freeit)
{
PLArenaPool *poolp;
if(pvk != NULL) {
if(pvk->arena) {
poolp = pvk->arena;
/* zero structure since PORT_FreeArena does not support
* this yet.
*/
PORT_Memset(pvk->privateKey.data, 0, pvk->privateKey.len);
PORT_Memset((char *)pvk, 0, sizeof(*pvk));
if(freeit == PR_TRUE) {
PORT_FreeArena(poolp, PR_TRUE);
} else {
pvk->arena = poolp;
}
} else {
SECITEM_ZfreeItem(&pvk->version, PR_FALSE);
SECITEM_ZfreeItem(&pvk->privateKey, PR_FALSE);
SECOID_DestroyAlgorithmID(&pvk->algorithm, PR_FALSE);
PORT_Memset((char *)pvk, 0, sizeof(*pvk));
if(freeit == PR_TRUE) {
PORT_Free(pvk);
}
}
}
}
void
SECKEY_DestroyEncryptedPrivateKeyInfo(SECKEYEncryptedPrivateKeyInfo *epki,
PRBool freeit)
{
PLArenaPool *poolp;
if(epki != NULL) {
if(epki->arena) {
poolp = epki->arena;
/* zero structure since PORT_FreeArena does not support
* this yet.
*/
PORT_Memset(epki->encryptedData.data, 0, epki->encryptedData.len);
PORT_Memset((char *)epki, 0, sizeof(*epki));
if(freeit == PR_TRUE) {
PORT_FreeArena(poolp, PR_TRUE);
} else {
epki->arena = poolp;
}
} else {
SECITEM_ZfreeItem(&epki->encryptedData, PR_FALSE);
SECOID_DestroyAlgorithmID(&epki->algorithm, PR_FALSE);
PORT_Memset((char *)epki, 0, sizeof(*epki));
if(freeit == PR_TRUE) {
PORT_Free(epki);
}
}
}
}
SECStatus
SECKEY_CopyPrivateKeyInfo(PLArenaPool *poolp,
SECKEYPrivateKeyInfo *to,
const SECKEYPrivateKeyInfo *from)
{
SECStatus rv = SECFailure;
if((to == NULL) || (from == NULL)) {
return SECFailure;
}
rv = SECOID_CopyAlgorithmID(poolp, &to->algorithm, &from->algorithm);
if(rv != SECSuccess) {
return SECFailure;
}
rv = SECITEM_CopyItem(poolp, &to->privateKey, &from->privateKey);
if(rv != SECSuccess) {
return SECFailure;
}
rv = SECITEM_CopyItem(poolp, &to->version, &from->version);
return rv;
}
SECStatus
SECKEY_CopyEncryptedPrivateKeyInfo(PLArenaPool *poolp,
SECKEYEncryptedPrivateKeyInfo *to,
const SECKEYEncryptedPrivateKeyInfo *from)
{
SECStatus rv = SECFailure;
if((to == NULL) || (from == NULL)) {
return SECFailure;
}
rv = SECOID_CopyAlgorithmID(poolp, &to->algorithm, &from->algorithm);
if(rv != SECSuccess) {
return SECFailure;
}
rv = SECITEM_CopyItem(poolp, &to->encryptedData, &from->encryptedData);
return rv;
}
KeyType
SECKEY_GetPrivateKeyType(const SECKEYPrivateKey *privKey)
{
return privKey->keyType;
}
KeyType
SECKEY_GetPublicKeyType(const SECKEYPublicKey *pubKey)
{
return pubKey->keyType;
}
SECKEYPublicKey*
SECKEY_ImportDERPublicKey(const SECItem *derKey, CK_KEY_TYPE type)
{
SECKEYPublicKey *pubk = NULL;
SECStatus rv = SECFailure;
SECItem newDerKey;
PLArenaPool *arena = NULL;
if (!derKey) {
return NULL;
}
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
if (arena == NULL) {
PORT_SetError(SEC_ERROR_NO_MEMORY);
goto finish;
}
pubk = PORT_ArenaZNew(arena, SECKEYPublicKey);
if (pubk == NULL) {
goto finish;
}
pubk->arena = arena;
rv = SECITEM_CopyItem(pubk->arena, &newDerKey, derKey);
if (SECSuccess != rv) {
goto finish;
}
pubk->pkcs11Slot = NULL;
pubk->pkcs11ID = CK_INVALID_HANDLE;
switch( type ) {
case CKK_RSA:
prepare_rsa_pub_key_for_asn1(pubk);
rv = SEC_QuickDERDecodeItem(pubk->arena, pubk, SECKEY_RSAPublicKeyTemplate, &newDerKey);
pubk->keyType = rsaKey;
break;
case CKK_DSA:
prepare_dsa_pub_key_for_asn1(pubk);
rv = SEC_QuickDERDecodeItem(pubk->arena, pubk, SECKEY_DSAPublicKeyTemplate, &newDerKey);
pubk->keyType = dsaKey;
break;
case CKK_DH:
prepare_dh_pub_key_for_asn1(pubk);
rv = SEC_QuickDERDecodeItem(pubk->arena, pubk, SECKEY_DHPublicKeyTemplate, &newDerKey);
pubk->keyType = dhKey;
break;
default:
rv = SECFailure;
break;
}
finish:
if (rv != SECSuccess) {
if (arena != NULL) {
PORT_FreeArena(arena, PR_FALSE);
}
pubk = NULL;
}
return pubk;
}
SECKEYPrivateKeyList*
SECKEY_NewPrivateKeyList(void)
{
PLArenaPool *arena = NULL;
SECKEYPrivateKeyList *ret = NULL;
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
if ( arena == NULL ) {
goto loser;
}
ret = (SECKEYPrivateKeyList *)PORT_ArenaZAlloc(arena,
sizeof(SECKEYPrivateKeyList));
if ( ret == NULL ) {
goto loser;
}
ret->arena = arena;
PR_INIT_CLIST(&ret->list);
return(ret);
loser:
if ( arena != NULL ) {
PORT_FreeArena(arena, PR_FALSE);
}
return(NULL);
}
void
SECKEY_DestroyPrivateKeyList(SECKEYPrivateKeyList *keys)
{
while( !PR_CLIST_IS_EMPTY(&keys->list) ) {
SECKEY_RemovePrivateKeyListNode(
(SECKEYPrivateKeyListNode*)(PR_LIST_HEAD(&keys->list)) );
}
PORT_FreeArena(keys->arena, PR_FALSE);
return;
}
void
SECKEY_RemovePrivateKeyListNode(SECKEYPrivateKeyListNode *node)
{
PR_ASSERT(node->key);
SECKEY_DestroyPrivateKey(node->key);
node->key = NULL;
PR_REMOVE_LINK(&node->links);
return;
}
SECStatus
SECKEY_AddPrivateKeyToListTail( SECKEYPrivateKeyList *list,
SECKEYPrivateKey *key)
{
SECKEYPrivateKeyListNode *node;
node = (SECKEYPrivateKeyListNode *)PORT_ArenaZAlloc(list->arena,
sizeof(SECKEYPrivateKeyListNode));
if ( node == NULL ) {
goto loser;
}
PR_INSERT_BEFORE(&node->links, &list->list);
node->key = key;
return(SECSuccess);
loser:
return(SECFailure);
}
SECKEYPublicKeyList*
SECKEY_NewPublicKeyList(void)
{
PLArenaPool *arena = NULL;
SECKEYPublicKeyList *ret = NULL;
arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
if ( arena == NULL ) {
goto loser;
}
ret = (SECKEYPublicKeyList *)PORT_ArenaZAlloc(arena,
sizeof(SECKEYPublicKeyList));
if ( ret == NULL ) {
goto loser;
}
ret->arena = arena;
PR_INIT_CLIST(&ret->list);
return(ret);
loser:
if ( arena != NULL ) {
PORT_FreeArena(arena, PR_FALSE);
}
return(NULL);
}
void
SECKEY_DestroyPublicKeyList(SECKEYPublicKeyList *keys)
{
while( !PR_CLIST_IS_EMPTY(&keys->list) ) {
SECKEY_RemovePublicKeyListNode(
(SECKEYPublicKeyListNode*)(PR_LIST_HEAD(&keys->list)) );
}
PORT_FreeArena(keys->arena, PR_FALSE);
return;
}
void
SECKEY_RemovePublicKeyListNode(SECKEYPublicKeyListNode *node)
{
PR_ASSERT(node->key);
SECKEY_DestroyPublicKey(node->key);
node->key = NULL;
PR_REMOVE_LINK(&node->links);
return;
}
SECStatus
SECKEY_AddPublicKeyToListTail( SECKEYPublicKeyList *list,
SECKEYPublicKey *key)
{
SECKEYPublicKeyListNode *node;
node = (SECKEYPublicKeyListNode *)PORT_ArenaZAlloc(list->arena,
sizeof(SECKEYPublicKeyListNode));
if ( node == NULL ) {
goto loser;
}
PR_INSERT_BEFORE(&node->links, &list->list);
node->key = key;
return(SECSuccess);
loser:
return(SECFailure);
}
#define SECKEY_CacheAttribute(key, attribute) \
if (CK_TRUE == PK11_HasAttributeSet(key->pkcs11Slot, key->pkcs11ID, attribute, PR_FALSE)) { \
key->staticflags |= SECKEY_##attribute; \
} else { \
key->staticflags &= (~SECKEY_##attribute); \
}
SECStatus
SECKEY_CacheStaticFlags(SECKEYPrivateKey* key)
{
SECStatus rv = SECFailure;
if (key && key->pkcs11Slot && key->pkcs11ID) {
key->staticflags |= SECKEY_Attributes_Cached;
SECKEY_CacheAttribute(key, CKA_PRIVATE);
SECKEY_CacheAttribute(key, CKA_ALWAYS_AUTHENTICATE);
rv = SECSuccess;
}
return rv;
}
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