diff options
Diffstat (limited to 'src/scepclient/pkcs10.c')
-rw-r--r-- | src/scepclient/pkcs10.c | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/src/scepclient/pkcs10.c b/src/scepclient/pkcs10.c deleted file mode 100644 index cdd68431e..000000000 --- a/src/scepclient/pkcs10.c +++ /dev/null @@ -1,224 +0,0 @@ -/** - * @file pkcs10.c - * @brief Functions to build PKCS#10 requests - * - * Contains functions to build DER encoded pkcs#10 certificate requests - */ - -/* Copyright (C) 2005 Jan Hutter, Martin Willi - * Hochschule fuer Technik Rapperswil - * - * 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. See <http://www.fsf.org/copyleft/gpl.txt>. - * - * 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. - */ - -#include <stdlib.h> -#include <string.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -#include <freeswan.h> -#include <asn1/asn1.h> -#include <asn1/oid.h> - -#include "../pluto/constants.h" -#include "../pluto/defs.h" -#include "../pluto/log.h" -#include "../pluto/x509.h" - -#include "pkcs10.h" - -/* some pre-coded OIDs */ - -static u_char ASN1_challengePassword_oid_str[] = { - 0x06,0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x09, 0x07 -}; - -static const chunk_t ASN1_challengePassword_oid = chunk_from_buf(ASN1_challengePassword_oid_str); - -static u_char ASN1_extensionRequest_oid_str[] = { - 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x09, 0x0E -}; - -static const chunk_t ASN1_extensionRequest_oid = chunk_from_buf(ASN1_extensionRequest_oid_str); - -/** - * @brief Adds a subjectAltName in DER-coded form to a linked list - * - * @param[in,out] subjectAltNames head of the linked list of subjectAltNames - * @param[in] kind type of the subjectAltName (which is a generalName) - * @param[in] value value of the subjectAltName as an ASCII string - */ -void -pkcs10_add_subjectAltName(generalName_t **subjectAltNames, generalNames_t kind -, char *value) -{ - generalName_t *gn; - asn1_t asn1_type = ASN1_EOC; - chunk_t name = { value, strlen(value) }; - - switch (kind) - { - case GN_RFC822_NAME: - asn1_type = ASN1_CONTEXT_S_1; - break; - case GN_DNS_NAME: - asn1_type = ASN1_CONTEXT_S_2; - break; - case GN_IP_ADDRESS: - { - struct in_addr addr; - - /* convert an ASCII dotted IPv4 address (e.g. 123.456.78.90) - * to a byte representation in network order - */ - if (!inet_aton(value, &addr)) - { - fprintf(stderr, "error in IPv4 subjectAltName\n"); - return; - } - asn1_type = ASN1_CONTEXT_S_7; - name.ptr = (u_char *) &addr.s_addr; - name.len = sizeof(addr.s_addr); - break; - } - default: - break; - } - - gn = malloc_thing(generalName_t); - gn->kind = kind; - gn->name = asn1_simple_object(asn1_type, name); - gn->next = *subjectAltNames; - *subjectAltNames = gn; -} - -/** - * @brief Builds the requestInfoAttributes of the certificationRequestInfo-field - * - * challenge password ans subjectAltNames are only included, - * when avaiable in given #pkcs10_t structure - * - * @param[in] pkcs10 Pointer to a #pkcs10_t structure - * @return 1 if succeeded, 0 otherwise - */ -static chunk_t -build_req_info_attributes(pkcs10_t* pkcs10) -{ - - chunk_t subjectAltNames = chunk_empty; - chunk_t challengePassword = chunk_empty; - - if (pkcs10->subjectAltNames != NULL) - { - - subjectAltNames = asn1_wrap(ASN1_SEQUENCE, "cm" - , ASN1_extensionRequest_oid - , asn1_wrap(ASN1_SET, "m" - , asn1_wrap(ASN1_SEQUENCE, "m" - , build_subjectAltNames(pkcs10->subjectAltNames) - ) - ) - ); - } - - if (pkcs10->challengePassword.len > 0) - { - asn1_t type = asn1_is_printablestring(pkcs10->challengePassword) - ? ASN1_PRINTABLESTRING : ASN1_T61STRING; - - challengePassword = asn1_wrap(ASN1_SEQUENCE, "cm" - , ASN1_challengePassword_oid - , asn1_wrap(ASN1_SET, "m" - , asn1_simple_object(type, pkcs10->challengePassword) - ) - ); - } - - return asn1_wrap(ASN1_CONTEXT_C_0, "mm" - , subjectAltNames - , challengePassword); -} - -/** - * @brief Builds a DER-code pkcs#10 certificate request - * - * @param[in] pkcs10 pointer to a pkcs10_t struct - * @return DER-code pkcs10 request - */ -static chunk_t -pkcs10_build_request(pkcs10_t *pkcs10, int signature_alg) -{ - chunk_t key = pkcs10->public_key->get_encoding(pkcs10->public_key); - - chunk_t keyInfo = asn1_wrap(ASN1_SEQUENCE, "cm", - asn1_algorithmIdentifier(OID_RSA_ENCRYPTION), - asn1_bitstring("m", key)); - - chunk_t cert_req_info = asn1_wrap(ASN1_SEQUENCE, "ccmm", - ASN1_INTEGER_0, - pkcs10->subject, - keyInfo, - build_req_info_attributes(pkcs10)); - - chunk_t signature = x509_build_signature(cert_req_info, signature_alg, - pkcs10->private_key, TRUE); - - return asn1_wrap(ASN1_SEQUENCE, "mcm", - cert_req_info, - asn1_algorithmIdentifier(signature_alg), - signature); -} - -/** - * @brief Creates a pkcs#10 certificate request object - * - * To create a certificate request, the RSA key and the - * names to be included as subject in the certificate request - * (e.g. commonName, organization) are needed. An optional challenge - * password or some subjectAltNames may be included. - * - * @param[in] key rsakey of type #rsakey_t - * @param[in] subject DER-coded subject distinguished name - * @param[in] challengePassword challenge password or chunk_empty - * @param[in] subjectAltNames linked list of subjectAltNames or NULL - * @return pointer to a #pkcs10_t object - */ -pkcs10_t* pkcs10_build(private_key_t *private, public_key_t *public, - chunk_t subject, chunk_t challengePassword, - generalName_t *subjectAltNames, int signature_alg) -{ - pkcs10_t *pkcs10 = malloc_thing(pkcs10_t); - - pkcs10->subject = subject; - pkcs10->private_key = private; - pkcs10->public_key = public; - pkcs10->challengePassword = challengePassword; - pkcs10->subjectAltNames = subjectAltNames; - - pkcs10->request = pkcs10_build_request(pkcs10, signature_alg); - return pkcs10; -} - -/** - * @brief Frees the resources used by an #pkcs10_t object - * - * @param[in] pkcs10 #pkcs10_t to free - */ -void -pkcs10_free(pkcs10_t *pkcs10) -{ - if (pkcs10 != NULL) - { - free(pkcs10->request.ptr); - free(pkcs10); - } -} |