SECKEYPrivateKey*
CryptoKey::PrivateKeyFromJwk(const JsonWebKey& aJwk,
const nsNSSShutDownPreventionLock& /*proofOfLock*/)
{
if (!aJwk.mKty.WasPassed() || !aJwk.mKty.Value().EqualsLiteral(JWK_TYPE_RSA)) {
return nullptr;
}
// Verify that all of the required parameters are present
CryptoBuffer n, e, d, p, q, dp, dq, qi;
if (!aJwk.mN.WasPassed() || NS_FAILED(n.FromJwkBase64(aJwk.mN.Value())) ||
!aJwk.mE.WasPassed() || NS_FAILED(e.FromJwkBase64(aJwk.mE.Value())) ||
!aJwk.mD.WasPassed() || NS_FAILED(d.FromJwkBase64(aJwk.mD.Value())) ||
!aJwk.mP.WasPassed() || NS_FAILED(p.FromJwkBase64(aJwk.mP.Value())) ||
!aJwk.mQ.WasPassed() || NS_FAILED(q.FromJwkBase64(aJwk.mQ.Value())) ||
!aJwk.mDp.WasPassed() || NS_FAILED(dp.FromJwkBase64(aJwk.mDp.Value())) ||
!aJwk.mDq.WasPassed() || NS_FAILED(dq.FromJwkBase64(aJwk.mDq.Value())) ||
!aJwk.mQi.WasPassed() || NS_FAILED(qi.FromJwkBase64(aJwk.mQi.Value()))) {
return nullptr;
}
// Compute the ID for this key
// This is generated with a SHA-1 hash, so unlikely to collide
ScopedSECItem nItem(n.ToSECItem());
ScopedSECItem objID(PK11_MakeIDFromPubKey(nItem.get()));
if (!nItem.get() || !objID.get()) {
return nullptr;
}
// Populate template from parameters
CK_OBJECT_CLASS privateKeyValue = CKO_PRIVATE_KEY;
CK_KEY_TYPE rsaValue = CKK_RSA;
CK_BBOOL falseValue = CK_FALSE;
CK_ATTRIBUTE keyTemplate[14] = {
{ CKA_CLASS, &privateKeyValue, sizeof(privateKeyValue) },
{ CKA_KEY_TYPE, &rsaValue, sizeof(rsaValue) },
{ CKA_TOKEN, &falseValue, sizeof(falseValue) },
{ CKA_SENSITIVE, &falseValue, sizeof(falseValue) },
{ CKA_PRIVATE, &falseValue, sizeof(falseValue) },
{ CKA_ID, objID->data, objID->len },
{ CKA_MODULUS, (void*) n.Elements(), n.Length() },
{ CKA_PUBLIC_EXPONENT, (void*) e.Elements(), e.Length() },
{ CKA_PRIVATE_EXPONENT, (void*) d.Elements(), d.Length() },
{ CKA_PRIME_1, (void*) p.Elements(), p.Length() },
{ CKA_PRIME_2, (void*) q.Elements(), q.Length() },
{ CKA_EXPONENT_1, (void*) dp.Elements(), dp.Length() },
{ CKA_EXPONENT_2, (void*) dq.Elements(), dq.Length() },
{ CKA_COEFFICIENT, (void*) qi.Elements(), qi.Length() },
};
// Create a generic object with the contents of the key
ScopedPK11SlotInfo slot(PK11_GetInternalSlot());
if (!slot.get()) {
return nullptr;
}
ScopedPK11GenericObject obj(PK11_CreateGenericObject(slot.get(),
keyTemplate,
PR_ARRAY_SIZE(keyTemplate),
PR_FALSE));
if (!obj.get()) {
return nullptr;
}
// Have NSS translate the object to a private key by inspection
// and make a copy we can own
ScopedSECKEYPrivateKey privKey(PK11_FindKeyByKeyID(slot.get(), objID.get(),
nullptr));
if (!privKey.get()) {
return nullptr;
}
return SECKEY_CopyPrivateKey(privKey.get());
}
SECKEYPrivateKey*
CryptoKey::PrivateKeyFromJwk(const JsonWebKey& aJwk,
const nsNSSShutDownPreventionLock& /*proofOfLock*/)
{
if (!aJwk.mKty.WasPassed()) {
return nullptr;
}
CK_OBJECT_CLASS privateKeyValue = CKO_PRIVATE_KEY;
CK_BBOOL falseValue = CK_FALSE;
if (aJwk.mKty.Value().EqualsLiteral(JWK_TYPE_EC)) {
// Verify that all of the required parameters are present
CryptoBuffer x, y, d;
if (!aJwk.mCrv.WasPassed() ||
!aJwk.mX.WasPassed() || NS_FAILED(x.FromJwkBase64(aJwk.mX.Value())) ||
!aJwk.mY.WasPassed() || NS_FAILED(y.FromJwkBase64(aJwk.mY.Value())) ||
!aJwk.mD.WasPassed() || NS_FAILED(d.FromJwkBase64(aJwk.mD.Value()))) {
return nullptr;
}
nsString namedCurve;
if (!NormalizeNamedCurveValue(aJwk.mCrv.Value(), namedCurve)) {
return nullptr;
}
ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
if (!arena) {
return nullptr;
}
// Create parameters.
SECItem* params = CreateECParamsForCurve(namedCurve, arena.get());
if (!params) {
return nullptr;
}
SECItem* ecPoint = CreateECPointForCoordinates(x, y, arena.get());
if (!ecPoint) {
return nullptr;
}
// Compute the ID for this key
// This is generated with a SHA-1 hash, so unlikely to collide
ScopedSECItem objID(PK11_MakeIDFromPubKey(ecPoint));
if (!objID.get()) {
return nullptr;
}
// Populate template from parameters
CK_KEY_TYPE ecValue = CKK_EC;
CK_ATTRIBUTE keyTemplate[9] = {
{ CKA_CLASS, &privateKeyValue, sizeof(privateKeyValue) },
{ CKA_KEY_TYPE, &ecValue, sizeof(ecValue) },
{ CKA_TOKEN, &falseValue, sizeof(falseValue) },
{ CKA_SENSITIVE, &falseValue, sizeof(falseValue) },
{ CKA_PRIVATE, &falseValue, sizeof(falseValue) },
{ CKA_ID, objID->data, objID->len },
{ CKA_EC_PARAMS, params->data, params->len },
{ CKA_EC_POINT, ecPoint->data, ecPoint->len },
{ CKA_VALUE, (void*) d.Elements(), d.Length() },
};
return PrivateKeyFromPrivateKeyTemplate(objID, keyTemplate,
PR_ARRAY_SIZE(keyTemplate));
}
if (aJwk.mKty.Value().EqualsLiteral(JWK_TYPE_RSA)) {
// Verify that all of the required parameters are present
CryptoBuffer n, e, d, p, q, dp, dq, qi;
if (!aJwk.mN.WasPassed() || NS_FAILED(n.FromJwkBase64(aJwk.mN.Value())) ||
!aJwk.mE.WasPassed() || NS_FAILED(e.FromJwkBase64(aJwk.mE.Value())) ||
!aJwk.mD.WasPassed() || NS_FAILED(d.FromJwkBase64(aJwk.mD.Value())) ||
!aJwk.mP.WasPassed() || NS_FAILED(p.FromJwkBase64(aJwk.mP.Value())) ||
!aJwk.mQ.WasPassed() || NS_FAILED(q.FromJwkBase64(aJwk.mQ.Value())) ||
!aJwk.mDp.WasPassed() || NS_FAILED(dp.FromJwkBase64(aJwk.mDp.Value())) ||
!aJwk.mDq.WasPassed() || NS_FAILED(dq.FromJwkBase64(aJwk.mDq.Value())) ||
!aJwk.mQi.WasPassed() || NS_FAILED(qi.FromJwkBase64(aJwk.mQi.Value()))) {
return nullptr;
}
// Compute the ID for this key
// This is generated with a SHA-1 hash, so unlikely to collide
ScopedSECItem nItem(n.ToSECItem());
if (!nItem.get()) {
return nullptr;
}
ScopedSECItem objID(PK11_MakeIDFromPubKey(nItem.get()));
if (!objID.get()) {
return nullptr;
}
// Populate template from parameters
CK_KEY_TYPE rsaValue = CKK_RSA;
CK_ATTRIBUTE keyTemplate[14] = {
{ CKA_CLASS, &privateKeyValue, sizeof(privateKeyValue) },
{ CKA_KEY_TYPE, &rsaValue, sizeof(rsaValue) },
{ CKA_TOKEN, &falseValue, sizeof(falseValue) },
{ CKA_SENSITIVE, &falseValue, sizeof(falseValue) },
{ CKA_PRIVATE, &falseValue, sizeof(falseValue) },
{ CKA_ID, objID->data, objID->len },
{ CKA_MODULUS, (void*) n.Elements(), n.Length() },
{ CKA_PUBLIC_EXPONENT, (void*) e.Elements(), e.Length() },
{ CKA_PRIVATE_EXPONENT, (void*) d.Elements(), d.Length() },
{ CKA_PRIME_1, (void*) p.Elements(), p.Length() },
{ CKA_PRIME_2, (void*) q.Elements(), q.Length() },
{ CKA_EXPONENT_1, (void*) dp.Elements(), dp.Length() },
{ CKA_EXPONENT_2, (void*) dq.Elements(), dq.Length() },
{ CKA_COEFFICIENT, (void*) qi.Elements(), qi.Length() },
};
return PrivateKeyFromPrivateKeyTemplate(objID, keyTemplate,
PR_ARRAY_SIZE(keyTemplate));
}
return nullptr;
}
