diff options
Diffstat (limited to 'sys/kgssapi/krb5/kcrypto.h')
| -rw-r--r-- | sys/kgssapi/krb5/kcrypto.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/sys/kgssapi/krb5/kcrypto.h b/sys/kgssapi/krb5/kcrypto.h new file mode 100644 index 0000000..5486641 --- /dev/null +++ b/sys/kgssapi/krb5/kcrypto.h @@ -0,0 +1,154 @@ +/*- + * Copyright (c) 2008 Isilon Inc http://www.isilon.com/ + * Authors: Doug Rabson <dfr@rabson.org> + * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org> + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#include <sys/_iovec.h> + +#define ETYPE_NULL 0 +#define ETYPE_DES_CBC_CRC 1 +#define ETYPE_DES_CBC_MD4 2 +#define ETYPE_DES_CBC_MD5 3 +#define ETYPE_DES3_CBC_MD5 5 +#define ETYPE_OLD_DES3_CBC_SHA1 7 +#define ETYPE_DES3_CBC_SHA1 16 +#define ETYPE_AES128_CTS_HMAC_SHA1_96 17 +#define ETYPE_AES256_CTS_HMAC_SHA1_96 18 +#define ETYPE_ARCFOUR_HMAC_MD5 23 +#define ETYPE_ARCFOUR_HMAC_MD5_56 24 + +/* + * Key usages for des3-cbc-sha1 tokens + */ +#define KG_USAGE_SEAL 22 +#define KG_USAGE_SIGN 23 +#define KG_USAGE_SEQ 24 + +/* + * Key usages for RFC4121 tokens + */ +#define KG_USAGE_ACCEPTOR_SEAL 22 +#define KG_USAGE_ACCEPTOR_SIGN 23 +#define KG_USAGE_INITIATOR_SEAL 24 +#define KG_USAGE_INITIATOR_SIGN 25 + +struct krb5_key_state; + +typedef void init_func(struct krb5_key_state *ks); +typedef void destroy_func(struct krb5_key_state *ks); +typedef void set_key_func(struct krb5_key_state *ks, const void *in); +typedef void random_to_key_func(struct krb5_key_state *ks, const void *in); +typedef void encrypt_func(const struct krb5_key_state *ks, + struct mbuf *inout, size_t skip, size_t len, void *ivec, size_t ivlen); +typedef void checksum_func(const struct krb5_key_state *ks, int usage, + struct mbuf *inout, size_t skip, size_t inlen, size_t outlen); + +struct krb5_encryption_class { + const char *ec_name; + int ec_type; + int ec_flags; +#define EC_DERIVED_KEYS 1 + size_t ec_blocklen; + size_t ec_msgblocklen; + size_t ec_checksumlen; + size_t ec_keybits; /* key length in bits */ + size_t ec_keylen; /* size of key in memory */ + init_func *ec_init; + destroy_func *ec_destroy; + set_key_func *ec_set_key; + random_to_key_func *ec_random_to_key; + encrypt_func *ec_encrypt; + encrypt_func *ec_decrypt; + checksum_func *ec_checksum; +}; + +struct krb5_key_state { + const struct krb5_encryption_class *ks_class; + volatile u_int ks_refs; + void *ks_key; + void *ks_priv; +}; + +extern struct krb5_encryption_class krb5_des_encryption_class; +extern struct krb5_encryption_class krb5_des3_encryption_class; +extern struct krb5_encryption_class krb5_aes128_encryption_class; +extern struct krb5_encryption_class krb5_aes256_encryption_class; +extern struct krb5_encryption_class krb5_arcfour_encryption_class; +extern struct krb5_encryption_class krb5_arcfour_56_encryption_class; + +static __inline void +krb5_set_key(struct krb5_key_state *ks, const void *keydata) +{ + + ks->ks_class->ec_set_key(ks, keydata); +} + +static __inline void +krb5_random_to_key(struct krb5_key_state *ks, const void *keydata) +{ + + ks->ks_class->ec_random_to_key(ks, keydata); +} + +static __inline void +krb5_encrypt(const struct krb5_key_state *ks, struct mbuf *inout, + size_t skip, size_t len, void *ivec, size_t ivlen) +{ + + ks->ks_class->ec_encrypt(ks, inout, skip, len, ivec, ivlen); +} + +static __inline void +krb5_decrypt(const struct krb5_key_state *ks, struct mbuf *inout, + size_t skip, size_t len, void *ivec, size_t ivlen) +{ + + ks->ks_class->ec_decrypt(ks, inout, skip, len, ivec, ivlen); +} + +static __inline void +krb5_checksum(const struct krb5_key_state *ks, int usage, + struct mbuf *inout, size_t skip, size_t inlen, size_t outlen) +{ + + ks->ks_class->ec_checksum(ks, usage, inout, skip, inlen, outlen); +} + +extern struct krb5_encryption_class * + krb5_find_encryption_class(int etype); +extern struct krb5_key_state * + krb5_create_key(const struct krb5_encryption_class *ec); +extern void krb5_free_key(struct krb5_key_state *ks); +extern struct krb5_key_state * + krb5_derive_key(struct krb5_key_state *inkey, + void *constant, size_t constantlen); +extern struct krb5_key_state * + krb5_get_encryption_key(struct krb5_key_state *basekey, int usage); +extern struct krb5_key_state * + krb5_get_integrity_key(struct krb5_key_state *basekey, int usage); +extern struct krb5_key_state * + krb5_get_checksum_key(struct krb5_key_state *basekey, int usage); |
