trust: Add p11_asn1_read() and p11_asn1_free() functions

Some helpers for commonly used ASN.1 related stuff.

1 files changed, 6 insertions, 0 deletions

diff --git a/trust/asn1.h b/trust/asn1.h
index 1bd7dd1..a5f9caf 100644
--- a/trust/asn1.h
+++ b/trust/asn1.h
@@ -55,6 +55,12 @@ node_asn *       p11_asn1_create                    (p11_dict *asn1_defs,
 unsigned char *  p11_asn1_encode                    (node_asn *asn,
                                                      size_t *der_len);
 
+void *           p11_asn1_read                      (node_asn *asn,
+                                                     const char *field,
+                                                     size_t *length);
+
+void             p11_asn1_free                      (void *asn);
+
 ssize_t          p11_asn1_tlv_length                (const unsigned char *data,
                                                      size_t length);