Add m-esr52 at 52.6.0

1 files changed, 1963 insertions, 0 deletions

diff --git a/security/nss/lib/cryptohi/seckey.c b/security/nss/lib/cryptohi/seckey.c
new file mode 100644
index 000000000..359de8e46
--- /dev/null
+++ b/security/nss/lib/cryptohi/seckey.c
@@ -0,0 +1,1963 @@
+/* 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 ||
+        SECKEY_BigIntegerBitLength(&param->prime) < DH_MIN_P_BITS ||
+        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;
+
+    /* 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));
+}
+
+/* Ensure pubKey contains an OID */
+static SECStatus
+seckey_HasCurveOID(const SECKEYPublicKey *pubKey)
+{
+    SECItem oid;
+    SECStatus rv;
+    PORTCheapArenaPool tmpArena;
+
+    PORT_InitCheapArena(&tmpArena, DER_DEFAULT_CHUNKSIZE);
+    /* If we can decode it, an OID is available. */
+    rv = SEC_QuickDERDecodeItem(&tmpArena.arena, &oid,
+                                SEC_ASN1_GET(SEC_ObjectIDTemplate),
+                                &pubKey->u.ec.DEREncodedParams);
+    PORT_DestroyCheapArena(&tmpArena);
+    return rv;
+}
+
+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:
+            case SEC_OID_PKCS1_RSA_PSS_SIGNATURE:
+                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) {
+                    break;
+                }
+                pubk->u.ec.encoding = ECPoint_Undefined;
+                rv = seckey_HasCurveOID(pubk);
+                if (rv == SECSuccess) {
+                    return pubk;
+                }
+                break;
+
+            default:
+                PORT_SetError(SEC_ERROR_UNSUPPORTED_KEYALG);
+                break;
+        }
+
+    SECKEY_DestroyPublicKey(pubk);
+    return NULL;
+}
+
+/* required for JSS */
+SECKEYPublicKey *
+SECKEY_ExtractPublicKey(const CERTSubjectPublicKeyInfo *spki)
+{
+    return seckey_ExtractPublicKey(spki);
+}
+
+SECKEYPublicKey *
+CERT_ExtractPublicKey(CERTCertificate *cert)
+{
+    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;
+
+        case SEC_OID_CURVE25519:
+            return 255;
+
+        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;
+
+        case SEC_OID_CURVE25519:
+            return 255;
+
+        default:
+            PORT_SetError(SEC_ERROR_UNSUPPORTED_ELLIPTIC_CURVE);
+            return 0;
+    }
+}
+
+/* The number of bits in the number from the first non-zero bit onward. */
+unsigned
+SECKEY_BigIntegerBitLength(const SECItem *number)
+{
+    const unsigned char *p;
+    unsigned octets;
+    unsigned bits;
+
+    if (!number || !number->data) {
+        PORT_SetError(SEC_ERROR_INVALID_KEY);
+        return 0;
+    }
+
+    p = number->data;
+    octets = number->len;
+    while (octets > 0 && !*p) {
+        ++p;
+        --octets;
+    }
+    if (octets == 0) {
+        return 0;
+    }
+    /* bits = 7..1 because we know at least one bit is set already */
+    /* Note: This could do a binary search, but this is faster for keys if we
+     * assume that good keys will have the MSB set. */
+    for (bits = 7; bits > 0; --bits) {
+        if (*p & (1 << bits)) {
+            break;
+        }
+    }
+    return octets * 8 + bits - 7;
+}
+
+/* returns key strength in bytes (not bits) */
+unsigned
+SECKEY_PublicKeyStrength(const SECKEYPublicKey *pubk)
+{
+    return (SECKEY_PublicKeyStrengthInBits(pubk) + 7) / 8;
+}
+
+/* returns key strength in bits */
+unsigned
+SECKEY_PublicKeyStrengthInBits(const SECKEYPublicKey *pubk)
+{
+    unsigned bitSize = 0;
+
+    if (!pubk) {
+        PORT_SetError(SEC_ERROR_INVALID_KEY);
+        return 0;
+    }
+
+    /* interpret modulus length as key strength */
+    switch (pubk->keyType) {
+        case rsaKey:
+            bitSize = SECKEY_BigIntegerBitLength(&pubk->u.rsa.modulus);
+            break;
+        case dsaKey:
+            bitSize = SECKEY_BigIntegerBitLength(&pubk->u.dsa.params.prime);
+            break;
+        case dhKey:
+            bitSize = SECKEY_BigIntegerBitLength(&pubk->u.dh.prime);
+            break;
+        case ecKey:
+            bitSize = SECKEY_ECParamsToKeySize(&pubk->u.ec.DEREncodedParams);
+            break;
+        default:
+            PORT_SetError(SEC_ERROR_INVALID_KEY);
+            break;
+    }
+    return bitSize;
+}
+
+/* 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 = seckey_HasCurveOID(pubk);
+            if (rv != SECSuccess) {
+                break;
+            }
+            rv = SECITEM_CopyItem(arena, &copyk->u.ec.DEREncodedParams,
+                                  &pubk->u.ec.DEREncodedParams);
+            if (rv != SECSuccess) {
+                break;
+            }
+            copyk->u.ec.encoding = ECPoint_Undefined;
+            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(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(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(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(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;
+}
+
+SECOidTag
+SECKEY_GetECCOid(const SECKEYECParams *params)
+{
+    SECItem oid = { siBuffer, NULL, 0 };
+    SECOidData *oidData = NULL;
+
+    /*
+     * params->data needs to contain the ASN encoding of an object ID (OID)
+     * representing a named curve. Here, we strip away everything
+     * before the actual OID and use the OID to look up a named curve.
+     */
+    if (params->data[0] != SEC_ASN1_OBJECT_ID)
+        return 0;
+    oid.len = params->len - 2;
+    oid.data = params->data + 2;
+    if ((oidData = SECOID_FindOID(&oid)) == NULL)
+        return 0;
+
+    return oidData->offset;
+}