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-rw-r--r--crypto/heimdal/lib/gssapi/wrap.c454
1 files changed, 0 insertions, 454 deletions
diff --git a/crypto/heimdal/lib/gssapi/wrap.c b/crypto/heimdal/lib/gssapi/wrap.c
deleted file mode 100644
index a0f9d2ff52ea..000000000000
--- a/crypto/heimdal/lib/gssapi/wrap.c
+++ /dev/null
@@ -1,454 +0,0 @@
-/*
- * Copyright (c) 1997 - 2003 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 "gssapi_locl.h"
-
-RCSID("$Id: wrap.c,v 1.21.2.1 2003/09/18 22:05:45 lha Exp $");
-
-OM_uint32
-gss_krb5_get_localkey(const gss_ctx_id_t context_handle,
- krb5_keyblock **key)
-{
- krb5_keyblock *skey;
-
- krb5_auth_con_getlocalsubkey(gssapi_krb5_context,
- context_handle->auth_context,
- &skey);
- if(skey == NULL)
- krb5_auth_con_getremotesubkey(gssapi_krb5_context,
- context_handle->auth_context,
- &skey);
- if(skey == NULL)
- krb5_auth_con_getkey(gssapi_krb5_context,
- context_handle->auth_context,
- &skey);
- if(skey == NULL)
- return GSS_S_FAILURE;
- *key = skey;
- return 0;
-}
-
-static OM_uint32
-sub_wrap_size (
- OM_uint32 req_output_size,
- OM_uint32 * max_input_size,
- int blocksize,
- int extrasize
- )
-{
- size_t len, total_len, padlength;
- padlength = blocksize - (req_output_size % blocksize);
- len = req_output_size + 8 + padlength + extrasize;
- gssapi_krb5_encap_length(len, &len, &total_len);
- *max_input_size = (OM_uint32)total_len;
- return GSS_S_COMPLETE;
-}
-
-OM_uint32
-gss_wrap_size_limit (
- OM_uint32 * minor_status,
- const gss_ctx_id_t context_handle,
- int conf_req_flag,
- gss_qop_t qop_req,
- OM_uint32 req_output_size,
- OM_uint32 * max_input_size
- )
-{
- krb5_keyblock *key;
- OM_uint32 ret;
- krb5_keytype keytype;
-
- ret = gss_krb5_get_localkey(context_handle, &key);
- if (ret) {
- gssapi_krb5_set_error_string ();
- *minor_status = ret;
- return GSS_S_FAILURE;
- }
- krb5_enctype_to_keytype (gssapi_krb5_context, key->keytype, &keytype);
-
- switch (keytype) {
- case KEYTYPE_DES :
- case KEYTYPE_ARCFOUR:
- ret = sub_wrap_size(req_output_size, max_input_size, 8, 22);
- break;
- case KEYTYPE_DES3 :
- ret = sub_wrap_size(req_output_size, max_input_size, 8, 34);
- break;
- default :
- *minor_status = KRB5_PROG_ETYPE_NOSUPP;
- ret = GSS_S_FAILURE;
- break;
- }
- krb5_free_keyblock (gssapi_krb5_context, key);
- *minor_status = 0;
- return ret;
-}
-
-static OM_uint32
-wrap_des
- (OM_uint32 * minor_status,
- const gss_ctx_id_t context_handle,
- int conf_req_flag,
- gss_qop_t qop_req,
- const gss_buffer_t input_message_buffer,
- int * conf_state,
- gss_buffer_t output_message_buffer,
- krb5_keyblock *key
- )
-{
- u_char *p;
- MD5_CTX md5;
- u_char hash[16];
- des_key_schedule schedule;
- des_cblock deskey;
- des_cblock zero;
- int i;
- int32_t seq_number;
- size_t len, total_len, padlength, datalen;
-
- padlength = 8 - (input_message_buffer->length % 8);
- datalen = input_message_buffer->length + padlength + 8;
- len = datalen + 22;
- gssapi_krb5_encap_length (len, &len, &total_len);
-
- output_message_buffer->length = total_len;
- output_message_buffer->value = malloc (total_len);
- if (output_message_buffer->value == NULL) {
- *minor_status = ENOMEM;
- return GSS_S_FAILURE;
- }
-
- p = gssapi_krb5_make_header(output_message_buffer->value,
- len,
- "\x02\x01"); /* TOK_ID */
-
- /* SGN_ALG */
- memcpy (p, "\x00\x00", 2);
- p += 2;
- /* SEAL_ALG */
- if(conf_req_flag)
- memcpy (p, "\x00\x00", 2);
- else
- memcpy (p, "\xff\xff", 2);
- p += 2;
- /* Filler */
- memcpy (p, "\xff\xff", 2);
- p += 2;
-
- /* fill in later */
- memset (p, 0, 16);
- p += 16;
-
- /* confounder + data + pad */
- krb5_generate_random_block(p, 8);
- memcpy (p + 8, input_message_buffer->value,
- input_message_buffer->length);
- memset (p + 8 + input_message_buffer->length, padlength, padlength);
-
- /* checksum */
- MD5_Init (&md5);
- MD5_Update (&md5, p - 24, 8);
- MD5_Update (&md5, p, datalen);
- MD5_Final (hash, &md5);
-
- memset (&zero, 0, sizeof(zero));
- memcpy (&deskey, key->keyvalue.data, sizeof(deskey));
- des_set_key (&deskey, schedule);
- des_cbc_cksum ((void *)hash, (void *)hash, sizeof(hash),
- schedule, &zero);
- memcpy (p - 8, hash, 8);
-
- /* sequence number */
- krb5_auth_con_getlocalseqnumber (gssapi_krb5_context,
- context_handle->auth_context,
- &seq_number);
-
- p -= 16;
- p[0] = (seq_number >> 0) & 0xFF;
- p[1] = (seq_number >> 8) & 0xFF;
- p[2] = (seq_number >> 16) & 0xFF;
- p[3] = (seq_number >> 24) & 0xFF;
- memset (p + 4,
- (context_handle->more_flags & LOCAL) ? 0 : 0xFF,
- 4);
-
- des_set_key (&deskey, schedule);
- des_cbc_encrypt ((void *)p, (void *)p, 8,
- schedule, (des_cblock *)(p + 8), DES_ENCRYPT);
-
- krb5_auth_con_setlocalseqnumber (gssapi_krb5_context,
- context_handle->auth_context,
- ++seq_number);
-
- /* encrypt the data */
- p += 16;
-
- if(conf_req_flag) {
- memcpy (&deskey, key->keyvalue.data, sizeof(deskey));
-
- for (i = 0; i < sizeof(deskey); ++i)
- deskey[i] ^= 0xf0;
- des_set_key (&deskey, schedule);
- memset (&zero, 0, sizeof(zero));
- des_cbc_encrypt ((void *)p,
- (void *)p,
- datalen,
- schedule,
- &zero,
- DES_ENCRYPT);
-
- memset (deskey, 0, sizeof(deskey));
- memset (schedule, 0, sizeof(schedule));
- }
- if(conf_state != NULL)
- *conf_state = conf_req_flag;
- *minor_status = 0;
- return GSS_S_COMPLETE;
-}
-
-static OM_uint32
-wrap_des3
- (OM_uint32 * minor_status,
- const gss_ctx_id_t context_handle,
- int conf_req_flag,
- gss_qop_t qop_req,
- const gss_buffer_t input_message_buffer,
- int * conf_state,
- gss_buffer_t output_message_buffer,
- krb5_keyblock *key
- )
-{
- u_char *p;
- u_char seq[8];
- int32_t seq_number;
- size_t len, total_len, padlength, datalen;
- u_int32_t ret;
- krb5_crypto crypto;
- Checksum cksum;
- krb5_data encdata;
-
- padlength = 8 - (input_message_buffer->length % 8);
- datalen = input_message_buffer->length + padlength + 8;
- len = datalen + 34;
- gssapi_krb5_encap_length (len, &len, &total_len);
-
- output_message_buffer->length = total_len;
- output_message_buffer->value = malloc (total_len);
- if (output_message_buffer->value == NULL) {
- *minor_status = ENOMEM;
- return GSS_S_FAILURE;
- }
-
- p = gssapi_krb5_make_header(output_message_buffer->value,
- len,
- "\x02\x01"); /* TOK_ID */
-
- /* SGN_ALG */
- memcpy (p, "\x04\x00", 2); /* HMAC SHA1 DES3-KD */
- p += 2;
- /* SEAL_ALG */
- if(conf_req_flag)
- memcpy (p, "\x02\x00", 2); /* DES3-KD */
- else
- memcpy (p, "\xff\xff", 2);
- p += 2;
- /* Filler */
- memcpy (p, "\xff\xff", 2);
- p += 2;
-
- /* calculate checksum (the above + confounder + data + pad) */
-
- memcpy (p + 20, p - 8, 8);
- krb5_generate_random_block(p + 28, 8);
- memcpy (p + 28 + 8, input_message_buffer->value,
- input_message_buffer->length);
- memset (p + 28 + 8 + input_message_buffer->length, padlength, padlength);
-
- ret = krb5_crypto_init(gssapi_krb5_context, key, 0, &crypto);
- if (ret) {
- gssapi_krb5_set_error_string ();
- free (output_message_buffer->value);
- *minor_status = ret;
- return GSS_S_FAILURE;
- }
-
- ret = krb5_create_checksum (gssapi_krb5_context,
- crypto,
- KRB5_KU_USAGE_SIGN,
- 0,
- p + 20,
- datalen + 8,
- &cksum);
- krb5_crypto_destroy (gssapi_krb5_context, crypto);
- if (ret) {
- gssapi_krb5_set_error_string ();
- free (output_message_buffer->value);
- *minor_status = ret;
- return GSS_S_FAILURE;
- }
-
- /* zero out SND_SEQ + SGN_CKSUM in case */
- memset (p, 0, 28);
-
- memcpy (p + 8, cksum.checksum.data, cksum.checksum.length);
- free_Checksum (&cksum);
-
- /* sequence number */
- krb5_auth_con_getlocalseqnumber (gssapi_krb5_context,
- context_handle->auth_context,
- &seq_number);
-
- seq[0] = (seq_number >> 0) & 0xFF;
- seq[1] = (seq_number >> 8) & 0xFF;
- seq[2] = (seq_number >> 16) & 0xFF;
- seq[3] = (seq_number >> 24) & 0xFF;
- memset (seq + 4,
- (context_handle->more_flags & LOCAL) ? 0 : 0xFF,
- 4);
-
-
- ret = krb5_crypto_init(gssapi_krb5_context, key, ETYPE_DES3_CBC_NONE,
- &crypto);
- if (ret) {
- free (output_message_buffer->value);
- *minor_status = ret;
- return GSS_S_FAILURE;
- }
-
- {
- des_cblock ivec;
-
- memcpy (&ivec, p + 8, 8);
- ret = krb5_encrypt_ivec (gssapi_krb5_context,
- crypto,
- KRB5_KU_USAGE_SEQ,
- seq, 8, &encdata,
- &ivec);
- }
- krb5_crypto_destroy (gssapi_krb5_context, crypto);
- if (ret) {
- gssapi_krb5_set_error_string ();
- free (output_message_buffer->value);
- *minor_status = ret;
- return GSS_S_FAILURE;
- }
-
- assert (encdata.length == 8);
-
- memcpy (p, encdata.data, encdata.length);
- krb5_data_free (&encdata);
-
- krb5_auth_con_setlocalseqnumber (gssapi_krb5_context,
- context_handle->auth_context,
- ++seq_number);
-
- /* encrypt the data */
- p += 28;
-
- if(conf_req_flag) {
- krb5_data tmp;
-
- ret = krb5_crypto_init(gssapi_krb5_context, key,
- ETYPE_DES3_CBC_NONE, &crypto);
- if (ret) {
- gssapi_krb5_set_error_string ();
- free (output_message_buffer->value);
- *minor_status = ret;
- return GSS_S_FAILURE;
- }
- ret = krb5_encrypt(gssapi_krb5_context, crypto, KRB5_KU_USAGE_SEAL,
- p, datalen, &tmp);
- krb5_crypto_destroy(gssapi_krb5_context, crypto);
- if (ret) {
- gssapi_krb5_set_error_string ();
- free (output_message_buffer->value);
- *minor_status = ret;
- return GSS_S_FAILURE;
- }
- assert (tmp.length == datalen);
-
- memcpy (p, tmp.data, datalen);
- krb5_data_free(&tmp);
- }
- if(conf_state != NULL)
- *conf_state = conf_req_flag;
- *minor_status = 0;
- return GSS_S_COMPLETE;
-}
-
-OM_uint32 gss_wrap
- (OM_uint32 * minor_status,
- const gss_ctx_id_t context_handle,
- int conf_req_flag,
- gss_qop_t qop_req,
- const gss_buffer_t input_message_buffer,
- int * conf_state,
- gss_buffer_t output_message_buffer
- )
-{
- krb5_keyblock *key;
- OM_uint32 ret;
- krb5_keytype keytype;
-
- ret = gss_krb5_get_localkey(context_handle, &key);
- if (ret) {
- gssapi_krb5_set_error_string ();
- *minor_status = ret;
- return GSS_S_FAILURE;
- }
- krb5_enctype_to_keytype (gssapi_krb5_context, key->keytype, &keytype);
-
- switch (keytype) {
- case KEYTYPE_DES :
- ret = wrap_des (minor_status, context_handle, conf_req_flag,
- qop_req, input_message_buffer, conf_state,
- output_message_buffer, key);
- break;
- case KEYTYPE_DES3 :
- ret = wrap_des3 (minor_status, context_handle, conf_req_flag,
- qop_req, input_message_buffer, conf_state,
- output_message_buffer, key);
- break;
- case KEYTYPE_ARCFOUR:
- ret = _gssapi_wrap_arcfour (minor_status, context_handle, conf_req_flag,
- qop_req, input_message_buffer, conf_state,
- output_message_buffer, key);
- break;
- default :
- *minor_status = KRB5_PROG_ETYPE_NOSUPP;
- ret = GSS_S_FAILURE;
- break;
- }
- krb5_free_keyblock (gssapi_krb5_context, key);
- return ret;
-}