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authorDr. David von Oheimb <dev@ddvo.net>2024-03-11 13:06:13 +0100
committerDr. David von Oheimb <dev@ddvo.net>2024-06-17 10:54:03 +0200
commit40948c4c74099ae21843d9265dfe65f13cb9e6c5 (patch)
tree34c6c86e46eac20e11c94f4308a61d7b2cff6d93
parentb893ceef2feb6b64504446f984ee5a57d2b69d1f (diff)
OSSL_CMP_{validate_msg,CTX_new}.pod: add warning notes on OSSL_CMP_OPT_PERMIT_TA_IN_EXTRACERTS_FOR_IR
Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Neil Horman <nhorman@openssl.org> (Merged from https://github.com/openssl/openssl/pull/23814)
-rw-r--r--doc/man3/OSSL_CMP_CTX_new.pod5
-rw-r--r--doc/man3/OSSL_CMP_validate_msg.pod7
2 files changed, 10 insertions, 2 deletions
diff --git a/doc/man3/OSSL_CMP_CTX_new.pod b/doc/man3/OSSL_CMP_CTX_new.pod
index 9d117e204a..2f8e8dee51 100644
--- a/doc/man3/OSSL_CMP_CTX_new.pod
+++ b/doc/man3/OSSL_CMP_CTX_new.pod
@@ -343,6 +343,11 @@ RFC 4210.
Allow retrieving a trust anchor from extraCerts and using that
to validate the certificate chain of an IP message.
+ This is a quirk option added to support 3GPP TS 33.310.
+
+ Note that using this option is dangerous as the certificate obtained
+ this way has not been authenticated (at least not at CMP level).
+ Taking it over as a trust anchor implements trust-on-first-use (TOFU).
=item B<OSSL_CMP_OPT_NO_CACHE_EXTRACERTS>
diff --git a/doc/man3/OSSL_CMP_validate_msg.pod b/doc/man3/OSSL_CMP_validate_msg.pod
index c416a49d77..2fe94dabc8 100644
--- a/doc/man3/OSSL_CMP_validate_msg.pod
+++ b/doc/man3/OSSL_CMP_validate_msg.pod
@@ -42,11 +42,14 @@ using any trust store set via L<OSSL_CMP_CTX_set0_trusted(3)>.
If the option OSSL_CMP_OPT_PERMIT_TA_IN_EXTRACERTS_FOR_IR was set by calling
L<OSSL_CMP_CTX_set_option(3)>, for an Initialization Response (IP) message
-any self-issued certificate from the I<msg> extraCerts field may also be used
-as trust anchor for the path verification of an acceptable cert if it can be
+any self-issued certificate from the I<msg> extraCerts field may be used
+as a trust anchor for the path verification of an 'acceptable' cert if it can be
used also to validate the issued certificate returned in the IP message. This is
according to TS 33.310 [Network Domain Security (NDS); Authentication Framework
(AF)] document specified by the The 3rd Generation Partnership Project (3GPP).
+Note that using this option is dangerous as the certificate obtained this way
+has not been authenticated (at least not at CMP level).
+Taking it over as a trust anchor implements trust-on-first-use (TOFU).
Any cert that has been found as described above is cached and tried first when
validating the signatures of subsequent messages in the same transaction.