import d2i_PrivateKey(3) from OpenSSL

2 files changed, 157 insertions, 1 deletions

diff --git a/lib/libcrypto/man/Makefile b/lib/libcrypto/man/Makefile
index f6c0ef249aa..29e066614f9 100644
--- a/lib/libcrypto/man/Makefile
+++ b/lib/libcrypto/man/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.66 2016/12/05 18:24:08 schwarze Exp $
+# $OpenBSD: Makefile,v 1.67 2016/12/05 20:30:12 schwarze Exp $
 
 .include <bsd.own.mk>
 
@@ -206,6 +206,7 @@ MAN=	\
 	d2i_DSAPublicKey.3 \
 	d2i_ECPKParameters.3 \
 	d2i_PKCS8PrivateKey_bio.3 \
+	d2i_PrivateKey.3 \
 	d2i_RSAPublicKey.3 \
 	d2i_X509.3 \
 	d2i_X509_ALGOR.3 \
diff --git a/lib/libcrypto/man/d2i_PrivateKey.3 b/lib/libcrypto/man/d2i_PrivateKey.3
new file mode 100644
index 00000000000..42dfe973e81
--- /dev/null
+++ b/lib/libcrypto/man/d2i_PrivateKey.3
@@ -0,0 +1,155 @@
+.\"	$OpenBSD: d2i_PrivateKey.3,v 1.1 2016/12/05 20:30:12 schwarze Exp $
+.\"	OpenSSL b97fdb57 Nov 11 09:33:09 2016 +0100
+.\"
+.\" This file was written by Dr. Stephen Henson <steve@openssl.org>.
+.\" Copyright (c) 2016 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.
+.\"
+.Dd $Mdocdate: December 5 2016 $
+.Dt D2I_PRIVATEKEY 3
+.Os
+.Sh NAME
+.Nm d2i_PrivateKey ,
+.Nm d2i_AutoPrivateKey ,
+.Nm i2d_PrivateKey ,
+.Nm d2i_PrivateKey_bio ,
+.Nm d2i_PrivateKey_fp
+.Nd decode and encode functions for reading and saving EVP_PKEY structures
+.Sh SYNOPSIS
+.In openssl/evp.h
+.Ft EVP_PKEY *
+.Fo d2i_PrivateKey
+.Fa "int type"
+.Fa "EVP_PKEY **a"
+.Fa "const unsigned char **pp"
+.Fa "long length"
+.Fc
+.Ft EVP_PKEY *
+.Fo d2i_AutoPrivateKey
+.Fa "EVP_PKEY **a"
+.Fa "const unsigned char **pp"
+.Fa "long length"
+.Fc
+.Ft int
+.Fo i2d_PrivateKey
+.Fa "EVP_PKEY *a"
+.Fa "unsigned char **pp"
+.Fc
+.Ft EVP_PKEY *
+.Fo d2i_PrivateKey_bio
+.Fa "BIO *bp"
+.Fa "EVP_PKEY **a"
+.Fc
+.Ft EVP_PKEY *
+.Fo d2i_PrivateKey_fp
+.Fa "FILE *fp"
+.Fa "EVP_PKEY **a"
+.Fc
+.Sh DESCRIPTION
+.Fn d2i_PrivateKey
+decodes a private key using algorithm
+.Fa type .
+It attempts to use any key specific format or PKCS#8 unencrypted
+PrivateKeyInfo format.
+The
+.Fa type
+parameter should be a public key algorithm constant such as
+.Dv EVP_PKEY_RSA .
+An error occurs if the decoded key does not match
+.Fa type .
+.Pp
+.Fn d2i_AutoPrivateKey
+is similar to
+.Fn d2i_PrivateKey
+except that it attempts to automatically detect the private key format.
+.Pp
+.Fn i2d_PrivateKey
+encodes
+.Fa a .
+It uses a key specific format or, if none is defined for that key type,
+PKCS#8 unencrypted PrivateKeyInfo format.
+.Pp
+These functions are similar to the
+.Xr d2i_X509 3
+functions; see
+.Xr d2i_X509 3 .
+.Pp
+All these functions use DER format and unencrypted keys.
+Applications wishing to encrypt or decrypt private keys should use other
+functions such as
+.Xr d2i_PKC8PrivateKey 3
+instead.
+.Pp
+If
+.Pf * Fa a
+is not NULL when calling
+.Fn d2i_PrivateKey
+or
+.Fn d2i_AutoPrivateKey
+(i.e. an existing structure is being reused) and the key format is
+PKCS#8, then
+.Pf * Fa a
+will be freed and replaced on a successful call.
+.Sh RETURN VALUES
+.Fn d2i_PrivateKey
+and
+.Fn d2i_AutoPrivateKey
+return a valid
+.Vt EVP_KEY
+structure or
+.Dv NULL
+if an error occurs.
+The error code can be obtained by calling
+.Xr ERR_get_error 3 .
+.Pp
+.Fn i2d_PrivateKey
+returns the number of bytes successfully encoded or a negative value if
+an error occurs.
+The error code can be obtained by calling
+.Xr ERR_get_error 3 .
+.Sh SEE ALSO
+.Xr crypto 3 ,
+.Xr d2i_PKCS8PrivateKey 3