core/math/modexp - Modular exponentiation core

Age	Commit message (Collapse)	Author
2015-06-22	Cleanup of prodcalc.	Joachim Strömbergson

2015-06-22	Adding write control of s_mem for first iteration and adding a new stage in ↵	Joachim Strömbergson
	priority mux.
2015-06-22	Adding mux to allow integrating s_mem init with main adder loop.	Joachim Strömbergson

2015-06-18	Adding iteration flag to be used to remove zero fill of s_mem.	Joachim Strömbergson

2015-06-18	Moved s logic mux control to control fsm.	Joachim Strömbergson

2015-06-18	Correct update after linting.	Joachim Strömbergson

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.