/* $OpenBSD: p8_pkey.c,v 1.16 2015/07/16 18:21:57 miod Exp $ */ /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL * project 1999. */ /* ==================================================================== * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * licensing@OpenSSL.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ #include #include #include #include /* Minor tweak to operation: zero private key data */ static int pkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg) { /* Since the structure must still be valid use ASN1_OP_FREE_PRE */ if (operation == ASN1_OP_FREE_PRE) { PKCS8_PRIV_KEY_INFO *key = (PKCS8_PRIV_KEY_INFO *)*pval; if (key->pkey != NULL && key->pkey->type == V_ASN1_OCTET_STRING && key->pkey->value.octet_string != NULL) explicit_bzero(key->pkey->value.octet_string->data, key->pkey->value.octet_string->length); } return 1; } static const ASN1_AUX PKCS8_PRIV_KEY_INFO_aux = { .asn1_cb = pkey_cb, }; static const ASN1_TEMPLATE PKCS8_PRIV_KEY_INFO_seq_tt[] = { { .offset = offsetof(PKCS8_PRIV_KEY_INFO, version), .field_name = "version", .item = &ASN1_INTEGER_it, }, { .offset = offsetof(PKCS8_PRIV_KEY_INFO, pkeyalg), .field_name = "pkeyalg", .item = &X509_ALGOR_it, }, { .offset = offsetof(PKCS8_PRIV_KEY_INFO, pkey), .field_name = "pkey", .item = &ASN1_ANY_it, }, { .flags = ASN1_TFLG_IMPLICIT | ASN1_TFLG_SET_OF | ASN1_TFLG_OPTIONAL, .offset = offsetof(PKCS8_PRIV_KEY_INFO, attributes), .field_name = "attributes", .item = &X509_ATTRIBUTE_it, }, }; const ASN1_ITEM PKCS8_PRIV_KEY_INFO_it = { .itype = ASN1_ITYPE_SEQUENCE, .utype = V_ASN1_SEQUENCE, .templates = PKCS8_PRIV_KEY_INFO_seq_tt, .tcount = sizeof(PKCS8_PRIV_KEY_INFO_seq_tt) / sizeof(ASN1_TEMPLATE), .funcs = &PKCS8_PRIV_KEY_INFO_aux, .size = sizeof(PKCS8_PRIV_KEY_INFO), .sname = "PKCS8_PRIV_KEY_INFO", }; PKCS8_PRIV_KEY_INFO * d2i_PKCS8_PRIV_KEY_INFO(PKCS8_PRIV_KEY_INFO **a, const unsigned char **in, long len) { return (PKCS8_PRIV_KEY_INFO *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, &PKCS8_PRIV_KEY_INFO_it); } int i2d_PKCS8_PRIV_KEY_INFO(PKCS8_PRIV_KEY_INFO *a, unsigned char **out) { return ASN1_item_i2d((ASN1_VALUE *)a, out, &PKCS8_PRIV_KEY_INFO_it); } PKCS8_PRIV_KEY_INFO * PKCS8_PRIV_KEY_INFO_new(void) { return (PKCS8_PRIV_KEY_INFO *)ASN1_item_new(&PKCS8_PRIV_KEY_INFO_it); } void PKCS8_PRIV_KEY_INFO_free(PKCS8_PRIV_KEY_INFO *a) { ASN1_item_free((ASN1_VALUE *)a, &PKCS8_PRIV_KEY_INFO_it); } int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj, int version, int ptype, void *pval, unsigned char *penc, int penclen) { unsigned char **ppenc = NULL; if (version >= 0) { if (!ASN1_INTEGER_set(priv->version, version)) return 0; } if (penc) { int pmtype; ASN1_OCTET_STRING *oct; oct = ASN1_OCTET_STRING_new(); if (!oct) return 0; oct->data = penc; ppenc = &oct->data; oct->length = penclen; if (priv->broken == PKCS8_NO_OCTET) pmtype = V_ASN1_SEQUENCE; else pmtype = V_ASN1_OCTET_STRING; ASN1_TYPE_set(priv->pkey, pmtype, oct); } if (!X509_ALGOR_set0(priv->pkeyalg, aobj, ptype, pval)) { /* If call fails do not swallow 'enc' */ if (ppenc) *ppenc = NULL; return 0; } return 1; } int PKCS8_pkey_get0(ASN1_OBJECT **ppkalg, const unsigned char **pk, int *ppklen, X509_ALGOR **pa, PKCS8_PRIV_KEY_INFO *p8) { if (ppkalg) *ppkalg = p8->pkeyalg->algorithm; if (p8->pkey->type == V_ASN1_OCTET_STRING) { p8->broken = PKCS8_OK; if (pk) { *pk = p8->pkey->value.octet_string->data; *ppklen = p8->pkey->value.octet_string->length; } } else if (p8->pkey->type == V_ASN1_SEQUENCE) { p8->broken = PKCS8_NO_OCTET; if (pk) { *pk = p8->pkey->value.sequence->data; *ppklen = p8->pkey->value.sequence->length; } } else return 0; if (pa) *pa = p8->pkeyalg; return 1; }