krb5 commit: Add ASN.1 codec for KKDCP's KDC-PROXY-MESSAGE
Greg Hudson
ghudson at MIT.EDU
Mon Jun 2 18:53:29 EDT 2014
https://github.com/krb5/krb5/commit/bb89afd7c59deea855d2818fe36ef7472b4abf2e
commit bb89afd7c59deea855d2818fe36ef7472b4abf2e
Author: Nathaniel McCallum <npmccallum at redhat.com>
Date: Mon Sep 9 14:23:56 2013 -0400
Add ASN.1 codec for KKDCP's KDC-PROXY-MESSAGE
Handle encoding and decoding [MS-KKDCP] proxy messages, including
handling of the additional length bytes. Early versions of [MS-KKDCP]
incorrectly omit that the size of the proxied message is prepended to
the proxied message, as it is when we're using plain TCP, before
encoding the proxy-message structure. This is fixed at least as of
version 2.1 of the spec.
[nalin at redhat.com: add tests]
ticket: 7929
src/include/k5-int.h | 13 ++++++++++++
src/lib/krb5/asn.1/asn1_k_encode.c | 14 ++++++++++++
src/lib/krb5/krb/kfree.c | 10 +++++++++
src/lib/krb5/libkrb5.exports | 3 ++
src/tests/asn.1/krb5_decode_test.c | 18 ++++++++++++++++
src/tests/asn.1/krb5_encode_test.c | 8 +++++++
src/tests/asn.1/ktest.c | 23 +++++++++++++++++++++
src/tests/asn.1/ktest.h | 5 ++++
src/tests/asn.1/ktest_equal.c | 12 +++++++++++
src/tests/asn.1/ktest_equal.h | 3 ++
src/tests/asn.1/reference_encode.out | 1 +
src/tests/asn.1/trval_reference.out | 37 ++++++++++++++++++++++++++++++++++
12 files changed, 147 insertions(+), 0 deletions(-)
diff --git a/src/include/k5-int.h b/src/include/k5-int.h
index 096cd14..8f039ee 100644
--- a/src/include/k5-int.h
+++ b/src/include/k5-int.h
@@ -518,6 +518,12 @@ typedef struct _krb5_pa_otp_req {
krb5_data vendor;
} krb5_pa_otp_req;
+typedef struct _krb5_kkdcp_message {
+ krb5_data kerb_message;
+ krb5_data target_domain;
+ krb5_int32 dclocator_hint;
+} krb5_kkdcp_message;
+
#include <stdlib.h>
#include <string.h>
@@ -898,6 +904,7 @@ void k5_free_otp_tokeninfo(krb5_context context, krb5_otp_tokeninfo *val);
void k5_free_pa_otp_challenge(krb5_context context,
krb5_pa_otp_challenge *val);
void k5_free_pa_otp_req(krb5_context context, krb5_pa_otp_req *val);
+void k5_free_kkdcp_message(krb5_context context, krb5_kkdcp_message *val);
/* #include "krb5/wordsize.h" -- comes in through base-defs.h. */
#include "com_err.h"
@@ -1438,6 +1445,9 @@ encode_krb5_pa_otp_req(const krb5_pa_otp_req *, krb5_data **);
krb5_error_code
encode_krb5_pa_otp_enc_req(const krb5_data *, krb5_data **);
+krb5_error_code
+encode_krb5_kkdcp_message(const krb5_kkdcp_message *, krb5_data **);
+
/*************************************************************************
* End of prototypes for krb5_encode.c
*************************************************************************/
@@ -1608,6 +1618,9 @@ decode_krb5_pa_otp_req(const krb5_data *, krb5_pa_otp_req **);
krb5_error_code
decode_krb5_pa_otp_enc_req(const krb5_data *, krb5_data **);
+krb5_error_code
+decode_krb5_kkdcp_message(const krb5_data *, krb5_kkdcp_message **);
+
struct _krb5_key_data; /* kdb.h */
struct ldap_seqof_key_data {
diff --git a/src/lib/krb5/asn.1/asn1_k_encode.c b/src/lib/krb5/asn.1/asn1_k_encode.c
index 7b9179d..4dc49c2 100644
--- a/src/lib/krb5/asn.1/asn1_k_encode.c
+++ b/src/lib/krb5/asn.1/asn1_k_encode.c
@@ -1711,3 +1711,17 @@ static const struct atype_info *pa_otp_enc_req_fields[] = {
};
DEFSEQTYPE(pa_otp_enc_req, krb5_data, pa_otp_enc_req_fields);
MAKE_CODEC(krb5_pa_otp_enc_req, pa_otp_enc_req);
+
+DEFFIELD(kkdcp_message_0, krb5_kkdcp_message,
+ kerb_message, 0, ostring_data);
+DEFFIELD(kkdcp_message_1, krb5_kkdcp_message,
+ target_domain, 1, opt_gstring_data);
+DEFFIELD(kkdcp_message_2, krb5_kkdcp_message,
+ dclocator_hint, 2, opt_int32);
+static const struct atype_info *kkdcp_message_fields[] = {
+ &k5_atype_kkdcp_message_0, &k5_atype_kkdcp_message_1,
+ &k5_atype_kkdcp_message_2
+};
+DEFSEQTYPE(kkdcp_message, krb5_kkdcp_message,
+ kkdcp_message_fields);
+MAKE_CODEC(krb5_kkdcp_message, kkdcp_message);
diff --git a/src/lib/krb5/krb/kfree.c b/src/lib/krb5/krb/kfree.c
index 32b2151..f86c619 100644
--- a/src/lib/krb5/krb/kfree.c
+++ b/src/lib/krb5/krb/kfree.c
@@ -821,3 +821,13 @@ k5_free_pa_otp_req(krb5_context context, krb5_pa_otp_req *val)
free(val->vendor.data);
free(val);
}
+
+void
+k5_free_kkdcp_message(krb5_context context, krb5_kkdcp_message *val)
+{
+ if (val == NULL)
+ return;
+ free(val->target_domain.data);
+ free(val->kerb_message.data);
+ free(val);
+}
diff --git a/src/lib/krb5/libkrb5.exports b/src/lib/krb5/libkrb5.exports
index 863ec02..2d0852d 100644
--- a/src/lib/krb5/libkrb5.exports
+++ b/src/lib/krb5/libkrb5.exports
@@ -25,6 +25,7 @@ decode_krb5_iakerb_finished
decode_krb5_iakerb_header
decode_krb5_kdc_req_body
decode_krb5_otp_tokeninfo
+decode_krb5_kkdcp_message
decode_krb5_pa_enc_ts
decode_krb5_pa_for_user
decode_krb5_pa_fx_fast_reply
@@ -72,6 +73,7 @@ encode_krb5_iakerb_finished
encode_krb5_iakerb_header
encode_krb5_kdc_req_body
encode_krb5_otp_tokeninfo
+encode_krb5_kkdcp_message
encode_krb5_pa_enc_ts
encode_krb5_pa_for_user
encode_krb5_pa_fx_fast_reply
@@ -113,6 +115,7 @@ k5_expand_path_tokens
k5_expand_path_tokens_extra
k5_free_algorithm_identifier
k5_free_otp_tokeninfo
+k5_free_kkdcp_message
k5_free_pa_otp_challenge
k5_free_pa_otp_req
k5_free_serverlist
diff --git a/src/tests/asn.1/krb5_decode_test.c b/src/tests/asn.1/krb5_decode_test.c
index 8719978..f12bb16 100644
--- a/src/tests/asn.1/krb5_decode_test.c
+++ b/src/tests/asn.1/krb5_decode_test.c
@@ -54,6 +54,8 @@ static void ktest_free_reply_key_pack(krb5_context context,
static void ktest_free_reply_key_pack_draft9(krb5_context context,
krb5_reply_key_pack_draft9 *val);
#endif
+static void ktest_free_kkdcp_message(krb5_context context,
+ krb5_kkdcp_message *val);
int main(argc, argv)
int argc;
@@ -1077,6 +1079,13 @@ int main(argc, argv)
ktest_empty_data(&ref);
}
+ /****************************************************************/
+ /* decode_krb5_kkdcp_message */
+ {
+ setup(krb5_kkdcp_message,ktest_make_sample_kkdcp_message);
+ decode_run("kkdcp_message","","30 82 01 FC A0 82 01 EC 04 82 01 E8 6A 82 01 E4 30 82 01 E0 A1 03 02 01 05 A2 03 02 01 0A A3 26 30 24 30 10 A1 03 02 01 0D A2 09 04 07 70 61 2D 64 61 74 61 30 10 A1 03 02 01 0D A2 09 04 07 70 61 2D 64 61 74 61 A4 82 01 AA 30 82 01 A6 A0 07 03 05 00 FE DC BA 98 A1 1A 30 18 A0 03 02 01 01 A1 11 30 0F 1B 06 68 66 74 73 61 69 1B 05 65 78 74 72 61 A2 10 1B 0E 41 54 48 45 4E 41 2E 4D 49 54 2E 45 44 55 A3 1A 30 18 A0 03 02 01 01 A1 11 30 0F 1B 06 68 66 74 73 61 69 1B 05 65 78 74 72 61 A4 11 18 0F 31 39 39 34 30 36 31 30 30 36 30 33 31 37 5A A5 11 18 0F 31 39 39 34 30 36 31 30 30 36 30 33 31 37 5A A6 11 18 0F 31 39 39 34 30 36 31 30 30 36 30 33 31 37 5A A7 03 02 01 2A A8 08 30 06 02 01 00 02 01 01 A9 20 30 1E 30 0D A0 03 02 01 02 A1 06 04 04 12 D0 00 23 30 0D A0 03 02 01 02 A1 06 04 04 12 D0 00 23 AA 25 30 23 A0 03 02 01 00 A1 03 02 01 05 A2 17 04 15 6B 72 62 41 53 4E 2E 31 20 74 65 73 74 20 6D 65 73 73 61 67 65 AB 81 BF 30 81 BC 61 5C 30 5A A!
0 03 02 01 05 A1 10 1B 0E 41 54 48 45 4E 41 2E 4D 49 54 2E 45 44 55 A2 1A 30 18 A0 03 02 01 01 A1 11 30 0F 1B 06 68 66 74 73 61 69 1B 05 65 78 74 72 61 A3 25 30 23 A0 03 02 01 00 A1 03 02 01 05 A2 17 04 15 6B 72 62 41 53 4E 2E 31 20 74 65 73 74 20 6D 65 73 73 61 67 65 61 5C 30 5A A0 03 02 01 05 A1 10 1B 0E 41 54 48 45 4E 41 2E 4D 49 54 2E 45 44 55 A2 1A 30 18 A0 03 02 01 01 A1 11 30 0F 1B 06 68 66 74 73 61 69 1B 05 65 78 74 72 61 A3 25 30 23 A0 03 02 01 00 A1 03 02 01 05 A2 17 04 15 6B 72 62 41 53 4E 2E 31 20 74 65 73 74 20 6D 65 73 73 61 67 65 A1 0A 1B 08 6B 72 62 35 64 61 74 61",decode_krb5_kkdcp_message,ktest_equal_kkdcp_message,ktest_free_kkdcp_message);
+ }
+
#ifndef DISABLE_PKINIT
/****************************************************************/
@@ -1262,3 +1271,12 @@ ktest_free_reply_key_pack_draft9(krb5_context context,
}
#endif /* not DISABLE_PKINIT */
+
+static void
+ktest_free_kkdcp_message(krb5_context context,
+ krb5_kkdcp_message *val)
+{
+ if (val)
+ ktest_empty_kkdcp_message(val);
+ free(val);
+}
diff --git a/src/tests/asn.1/krb5_encode_test.c b/src/tests/asn.1/krb5_encode_test.c
index 638f6fe..3ba8684 100644
--- a/src/tests/asn.1/krb5_encode_test.c
+++ b/src/tests/asn.1/krb5_encode_test.c
@@ -734,6 +734,14 @@ main(argc, argv)
encode_run(d, "pa_otp_enc_req", "", encode_krb5_pa_otp_enc_req);
ktest_empty_data(&d);
}
+ /****************************************************************/
+ /* encode_krb5_kkdcp_message */
+ {
+ krb5_kkdcp_message info;
+ ktest_make_sample_kkdcp_message(&info);
+ encode_run(info, "kkdcp_message", "", encode_krb5_kkdcp_message);
+ ktest_empty_kkdcp_message(&info);
+ }
#ifndef DISABLE_PKINIT
/****************************************************************/
/* encode_krb5_pa_pk_as_req */
diff --git a/src/tests/asn.1/ktest.c b/src/tests/asn.1/ktest.c
index aa41fd8..4ce9f70 100644
--- a/src/tests/asn.1/ktest.c
+++ b/src/tests/asn.1/ktest.c
@@ -933,6 +933,21 @@ ktest_make_sample_ldap_seqof_key_data(ldap_seqof_key_data *p)
}
#endif
+void
+ktest_make_sample_kkdcp_message(krb5_kkdcp_message *p)
+{
+ krb5_kdc_req req;
+ krb5_data *message;
+
+ ktest_make_sample_kdc_req(&req);
+ req.msg_type = KRB5_AS_REQ;
+ encode_krb5_as_req(&req, &message);
+ p->kerb_message = *message;
+ free(message);
+ ktest_empty_kdc_req(&req);
+ ktest_make_sample_data(&(p->target_domain));
+ p->dclocator_hint = 0;
+}
/****************************************************************/
/* destructors */
@@ -1731,3 +1746,11 @@ ktest_empty_ldap_seqof_key_data(krb5_context ctx, ldap_seqof_key_data *p)
free(p->key_data);
}
#endif
+
+void
+ktest_empty_kkdcp_message(krb5_kkdcp_message *p)
+{
+ ktest_empty_data(&p->kerb_message);
+ ktest_empty_data(&p->target_domain);
+ p->dclocator_hint = -1;
+}
diff --git a/src/tests/asn.1/ktest.h b/src/tests/asn.1/ktest.h
index 67a6c69..a9ebb77 100644
--- a/src/tests/asn.1/ktest.h
+++ b/src/tests/asn.1/ktest.h
@@ -119,6 +119,9 @@ void ktest_make_sample_pkinit_supp_pub_info(krb5_pkinit_supp_pub_info *p);
#ifdef ENABLE_LDAP
void ktest_make_sample_ldap_seqof_key_data(ldap_seqof_key_data *p);
#endif
+
+void ktest_make_sample_kkdcp_message(krb5_kkdcp_message *p);
+
/*----------------------------------------------------------------------*/
void ktest_empty_authorization_data(krb5_authdata **ad);
@@ -200,6 +203,8 @@ void ktest_empty_pkinit_supp_pub_info(krb5_pkinit_supp_pub_info *p);
void ktest_empty_ldap_seqof_key_data(krb5_context, ldap_seqof_key_data *p);
#endif
+void ktest_empty_kkdcp_message(krb5_kkdcp_message *p);
+
extern krb5_context test_context;
extern char *sample_principal_name;
diff --git a/src/tests/asn.1/ktest_equal.c b/src/tests/asn.1/ktest_equal.c
index 4e71242..39c35b5 100644
--- a/src/tests/asn.1/ktest_equal.c
+++ b/src/tests/asn.1/ktest_equal.c
@@ -1039,3 +1039,15 @@ ktest_equal_reply_key_pack_draft9(krb5_reply_key_pack_draft9 *ref,
}
#endif /* not DISABLE_PKINIT */
+
+int
+ktest_equal_kkdcp_message(krb5_kkdcp_message *ref, krb5_kkdcp_message *var)
+{
+ int p = TRUE;
+ if (ref == var) return TRUE;
+ else if (ref == NULL || var == NULL) return FALSE;
+ p = p && data_eq(ref->kerb_message, var->kerb_message);
+ p = p && data_eq(ref->target_domain, var->target_domain);
+ p = p && (ref->dclocator_hint == var->dclocator_hint);
+ return p;
+}
diff --git a/src/tests/asn.1/ktest_equal.h b/src/tests/asn.1/ktest_equal.h
index e75f86a..491653f 100644
--- a/src/tests/asn.1/ktest_equal.h
+++ b/src/tests/asn.1/ktest_equal.h
@@ -145,4 +145,7 @@ generic(ktest_equal_reply_key_pack, krb5_reply_key_pack);
generic(ktest_equal_reply_key_pack_draft9, krb5_reply_key_pack_draft9);
#endif /* not DISABLE_PKINIT */
+int ktest_equal_kkdcp_message(krb5_kkdcp_message *ref,
+ krb5_kkdcp_message *var);
+
#endif
diff --git a/src/tests/asn.1/reference_encode.out b/src/tests/asn.1/reference_encode.out
index 315e25b..b737da3 100644
--- a/src/tests/asn.1/reference_encode.out
+++ b/src/tests/asn.1/reference_encode.out
@@ -68,3 +68,4 @@ encode_krb5_pa_otp_challenge: 30 81 A5 80 08 6D 61 78 6E 6F 6E 63 65 81 0B 74 65
encode_krb5_pa_otp_req(optionals NULL): 30 2C 80 05 00 00 00 00 00 A2 23 A0 03 02 01 00 A1 03 02 01 05 A2 17 04 15 6B 72 62 41 53 4E 2E 31 20 74 65 73 74 20 6D 65 73 73 61 67 65
encode_krb5_pa_otp_req: 30 81 B9 80 05 00 60 00 00 00 81 05 6E 6F 6E 63 65 A2 23 A0 03 02 01 00 A1 03 02 01 05 A2 17 04 15 6B 72 62 41 53 4E 2E 31 20 74 65 73 74 20 6D 65 73 73 61 67 65 A3 0B 06 09 60 86 48 01 65 03 04 02 01 84 02 03 E8 85 05 66 72 6F 67 73 86 0A 6D 79 66 69 72 73 74 70 69 6E 87 05 68 61 72 6B 21 88 0F 31 39 39 34 30 36 31 30 30 36 30 33 31 37 5A 89 03 33 34 36 8A 01 02 8B 09 79 6F 75 72 74 6F 6B 65 6E 8C 28 75 72 6E 3A 69 65 74 66 3A 70 61 72 61 6D 73 3A 78 6D 6C 3A 6E 73 3A 6B 65 79 70 72 6F 76 3A 70 73 6B 63 3A 68 6F 74 70 8D 0B 45 78 61 6D 70 6C 65 63 6F 72 70
encode_krb5_pa_otp_enc_req: 30 0A 80 08 6B 72 62 35 64 61 74 61
+encode_krb5_kkdcp_message: 30 82 01 FC A0 82 01 EC 04 82 01 E8 6A 82 01 E4 30 82 01 E0 A1 03 02 01 05 A2 03 02 01 0A A3 26 30 24 30 10 A1 03 02 01 0D A2 09 04 07 70 61 2D 64 61 74 61 30 10 A1 03 02 01 0D A2 09 04 07 70 61 2D 64 61 74 61 A4 82 01 AA 30 82 01 A6 A0 07 03 05 00 FE DC BA 98 A1 1A 30 18 A0 03 02 01 01 A1 11 30 0F 1B 06 68 66 74 73 61 69 1B 05 65 78 74 72 61 A2 10 1B 0E 41 54 48 45 4E 41 2E 4D 49 54 2E 45 44 55 A3 1A 30 18 A0 03 02 01 01 A1 11 30 0F 1B 06 68 66 74 73 61 69 1B 05 65 78 74 72 61 A4 11 18 0F 31 39 39 34 30 36 31 30 30 36 30 33 31 37 5A A5 11 18 0F 31 39 39 34 30 36 31 30 30 36 30 33 31 37 5A A6 11 18 0F 31 39 39 34 30 36 31 30 30 36 30 33 31 37 5A A7 03 02 01 2A A8 08 30 06 02 01 00 02 01 01 A9 20 30 1E 30 0D A0 03 02 01 02 A1 06 04 04 12 D0 00 23 30 0D A0 03 02 01 02 A1 06 04 04 12 D0 00 23 AA 25 30 23 A0 03 02 01 00 A1 03 02 01 05 A2 17 04 15 6B 72 62 41 53 4E 2E 31 20 74 65 73 74 20 6D 65 73 73 61 67 65 AB 81 BF 30 81 BC 61 5C 30 5A A0 03 02 01 0!
5 A1 10 1B 0E 41 54 48 45 4E 41 2E 4D 49 54 2E 45 44 55 A2 1A 30 18 A0 03 02 01 01 A1 11 30 0F 1B 06 68 66 74 73 61 69 1B 05 65 78 74 72 61 A3 25 30 23 A0 03 02 01 00 A1 03 02 01 05 A2 17 04 15 6B 72 62 41 53 4E 2E 31 20 74 65 73 74 20 6D 65 73 73 61 67 65 61 5C 30 5A A0 03 02 01 05 A1 10 1B 0E 41 54 48 45 4E 41 2E 4D 49 54 2E 45 44 55 A2 1A 30 18 A0 03 02 01 01 A1 11 30 0F 1B 06 68 66 74 73 61 69 1B 05 65 78 74 72 61 A3 25 30 23 A0 03 02 01 00 A1 03 02 01 05 A2 17 04 15 6B 72 62 41 53 4E 2E 31 20 74 65 73 74 20 6D 65 73 73 61 67 65 A1 0A 1B 08 6B 72 62 35 64 61 74 61
diff --git a/src/tests/asn.1/trval_reference.out b/src/tests/asn.1/trval_reference.out
index 461021e..599580c 100644
--- a/src/tests/asn.1/trval_reference.out
+++ b/src/tests/asn.1/trval_reference.out
@@ -1478,3 +1478,40 @@ encode_krb5_pa_otp_enc_req:
[Sequence/Sequence Of]
. [0] <8>
6b 72 62 35 64 61 74 61 krb5data
+
+encode_krb5_kkdcp_message:
+
+[Sequence/Sequence Of]
+. [0] [Octet String] <488>
+ 6a 82 01 e4 30 82 01 e0 a1 03 02 01 05 a2 03 02 j...0...........
+ 01 0a a3 26 30 24 30 10 a1 03 02 01 0d a2 09 04 ...&0$0.........
+ 07 70 61 2d 64 61 74 61 30 10 a1 03 02 01 0d a2 .pa-data0.......
+ 09 04 07 70 61 2d 64 61 74 61 a4 82 01 aa 30 82 ...pa-data....0.
+ 01 a6 a0 07 03 05 00 fe dc ba 98 a1 1a 30 18 a0 .............0..
+ 03 02 01 01 a1 11 30 0f 1b 06 68 66 74 73 61 69 ......0...hftsai
+ 1b 05 65 78 74 72 61 a2 10 1b 0e 41 54 48 45 4e ..extra....ATHEN
+ 41 2e 4d 49 54 2e 45 44 55 a3 1a 30 18 a0 03 02 A.MIT.EDU..0....
+ 01 01 a1 11 30 0f 1b 06 68 66 74 73 61 69 1b 05 ....0...hftsai..
+ 65 78 74 72 61 a4 11 18 0f 31 39 39 34 30 36 31 extra....1994061
+ 30 30 36 30 33 31 37 5a a5 11 18 0f 31 39 39 34 0060317Z....1994
+ 30 36 31 30 30 36 30 33 31 37 5a a6 11 18 0f 31 0610060317Z....1
+ 39 39 34 30 36 31 30 30 36 30 33 31 37 5a a7 03 9940610060317Z..
+ 02 01 2a a8 08 30 06 02 01 00 02 01 01 a9 20 30 ..*..0........ 0
+ 1e 30 0d a0 03 02 01 02 a1 06 04 04 12 d0 00 23 .0.............#
+ 30 0d a0 03 02 01 02 a1 06 04 04 12 d0 00 23 aa 0.............#.
+ 25 30 23 a0 03 02 01 00 a1 03 02 01 05 a2 17 04 %0#.............
+ 15 6b 72 62 41 53 4e 2e 31 20 74 65 73 74 20 6d .krbASN.1 test m
+ 65 73 73 61 67 65 ab 81 bf 30 81 bc 61 5c 30 5a essage...0..a\0Z
+ a0 03 02 01 05 a1 10 1b 0e 41 54 48 45 4e 41 2e .........ATHENA.
+ 4d 49 54 2e 45 44 55 a2 1a 30 18 a0 03 02 01 01 MIT.EDU..0......
+ a1 11 30 0f 1b 06 68 66 74 73 61 69 1b 05 65 78 ..0...hftsai..ex
+ 74 72 61 a3 25 30 23 a0 03 02 01 00 a1 03 02 01 tra.%0#.........
+ 05 a2 17 04 15 6b 72 62 41 53 4e 2e 31 20 74 65 .....krbASN.1 te
+ 73 74 20 6d 65 73 73 61 67 65 61 5c 30 5a a0 03 st messagea\0Z..
+ 02 01 05 a1 10 1b 0e 41 54 48 45 4e 41 2e 4d 49 .......ATHENA.MI
+ 54 2e 45 44 55 a2 1a 30 18 a0 03 02 01 01 a1 11 T.EDU..0........
+ 30 0f 1b 06 68 66 74 73 61 69 1b 05 65 78 74 72 0...hftsai..extr
+ 61 a3 25 30 23 a0 03 02 01 00 a1 03 02 01 05 a2 a.%0#...........
+ 17 04 15 6b 72 62 41 53 4e 2e 31 20 74 65 73 74 ...krbASN.1 test
+ 20 6d 65 73 73 61 67 65 message
+. [1] [General string] "krb5data"
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