Github_Repos/cvw
1
0
Fork 1
mirror of https://github.com/openhwgroup/cvw synced 2025-02-11 06:05:49 +00:00
Code Issues Packages Projects Releases Wiki Activity

Final cleanup tonight

Browse Source
This commit is contained in:
David Harris 2024-03-11 01:40:47 -07:00
parent 8af25a45e6
commit 096f4090ac
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/ieu/kmu/zknde32.sv
View File

@ -39,7 +39,7 @@ module zknde32 import cvw::*; #(parameter cvw_t P) (
logic [31:0] ZKNEResult, ZKNDResult, rotin, rotout; logic [31:0] ZKNEResult, ZKNDResult, rotin, rotout;
// Initial shamt and Sbox input selection steps shared between encrypt and decrypt // Initial shamt and Sbox input selection steps shared between encrypt and decrypt
assign shamt = {Funct7[6:5], 3'b0}; // shamt = bs * 8 (convert bytes to bits) assign shamt = {Funct7[6:5], 3'b0}; // shamt = bs * 8 (convert bytes to bits)
assign SboxIn = B[shamt +: 8]; // select byte bs of rs2 assign SboxIn = B[shamt +: 8]; // select byte bs of rs2
// Handle logic specific to encrypt or decrypt // Handle logic specific to encrypt or decrypt
@ -56,5 +56,5 @@ module zknde32 import cvw::*; #(parameter cvw_t P) (
// final rotate and XOR steps shared between encrypt and decrypt // final rotate and XOR steps shared between encrypt and decrypt
rotate #(32) mrot(rotin, shamt, rotout); // Rotate the mixcolumns output left by shamt (bs * 8) rotate #(32) mrot(rotin, shamt, rotout); // Rotate the mixcolumns output left by shamt (bs * 8)
assign ZKNDEResult = A ^ rotout; // xor with running value assign ZKNDEResult = A ^ rotout; // xor with running value (A = rs1)
endmodule endmodule