diff options
Diffstat (limited to 'src/libstrongswan/plugins/pubkey/pubkey_public_key.c')
| -rw-r--r-- | src/libstrongswan/plugins/pubkey/pubkey_public_key.c | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/src/libstrongswan/plugins/pubkey/pubkey_public_key.c b/src/libstrongswan/plugins/pubkey/pubkey_public_key.c deleted file mode 100644 index 6d3ae66ab..000000000 --- a/src/libstrongswan/plugins/pubkey/pubkey_public_key.c +++ /dev/null @@ -1,184 +0,0 @@ -/* - * Copyright (C) 2008 Tobias Brunner - * Copyright (C) 2008 Martin Willi - * Copyright (C) 2000-2008 Andreas Steffen - * 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 "pubkey_public_key.h" - -#include <debug.h> -#include <asn1/pem.h> -#include <asn1/oid.h> -#include <asn1/asn1.h> -#include <asn1/asn1_parser.h> - -/** - * ASN.1 definition of a subjectPublicKeyInfo structure - */ -static const asn1Object_t pkinfoObjects[] = { - { 0, "subjectPublicKeyInfo",ASN1_SEQUENCE, ASN1_NONE }, /* 0 */ - { 1, "algorithm", ASN1_EOC, ASN1_RAW }, /* 1 */ - { 1, "subjectPublicKey", ASN1_BIT_STRING, ASN1_BODY }, /* 2 */ - { 0, "exit", ASN1_EOC, ASN1_EXIT } -}; -#define PKINFO_SUBJECT_PUBLIC_KEY_ALGORITHM 1 -#define PKINFO_SUBJECT_PUBLIC_KEY 2 - - -/** - * Load a public key from an ASN.1 encoded blob - * Also used by pubkey_cert.c - */ -public_key_t *pubkey_public_key_load(chunk_t blob) -{ - asn1_parser_t *parser; - chunk_t object; - int objectID; - public_key_t *key = NULL; - key_type_t type = KEY_ANY; - - parser = asn1_parser_create(pkinfoObjects, blob); - - while (parser->iterate(parser, &objectID, &object)) - { - switch (objectID) - { - case PKINFO_SUBJECT_PUBLIC_KEY_ALGORITHM: - { - int oid = asn1_parse_algorithmIdentifier(object, - parser->get_level(parser)+1, NULL); - - if (oid == OID_RSA_ENCRYPTION) - { - type = KEY_RSA; - } - else if (oid == OID_EC_PUBLICKEY) - { - /* we need the whole subjectPublicKeyInfo for EC public keys */ - key = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, - KEY_ECDSA, BUILD_BLOB_ASN1_DER, blob, BUILD_END); - goto end; - } - else - { - /* key type not supported */ - goto end; - } - break; - } - case PKINFO_SUBJECT_PUBLIC_KEY: - if (object.len > 0 && *object.ptr == 0x00) - { - /* skip initial bit string octet defining 0 unused bits */ - object = chunk_skip(object, 1); - } - key = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, type, - BUILD_BLOB_ASN1_DER, object, BUILD_END); - break; - } - } - -end: - parser->destroy(parser); - free(blob.ptr); - return key; -} - -typedef struct private_builder_t private_builder_t; -/** - * Builder implementation for key loading - */ -struct private_builder_t { - /** implements the builder interface */ - builder_t public; - /** loaded public key */ - public_key_t *key; -}; - -/** - * Implementation of builder_t.build - */ -static public_key_t *build(private_builder_t *this) -{ - public_key_t *key = this->key; - - free(this); - return key; -} - -/** - * Implementation of builder_t.add - */ -static void add(private_builder_t *this, builder_part_t part, ...) -{ - if (!this->key) - { - va_list args; - chunk_t blob; - - switch (part) - { - case BUILD_BLOB_ASN1_DER: - { - va_start(args, part); - blob = va_arg(args, chunk_t); - this->key = pubkey_public_key_load(chunk_clone(blob)); - va_end(args); - return; - } - case BUILD_BLOB_ASN1_PEM: - { - bool pgp; - char *pem; - - va_start(args, part); - pem = va_arg(args, char *); - blob = chunk_clone(chunk_create(pem, strlen(pem))); - if (pem_to_bin(&blob, chunk_empty, &pgp) == SUCCESS) - { - this->key = pubkey_public_key_load(chunk_clone(blob)); - } - free(blob.ptr); - va_end(args); - return; - } - default: - break; - } - } - DESTROY_IF(this->key); - builder_cancel(&this->public); -} - -/** - * Builder construction function - */ -builder_t *pubkey_public_key_builder(key_type_t type) -{ - private_builder_t *this; - - if (type != KEY_ANY) - { - return NULL; - } - - this = malloc_thing(private_builder_t); - - this->key = NULL; - this->public.add = (void(*)(builder_t *this, builder_part_t part, ...))add; - this->public.build = (void*(*)(builder_t *this))build; - - return &this->public; -} - |