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@@ -0,0 +1,291 @@
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+/* evp_pkey.c */
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+/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
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+ * project 1999.
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+ */
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+/* ====================================================================
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+ * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
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+ *
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+ * Redistribution and use in source and binary forms, with or without
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+ * modification, are permitted provided that the following conditions
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+ * are met:
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+ *
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+ * 1. Redistributions of source code must retain the above copyright
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+ * notice, this list of conditions and the following disclaimer.
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+ *
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+ * 2. Redistributions in binary form must reproduce the above copyright
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+ * notice, this list of conditions and the following disclaimer in
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+ * the documentation and/or other materials provided with the
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+ * distribution.
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+ *
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+ * 3. All advertising materials mentioning features or use of this
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+ * software must display the following acknowledgment:
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+ * "This product includes software developed by the OpenSSL Project
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+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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+ *
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+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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+ * endorse or promote products derived from this software without
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+ * prior written permission. For written permission, please contact
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+ * licensing@OpenSSL.org.
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+ *
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+ * 5. Products derived from this software may not be called "OpenSSL"
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+ * nor may "OpenSSL" appear in their names without prior written
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+ * permission of the OpenSSL Project.
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+ *
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+ * 6. Redistributions of any form whatsoever must retain the following
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+ * acknowledgment:
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+ * "This product includes software developed by the OpenSSL Project
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+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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+ * OF THE POSSIBILITY OF SUCH DAMAGE.
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+ * ====================================================================
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+ *
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+ * This product includes cryptographic software written by Eric Young
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+ * (eay@cryptsoft.com). This product includes software written by Tim
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+ * Hudson (tjh@cryptsoft.com).
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+ *
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+ */
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+
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include "cryptlib.h"
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+#include "x509.h"
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+#include "rand.h"
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+
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+/* Extract a private key from a PKCS8 structure */
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+
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+EVP_PKEY *EVP_PKCS82PKEY (p8)
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+PKCS8_PRIV_KEY_INFO *p8;
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+{
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+ EVP_PKEY *pkey;
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+ RSA *rsa;
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+ DSA *dsa;
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+ ASN1_INTEGER *dsapriv;
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+ X509_ALGOR *a;
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+ STACK *ndsa;
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+ BN_CTX *ctx;
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+ unsigned char *p;
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+ int plen, pkeylen;
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+ char obj_tmp[80];
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+
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+ switch (p8->broken) {
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+ case PKCS8_OK:
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+ p = p8->pkey->value.octet_string->data;
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+ pkeylen = p8->pkey->value.octet_string->length;
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+ break;
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+
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+ case PKCS8_NO_OCTET:
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+ p = p8->pkey->value.sequence->data;
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+ pkeylen = p8->pkey->value.sequence->length;
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+ break;
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+
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+ default:
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+ EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
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+ return NULL;
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+ break;
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+ }
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+ if (!(pkey = EVP_PKEY_new())) {
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+ EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
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+ return NULL;
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+ }
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+ a = p8->pkeyalg;
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+ switch (OBJ_obj2nid(a->algorithm))
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+ {
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+ case NID_rsaEncryption:
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+ if (!(rsa = d2i_RSAPrivateKey (NULL, &p, pkeylen))) {
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+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
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+ return NULL;
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+ }
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+ EVP_PKEY_assign_RSA (pkey, rsa);
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+ break;
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+
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+ case NID_dsa:
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+ /* PKCS#8 DSA is weird: you just get a private key integer
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+ * and parameters in the AlgorithmIdentifier the pubkey must
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+ * be recalculated.
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+ */
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+
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+ /* Check for broken Netscape Database DSA PKCS#8, UGH! */
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+ if(*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) {
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+ if(!(ndsa = ASN1_seq_unpack(p, pkeylen,
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+ (char *(*)())d2i_ASN1_INTEGER,
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+ ASN1_STRING_free))) {
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+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
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+ return NULL;
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+ }
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+ if(sk_num(ndsa) != 2 ) {
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+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
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+ sk_pop_free(ndsa, ASN1_STRING_free);
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+ return NULL;
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+ }
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+ dsapriv = (ASN1_INTEGER *) sk_pop(ndsa);
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+ sk_pop_free(ndsa, ASN1_STRING_free);
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+ } else if (!(dsapriv=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
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+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
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+ return NULL;
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+ }
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+ /* Retrieve parameters */
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+ if (a->parameter->type != V_ASN1_SEQUENCE) {
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+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_NO_DSA_PARAMETERS);
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+ return NULL;
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+ }
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+ p = a->parameter->value.sequence->data;
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+ plen = a->parameter->value.sequence->length;
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+ if (!(dsa = d2i_DSAparams (NULL, &p, plen))) {
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+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
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+ return NULL;
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+ }
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+ /* We have parameters now set private key */
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+ if (!(dsa->priv_key = ASN1_INTEGER_to_BN(dsapriv, NULL))) {
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+ EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_DECODE_ERROR);
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+ DSA_free (dsa);
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+ return NULL;
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+ }
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+ /* Calculate public key (ouch!) */
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+ if (!(dsa->pub_key = BN_new())) {
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+ EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
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+ DSA_free (dsa);
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+ return NULL;
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+ }
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+ if (!(ctx = BN_CTX_new())) {
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+ EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
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+ DSA_free (dsa);
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+ return NULL;
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+ }
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+
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+ if (!BN_mod_exp(dsa->pub_key, dsa->g,
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+ dsa->priv_key, dsa->p, ctx)) {
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+
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+ EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_PUBKEY_ERROR);
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+ BN_CTX_free (ctx);
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+ DSA_free (dsa);
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+ return NULL;
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+ }
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+
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+ EVP_PKEY_assign_DSA (pkey, dsa);
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+ BN_CTX_free (ctx);
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+ break;
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+
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+ default:
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+ EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
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+ if (!a->algorithm) strcpy (obj_tmp, "NULL");
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+ else i2t_ASN1_OBJECT(obj_tmp, 80, a->algorithm);
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+ ERR_add_error_data(2, "TYPE=", obj_tmp);
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+ EVP_PKEY_free (pkey);
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+ return NULL;
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+ }
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+ return pkey;
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+}
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+
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+/* Turn a private key into a PKCS8 structure */
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+
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+PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(pkey)
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+EVP_PKEY *pkey;
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+{
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+ PKCS8_PRIV_KEY_INFO *p8;
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+ ASN1_INTEGER *dpkey;
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+ unsigned char *p, *q;
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+ int len;
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+ if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {
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+ EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
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+ return NULL;
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+ }
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+ ASN1_INTEGER_set (p8->version, 0);
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+ if (!(p8->pkeyalg->parameter = ASN1_TYPE_new ())) {
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+ EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
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+ PKCS8_PRIV_KEY_INFO_free (p8);
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+ return NULL;
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+ }
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+ switch (EVP_PKEY_type(pkey->type)) {
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+ case EVP_PKEY_RSA:
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+
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+ p8->pkeyalg->algorithm = OBJ_nid2obj(NID_rsaEncryption);
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+ p8->pkeyalg->parameter->type = V_ASN1_NULL;
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+ if (!ASN1_pack_string ((char *)pkey, i2d_PrivateKey,
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+ &p8->pkey->value.octet_string)) {
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+ EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
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+ PKCS8_PRIV_KEY_INFO_free (p8);
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+ return NULL;
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+ }
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+ break;
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+
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+ case EVP_PKEY_DSA:
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+ p8->pkeyalg->algorithm = OBJ_nid2obj(NID_dsa);
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+
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+ /* get paramaters and place in AlgorithmIdentifier */
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+ len = i2d_DSAparams (pkey->pkey.dsa, NULL);
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+ if (!(p = Malloc(len))) {
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+ EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
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+ PKCS8_PRIV_KEY_INFO_free (p8);
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+ return NULL;
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+ }
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+ q = p;
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+ i2d_DSAparams (pkey->pkey.dsa, &q);
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+ p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
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+ p8->pkeyalg->parameter->value.sequence = ASN1_STRING_new();
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+ ASN1_STRING_set(p8->pkeyalg->parameter->value.sequence, p, len);
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+ Free(p);
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+ /* Get private key into an integer and pack */
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+ if (!(dpkey = BN_to_ASN1_INTEGER (pkey->pkey.dsa->priv_key, NULL))) {
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+ EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
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+ PKCS8_PRIV_KEY_INFO_free (p8);
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+ return NULL;
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+ }
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+
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+ if (!ASN1_pack_string((char *)dpkey, i2d_ASN1_INTEGER,
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+ &p8->pkey->value.octet_string)) {
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+ EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
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+ ASN1_INTEGER_free (dpkey);
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+ PKCS8_PRIV_KEY_INFO_free (p8);
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+ return NULL;
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+ }
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+ ASN1_INTEGER_free (dpkey);
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+ break;
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+
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+ default:
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+ EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
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+ PKCS8_PRIV_KEY_INFO_free (p8);
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+ return NULL;
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+ }
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+ p8->pkey->type = V_ASN1_OCTET_STRING;
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+ RAND_seed (p8->pkey->value.octet_string->data,
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+ p8->pkey->value.octet_string->length);
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+ return p8;
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+}
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+
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+PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(p8, broken)
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+PKCS8_PRIV_KEY_INFO *p8;
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+int broken;
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+{
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+ switch (broken) {
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+
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+ case PKCS8_OK:
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+ p8->broken = PKCS8_OK;
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+ return p8;
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+ break;
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+
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+ case PKCS8_NO_OCTET:
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+ p8->broken = PKCS8_NO_OCTET;
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+ p8->pkey->type = V_ASN1_SEQUENCE;
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+ return p8;
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+ break;
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+
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+ default:
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+ EVPerr(EVP_F_EVP_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
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+ return NULL;
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+ break;
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+
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+ }
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+}
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+
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+
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