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/*
* lib/krb5/krb/crypto_glue.c
*
* Copyright 1996 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
* Exported routines:
* krb5_use_enctype()
* krb5_checksum_size()
* krb5_encrypt_size()
* krb5_calculate_checksum()
* krb5_verify_checksum()
* krb5_encrypt()
* krb5_decrypt()
* krb5_process_key()
* krb5_finish_key()
* krb5_string_to_key()
* krb5_init_random_key()
* krb5_finish_random_key()
* krb5_random_key()
* krb5_eblock_enctype()
*
* Internal library routines:
* is_coll_proof_cksum()
* is_keyed_cksum()
* valid_cksumtype()
* valid_enctype()
*/
#include "k5-int.h"
KRB5_DLLIMP size_t KRB5_CALLCONV
krb5_encrypt_size(length, crypto)
krb5_const size_t length;
krb5_const krb5_cryptosystem_entry FAR * crypto;
{
return krb5_roundup(length + crypto->pad_minimum, crypto->block_length);
}
krb5_boolean KRB5_CALLCONV
valid_enctype(ktype)
krb5_const krb5_enctype ktype;
{
return ((ktype<=krb5_max_enctype) && (ktype>0) && krb5_enctype_array[ktype]);
}
krb5_boolean KRB5_CALLCONV
valid_cksumtype(cktype)
krb5_const krb5_cksumtype cktype;
{
return ((cktype<=krb5_max_cksum) && (cktype>0) && krb5_cksumarray[cktype]);
}
krb5_boolean KRB5_CALLCONV
is_coll_proof_cksum(cktype)
krb5_const krb5_cksumtype cktype;
{
return(krb5_cksumarray[cktype]->is_collision_proof);
}
krb5_boolean KRB5_CALLCONV
is_keyed_cksum(cktype)
krb5_const krb5_cksumtype cktype;
{
return (krb5_cksumarray[cktype]->uses_key);
}
KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
krb5_use_enctype(context, eblock, enctype)
krb5_context context;
krb5_encrypt_block FAR * eblock;
krb5_const krb5_enctype enctype;
{
eblock->crypto_entry = krb5_enctype_array[(enctype)]->system;
return 0;
}
KRB5_DLLIMP size_t KRB5_CALLCONV
krb5_checksum_size(context, cktype)
krb5_context context;
krb5_const krb5_cksumtype cktype;
{
return krb5_cksumarray[cktype]->checksum_length;
}
KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
krb5_calculate_checksum(context, cktype, in, in_length, seed, seed_length, outcksum)
krb5_context context;
krb5_const krb5_cksumtype cktype;
krb5_pointer in;
krb5_const size_t in_length;
krb5_const krb5_pointer seed;
krb5_const size_t seed_length;
krb5_checksum FAR *outcksum;
{
return krb5_x(((*krb5_cksumarray[cktype]->sum_func)),
(in, in_length, seed, seed_length, outcksum));
}
KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
krb5_verify_checksum(context, cktype, cksum, in, in_length, seed, seed_length)
krb5_context context;
krb5_const krb5_cksumtype cktype;
krb5_const krb5_checksum FAR *cksum;
krb5_const krb5_pointer in;
krb5_const size_t in_length;
krb5_const krb5_pointer seed;
krb5_const size_t seed_length;
{
return krb5_x((*krb5_cksumarray[cktype]->sum_verf_func),
(cksum, in, in_length, seed, seed_length));
}
KRB5_DLLIMP krb5_enctype KRB5_CALLCONV
krb5_eblock_enctype(context, eblock)
krb5_context context;
krb5_const krb5_encrypt_block FAR * eblock;
{
return eblock->crypto_entry->proto_enctype;
}
KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
krb5_encrypt(context, inptr, outptr, size, eblock, ivec)
krb5_context context;
krb5_const krb5_pointer inptr;
krb5_pointer outptr;
krb5_const size_t size;
krb5_encrypt_block FAR * eblock;
krb5_pointer ivec;
{
return krb5_x(eblock->crypto_entry->encrypt_func,
(inptr, outptr, size, eblock, ivec));
}
KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
krb5_decrypt(context, inptr, outptr, size, eblock, ivec)
krb5_context context;
krb5_const krb5_pointer inptr;
krb5_pointer outptr;
krb5_const size_t size;
krb5_encrypt_block FAR * eblock;
krb5_pointer ivec;
{
return krb5_x(eblock->crypto_entry->decrypt_func,
(inptr, outptr, size, eblock, ivec));
}
KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
krb5_process_key(context, eblock, key)
krb5_context context;
krb5_encrypt_block FAR * eblock;
krb5_const krb5_keyblock FAR * key;
{
return krb5_x(eblock->crypto_entry->process_key,
(eblock, key));
}
KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
krb5_finish_key(context, eblock)
krb5_context context;
krb5_encrypt_block FAR * eblock;
{
return krb5_x(eblock->crypto_entry->finish_key,(eblock));
}
KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
krb5_string_to_key(context, eblock, keyblock, data, princ)
krb5_context context;
krb5_const krb5_encrypt_block FAR * eblock;
krb5_keyblock FAR * keyblock;
krb5_const krb5_data FAR * data;
krb5_const krb5_data FAR * princ;
{
return krb5_x(eblock->crypto_entry->string_to_key,
(eblock, keyblock, data, princ));
}
KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
krb5_init_random_key(context, eblock, keyblock, ptr)
krb5_context context;
krb5_const krb5_encrypt_block FAR * eblock;
krb5_const krb5_keyblock FAR * keyblock;
krb5_pointer FAR * ptr;
{
return krb5_x(eblock->crypto_entry->init_random_key,
(eblock, keyblock, ptr));
}
KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
krb5_finish_random_key(context, eblock, ptr)
krb5_context context;
krb5_const krb5_encrypt_block FAR * eblock;
krb5_pointer FAR * ptr;
{
return krb5_x(eblock->crypto_entry->finish_random_key,
(eblock, ptr));
}
KRB5_DLLIMP krb5_error_code KRB5_CALLCONV
krb5_random_key(context, eblock, ptr, keyblock)
krb5_context context;
krb5_const krb5_encrypt_block FAR * eblock;
krb5_pointer ptr;
krb5_keyblock FAR * FAR * keyblock;
{
return krb5_x(eblock->crypto_entry->random_key,
(eblock, ptr, keyblock));
}
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