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x509_csr.h File Reference
Data Structures | Functions

x509_csr.h File Reference

X.509 certificate signing request parsing and writing. More...

Go to the source code of this file.

Data Structures

struct  _x509_csr
 Certificate Signing Request (CSR) structure. More...
struct  _x509write_csr
 Container for writing a CSR. More...

Functions

void x509write_csr_init (x509write_csr *ctx)
 Initialize a CSR context.
int x509write_csr_set_subject_name (x509write_csr *ctx, const char *subject_name)
 Set the subject name for a CSR Subject names should contain a comma-separated list of OID types and values: e.g.
void x509write_csr_set_key (x509write_csr *ctx, pk_context *key)
 Set the key for a CSR (public key will be included, private key used to sign the CSR when writing it)
void x509write_csr_set_md_alg (x509write_csr *ctx, md_type_t md_alg)
 Set the MD algorithm to use for the signature (e.g.
int x509write_csr_set_key_usage (x509write_csr *ctx, unsigned char key_usage)
 Set the Key Usage Extension flags (e.g.
int x509write_csr_set_ns_cert_type (x509write_csr *ctx, unsigned char ns_cert_type)
 Set the Netscape Cert Type flags (e.g.
int x509write_csr_set_extension (x509write_csr *ctx, const char *oid, size_t oid_len, const unsigned char *val, size_t val_len)
 Generic function to add to or replace an extension in the CSR.
void x509write_csr_free (x509write_csr *ctx)
 Free the contents of a CSR context.
int x509write_csr_der (x509write_csr *ctx, unsigned char *buf, size_t size, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 Write a CSR (Certificate Signing Request) to a DER structure Note: data is written at the end of the buffer! Use the return value to determine where you should start using the buffer.
int x509write_csr_pem (x509write_csr *ctx, unsigned char *buf, size_t size, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 Write a CSR (Certificate Signing Request) to a PEM string.

Structures and functions for X.509 Certificate Signing Requests (CSR)

typedef struct _x509_csr x509_csr
 Certificate Signing Request (CSR) structure.
typedef struct _x509write_csr x509write_csr
 Container for writing a CSR.
int x509_csr_parse (x509_csr *csr, const unsigned char *buf, size_t buflen)
 Load a Certificate Signing Request (CSR)
int x509_csr_parse_file (x509_csr *csr, const char *path)
 Load a Certificate Signing Request (CSR)
int x509_csr_info (char *buf, size_t size, const char *prefix, const x509_csr *csr)
 Returns an informational string about the CSR.
void x509_csr_init (x509_csr *csr)
 Initialize a CSR.
void x509_csr_free (x509_csr *csr)
 Unallocate all CSR data.

Detailed Description

X.509 certificate signing request parsing and writing.

Copyright (C) 2006-2014, Brainspark B.V.

This file is part of PolarSSL (http://www.polarssl.org) Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>

All rights reserved.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

Definition in file x509_csr.h.

Function Documentation

int x509write_csr_der ( x509write_csr *  ctx,
unsigned char *  buf,
size_t  size,
int(*)(void *, unsigned char *, size_t)  f_rng,
void *  p_rng 
)

Write a CSR (Certificate Signing Request) to a DER structure Note: data is written at the end of the buffer! Use the return value to determine where you should start using the buffer.

Parameters:
ctxCSR to write away
bufbuffer to write to
sizesize of the buffer
f_rngRNG function (for signature, see note)
p_rngRNG parameter
Returns:
length of data written if successful, or a specific error code
Note:
f_rng may be NULL if RSA is used for signature and the signature is made offline (otherwise f_rng is desirable for countermeasures against timing attacks). ECDSA signatures always require a non-NULL f_rng.

Definition at line 128 of file x509write_csr.c.

void x509write_csr_free ( x509write_csr *  ctx )

Free the contents of a CSR context.

Parameters:
ctxCSR context to free

Definition at line 55 of file x509write_csr.c.

void x509write_csr_init ( x509write_csr *  ctx )

Initialize a CSR context.

Parameters:
ctxCSR context to initialize

Definition at line 50 of file x509write_csr.c.

int x509write_csr_pem ( x509write_csr *  ctx,
unsigned char *  buf,
size_t  size,
int(*)(void *, unsigned char *, size_t)  f_rng,
void *  p_rng 
)

Write a CSR (Certificate Signing Request) to a PEM string.

Parameters:
ctxCSR to write away
bufbuffer to write to
sizesize of the buffer
f_rngRNG function (for signature, see note)
p_rngRNG parameter
Returns:
0 successful, or a specific error code
Note:
f_rng may be NULL if RSA is used for signature and the signature is made offline (otherwise f_rng is desirable for couermeasures against timing attacks). ECDSA signatures always require a non-NULL f_rng.

Definition at line 230 of file x509write_csr.c.

int x509write_csr_set_extension ( x509write_csr *  ctx,
const char *  oid,
size_t  oid_len,
const unsigned char *  val,
size_t  val_len 
)

Generic function to add to or replace an extension in the CSR.

Parameters:
ctxCSR context to use
oidOID of the extension
oid_lenlength of the OID
valvalue of the extension OCTET STRING
val_lenlength of the value data
Returns:
0 if successful, or a POLARSSL_ERR_X509WRITE_MALLOC_FAILED

Definition at line 79 of file x509write_csr.c.

void x509write_csr_set_key ( x509write_csr *  ctx,
pk_context *  key 
)

Set the key for a CSR (public key will be included, private key used to sign the CSR when writing it)

Parameters:
ctxCSR context to use
keyAsymetric key to include

Definition at line 68 of file x509write_csr.c.

int x509write_csr_set_key_usage ( x509write_csr *  ctx,
unsigned char  key_usage 
)

Set the Key Usage Extension flags (e.g.

KU_DIGITAL_SIGNATURE | KU_KEY_CERT_SIGN)

Parameters:
ctxCSR context to use
key_usagekey usage flags to set
Returns:
0 if successful, or POLARSSL_ERR_X509WRITE_MALLOC_FAILED

Definition at line 87 of file x509write_csr.c.

void x509write_csr_set_md_alg ( x509write_csr *  ctx,
md_type_t  md_alg 
)

Set the MD algorithm to use for the signature (e.g.

POLARSSL_MD_SHA1)

Parameters:
ctxCSR context to use
md_algMD algorithm to use

Definition at line 63 of file x509write_csr.c.

int x509write_csr_set_ns_cert_type ( x509write_csr *  ctx,
unsigned char  ns_cert_type 
)

Set the Netscape Cert Type flags (e.g.

NS_CERT_TYPE_SSL_CLIENT | NS_CERT_TYPE_EMAIL)

Parameters:
ctxCSR context to use
ns_cert_typeNetscape Cert Type flags to set
Returns:
0 if successful, or POLARSSL_ERR_X509WRITE_MALLOC_FAILED

Definition at line 107 of file x509write_csr.c.

int x509write_csr_set_subject_name ( x509write_csr *  ctx,
const char *  subject_name 
)

Set the subject name for a CSR Subject names should contain a comma-separated list of OID types and values: e.g.

"C=NL,O=Offspark,CN=PolarSSL Server 1"

Parameters:
ctxCSR context to use
subject_namesubject name to set
Returns:
0 if subject name was parsed successfully, or a specific error code

Definition at line 73 of file x509write_csr.c.

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