ae77177087
several new kerberos related libraries and applications to FreeBSD:
o kgetcred(1) allows one to manually get a ticket for a particular service.
o kf(1) securily forwards ticket to another host through an authenticated
and encrypted stream.
o kcc(1) is an umbrella program around klist(1), kswitch(1), kgetcred(1)
and other user kerberos operations. klist and kswitch are just symlinks
to kcc(1) now.
o kswitch(1) allows you to easily switch between kerberos credentials if
you're running KCM.
o hxtool(1) is a certificate management tool to use with PKINIT.
o string2key(1) maps a password into key.
o kdigest(8) is a userland tool to access the KDC's digest interface.
o kimpersonate(8) creates a "fake" ticket for a service.
We also now install manpages for some lirbaries that were not installed
before, libheimntlm and libhx509.
- The new HEIMDAL version no longer supports Kerberos 4. All users are
recommended to switch to Kerberos 5.
- Weak ciphers are now disabled by default. To enable DES support (used
by telnet(8)), use "allow_weak_crypto" option in krb5.conf.
- libtelnet, pam_ksu and pam_krb5 are now compiled with error on warnings
disabled due to the function they use (krb5_get_err_text(3)) being
deprecated. I plan to work on this next.
- Heimdal's KDC now require sqlite to operate. We use the bundled version
and install it as libheimsqlite. If some other FreeBSD components will
require it in the future we can rename it to libbsdsqlite and use for these
components as well.
- This is not a latest Heimdal version, the new one was released while I was
working on the update. I will update it to 1.5.2 soon, as it fixes some
important bugs and security issues.
180 lines
6.5 KiB
C
180 lines
6.5 KiB
C
/*
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* Copyright (c) 1997 - 2008 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef HEIMDAL_SMALLER
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#define DES3_OLD_ENCTYPE 1
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#endif
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struct _krb5_key_data {
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krb5_keyblock *key;
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krb5_data *schedule;
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};
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struct _krb5_key_usage;
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struct krb5_crypto_data {
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struct _krb5_encryption_type *et;
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struct _krb5_key_data key;
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int num_key_usage;
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struct _krb5_key_usage *key_usage;
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};
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#define CRYPTO_ETYPE(C) ((C)->et->type)
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/* bits for `flags' below */
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#define F_KEYED 1 /* checksum is keyed */
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#define F_CPROOF 2 /* checksum is collision proof */
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#define F_DERIVED 4 /* uses derived keys */
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#define F_VARIANT 8 /* uses `variant' keys (6.4.3) */
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#define F_PSEUDO 16 /* not a real protocol type */
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#define F_SPECIAL 32 /* backwards */
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#define F_DISABLED 64 /* enctype/checksum disabled */
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#define F_WEAK 128 /* enctype is considered weak */
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struct salt_type {
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krb5_salttype type;
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const char *name;
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krb5_error_code (*string_to_key)(krb5_context, krb5_enctype, krb5_data,
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krb5_salt, krb5_data, krb5_keyblock*);
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};
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struct _krb5_key_type {
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krb5_enctype type;
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const char *name;
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size_t bits;
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size_t size;
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size_t schedule_size;
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void (*random_key)(krb5_context, krb5_keyblock*);
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void (*schedule)(krb5_context, struct _krb5_key_type *, struct _krb5_key_data *);
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struct salt_type *string_to_key;
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void (*random_to_key)(krb5_context, krb5_keyblock*, const void*, size_t);
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void (*cleanup)(krb5_context, struct _krb5_key_data *);
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const EVP_CIPHER *(*evp)(void);
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};
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struct _krb5_checksum_type {
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krb5_cksumtype type;
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const char *name;
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size_t blocksize;
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size_t checksumsize;
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unsigned flags;
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krb5_error_code (*checksum)(krb5_context context,
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struct _krb5_key_data *key,
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const void *buf, size_t len,
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unsigned usage,
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Checksum *csum);
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krb5_error_code (*verify)(krb5_context context,
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struct _krb5_key_data *key,
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const void *buf, size_t len,
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unsigned usage,
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Checksum *csum);
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};
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struct _krb5_encryption_type {
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krb5_enctype type;
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const char *name;
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size_t blocksize;
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size_t padsize;
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size_t confoundersize;
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struct _krb5_key_type *keytype;
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struct _krb5_checksum_type *checksum;
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struct _krb5_checksum_type *keyed_checksum;
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unsigned flags;
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krb5_error_code (*encrypt)(krb5_context context,
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struct _krb5_key_data *key,
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void *data, size_t len,
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krb5_boolean encryptp,
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int usage,
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void *ivec);
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size_t prf_length;
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krb5_error_code (*prf)(krb5_context,
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krb5_crypto, const krb5_data *, krb5_data *);
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};
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#define ENCRYPTION_USAGE(U) (((U) << 8) | 0xAA)
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#define INTEGRITY_USAGE(U) (((U) << 8) | 0x55)
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#define CHECKSUM_USAGE(U) (((U) << 8) | 0x99)
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/* Checksums */
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extern struct _krb5_checksum_type _krb5_checksum_none;
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extern struct _krb5_checksum_type _krb5_checksum_crc32;
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extern struct _krb5_checksum_type _krb5_checksum_rsa_md4;
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extern struct _krb5_checksum_type _krb5_checksum_rsa_md4_des;
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extern struct _krb5_checksum_type _krb5_checksum_rsa_md5_des;
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extern struct _krb5_checksum_type _krb5_checksum_rsa_md5_des3;
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extern struct _krb5_checksum_type _krb5_checksum_rsa_md5;
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extern struct _krb5_checksum_type _krb5_checksum_hmac_sha1_des3;
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extern struct _krb5_checksum_type _krb5_checksum_hmac_sha1_aes128;
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extern struct _krb5_checksum_type _krb5_checksum_hmac_sha1_aes256;
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extern struct _krb5_checksum_type _krb5_checksum_hmac_md5;
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extern struct _krb5_checksum_type _krb5_checksum_sha1;
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extern struct _krb5_checksum_type *_krb5_checksum_types[];
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extern int _krb5_num_checksums;
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/* Salts */
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extern struct salt_type _krb5_AES_salt[];
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extern struct salt_type _krb5_arcfour_salt[];
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extern struct salt_type _krb5_des_salt[];
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extern struct salt_type _krb5_des3_salt[];
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extern struct salt_type _krb5_des3_salt_derived[];
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/* Encryption types */
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extern struct _krb5_encryption_type _krb5_enctype_aes256_cts_hmac_sha1;
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extern struct _krb5_encryption_type _krb5_enctype_aes128_cts_hmac_sha1;
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extern struct _krb5_encryption_type _krb5_enctype_des3_cbc_sha1;
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extern struct _krb5_encryption_type _krb5_enctype_des3_cbc_md5;
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extern struct _krb5_encryption_type _krb5_enctype_des3_cbc_none;
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extern struct _krb5_encryption_type _krb5_enctype_arcfour_hmac_md5;
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extern struct _krb5_encryption_type _krb5_enctype_des_cbc_md5;
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extern struct _krb5_encryption_type _krb5_enctype_old_des3_cbc_sha1;
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extern struct _krb5_encryption_type _krb5_enctype_des_cbc_crc;
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extern struct _krb5_encryption_type _krb5_enctype_des_cbc_md4;
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extern struct _krb5_encryption_type _krb5_enctype_des_cbc_md5;
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extern struct _krb5_encryption_type _krb5_enctype_des_cbc_none;
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extern struct _krb5_encryption_type _krb5_enctype_des_cfb64_none;
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extern struct _krb5_encryption_type _krb5_enctype_des_pcbc_none;
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extern struct _krb5_encryption_type _krb5_enctype_null;
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extern struct _krb5_encryption_type *_krb5_etypes[];
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extern int _krb5_num_etypes;
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/* Interface to the EVP crypto layer provided by hcrypto */
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struct _krb5_evp_schedule {
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EVP_CIPHER_CTX ectx;
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EVP_CIPHER_CTX dctx;
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};
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