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📄 Makefile.am(7.68 KB)
📄 Makefile.in(224.98 KB)
📄 acache.c(26.87 KB)
📄 acl.c(7.58 KB)
📄 add_et_list.c(2.2 KB)
📄 addr_families.c(38.89 KB)
📄 aes-test.c(22.56 KB)
📄 aname_to_localname.c(2.83 KB)
📄 appdefault.c(4.41 KB)
📄 asn1_glue.c(2.37 KB)
📄 auth_context.c(14.97 KB)
📄 build_ap_req.c(2.77 KB)
📄 build_auth.c(5.5 KB)
📄 cache.c(41.88 KB)
📄 ccache_plugin.h(1.67 KB)
📄 changepw.c(20.59 KB)
📄 codec.c(6.1 KB)
📄 config_file.c(31.7 KB)
📄 constants.c(2.51 KB)
📄 context.c(37.71 KB)
📄 convert_creds.c(3.46 KB)
📄 copy_host_realm.c(2.66 KB)
📄 crc.c(2.19 KB)
📄 creds.c(8.75 KB)
📄 crypto-aes.c(4.62 KB)
📄 crypto-algs.c(3.04 KB)
📄 crypto-arcfour.c(8.78 KB)
📄 crypto-des-common.c(4.37 KB)
📄 crypto-des.c(8.8 KB)
📄 crypto-des3.c(5.36 KB)
📄 crypto-evp.c(5.45 KB)
📄 crypto-null.c(2.55 KB)
📄 crypto-pk.c(8.4 KB)
📄 crypto-rand.c(3.43 KB)
📄 crypto-stubs.c(3.1 KB)
📄 crypto.c(66.51 KB)
📄 crypto.h(6.5 KB)
📄 data.c(5.66 KB)
📄 deprecated.c(14.72 KB)
📄 derived-key-test.c(6.48 KB)
📄 digest.c(31.6 KB)
📄 doxygen.c(25.72 KB)
📄 eai_to_heim_errno.c(3.46 KB)
📄 error_string.c(8.93 KB)
📄 expand_hostname.c(5.59 KB)
📄 expand_path.c(12.35 KB)
📄 fcache.c(25.36 KB)
📄 free.c(2.01 KB)
📄 free_host_realm.c(2.1 KB)
📄 generate_seq_number.c(2.03 KB)
📄 generate_subkey.c(2.6 KB)
📄 get_addrs.c(8.2 KB)
📄 get_cred.c(38.45 KB)
📄 get_default_principal.c(4.47 KB)
📄 get_default_realm.c(2.74 KB)
📄 get_for_creds.c(13.48 KB)
📄 get_host_realm.c(7.06 KB)
📄 get_in_tkt.c(14.45 KB)
📄 get_port.c(2.04 KB)
📄 heim_err.et(1.7 KB)
📄 init_creds.c(12.11 KB)
📄 init_creds_pw.c(52.57 KB)
📄 k524_err.et(577 B)
📄 kcm.c(26.55 KB)
📄 kcm.h(2.83 KB)
📄 kerberos.8(4.14 KB)
📄 keyblock.c(5.31 KB)
📄 keytab.c(23.88 KB)
📄 keytab_any.c(6.48 KB)
📄 keytab_file.c(19.7 KB)
📄 keytab_keyfile.c(10.74 KB)
📄 keytab_memory.c(6.29 KB)
📄 krb5-private.h(12.91 KB)
📄 krb5-protos.h(113.43 KB)
📄 krb5-v4compat.h(4.44 KB)
📄 krb5.conf.5(18.31 KB)
📄 krb5.h(29.75 KB)
📄 krb5.moduli(1.11 KB)
📄 krb524_convert_creds_kdc.3(3.12 KB)
📄 krb5_425_conv_principal.3(7.02 KB)
📄 krb5_acl_match_file.3(3.49 KB)
📄 krb5_aname_to_localname.3(2.87 KB)
📄 krb5_appdefault.3(3.08 KB)
📄 krb5_auth_context.3(10.8 KB)
📄 krb5_c_make_checksum.3(6.92 KB)
📄 krb5_ccapi.h(7.52 KB)
📄 krb5_check_transited.3(3.28 KB)
📄 krb5_create_checksum.3(6.02 KB)
📄 krb5_creds.3(3.31 KB)
📄 krb5_digest.3(6.57 KB)
📄 krb5_eai_to_heim_errno.3(2.4 KB)
📄 krb5_encrypt.3(7 KB)
📄 krb5_err.et(12.86 KB)
📄 krb5_find_padata.3(2.53 KB)
📄 krb5_generate_random_block.3(2.1 KB)
📄 krb5_get_all_client_addrs.3(2.83 KB)
📄 krb5_get_credentials.3(5.03 KB)
📄 krb5_get_creds.3(5.28 KB)
📄 krb5_get_forwarded_creds.3(2.74 KB)
📄 krb5_get_in_cred.3(7.46 KB)
📄 krb5_get_init_creds.3(11.03 KB)
📄 krb5_get_krbhst.3(3.26 KB)
📄 krb5_getportbyname.3(2.32 KB)
📄 krb5_init_context.3(7.88 KB)
📄 krb5_is_thread_safe.3(2.24 KB)
📄 krb5_krbhst_init.3(5.67 KB)
📄 krb5_locl.h(8.47 KB)
📄 krb5_mk_req.3(5.18 KB)
📄 krb5_mk_safe.3(2.78 KB)
📄 krb5_openlog.3(7.96 KB)
📄 krb5_parse_name.3(2.57 KB)
📄 krb5_principal.3(11.85 KB)
📄 krb5_rcache.3(4.21 KB)
📄 krb5_rd_error.3(3.33 KB)
📄 krb5_rd_safe.3(2.77 KB)
📄 krb5_set_default_realm.3(4.29 KB)
📄 krb5_set_password.3(4.11 KB)
📄 krb5_string_to_key.3(4.39 KB)
📄 krb5_timeofday.3(3.33 KB)
📄 krb5_verify_init_creds.3(3.51 KB)
📄 krb5_verify_user.3(6.71 KB)
📄 krb_err.et(2.55 KB)
📄 krbhst-test.c(3.02 KB)
📄 krbhst.c(26.94 KB)
📄 kuserok.c(8.14 KB)
📄 locate_plugin.h(2.36 KB)
📄 log.c(11.94 KB)
📄 mcache.c(11.54 KB)
📄 misc.c(3.9 KB)
📄 mit_glue.c(11.14 KB)
📄 mk_error.c(3.23 KB)
📄 mk_priv.c(4.54 KB)
📄 mk_rep.c(3.99 KB)
📄 mk_req.c(3.58 KB)
📄 mk_req_ext.c(4.78 KB)
📄 mk_safe.c(4.36 KB)
📄 n-fold-test.c(4.14 KB)
📄 n-fold.c(3.8 KB)
📄 net_read.c(1.86 KB)
📄 net_write.c(3.05 KB)
📄 pac.c(28.37 KB)
📄 padata.c(2.35 KB)
📄 parse-name-test.c(5.81 KB)
📄 pcache.c(2.33 KB)
📄 pkinit.c(63.8 KB)
📄 plugin.c(13.71 KB)
📄 principal.c(28.4 KB)
📄 prog_setup.c(2.34 KB)
📄 prompter_posix.c(2.45 KB)
📄 rd_cred.c(9.44 KB)
📄 rd_error.c(3.83 KB)
📄 rd_priv.c(5.38 KB)
📄 rd_rep.c(3.72 KB)
📄 rd_req.c(25.6 KB)
📄 rd_safe.c(6.34 KB)
📄 read_message.c(3.22 KB)
📄 recvauth.c(6.16 KB)
📄 replay.c(8.24 KB)
📄 salt-aes.c(3.34 KB)
📄 salt-arcfour.c(3.24 KB)
📄 salt-des.c(6.68 KB)
📄 salt-des3.c(4.36 KB)
📄 salt.c(9 KB)
📄 scache.c(32.86 KB)
📄 send_to_kdc.c(16.06 KB)
📄 send_to_kdc_plugin.h(2.22 KB)
📄 sendauth.c(6.12 KB)
📄 set_default_realm.c(3.01 KB)
📄 sock_principal.c(2.52 KB)
📄 store-int.c(2.14 KB)
📄 store-int.h(2.07 KB)
📄 store-test.c(3.63 KB)
📄 store.c(35.77 KB)
📄 store_emem.c(5.06 KB)
📄 store_fd.c(3.4 KB)
📄 store_mem.c(5.42 KB)
📄 string-to-key-test.c(5.75 KB)
📄 test_acl.c(4.56 KB)
📄 test_addr.c(7.27 KB)
📄 test_alname.c(4.28 KB)
📄 test_cc.c(19.39 KB)
📄 test_config.c(7.92 KB)
📄 test_crypto.c(5.68 KB)
📄 test_crypto_wrapping.c(4.48 KB)
📄 test_forward.c(3.64 KB)
📄 test_get_addrs.c(3.21 KB)
📄 test_hostname.c(3.82 KB)
📄 test_keytab.c(7.42 KB)
📄 test_kuserok.c(2.9 KB)
📄 test_mem.c(2.21 KB)
📄 test_pac.c(15.1 KB)
📄 test_pkinit_dh2key.c(6.9 KB)
📄 test_plugin.c(3.4 KB)
📄 test_prf.c(3.21 KB)
📄 test_princ.c(10.44 KB)
📄 test_renew.c(3.22 KB)
📄 test_store.c(7.96 KB)
📄 test_time.c(2.57 KB)
📄 ticket.c(21.91 KB)
📄 time.c(3.84 KB)
📄 transited.c(11.11 KB)
📄 verify_init.c(6.47 KB)
📄 verify_krb5_conf.8(3.41 KB)
📄 verify_krb5_conf.c(20.63 KB)
📄 verify_user.c(7 KB)
📄 version-script.map(18.82 KB)
📄 version.c(1.71 KB)
📄 warn.c(8.98 KB)
📄 write_message.c(2.87 KB)

Editing: crypto-pk.c

/*
 * Copyright (c) 1997 - 2008 Kungliga Tekniska Högskolan
 * (Royal Institute of Technology, Stockholm, Sweden).
 * 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. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS 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 INSTITUTE OR 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.
 */

#include "krb5_locl.h"

#include <pkinit_asn1.h>

krb5_error_code
_krb5_pk_octetstring2key(krb5_context context,
			 krb5_enctype type,
			 const void *dhdata,
			 size_t dhsize,
			 const heim_octet_string *c_n,
			 const heim_octet_string *k_n,
			 krb5_keyblock *key)
{
    struct _krb5_encryption_type *et = _krb5_find_enctype(type);
    krb5_error_code ret;
    size_t keylen, offset;
    void *keydata;
    unsigned char counter;
    unsigned char shaoutput[SHA_DIGEST_LENGTH];
    EVP_MD_CTX *m;

if(et == NULL) {
	krb5_set_error_message(context, KRB5_PROG_ETYPE_NOSUPP,
			       N_("encryption type %d not supported", ""),
			       type);
	return KRB5_PROG_ETYPE_NOSUPP;
    }
    keylen = (et->keytype->bits + 7) / 8;

keydata = malloc(keylen);
    if (keydata == NULL) {
	krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
	return ENOMEM;
    }

m = EVP_MD_CTX_create();
    if (m == NULL) {
	free(keydata);
	krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
	return ENOMEM;
    }

counter = 0;
    offset = 0;
    do {

EVP_DigestInit_ex(m, EVP_sha1(), NULL);
	EVP_DigestUpdate(m, &counter, 1);
	EVP_DigestUpdate(m, dhdata, dhsize);

if (c_n)
	    EVP_DigestUpdate(m, c_n->data, c_n->length);
	if (k_n)
	    EVP_DigestUpdate(m, k_n->data, k_n->length);

EVP_DigestFinal_ex(m, shaoutput, NULL);

memcpy((unsigned char *)keydata + offset,
	       shaoutput,
	       min(keylen - offset, sizeof(shaoutput)));

offset += sizeof(shaoutput);
	counter++;
    } while(offset < keylen);
    memset(shaoutput, 0, sizeof(shaoutput));

EVP_MD_CTX_destroy(m);

ret = krb5_random_to_key(context, type, keydata, keylen, key);
    memset(keydata, 0, sizeof(keylen));
    free(keydata);
    return ret;
}

static krb5_error_code
encode_uvinfo(krb5_context context, krb5_const_principal p, krb5_data *data)
{
    KRB5PrincipalName pn;
    krb5_error_code ret;
    size_t size = 0;

pn.principalName = p->name;
    pn.realm = p->realm;

ASN1_MALLOC_ENCODE(KRB5PrincipalName, data->data, data->length,
		       &pn, &size, ret);
    if (ret) {
	krb5_data_zero(data);
	krb5_set_error_message(context, ret,
			       N_("Failed to encode KRB5PrincipalName", ""));
	return ret;
    }
    if (data->length != size)
	krb5_abortx(context, "asn1 compiler internal error");
    return 0;
}

static krb5_error_code
encode_otherinfo(krb5_context context,
		 const AlgorithmIdentifier *ai,
		 krb5_const_principal client,
		 krb5_const_principal server,
		 krb5_enctype enctype,
		 const krb5_data *as_req,
		 const krb5_data *pk_as_rep,
		 const Ticket *ticket,
		 krb5_data *other)
{
    PkinitSP80056AOtherInfo otherinfo;
    PkinitSuppPubInfo pubinfo;
    krb5_error_code ret;
    krb5_data pub;
    size_t size = 0;

krb5_data_zero(other);
    memset(&otherinfo, 0, sizeof(otherinfo));
    memset(&pubinfo, 0, sizeof(pubinfo));

pubinfo.enctype = enctype;
    pubinfo.as_REQ = *as_req;
    pubinfo.pk_as_rep = *pk_as_rep;
    pubinfo.ticket = *ticket;
    ASN1_MALLOC_ENCODE(PkinitSuppPubInfo, pub.data, pub.length,
		       &pubinfo, &size, ret);
    if (ret) {
	krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
	return ret;
    }
    if (pub.length != size)
	krb5_abortx(context, "asn1 compiler internal error");

ret = encode_uvinfo(context, client, &otherinfo.partyUInfo);
    if (ret) {
	free(pub.data);
	return ret;
    }
    ret = encode_uvinfo(context, server, &otherinfo.partyVInfo);
    if (ret) {
	free(otherinfo.partyUInfo.data);
	free(pub.data);
	return ret;
    }

otherinfo.algorithmID = *ai;
    otherinfo.suppPubInfo = &pub;

ASN1_MALLOC_ENCODE(PkinitSP80056AOtherInfo, other->data, other->length,
		       &otherinfo, &size, ret);
    free(otherinfo.partyUInfo.data);
    free(otherinfo.partyVInfo.data);
    free(pub.data);
    if (ret) {
	krb5_set_error_message(context, ret, N_("malloc: out of memory", ""));
	return ret;
    }
    if (other->length != size)
	krb5_abortx(context, "asn1 compiler internal error");

return 0;
}

krb5_error_code
_krb5_pk_kdf(krb5_context context,
	     const struct AlgorithmIdentifier *ai,
	     const void *dhdata,
	     size_t dhsize,
	     krb5_const_principal client,
	     krb5_const_principal server,
	     krb5_enctype enctype,
	     const krb5_data *as_req,
	     const krb5_data *pk_as_rep,
	     const Ticket *ticket,
	     krb5_keyblock *key)
{
    struct _krb5_encryption_type *et;
    krb5_error_code ret;
    krb5_data other;
    size_t keylen, offset;
    uint32_t counter;
    unsigned char *keydata;
    unsigned char shaoutput[SHA512_DIGEST_LENGTH];
    const EVP_MD *md;
    EVP_MD_CTX *m;

if (der_heim_oid_cmp(&asn1_oid_id_pkinit_kdf_ah_sha1, &ai->algorithm) == 0) {
        md = EVP_sha1();
    } else if (der_heim_oid_cmp(&asn1_oid_id_pkinit_kdf_ah_sha256, &ai->algorithm) == 0) {
        md = EVP_sha256();
    } else if (der_heim_oid_cmp(&asn1_oid_id_pkinit_kdf_ah_sha512, &ai->algorithm) == 0) {
        md = EVP_sha512();
    } else {
	krb5_set_error_message(context, KRB5_PROG_ETYPE_NOSUPP,
			       N_("KDF not supported", ""));
	return KRB5_PROG_ETYPE_NOSUPP;
    }
    if (ai->parameters != NULL &&
	(ai->parameters->length != 2 ||
	 memcmp(ai->parameters->data, "\x05\x00", 2) != 0))
	{
	    krb5_set_error_message(context, KRB5_PROG_ETYPE_NOSUPP,
				   N_("kdf params not NULL or the NULL-type",
				      ""));
	    return KRB5_PROG_ETYPE_NOSUPP;
	}

et = _krb5_find_enctype(enctype);
    if(et == NULL) {
	krb5_set_error_message(context, KRB5_PROG_ETYPE_NOSUPP,
			       N_("encryption type %d not supported", ""),
			       enctype);
	return KRB5_PROG_ETYPE_NOSUPP;
    }
    keylen = (et->keytype->bits + 7) / 8;

keydata = malloc(keylen);
    if (keydata == NULL) {
	krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
	return ENOMEM;
    }

ret = encode_otherinfo(context, ai, client, server,
			   enctype, as_req, pk_as_rep, ticket, &other);
    if (ret) {
	free(keydata);
	return ret;
    }

m = EVP_MD_CTX_create();
    if (m == NULL) {
	free(keydata);
	free(other.data);
	krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
	return ENOMEM;
    }

offset = 0;
    counter = 1;
    do {
	unsigned char cdata[4];

EVP_DigestInit_ex(m, md, NULL);
	_krb5_put_int(cdata, counter, 4);
	EVP_DigestUpdate(m, cdata, 4);
	EVP_DigestUpdate(m, dhdata, dhsize);
	EVP_DigestUpdate(m, other.data, other.length);

EVP_DigestFinal_ex(m, shaoutput, NULL);

memcpy((unsigned char *)keydata + offset,
	       shaoutput,
	       min(keylen - offset, EVP_MD_CTX_size(m)));

offset += EVP_MD_CTX_size(m);
	counter++;
    } while(offset < keylen);
    memset(shaoutput, 0, sizeof(shaoutput));

EVP_MD_CTX_destroy(m);
    free(other.data);

ret = krb5_random_to_key(context, enctype, keydata, keylen, key);
    memset(keydata, 0, sizeof(keylen));
    free(keydata);

return ret;
}

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