core/math/modexp - Modular exponentiation core

Age	Commit message (Collapse)	Author
2015-06-18	Restored version of montprod to a version that actually works.	Joachim Strömbergson

2015-06-18	Combined case statements to make it easier to follow the sequences.	Joachim Strömbergson

2015-06-18	Update after linting after cycle collapsing.	Joachim Strömbergson

2015-06-17	(1) Collapsed the sm and sa adder states. Thisimoproves performance for ↵	Joachim Strömbergson
	modexp with 3%. (2) Updated montprod testbench to not use the now removed states. (3) Minor code cleanup to make it easier to work with for further improvements.
2015-06-17	(1) Cleaned up bit select for operand b and a. (2) Fixed name of loop ↵	Joachim Strömbergson
	counter. (3) Reordered processes to main datapath first.
2015-06-17	Fixed order of states.	Joachim Strömbergson

2015-06-16	Merge of s_mux and s_write to allow cycle collapsing.	Joachim Strömbergson

2015-06-16	Fixed final big testcase to match python model.	Joachim Strömbergson

2015-06-16	Collapsing cycles for loop counter. Updating testbench to match removed cycles.	Joachim Strömbergson

2015-06-16	Collapsed done. Removes one cycle from each montprod.	Joachim Strömbergson

2015-06-16	Fixed non trivial yet fairly short testcases.	Joachim Strömbergson

2015-06-15	cleanup of s mem write control.	Joachim Strömbergson

2015-06-15	Fixed the carry registers.	Joachim Strömbergson

2015-06-15	Fixed prev reg:	Joachim Strömbergson

2015-06-15	(1) Fixing up write address register fo s mem. (2) Cleanup of loop counter.	Joachim Strömbergson

2015-06-15	Cleanup and fixing name in preparation for cycle crunch.	Joachim Strömbergson

2015-06-15	Fixed baseline.	Joachim Strömbergson

2015-06-10	More cleanup. Adding a lot of compile flags to be able to silence the testbench.	Joachim Strömbergson

2015-06-10	Added cycle counter to the montprod testbench to measure the execution time.	Joachim Strömbergson

2015-06-03	Adding the encipher/verify test case with 1024 bit RSA key by Rob.	Joachim Strömbergson

2015-06-03	Adding test for for public exponent operation based on Rob 1024 bit key.	Joachim Strömbergson

2015-06-02	Adding sign testcase with 1024 bit operands from real RSA key.	Joachim Strömbergson

2015-06-02	Minor fix for better layout.	Joachim Strömbergson

2015-06-02	Padded Rob 1024 test with one 32-bit word. This makes the model work for the ↵	Joachim Strömbergson
	test case.
2015-06-02	Cleanup of result checking code to make it easier to see any errors.	Joachim Strömbergson

2015-06-02	Updated header to emphasis that this is a top level wrapper.	Joachim Strömbergson

2015-06-02	Refactored into core and top.	Joachim Strömbergson

2015-06-02	Fixd nits in test case. Added simple line break to clean up.	Joachim Strömbergson

2015-06-02	Adding 1024 bit test case from Rob to verify that it works in the model.	Joachim Strömbergson

2015-05-24	Minor layout fixes.	Joachim Strömbergson

2015-05-24	Fixed names.	Joachim Strömbergson

2015-05-24	Adding two more signing test cases with e=65537 and explicit lengths for ↵	Joachim Strömbergson
	exponent and modulus, message.
2015-05-22	Updated the C model with version of modexp that supports explicit, separate ↵	Joachim Strömbergson
	lengths for exponent and modulus. Also added new test cases, cleaned up code etc.
2015-05-22	Removed obsoleted temp parameter.	Joachim Strömbergson

2015-05-22	Removed file that should not have been in the repo.	Joachim Strömbergson

2015-05-21	Added internal cycle counter. Added API addresses to extract cycle counter ↵	Joachim Strömbergson
	value. Moved reset of start reg to beginning of FSM.
2015-05-20	(1) Removed unneeded default state. (2) Cleanup of testbench and added a ↵	Joachim Strömbergson
	bigger test case.
2015-05-20	Adding new memories with internal pointers.	Joachim Strömbergson

2015-05-20	Changed to using modexp length register and removed the common length register.	Joachim Strömbergson

2015-05-19	Updated TB to use access ports. Added missing invalidate of residue when ↵	Joachim Strömbergson
	modulus is updated. Minor cleanup.
2015-05-08	Fixed RH operand size.	Joachim Strömbergson

2015-04-27	Updated header with info about bit lengths supported.	Joachim Strömbergson

2015-04-27	Adding localparam for debugging that had gone missing.	Joachim Strömbergson

2015-04-27	Updating modexp core to v 0.50. This version contains a working core that ↵	Joachim Strömbergson
	can perform sign and verify with big keys/values. The core builds ok in Altera and Xilinx FPGA tools. This commit also includes a new testgenerator capable of generating testbench for modexp with autgenerated test data of different lengths. The README has been updated with status and implementation results in for different FPGA devices.
2015-04-24	(1) Adding auto generated testbench for verilog. (2) Update of the test ↵	Joachim Strömbergson
	generator. (3) Update of the Makefile to run test generator.
2015-04-23	Adding a generator for tests to the modexp model and core.	Joachim Strömbergson

2015-04-21	Fixed incorrect types.	Joachim Strömbergson

2015-04-21	Update of modexp to include more of the integration of residue calculator. ↵	Joachim Strömbergson
	Update of shl and shr to simplify code. shl and shr could be replaced by functions.
2015-04-20	Adding testbench for the residue calculator.	Joachim Strömbergson

2015-04-20	(1) Modexp with better API. (2) Adding working residue module. (3) Adding ↵	Joachim Strömbergson
	new shift32 with carry module needed by the residue module.