diff options
Diffstat (limited to 'src/libstrongswan/plugins/pkcs8')
| -rw-r--r-- | src/libstrongswan/plugins/pkcs8/Makefile.am | 16 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/pkcs8/Makefile.in | 611 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/pkcs8/pkcs8_builder.c | 632 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/pkcs8/pkcs8_builder.h | 36 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/pkcs8/pkcs8_plugin.c | 78 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/pkcs8/pkcs8_plugin.h | 42 |
6 files changed, 1415 insertions, 0 deletions
diff --git a/src/libstrongswan/plugins/pkcs8/Makefile.am b/src/libstrongswan/plugins/pkcs8/Makefile.am new file mode 100644 index 000000000..bcaf2c6a5 --- /dev/null +++ b/src/libstrongswan/plugins/pkcs8/Makefile.am @@ -0,0 +1,16 @@ + +INCLUDES = -I$(top_srcdir)/src/libstrongswan + +AM_CFLAGS = -rdynamic + +if MONOLITHIC +noinst_LTLIBRARIES = libstrongswan-pkcs8.la +else +plugin_LTLIBRARIES = libstrongswan-pkcs8.la +endif + +libstrongswan_pkcs8_la_SOURCES = \ + pkcs8_plugin.h pkcs8_plugin.c \ + pkcs8_builder.h pkcs8_builder.c + +libstrongswan_pkcs8_la_LDFLAGS = -module -avoid-version diff --git a/src/libstrongswan/plugins/pkcs8/Makefile.in b/src/libstrongswan/plugins/pkcs8/Makefile.in new file mode 100644 index 000000000..2b9c6cf95 --- /dev/null +++ b/src/libstrongswan/plugins/pkcs8/Makefile.in @@ -0,0 +1,611 @@ +# Makefile.in generated by automake 1.11.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, +# Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkglibexecdir = $(libexecdir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +build_triplet = @build@ +host_triplet = @host@ +subdir = src/libstrongswan/plugins/pkcs8 +DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in +ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 +am__aclocal_m4_deps = $(top_srcdir)/m4/config/libtool.m4 \ + $(top_srcdir)/m4/config/ltoptions.m4 \ + $(top_srcdir)/m4/config/ltsugar.m4 \ + $(top_srcdir)/m4/config/ltversion.m4 \ + $(top_srcdir)/m4/config/lt~obsolete.m4 \ + $(top_srcdir)/m4/macros/with.m4 \ + $(top_srcdir)/m4/macros/enable-disable.m4 \ + $(top_srcdir)/m4/macros/add-plugin.m4 \ + $(top_srcdir)/configure.in +am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ + $(ACLOCAL_M4) +mkinstalldirs = $(install_sh) -d +CONFIG_CLEAN_FILES = +CONFIG_CLEAN_VPATH_FILES = +am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; +am__vpath_adj = case $$p in \ + $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \ + *) f=$$p;; \ + esac; +am__strip_dir = f=`echo $$p | sed 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clean-pluginLTLIBRARIES \ + ctags distclean distclean-compile distclean-generic \ + distclean-libtool distclean-tags distdir dvi dvi-am html \ + html-am info info-am install install-am install-data \ + install-data-am install-dvi install-dvi-am install-exec \ + install-exec-am install-html install-html-am install-info \ + install-info-am install-man install-pdf install-pdf-am \ + install-pluginLTLIBRARIES install-ps install-ps-am \ + install-strip installcheck installcheck-am installdirs \ + maintainer-clean maintainer-clean-generic mostlyclean \ + mostlyclean-compile mostlyclean-generic mostlyclean-libtool \ + pdf pdf-am ps ps-am tags uninstall uninstall-am \ + uninstall-pluginLTLIBRARIES + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/src/libstrongswan/plugins/pkcs8/pkcs8_builder.c b/src/libstrongswan/plugins/pkcs8/pkcs8_builder.c new file mode 100644 index 000000000..346240ae1 --- /dev/null +++ b/src/libstrongswan/plugins/pkcs8/pkcs8_builder.c @@ -0,0 +1,632 @@ +/* + * Copyright (C) 2012 Tobias Brunner + * 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 "pkcs8_builder.h" + +#include <debug.h> +#include <asn1/oid.h> +#include <asn1/asn1.h> +#include <asn1/asn1_parser.h> +#include <credentials/keys/private_key.h> + +/** + * ASN.1 definition of a privateKeyInfo structure + */ +static const asn1Object_t pkinfoObjects[] = { + { 0, "privateKeyInfo", ASN1_SEQUENCE, ASN1_NONE }, /* 0 */ + { 1, "version", ASN1_INTEGER, ASN1_BODY }, /* 1 */ + { 1, "privateKeyAlgorithm", ASN1_EOC, ASN1_RAW }, /* 2 */ + { 1, "privateKey", ASN1_OCTET_STRING, ASN1_BODY }, /* 3 */ + { 1, "attributes", ASN1_CONTEXT_C_0, ASN1_OPT }, /* 4 */ + { 1, "end opt", ASN1_EOC, ASN1_END }, /* 5 */ + { 0, "exit", ASN1_EOC, ASN1_EXIT } +}; +#define PKINFO_PRIVATE_KEY_ALGORITHM 2 +#define PKINFO_PRIVATE_KEY 3 + +/** + * Load a generic private key from an ASN.1 encoded blob + */ +static private_key_t *parse_private_key(chunk_t blob) +{ + asn1_parser_t *parser; + chunk_t object, params = chunk_empty; + int objectID; + private_key_t *key = NULL; + key_type_t type = KEY_ANY; + + parser = asn1_parser_create(pkinfoObjects, blob); + parser->set_flags(parser, FALSE, TRUE); + + while (parser->iterate(parser, &objectID, &object)) + { + switch (objectID) + { + case PKINFO_PRIVATE_KEY_ALGORITHM: + { + int oid = asn1_parse_algorithmIdentifier(object, + parser->get_level(parser) + 1, ¶ms); + + switch (oid) + { + case OID_RSA_ENCRYPTION: + type = KEY_RSA; + break; + case OID_EC_PUBLICKEY: + type = KEY_ECDSA; + break; + default: + /* key type not supported */ + goto end; + } + break; + } + case PKINFO_PRIVATE_KEY: + { + DBG2(DBG_ASN, "-- > --"); + if (params.ptr) + { + key = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, + type, BUILD_BLOB_ALGID_PARAMS, + params, BUILD_BLOB_ASN1_DER, + object, BUILD_END); + } + else + { + key = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, + type, BUILD_BLOB_ASN1_DER, object, + BUILD_END); + } + DBG2(DBG_ASN, "-- < --"); + break; + } + } + } + +end: + parser->destroy(parser); + return key; +} + +/** + * Verify padding of decrypted blob. + * Length of blob is adjusted accordingly. + */ +static bool verify_padding(chunk_t *blob) +{ + u_int8_t padding, count; + + padding = count = blob->ptr[blob->len - 1]; + if (padding > 8) + { + return FALSE; + } + for (; blob->len && count; --blob->len, --count) + { + if (blob->ptr[blob->len - 1] != padding) + { + return FALSE; + } + } + return TRUE; +} + +/** + * Prototype for key derivation functions. + */ +typedef void (*kdf_t)(void *generator, chunk_t password, chunk_t salt, + u_int64_t iterations, chunk_t key); + +/** + * Try to decrypt the given blob with multiple passwords using the given + * key derivation function. keymat is where the kdf function writes the key + * to, key and iv point to the actual keys and initialization vectors resp. + */ +static private_key_t *decrypt_private_key(chunk_t blob, + encryption_algorithm_t encr, size_t key_len, kdf_t kdf, + void *generator, chunk_t salt, u_int64_t iterations, + chunk_t keymat, chunk_t key, chunk_t iv) +{ + enumerator_t *enumerator; + shared_key_t *shared; + crypter_t *crypter; + private_key_t *private_key = NULL; + + crypter = lib->crypto->create_crypter(lib->crypto, encr, key_len); + if (!crypter) + { + DBG1(DBG_ASN, " %N encryption algorithm not available", + encryption_algorithm_names, encr); + return NULL; + } + if (blob.len % crypter->get_block_size(crypter)) + { + DBG1(DBG_ASN, " data size is not a multiple of block size"); + crypter->destroy(crypter); + return NULL; + } + + enumerator = lib->credmgr->create_shared_enumerator(lib->credmgr, + SHARED_PRIVATE_KEY_PASS, NULL, NULL); + while (enumerator->enumerate(enumerator, &shared, NULL, NULL)) + { + chunk_t decrypted; + + kdf(generator, shared->get_key(shared), salt, iterations, keymat); + + crypter->set_key(crypter, key); + crypter->decrypt(crypter, blob, iv, &decrypted); + if (verify_padding(&decrypted)) + { + private_key = parse_private_key(decrypted); + if (private_key) + { + chunk_clear(&decrypted); + break; + } + } + chunk_free(&decrypted); + } + enumerator->destroy(enumerator); + crypter->destroy(crypter); + + return private_key; +} + +/** + * Function F of PBKDF2 + */ +static void pbkdf2_f(chunk_t block, prf_t *prf, chunk_t seed, + u_int64_t iterations) +{ + chunk_t u; + u_int64_t i; + + u = chunk_alloca(prf->get_block_size(prf)); + prf->get_bytes(prf, seed, u.ptr); + memcpy(block.ptr, u.ptr, block.len); + + for (i = 1; i < iterations; i++) + { + prf->get_bytes(prf, u, u.ptr); + memxor(block.ptr, u.ptr, block.len); + } +} + +/** + * PBKDF2 key derivation function + */ +static void pbkdf2(prf_t *prf, chunk_t password, chunk_t salt, + u_int64_t iterations, chunk_t key) +{ + chunk_t keymat, block, seed; + size_t blocks; + u_int32_t i = 0, *ni; + + prf->set_key(prf, password); + + block.len = prf->get_block_size(prf); + blocks = (key.len - 1) / block.len + 1; + keymat = chunk_alloca(blocks * block.len); + + seed = chunk_cata("cc", salt, chunk_from_thing(i)); + ni = (u_int32_t*)(seed.ptr + salt.len); + + for (; i < blocks; i++) + { + *ni = htonl(i + 1); + block.ptr = keymat.ptr + (i * block.len); + pbkdf2_f(block, prf, seed, iterations); + } + + memcpy(key.ptr, keymat.ptr, key.len); +} + +/** + * Decrypt an encrypted PKCS#8 encoded private key according to PBES2 + */ +static private_key_t *decrypt_private_key_pbes2(chunk_t blob, + encryption_algorithm_t encr, size_t key_len, + chunk_t iv, pseudo_random_function_t prf_func, + chunk_t salt, u_int64_t iterations) +{ + private_key_t *private_key; + prf_t *prf; + chunk_t key; + + prf = lib->crypto->create_prf(lib->crypto, prf_func); + if (!prf) + { + DBG1(DBG_ASN, " %N prf algorithm not available", + pseudo_random_function_names, prf_func); + return NULL; + } + + key = chunk_alloca(key_len); + + private_key = decrypt_private_key(blob, encr, key_len, (kdf_t)pbkdf2, prf, + salt, iterations, key, key, iv); + + prf->destroy(prf); + return private_key; +} + +/** + * PBKDF1 key derivation function + */ +static void pbkdf1(hasher_t *hasher, chunk_t password, chunk_t salt, + u_int64_t iterations, chunk_t key) +{ + chunk_t hash; + u_int64_t i; + + hash = chunk_alloca(hasher->get_hash_size(hasher)); + hasher->get_hash(hasher, password, NULL); + hasher->get_hash(hasher, salt, hash.ptr); + + for (i = 1; i < iterations; i++) + { + hasher->get_hash(hasher, hash, hash.ptr); + } + + memcpy(key.ptr, hash.ptr, key.len); +} + +/** + * Decrypt an encrypted PKCS#8 encoded private key according to PBES1 + */ +static private_key_t *decrypt_private_key_pbes1(chunk_t blob, + encryption_algorithm_t encr, size_t key_len, + hash_algorithm_t hash, chunk_t salt, + u_int64_t iterations) +{ + private_key_t *private_key = NULL; + hasher_t *hasher = NULL; + chunk_t keymat, key, iv; + + hasher = lib->crypto->create_hasher(lib->crypto, hash); + if (!hasher) + { + DBG1(DBG_ASN, " %N hash algorithm not available", + hash_algorithm_names, hash); + goto end; + } + if (hasher->get_hash_size(hasher) < key_len) + { + goto end; + } + + keymat = chunk_alloca(key_len * 2); + key.len = key_len; + key.ptr = keymat.ptr; + iv.len = key_len; + iv.ptr = keymat.ptr + key_len; + + private_key = decrypt_private_key(blob, encr, key_len, (kdf_t)pbkdf1, + hasher, salt, iterations, keymat, + key, iv); + +end: + DESTROY_IF(hasher); + return private_key; +} + +/** + * Parse an ASN1_INTEGER to a u_int64_t. + */ +static u_int64_t parse_asn1_integer_uint64(chunk_t blob) +{ + u_int64_t val = 0; + int i; + + for (i = 0; i < blob.len; i++) + { /* if it is longer than 8 bytes, we just use the 8 LSBs */ + val <<= 8; + val |= (u_int64_t)blob.ptr[i]; + } + return val; +} + +/** + * ASN.1 definition of a PBKDF2-params structure + * The salt is actually a CHOICE and could be an AlgorithmIdentifier from + * PBKDF2-SaltSources (but as per RFC 2898 that's for future versions). + */ +static const asn1Object_t pbkdf2ParamsObjects[] = { + { 0, "PBKDF2-params", ASN1_SEQUENCE, ASN1_NONE }, /* 0 */ + { 1, "salt", ASN1_OCTET_STRING, ASN1_BODY }, /* 1 */ + { 1, "iterationCount",ASN1_INTEGER, ASN1_BODY }, /* 2 */ + { 1, "keyLength", ASN1_INTEGER, ASN1_OPT|ASN1_BODY }, /* 3 */ + { 1, "end opt", ASN1_EOC, ASN1_END }, /* 4 */ + { 1, "prf", ASN1_EOC, ASN1_DEF|ASN1_RAW }, /* 5 */ + { 0, "exit", ASN1_EOC, ASN1_EXIT } +}; +#define PBKDF2_SALT 1 +#define PBKDF2_ITERATION_COUNT 2 +#define PBKDF2_KEY_LENGTH 3 +#define PBKDF2_PRF 5 + +/** + * Parse a PBKDF2-params structure + */ +static void parse_pbkdf2_params(chunk_t blob, chunk_t *salt, + u_int64_t *iterations, size_t *key_len, + pseudo_random_function_t *prf) +{ + asn1_parser_t *parser; + chunk_t object; + int objectID; + + parser = asn1_parser_create(pbkdf2ParamsObjects, blob); + + *key_len = 0; /* key_len is optional */ + + while (parser->iterate(parser, &objectID, &object)) + { + switch (objectID) + { + case PBKDF2_SALT: + { + *salt = object; + break; + } + case PBKDF2_ITERATION_COUNT: + { + *iterations = parse_asn1_integer_uint64(object); + break; + } + case PBKDF2_KEY_LENGTH: + { + *key_len = (size_t)parse_asn1_integer_uint64(object); + break; + } + case PBKDF2_PRF: + { /* defaults to id-hmacWithSHA1 */ + *prf = PRF_HMAC_SHA1; + break; + } + } + } + + parser->destroy(parser); +} + +/** + * ASN.1 definition of a PBES2-params structure + */ +static const asn1Object_t pbes2ParamsObjects[] = { + { 0, "PBES2-params", ASN1_SEQUENCE, ASN1_NONE }, /* 0 */ + { 1, "keyDerivationFunc", ASN1_EOC, ASN1_RAW }, /* 1 */ + { 1, "encryptionScheme", ASN1_EOC, ASN1_RAW }, /* 2 */ + { 0, "exit", ASN1_EOC, ASN1_EXIT } +}; +#define PBES2PARAMS_KEY_DERIVATION_FUNC 1 +#define PBES2PARAMS_ENCRYPTION_SCHEME 2 + +/** + * Parse a PBES2-params structure + */ +static void parse_pbes2_params(chunk_t blob, chunk_t *salt, + u_int64_t *iterations, size_t *key_len, + pseudo_random_function_t *prf, + encryption_algorithm_t *encr, chunk_t *iv) +{ + asn1_parser_t *parser; + chunk_t object, params; + int objectID; + + parser = asn1_parser_create(pbes2ParamsObjects, blob); + + while (parser->iterate(parser, &objectID, &object)) + { + switch (objectID) + { + case PBES2PARAMS_KEY_DERIVATION_FUNC: + { + int oid = asn1_parse_algorithmIdentifier(object, + parser->get_level(parser) + 1, ¶ms); + if (oid != OID_PBKDF2) + { /* unsupported key derivation function */ + goto end; + } + parse_pbkdf2_params(params, salt, iterations, key_len, prf); + break; + } + case PBES2PARAMS_ENCRYPTION_SCHEME: + { + int oid = asn1_parse_algorithmIdentifier(object, + parser->get_level(parser) + 1, ¶ms); + if (oid != OID_3DES_EDE_CBC) + { /* unsupported encryption scheme */ + goto end; + } + if (*key_len <= 0) + { /* default key len for DES-EDE3-CBC-Pad */ + *key_len = 24; + } + if (!asn1_parse_simple_object(¶ms, ASN1_OCTET_STRING, + parser->get_level(parser) + 1, "IV")) + { + goto end; + } + *encr = ENCR_3DES; + *iv = params; + break; + } + } + } + +end: + parser->destroy(parser); +} + +/** + * ASN.1 definition of a PBEParameter structure + */ +static const asn1Object_t pbeParameterObjects[] = { + { 0, "PBEParameter", ASN1_SEQUENCE, ASN1_NONE }, /* 0 */ + { 1, "salt", ASN1_OCTET_STRING, ASN1_BODY }, /* 1 */ + { 1, "iterationCount", ASN1_INTEGER, ASN1_BODY }, /* 2 */ + { 0, "exit", ASN1_EOC, ASN1_EXIT } +}; +#define PBEPARAM_SALT 1 +#define PBEPARAM_ITERATION_COUNT 2 + +/** + * Parse a PBEParameter structure + */ +static void parse_pbe_parameters(chunk_t blob, chunk_t *salt, + u_int64_t *iterations) +{ + asn1_parser_t *parser; + chunk_t object; + int objectID; + + parser = asn1_parser_create(pbeParameterObjects, blob); + + while (parser->iterate(parser, &objectID, &object)) + { + switch (objectID) + { + case PBEPARAM_SALT: + { + *salt = object; + break; + } + case PBEPARAM_ITERATION_COUNT: + { + *iterations = parse_asn1_integer_uint64(object); + break; + } + } + } + + parser->destroy(parser); +} + +/** + * ASN.1 definition of an encryptedPrivateKeyInfo structure + */ +static const asn1Object_t encryptedPKIObjects[] = { + { 0, "encryptedPrivateKeyInfo", ASN1_SEQUENCE, ASN1_NONE }, /* 0 */ + { 1, "encryptionAlgorithm", ASN1_EOC, ASN1_RAW }, /* 1 */ + { 1, "encryptedData", ASN1_OCTET_STRING, ASN1_BODY }, /* 2 */ + { 0, "exit", ASN1_EOC, ASN1_EXIT } +}; +#define EPKINFO_ENCRYPTION_ALGORITHM 1 +#define EPKINFO_ENCRYPTED_DATA 2 + +/** + * Load an encrypted private key from an ASN.1 encoded blob + * Schemes per PKCS#5 (RFC 2898) + */ +static private_key_t *parse_encrypted_private_key(chunk_t blob) +{ + asn1_parser_t *parser; + chunk_t object, params, salt, iv; + u_int64_t iterations = 0; + int objectID; + encryption_algorithm_t encr = ENCR_UNDEFINED; + hash_algorithm_t hash = HASH_UNKNOWN; + pseudo_random_function_t prf = PRF_UNDEFINED; + private_key_t *key = NULL; + size_t key_len = 8; + + parser = asn1_parser_create(encryptedPKIObjects, blob); + + while (parser->iterate(parser, &objectID, &object)) + { + switch (objectID) + { + case EPKINFO_ENCRYPTION_ALGORITHM: + { + int oid = asn1_parse_algorithmIdentifier(object, + parser->get_level(parser) + 1, ¶ms); + + switch (oid) + { + case OID_PBE_MD5_DES_CBC: + encr = ENCR_DES; + hash = HASH_MD5; + parse_pbe_parameters(params, &salt, &iterations); + break; + case OID_PBE_SHA1_DES_CBC: + encr = ENCR_DES; + hash = HASH_SHA1; + parse_pbe_parameters(params, &salt, &iterations); + break; + case OID_PBES2: + parse_pbes2_params(params, &salt, &iterations, + &key_len, &prf, &encr, &iv); + break; + default: + /* encryption scheme not supported */ + goto end; + } + break; + } + case EPKINFO_ENCRYPTED_DATA: + { + if (prf != PRF_UNDEFINED) + { + key = decrypt_private_key_pbes2(object, encr, key_len, iv, + prf, salt, iterations); + } + else + { + key = decrypt_private_key_pbes1(object, encr, key_len, hash, + salt, iterations); + } + break; + } + } + } + +end: + parser->destroy(parser); + return key; +} + +/** + * See header. + */ +private_key_t *pkcs8_private_key_load(key_type_t type, va_list args) +{ + chunk_t blob = chunk_empty; + private_key_t *key; + + while (TRUE) + { + switch (va_arg(args, builder_part_t)) + { + case BUILD_BLOB_ASN1_DER: + blob = va_arg(args, chunk_t); + continue; + case BUILD_END: + break; + default: + return NULL; + } + break; + } + /* we don't know whether it is encrypted or not, try both ways */ + key = parse_encrypted_private_key(blob); + if (!key) + { + key = parse_private_key(blob); + } + return key; +} + diff --git a/src/libstrongswan/plugins/pkcs8/pkcs8_builder.h b/src/libstrongswan/plugins/pkcs8/pkcs8_builder.h new file mode 100644 index 000000000..b07f2d927 --- /dev/null +++ b/src/libstrongswan/plugins/pkcs8/pkcs8_builder.h @@ -0,0 +1,36 @@ +/* + * Copyright (C) 2012 Tobias Brunner + * 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. + */ + +/** + * @defgroup pkcs8_builder pkcs8_builder + * @{ @ingroup pkcs8 + */ + +#ifndef PKCS8_BUILDER_H_ +#define PKCS8_BUILDER_H_ + +#include <credentials/builder.h> +#include <credentials/keys/private_key.h> + +/** + * Load an RSA or ECDSA private key from PKCS#8 data. + * + * @param type type of the key, KEY_RSA or KEY_ECDSA + * @param args builder_part_t argument list + * @return private key, NULL on failure + */ +private_key_t *pkcs8_private_key_load(key_type_t type, va_list args); + +#endif /** PKCS8_BUILDER_H_ @}*/ diff --git a/src/libstrongswan/plugins/pkcs8/pkcs8_plugin.c b/src/libstrongswan/plugins/pkcs8/pkcs8_plugin.c new file mode 100644 index 000000000..f78c83054 --- /dev/null +++ b/src/libstrongswan/plugins/pkcs8/pkcs8_plugin.c @@ -0,0 +1,78 @@ +/* + * Copyright (C) 2012 Tobias Brunner + * 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 "pkcs8_plugin.h" + +#include <library.h> + +#include "pkcs8_builder.h" + +typedef struct private_pkcs8_plugin_t private_pkcs8_plugin_t; + +/** + * private data of pkcs8_plugin + */ +struct private_pkcs8_plugin_t { + + /** + * public functions + */ + pkcs8_plugin_t public; +}; + +METHOD(plugin_t, get_name, char*, + private_pkcs8_plugin_t *this) +{ + return "pkcs8"; +} + +METHOD(plugin_t, get_features, int, + private_pkcs8_plugin_t *this, plugin_feature_t *features[]) +{ + static plugin_feature_t f[] = { + PLUGIN_REGISTER(PRIVKEY, pkcs8_private_key_load, FALSE), + PLUGIN_PROVIDE(PRIVKEY, KEY_RSA), + PLUGIN_PROVIDE(PRIVKEY, KEY_ECDSA), + }; + *features = f; + return countof(f); +} + +METHOD(plugin_t, destroy, void, + private_pkcs8_plugin_t *this) +{ + free(this); +} + +/* + * see header file + */ +plugin_t *pkcs8_plugin_create() +{ + private_pkcs8_plugin_t *this; + + INIT(this, + .public = { + .plugin = { + .get_name = _get_name, + .get_features = _get_features, + .destroy = _destroy, + }, + }, + ); + + return &this->public.plugin; +} + diff --git a/src/libstrongswan/plugins/pkcs8/pkcs8_plugin.h b/src/libstrongswan/plugins/pkcs8/pkcs8_plugin.h new file mode 100644 index 000000000..03ca950a3 --- /dev/null +++ b/src/libstrongswan/plugins/pkcs8/pkcs8_plugin.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2012 Tobias Brunner + * 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 PURPSE. See the GNU General Public License + * for more details. + */ + +/** + * @defgroup pkcs8 pkcs8 + * @ingroup plugins + * + * @defgroup pkcs8_plugin pkcs8_plugin + * @{ @ingroup pkcs8 + */ + +#ifndef PKCS8_PLUGIN_H_ +#define PKCS8_PLUGIN_H_ + +#include <plugins/plugin.h> + +typedef struct pkcs8_plugin_t pkcs8_plugin_t; + +/** + * Plugin providing PKCS#8 private key decoding functions + */ +struct pkcs8_plugin_t { + + /** + * implements plugin interface + */ + plugin_t plugin; +}; + +#endif /** PKCS8_PLUGIN_H_ @}*/ |