core/util/keywrap - AES KEY WRAP as defined in RFC 3394

Age	Commit message (Collapse)	Author
2020-04-29	Finally got integrate_mkmif working.HEAD master	Paul Selkirk
	Wired up mkey_key to allow the user to specify which key to use (MKM or user-provided key). Wired up mkm_wr_status so we can actually write the status word to MKM. Removed the reset initialization of mkmif_core, since that has its own auto-initialization. I might want to remove init as an input to keywrap_mkmif. Fixed a FSM state-transition write-enable, so it would actually transition states. Changed a 3-bit counter to 4 bits, so it can actually count to 8. And removed several bits of non-functional junk.
2020-03-31	Merge branch 'integrate_mkmif' to master	Paul Selkirk

2020-03-25	Move keywrap from user/js to core/util.	Paul Selkirk
	Also remove the auto_zeroise code, since that's behaving badly, and it's not used anyway in the integrate_mkmif branch.
2019-01-17	Added non-zero default timeout value in core. This fixes the keywrap ↵	Joachim Strömbergson
	problems by not automatically reset the key in the API. Enabled all testcases and disabled excessive debug outputs.
2019-01-17	Debugging keywrap after auto_zeroise. Now the core starts processing as ↵	Joachim Strömbergson
	expected.
2019-01-17	Adding key timeout output port to allow core to inform the top level wrapper ↵	Joachim Strömbergson
	that timeout has occured. Added functionality to zeroise API key registers when timout has happened. Updated all auto_zeroise test cases to check that API key registers are properly zeroised.
2019-01-11	Fixed parameterized widths.	Joachim Strömbergson

2019-01-08	Adding the same API hardening to keywrap as implemented for other cores ↵	Joachim Strömbergson
	after the Cryptech audit.
2018-12-20	valid should not be set from reset. There is no valid data.	Joachim Strömbergson

2018-12-13	Fixed some bugs in auto-zeroise functionality. Now it really zeroises key ↵	Joachim Strömbergson
	automatically. It seems to work, but needs a bit more testing.
2018-12-11	Zeroisation of wrapper key registers. Adding reset of key_loaded register.	Joachim Strömbergson

2018-12-09	Adding support for SW to keep loaded key alive by reading status. Adding ↵	Joachim Strömbergson
	support for SW to trigger zeroisation of a loaded key.
2018-12-07	Adding a more sane default timeout value.	Joachim Strömbergson

2018-12-07	Adding untested code to implement timer controlled automatic zeroisation of ↵	Joachim Strömbergson
	key loaded into the aes core.
2018-12-07	Adding API support for key loaded status and key timeout control. Added ↵	Joachim Strömbergson
	ports in the core to support key status and timeout. Updated core testbench to match the new interface.
2018-12-07	Solved event loop.	Joachim Strömbergson

2018-11-23	Added ability observe mkmif state. Realized that the write operation handler ↵	Joachim Strömbergson
	was under read operation handling. Fixed this and now status write works. We can observe 0xdeadbeef in the memory after status write operation.
2018-11-06	Fixed incorrect address used for the key. Added testcase to verify reading ↵	Joachim Strömbergson
	of status word.
2018-11-06	Trigger read operation when we should read.	Joachim Strömbergson

2018-10-23	Hardened the keywrap API to not allow reads or writes when the core is busy.	Joachim Strömbergson

2018-09-28	Completed syntax debug after integration of new mkmif_core wrapper.	Joachim Strömbergson

2018-09-28	Integrated new mkmif_core wrapper.	Joachim Strömbergson

2018-09-28	Some whitespace cleanup.	Joachim Strömbergson

2018-09-28	Completed the functionality that should be in the wrapper. Now its just ↵	Joachim Strömbergson
	debugging...
2018-09-28	Got all states needed. Added hold registers for address and data to be written.	Joachim Strömbergson

2018-09-28	Adding initial version of mkmif wrapper used by keywrap_core to hide ↵	Joachim Strömbergson
	protocol complexity.
2018-09-25	Added logic to perform status word read operation from the mkm. Adding ↵	Joachim Strömbergson
	interfaces and registers to be able to pass mkm status to host. Updated dut instantiation in core testbench to.
2018-09-25	Updated the keywrap API to support access to MKM status. Updated ↵	Joachim Strömbergson
	keywrap_core to support control of MKM access operations.
2018-09-25	Increased control state space to make room for read and write operations.	Joachim Strömbergson

2018-09-25	Integrate the mkmif_core instead of the mkmif wrapper.	Joachim Strömbergson

2018-09-21	Adding more infrastructure needed for the integrated mkm.	Joachim Strömbergson

2018-09-18	Adding more functionality needed for the mkm integration.	Joachim Strömbergson

2018-09-18	Increasing control state reg to support more states. Adding first states for ↵	Joachim Strömbergson
	read and write key handling.
2018-09-18	Adding API control bits to read and write key.	Joachim Strömbergson

2018-09-18	Moved compile time debug access control of key to the API. Added correct ↵	Joachim Strömbergson
	code to mux key.
2018-09-18	Moved the mkmif instance into the core itself. Added API to read the key if ↵	Joachim Strömbergson
	DEBUG is set.
2018-09-14	Adding instatiation of the mkmif in the keywrap top level wrapper. Updated ↵	Joachim Strömbergson
	testbench anf Makefile to build with instantiated mkmif. The mkmif is not yet used by the keywrap.
2018-09-04	Updated rtl and tb to support parameterized memory size.	Joachim Strömbergson

2018-08-24	We probably want to be able to read data too.	Joachim Strömbergson

2018-08-24	Killed the bank switching.	Joachim Strömbergson

2018-08-24	Performed Verilog parameter magic to make the design scaleable in terms of ↵	Joachim Strömbergson
	capacity. Does not yet work, but at least the linter is fairly happy.
2018-08-23	Adding top level defines for setting size and address bits.	Joachim Strömbergson

2018-08-16	Adding delay cycle to API regs to match the latency for accessing the ↵	Joachim Strömbergson
	blockRAM. Added test case that checks access to the API regs.
2018-07-24	Added explicit width specification for constant to silence truncation warning.	Joachim Strömbergson

2018-07-06	(1) Updated version to reflect status. (2) Minor fix after running sim in ↵	Joachim Strömbergson
	ModelSim.
2018-07-06	Debugged key unwrap. First testcase for unwerap passed. Added some more ↵	Joachim Strömbergson
	debug outputs.
2018-07-06	(1) Fixed dump of core_addr in testbench to actually show the core_addr. ↵	Joachim Strömbergson
	Fixed boundaries for the block counter. Now we don't read mem out of bounds.
2018-07-05	Adding wait state to allow access from memory to complete. Should be ↵	Joachim Strömbergson
	possible to optimize.
2018-07-05	Fixing block counter init bug. Enabling detailed debugging. Fixing minor nits.	Joachim Strömbergson

2018-07-05	Updated keywrap logic to support unwrap. Split state to handle next start in ↵	Joachim Strömbergson
	both wrap and unwrap cases.