Add support for legacy PEM format private keys in EVP_PKEY_ASN1_METHOD.
[openssl.git] / crypto / pem / pem_all.c
index 5485628f52cd30112caa87e4cae0504f814a16f8..713cd172b215695ef836081352f47188c5e0c2fd 100644 (file)
@@ -1,5 +1,5 @@
 /* crypto/pem/pem_all.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
  * This package is an SSL implementation written
  * copied and put under another distribution licence
  * [including the GNU Public Licence.]
  */
+/* ====================================================================
+ * Copyright (c) 1998-2002 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
+ *    openssl-core@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 <stdio.h>
 #undef SSLEAY_MACROS
-#include "bio.h"
-#include "evp.h"
-#include "x509.h"
-#include "pkcs7.h"
-#include "pem.h"
-
-#ifndef WIN16
-/* The X509 functions */
-X509 *PEM_read_X509(fp,x,cb)
-FILE *fp;
-X509 **x;
-int (*cb)();
-       {
-       return((X509 *)PEM_ASN1_read((char *(*)())d2i_X509,
-               PEM_STRING_X509,fp,(char **)x,cb));
-       }
+#include "cryptlib.h"
+#include <openssl/bio.h>
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+#include <openssl/pkcs7.h>
+#include <openssl/pem.h>
+#ifndef OPENSSL_NO_RSA
+#include <openssl/rsa.h>
 #endif
-
-X509 *PEM_read_bio_X509(bp,x,cb)
-BIO *bp;
-X509 **x;
-int (*cb)();
-       {
-       return((X509 *)PEM_ASN1_read_bio((char *(*)())d2i_X509,
-               PEM_STRING_X509,bp,(char **)x,cb));
-       }
-
-#ifndef WIN16
-int PEM_write_X509(fp,x)
-FILE *fp;
-X509 *x;
-       {
-       return(PEM_ASN1_write((int (*)())i2d_X509,PEM_STRING_X509,fp,
-               (char *)x, NULL,NULL,0,NULL));
-       }
+#ifndef OPENSSL_NO_DSA
+#include <openssl/dsa.h>
 #endif
-
-int PEM_write_bio_X509(bp,x)
-BIO *bp;
-X509 *x;
-       {
-       return(PEM_ASN1_write_bio((int (*)())i2d_X509,PEM_STRING_X509,bp,
-               (char *)x, NULL,NULL,0,NULL));
-       }
-
-#ifndef WIN16
-/* The X509_REQ functions */
-X509_REQ *PEM_read_X509_REQ(fp,x,cb)
-FILE *fp;
-X509_REQ **x;
-int (*cb)();
-       {
-       return((X509_REQ *)PEM_ASN1_read((char *(*)())d2i_X509_REQ,
-               PEM_STRING_X509_REQ,fp,(char **)x,cb));
-       }
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
 #endif
 
-X509_REQ *PEM_read_bio_X509_REQ(bp,x,cb)
-BIO *bp;
-X509_REQ **x;
-int (*cb)();
-       {
-       return((X509_REQ *)PEM_ASN1_read_bio((char *(*)())d2i_X509_REQ,
-               PEM_STRING_X509_REQ,bp,(char **)x,cb));
-       }
-
-#ifndef WIN16
-int PEM_write_X509_REQ(fp,x)
-FILE *fp;
-X509_REQ *x;
-       {
-       return(PEM_ASN1_write((int (*)())i2d_X509_REQ,PEM_STRING_X509_REQ,fp,
-               (char *)x, NULL,NULL,0,NULL));
-       }
+#ifndef OPENSSL_NO_RSA
+static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa);
 #endif
-
-int PEM_write_bio_X509_REQ(bp,x)
-BIO *bp;
-X509_REQ *x;
-       {
-       return(PEM_ASN1_write_bio((int (*)())i2d_X509_REQ,PEM_STRING_X509_REQ,
-               bp,(char *)x, NULL,NULL,0,NULL));
-       }
-
-#ifndef WIN16
-/* The X509_CRL functions */
-X509_CRL *PEM_read_X509_CRL(fp,x,cb)
-FILE *fp;
-X509_CRL **x;
-int (*cb)();
-       {
-       return((X509_CRL *)PEM_ASN1_read((char *(*)())d2i_X509_CRL,
-               PEM_STRING_X509_CRL,fp,(char **)x,cb));
-       }
+#ifndef OPENSSL_NO_DSA
+static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa);
 #endif
 
-X509_CRL *PEM_read_bio_X509_CRL(bp,x,cb)
-BIO *bp;
-X509_CRL **x;
-int (*cb)();
-       {
-       return((X509_CRL *)PEM_ASN1_read_bio((char *(*)())d2i_X509_CRL,
-               PEM_STRING_X509_CRL,bp,(char **)x,cb));
-       }
-
-#ifndef WIN16
-int PEM_write_X509_CRL(fp,x)
-FILE *fp;
-X509_CRL *x;
-       {
-       return(PEM_ASN1_write((int (*)())i2d_X509_CRL,PEM_STRING_X509_CRL,fp,
-               (char *)x, NULL,NULL,0,NULL));
-       }
+#ifndef OPENSSL_NO_EC
+static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey);
 #endif
 
-int PEM_write_bio_X509_CRL(bp,x)
-BIO *bp;
-X509_CRL *x;
-       {
-       return(PEM_ASN1_write_bio((int (*)())i2d_X509_CRL,PEM_STRING_X509_CRL,
-               bp,(char *)x, NULL,NULL,0,NULL));
-       }
+IMPLEMENT_PEM_rw(X509_REQ, X509_REQ, PEM_STRING_X509_REQ, X509_REQ)
 
-#ifndef NO_RSA
-#ifndef WIN16
-/* The RSAPrivateKey functions */
-RSA *PEM_read_RSAPrivateKey(fp,x,cb)
-FILE *fp;
-RSA **x;
-int (*cb)();
-       {
-       return((RSA *)PEM_ASN1_read((char *(*)())d2i_RSAPrivateKey,
-               PEM_STRING_RSA,fp,(char **)x,cb));
-       }
+IMPLEMENT_PEM_write(X509_REQ_NEW, X509_REQ, PEM_STRING_X509_REQ_OLD, X509_REQ)
 
-RSA *PEM_read_RSAPublicKey(fp,x,cb)
-FILE *fp;
-RSA **x;
-int (*cb)();
-       {
-       return((RSA *)PEM_ASN1_read((char *(*)())d2i_RSAPublicKey,
-               PEM_STRING_RSA_PUBLIC,fp,(char **)x,cb));
-       }
-#endif
+IMPLEMENT_PEM_rw(X509_CRL, X509_CRL, PEM_STRING_X509_CRL, X509_CRL)
 
-RSA *PEM_read_bio_RSAPrivateKey(bp,x,cb)
-BIO *bp;
-RSA **x;
-int (*cb)();
-       {
-       return((RSA *)PEM_ASN1_read_bio((char *(*)())d2i_RSAPrivateKey,
-               PEM_STRING_RSA,bp,(char **)x,cb));
-       }
+IMPLEMENT_PEM_rw(PKCS7, PKCS7, PEM_STRING_PKCS7, PKCS7)
 
-RSA *PEM_read_bio_RSAPublicKey(bp,x,cb)
-BIO *bp;
-RSA **x;
-int (*cb)();
-       {
-       return((RSA *)PEM_ASN1_read_bio((char *(*)())d2i_RSAPublicKey,
-               PEM_STRING_RSA_PUBLIC,bp,(char **)x,cb));
-       }
+IMPLEMENT_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE,
+                                       PEM_STRING_X509, NETSCAPE_CERT_SEQUENCE)
 
-#ifndef WIN16
-int PEM_write_RSAPrivateKey(fp,x,enc,kstr,klen,cb)
-FILE *fp;
-RSA *x;
-EVP_CIPHER *enc;
-unsigned char *kstr;
-int klen;
-int (*cb)();
-       {
-       return(PEM_ASN1_write((int (*)())i2d_RSAPrivateKey,PEM_STRING_RSA,fp,
-               (char *)x,enc,kstr,klen,cb));
-       }
 
-int PEM_write_RSAPublicKey(fp,x)
-FILE *fp;
-RSA *x;
-       {
-       return(PEM_ASN1_write((int (*)())i2d_RSAPublicKey,
-               PEM_STRING_RSA_PUBLIC,fp,
-               (char *)x,NULL,NULL,0,NULL));
-       }
-#endif
-
-int PEM_write_bio_RSAPrivateKey(bp,x,enc,kstr,klen,cb)
-BIO *bp;
-RSA *x;
-EVP_CIPHER *enc;
-unsigned char *kstr;
-int klen;
-int (*cb)();
-       {
-       return(PEM_ASN1_write_bio((int (*)())i2d_RSAPrivateKey,PEM_STRING_RSA,
-               bp,(char *)x,enc,kstr,klen,cb));
-       }
+#ifndef OPENSSL_NO_RSA
 
-int PEM_write_bio_RSAPublicKey(bp,x)
-BIO *bp;
-RSA *x;
-       {
-       return(PEM_ASN1_write_bio((int (*)())i2d_RSAPublicKey,
-               PEM_STRING_RSA_PUBLIC,
-               bp,(char *)x,NULL,NULL,0,NULL));
-       }
-#endif /* !NO_RSA */
-
-#ifndef NO_DSA
-#ifndef WIN16
-/* The DSAPrivateKey functions */
-DSA *PEM_read_DSAPrivateKey(fp,x,cb)
-FILE *fp;
-DSA **x;
-int (*cb)();
-       {
-       return((DSA *)PEM_ASN1_read((char *(*)())d2i_DSAPrivateKey,
-               PEM_STRING_DSA,fp,(char **)x,cb));
-       }
-#endif
+/* We treat RSA or DSA private keys as a special case.
+ *
+ * For private keys we read in an EVP_PKEY structure with
+ * PEM_read_bio_PrivateKey() and extract the relevant private
+ * key: this means can handle "traditional" and PKCS#8 formats
+ * transparently.
+ */
 
-DSA *PEM_read_bio_DSAPrivateKey(bp,x,cb)
-BIO *bp;
-DSA **x;
-int (*cb)();
-       {
-       return((DSA *)PEM_ASN1_read_bio((char *(*)())d2i_DSAPrivateKey,
-               PEM_STRING_DSA,bp,(char **)x,cb));
-       }
+static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa)
+{
+       RSA *rtmp;
+       if(!key) return NULL;
+       rtmp = EVP_PKEY_get1_RSA(key);
+       EVP_PKEY_free(key);
+       if(!rtmp) return NULL;
+       if(rsa) {
+               RSA_free(*rsa);
+               *rsa = rtmp;
+       }
+       return rtmp;
+}
+
+RSA *PEM_read_bio_RSAPrivateKey(BIO *bp, RSA **rsa, pem_password_cb *cb,
+                                                               void *u)
+{
+       EVP_PKEY *pktmp;
+       pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
+       return pkey_get_rsa(pktmp, rsa);
+}
+
+#ifndef OPENSSL_NO_FP_API
+
+RSA *PEM_read_RSAPrivateKey(FILE *fp, RSA **rsa, pem_password_cb *cb,
+                                                               void *u)
+{
+       EVP_PKEY *pktmp;
+       pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
+       return pkey_get_rsa(pktmp, rsa);
+}
 
-#ifndef WIN16
-int PEM_write_DSAPrivateKey(fp,x,enc,kstr,klen,cb)
-FILE *fp;
-DSA *x;
-EVP_CIPHER *enc;
-unsigned char *kstr;
-int klen;
-int (*cb)();
-       {
-       return(PEM_ASN1_write((int (*)())i2d_DSAPrivateKey,PEM_STRING_DSA,fp,
-               (char *)x,enc,kstr,klen,cb));
-       }
 #endif
 
-int PEM_write_bio_DSAPrivateKey(bp,x,enc,kstr,klen,cb)
-BIO *bp;
-DSA *x;
-EVP_CIPHER *enc;
-unsigned char *kstr;
-int klen;
-int (*cb)();
-       {
-       return(PEM_ASN1_write_bio((int (*)())i2d_DSAPrivateKey,PEM_STRING_DSA,
-               bp,(char *)x,enc,kstr,klen,cb));
-       }
-#endif
+IMPLEMENT_PEM_write_cb_const(RSAPrivateKey, RSA, PEM_STRING_RSA, RSAPrivateKey)
+IMPLEMENT_PEM_rw_const(RSAPublicKey, RSA, PEM_STRING_RSA_PUBLIC, RSAPublicKey)
+IMPLEMENT_PEM_rw(RSA_PUBKEY, RSA, PEM_STRING_PUBLIC, RSA_PUBKEY)
 
-#ifndef WIN16
-/* The PrivateKey functions */
-EVP_PKEY *PEM_read_PrivateKey(fp,x,cb)
-FILE *fp;
-EVP_PKEY **x;
-int (*cb)();
-       {
-       return((EVP_PKEY *)PEM_ASN1_read((char *(*)())d2i_PrivateKey,
-               PEM_STRING_EVP_PKEY,fp,(char **)x,cb));
-       }
 #endif
 
-EVP_PKEY *PEM_read_bio_PrivateKey(bp,x,cb)
-BIO *bp;
-EVP_PKEY **x;
-int (*cb)();
-       {
-       return((EVP_PKEY *)PEM_ASN1_read_bio((char *(*)())d2i_PrivateKey,
-               PEM_STRING_EVP_PKEY,bp,(char **)x,cb));
-       }
+#ifndef OPENSSL_NO_DSA
+
+static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa)
+{
+       DSA *dtmp;
+       if(!key) return NULL;
+       dtmp = EVP_PKEY_get1_DSA(key);
+       EVP_PKEY_free(key);
+       if(!dtmp) return NULL;
+       if(dsa) {
+               DSA_free(*dsa);
+               *dsa = dtmp;
+       }
+       return dtmp;
+}
+
+DSA *PEM_read_bio_DSAPrivateKey(BIO *bp, DSA **dsa, pem_password_cb *cb,
+                                                               void *u)
+{
+       EVP_PKEY *pktmp;
+       pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
+       return pkey_get_dsa(pktmp, dsa);        /* will free pktmp */
+}
+
+IMPLEMENT_PEM_write_cb_const(DSAPrivateKey, DSA, PEM_STRING_DSA, DSAPrivateKey)
+IMPLEMENT_PEM_rw(DSA_PUBKEY, DSA, PEM_STRING_PUBLIC, DSA_PUBKEY)
+
+#ifndef OPENSSL_NO_FP_API
+
+DSA *PEM_read_DSAPrivateKey(FILE *fp, DSA **dsa, pem_password_cb *cb,
+                                                               void *u)
+{
+       EVP_PKEY *pktmp;
+       pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
+       return pkey_get_dsa(pktmp, dsa);        /* will free pktmp */
+}
 
-#ifndef WIN16
-int PEM_write_PrivateKey(fp,x,enc,kstr,klen,cb)
-FILE *fp;
-EVP_PKEY *x;
-EVP_CIPHER *enc;
-unsigned char *kstr;
-int klen;
-int (*cb)();
-       {
-       return(PEM_ASN1_write((int (*)())i2d_PrivateKey,
-               ((x->type == EVP_PKEY_DSA)?PEM_STRING_DSA:PEM_STRING_RSA),
-               fp,(char *)x,enc,kstr,klen,cb));
-       }
 #endif
 
-int PEM_write_bio_PrivateKey(bp,x,enc,kstr,klen,cb)
-BIO *bp;
-EVP_PKEY *x;
-EVP_CIPHER *enc;
-unsigned char *kstr;
-int klen;
-int (*cb)();
-       {
-       return(PEM_ASN1_write_bio((int (*)())i2d_PrivateKey,
-               ((x->type == EVP_PKEY_DSA)?PEM_STRING_DSA:PEM_STRING_RSA),
-               bp,(char *)x,enc,kstr,klen,cb));
-       }
+IMPLEMENT_PEM_rw_const(DSAparams, DSA, PEM_STRING_DSAPARAMS, DSAparams)
 
-#ifndef WIN16
-/* The PKCS7 functions */
-PKCS7 *PEM_read_PKCS7(fp,x,cb)
-FILE *fp;
-PKCS7 **x;
-int (*cb)();
-       {
-       return((PKCS7 *)PEM_ASN1_read((char *(*)())d2i_PKCS7,
-               PEM_STRING_PKCS7,fp,(char **)x,cb));
-       }
 #endif
 
-PKCS7 *PEM_read_bio_PKCS7(bp,x,cb)
-BIO *bp;
-PKCS7 **x;
-int (*cb)();
-       {
-       return((PKCS7 *)PEM_ASN1_read_bio((char *(*)())d2i_PKCS7,
-               PEM_STRING_PKCS7,bp,(char **)x,cb));
-       }
 
-#ifndef WIN16
-int PEM_write_PKCS7(fp,x)
-FILE *fp;
-PKCS7 *x;
+#ifndef OPENSSL_NO_EC
+static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey)
+{
+       EC_KEY *dtmp;
+       if(!key) return NULL;
+       dtmp = EVP_PKEY_get1_EC_KEY(key);
+       EVP_PKEY_free(key);
+       if(!dtmp) return NULL;
+       if(eckey) 
        {
-       return(PEM_ASN1_write((int (*)())i2d_PKCS7,PEM_STRING_PKCS7,fp,
-               (char *)x, NULL,NULL,0,NULL));
+               EC_KEY_free(*eckey);
+               *eckey = dtmp;
        }
-#endif
+       return dtmp;
+}
 
-int PEM_write_bio_PKCS7(bp,x)
-BIO *bp;
-PKCS7 *x;
-       {
-       return(PEM_ASN1_write_bio((int (*)())i2d_PKCS7,PEM_STRING_PKCS7,bp,
-               (char *)x, NULL,NULL,0,NULL));
-       }
+EC_KEY *PEM_read_bio_ECPrivateKey(BIO *bp, EC_KEY **key, pem_password_cb *cb,
+                                                       void *u)
+{
+       EVP_PKEY *pktmp;
+       pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
+       return pkey_get_eckey(pktmp, key);      /* will free pktmp */
+}
 
-#ifndef NO_DH
-#ifndef WIN16
-/* The DHparams functions */
-DH *PEM_read_DHparams(fp,x,cb)
-FILE *fp;
-DH **x;
-int (*cb)();
-       {
-       return((DH *)PEM_ASN1_read((char *(*)())d2i_DHparams,
-               PEM_STRING_DHPARAMS,fp,(char **)x,cb));
-       }
-#endif
+IMPLEMENT_PEM_rw_const(ECPKParameters, EC_GROUP, PEM_STRING_ECPARAMETERS, ECPKParameters)
 
-DH *PEM_read_bio_DHparams(bp,x,cb)
-BIO *bp;
-DH **x;
-int (*cb)();
-       {
-       return((DH *)PEM_ASN1_read_bio((char *(*)())d2i_DHparams,
-               PEM_STRING_DHPARAMS,bp,(char **)x,cb));
-       }
+IMPLEMENT_PEM_write_cb(ECPrivateKey, EC_KEY, PEM_STRING_ECPRIVATEKEY, ECPrivateKey)
 
-#ifndef WIN16
-int PEM_write_DHparams(fp,x)
-FILE *fp;
-DH *x;
-       {
-       return(PEM_ASN1_write((int (*)())i2d_DHparams,PEM_STRING_DHPARAMS,fp,
-               (char *)x, NULL,NULL,0,NULL));
-       }
-#endif
+IMPLEMENT_PEM_rw(EC_PUBKEY, EC_KEY, PEM_STRING_PUBLIC, EC_PUBKEY)
+
+#ifndef OPENSSL_NO_FP_API
+EC_KEY *PEM_read_ECPrivateKey(FILE *fp, EC_KEY **eckey, pem_password_cb *cb,
+                                                               void *u)
+{
+       EVP_PKEY *pktmp;
+       pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
+       return pkey_get_eckey(pktmp, eckey);    /* will free pktmp */
+}
 
-int PEM_write_bio_DHparams(bp,x)
-BIO *bp;
-DH *x;
-       {
-       return(PEM_ASN1_write_bio((int (*)())i2d_DHparams,PEM_STRING_DHPARAMS,
-               bp,(char *)x, NULL,NULL,0,NULL));
-       }
 #endif
 
-#ifndef NO_DSA
-#ifndef WIN16
-/* The DSAparams functions */
-DSA *PEM_read_DSAparams(fp,x,cb)
-FILE *fp;
-DSA **x;
-int (*cb)();
-       {
-       return((DSA *)PEM_ASN1_read((char *(*)())d2i_DSAparams,
-               PEM_STRING_DSAPARAMS,fp,(char **)x,cb));
-       }
 #endif
 
-DSA *PEM_read_bio_DSAparams(bp,x,cb)
-BIO *bp;
-DSA **x;
-int (*cb)();
-       {
-       return((DSA *)PEM_ASN1_read_bio((char *(*)())d2i_DSAparams,
-               PEM_STRING_DSAPARAMS,bp,(char **)x,cb));
-       }
+#ifndef OPENSSL_NO_DH
 
-#ifndef WIN16
-int PEM_write_DSAparams(fp,x)
-FILE *fp;
-DSA *x;
-       {
-       return(PEM_ASN1_write((int (*)())i2d_DSAparams,PEM_STRING_DSAPARAMS,fp,
-               (char *)x, NULL,NULL,0,NULL));
-       }
-#endif
+IMPLEMENT_PEM_rw_const(DHparams, DH, PEM_STRING_DHPARAMS, DHparams)
 
-int PEM_write_bio_DSAparams(bp,x)
-BIO *bp;
-DSA *x;
-       {
-       return(PEM_ASN1_write_bio((int (*)())i2d_DSAparams,PEM_STRING_DSAPARAMS,
-               bp,(char *)x, NULL,NULL,0,NULL));
-       }
 #endif
 
+IMPLEMENT_PEM_rw(PUBKEY, EVP_PKEY, PEM_STRING_PUBLIC, PUBKEY)