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(krb5_random_to_key): new function

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@13741 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2004-04-22 08:00:08 +00:00
parent f9a1ff77fe
commit b17bf61cc0
1 changed files with 34 additions and 1 deletions
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35
lib/krb5/crypto.c
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@@ -1608,7 +1608,7 @@ struct checksum_type checksum_none = {
"none",
1,
0,
0,
0,
NONE_checksum,
NULL
};
@@ -3862,6 +3862,39 @@ krb5_get_wrapped_length (krb5_context context,
return wrapped_length (context, crypto, data_len);
}
krb5_error_code
krb5_random_to_key(krb5_context context,
krb5_enctype type,
const void *data,
size_t size,
krb5_keyblock *key)
{
krb5_error_code ret;
struct encryption_type *et = _find_enctype(type);
if(et == NULL) {
krb5_set_error_string(context, "encryption type %d not supported",
type);
return KRB5_PROG_ETYPE_NOSUPP;
}
if (et->keytype->size > size) {
krb5_set_error_string(context, "encryption key %s needs %d bytes "
"of random to make an encryption key out of it",
et->name, et->keytype->size);
return KRB5_PROG_ETYPE_NOSUPP;
}
ret = krb5_data_alloc(&key->keyvalue, et->keytype->size);
if(ret)
return ret;
key->keytype = type;
memcpy(key->keyvalue.data, data, et->keytype->size);
#if 0
if (et->random_to_key)
ret = (*et->random_to_key)(context, key, data, size);
#endif
return 0;
}
#ifdef CRYPTO_DEBUG
static krb5_error_code