diff options
Diffstat (limited to 'src/lib/krb5/krb/kdc_rep_dc.c')
| -rw-r--r-- | src/lib/krb5/krb/kdc_rep_dc.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/lib/krb5/krb/kdc_rep_dc.c b/src/lib/krb5/krb/kdc_rep_dc.c new file mode 100644 index 000000000000..0aedcb7a4f4b --- /dev/null +++ b/src/lib/krb5/krb/kdc_rep_dc.c @@ -0,0 +1,77 @@ +/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */ +/* lib/krb5/krb/kdc_rep_dc.c */ +/* + * Copyright 1990 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. Furthermore if you modify this software you must label + * your software as modified software and not distribute it in such a + * fashion that it might be confused with the original M.I.T. software. + * 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. + */ + +#include "k5-int.h" + +/* + * Decrypt the encrypted portion of the KDC_REP message, using the key + * passed. + * + */ + +/*ARGSUSED*/ +krb5_error_code +krb5_kdc_rep_decrypt_proc(krb5_context context, const krb5_keyblock *key, krb5_const_pointer decryptarg, krb5_kdc_rep *dec_rep) +{ + krb5_error_code retval; + krb5_data scratch; + krb5_enc_kdc_rep_part *local_encpart; + krb5_keyusage usage; + + if (decryptarg) { + usage = *(const krb5_keyusage *) decryptarg; + } else { + usage = KRB5_KEYUSAGE_AS_REP_ENCPART; + } + + /* set up scratch decrypt/decode area */ + + scratch.length = dec_rep->enc_part.ciphertext.length; + if (!(scratch.data = malloc(dec_rep->enc_part.ciphertext.length))) { + return(ENOMEM); + } + + /*dec_rep->enc_part.enctype;*/ + + if ((retval = krb5_c_decrypt(context, key, usage, 0, &dec_rep->enc_part, + &scratch))) { + free(scratch.data); + return(retval); + } + +#define clean_scratch() {memset(scratch.data, 0, scratch.length); \ + free(scratch.data);} + + /* and do the decode */ + retval = decode_krb5_enc_kdc_rep_part(&scratch, &local_encpart); + clean_scratch(); + if (retval) + return retval; + + dec_rep->enc_part2 = local_encpart; + + return 0; +} |
