summaryrefslogtreecommitdiff
path: root/doc/cha-tokens.texi
diff options
context:
space:
mode:
authorDaniel Kahn Gillmor <dkg@fifthhorseman.net>2013-03-12 19:19:12 -0400
committerDaniel Kahn Gillmor <dkg@fifthhorseman.net>2013-03-12 19:19:12 -0400
commit7381666124d30961ecf5c77fdfc0977942d6862f (patch)
tree38e82ecf5a84810e25f4673de8b18427671fc83a /doc/cha-tokens.texi
parenta9a3a26ac27d2b003c4d245d32b59c92aa5ded35 (diff)
downloadgnutls-7381666124d30961ecf5c77fdfc0977942d6862f.tar.gz
Document mechanism used for *_key_id() creation.
For the rationale behind this, see the gnutls-devl thread 'X.509 "Key Identifiers" in GnuTLS' found either at http://lists.gnutls.org/pipermail/gnutls-devel/2013-March/006182.html and http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/6674
Diffstat (limited to 'doc/cha-tokens.texi')
-rw-r--r--doc/cha-tokens.texi7
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/cha-tokens.texi b/doc/cha-tokens.texi
index 444927f952..88dbc40ef7 100644
--- a/doc/cha-tokens.texi
+++ b/doc/cha-tokens.texi
@@ -88,6 +88,13 @@ Additional functions are available that will return
information over a public key, as well as a function that given a public
key fingerprint would provide a memorable sketch.
+The key_id and random_art functions are based on an SHA1 digest of the
+the public key canonicalized as a DER-formatted, ASN.1-encoded
+subjectPublicKeyInfo object. This is different from the ``common
+method'' described by section 4.2.1.2 of @xcite{RFC5280} in that
+GnuTLS includes the algorithmIdentifier (algorithm plus parameters) in
+addition to the raw key material itself.
+
@showfuncD{gnutls_pubkey_get_pk_algorithm,gnutls_pubkey_get_preferred_hash_algorithm,gnutls_pubkey_get_key_id,gnutls_random_art}
To export the key-specific parameters, or obtain a unique key ID the following functions are provided.