boringssl

History

David Benjamin 2f8ea545a6 Reimplement OBJ_obj2txt. The old implementation had a lot of size_t/int confusion. It also accepted non-minimally-encoded OIDs. Unlike the old implementation, the new one does not fall back to BIGNUMs and does not attempt to pretty-print OIDs with components which do not fit in a uint64_t. Add tests for these cases. With this new implementation, hopefully we'll have a much easier time enabling MSVC's size_t truncation warning later. Change-Id: I602102b97cf9b02d874644f8ef67fe9bac70e45e Reviewed-on: https://boringssl-review.googlesource.com/9131 Reviewed-by: Adam Langley <agl@google.com>		2016-08-06 00:45:56 +00:00
..
CMakeLists.txt	Fix a bug in obj_dat.pl and add basic crypto/obj tests.	2016-04-26 15:19:26 +00:00
obj_dat.h	Fix a bug in obj_dat.pl and add basic crypto/obj tests.	2016-04-26 15:19:26 +00:00
obj_dat.pl	Fix a bug in obj_dat.pl and add basic crypto/obj tests.	2016-04-26 15:19:26 +00:00
obj_mac.num	Elliptic curve + post-quantum key exchange	2016-05-19 22:19:14 +00:00
obj_test.cc	Reimplement OBJ_obj2txt.	2016-08-06 00:45:56 +00:00
obj_xref.c
obj_xref.h
obj_xref.pl
obj_xref.txt
obj.c	Reimplement OBJ_obj2txt.	2016-08-06 00:45:56 +00:00
objects.pl	Rename obj_mac.h to nid.h and make it a multiply-includable header.	2016-03-31 20:45:35 +00:00
objects.txt	Elliptic curve + post-quantum key exchange	2016-05-19 22:19:14 +00:00
README	Rename obj_mac.h to nid.h and make it a multiply-includable header.	2016-03-31 20:45:35 +00:00

README

OID information is generated via a series of perl scripts. In order, the full
list of commands to run are:

        perl objects.pl objects.txt obj_mac.num ../../include/openssl/nid.h
        perl obj_dat.pl ../../include/openssl/nid.h obj_dat.h
        perl obj_xref.pl obj_mac.num obj_xref.txt > obj_xref.h

objects.txt contains the list of all built-in OIDs. It is processed by
objects.pl to output obj_mac.num and nid.h. obj_mac.num is the list of NID
values for each OID. This is an input/output parameter so NID values are stable
across regenerations. nid.h is the header which defines macros for all the
built-in OIDs in C.

nid.h is read by obj_dat.pl to generate obj_dat.h. obj_dat.h contains the
ASN1_OBJECTs corresponding to built-in OIDs themselves along with lookup tables
for search by short name, OID, etc.

obj_mac.num and obj_xref.txt are read by obj_xref.pl to generate
obj_xref.h. obj_xref.txt links signature OIDs to corresponding public key
algorithms and digests. obj_xref.h contains lookup tables for querying this
information in both directions.

Dependency graph:

                        objects.txt
                            |
                            V
                       [objects.pl] <--+
                         /      \      |
                        V        V     |
                     nid.h     obj_mac.num  obj_xref.txt
                      |              \      /
                      V               V    V
                 [obj_dat.pl]      [obj_xref.pl]
                      |                  |
                      V                  V
                  obj_dat.h         obj_xref.h