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Starting to merge decrypt and encrypt for AES64

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This commit is contained in:
David Harris 2024-03-11 00:45:38 -07:00
parent ef896797fd
commit 87ed778763
2 changed files with 49 additions and 0 deletions
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10
src/ieu/bmu/bitmanipalu.sv
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@ -112,6 +112,14 @@ module bitmanipalu import cvw::*; #(parameter cvw_t P) (
zbkx #(P.XLEN) ZBKX(.A(ABMU), .B(BBMU), .ZBKXSelect(ZBBSelect[2:0]), .ZBKXResult);
end else assign ZBKXResult = 0;
// ZKND and ZKNE AES decryption and encryption
if (P.XLEN == 32) begin: zknde
if (P.ZKND_SUPPORTED) aes32d aes32d(.bs(Funct7[6:5]), .rs1(ABMU), .rs2(BBMU), .finalround(ZBBSelect[2]), .result(ZKNDResult));
if (P.ZKNE_SUPPORTED) aes32e aes32e(.bs(Funct7[6:5]), .rs1(ABMU), .rs2(BBMU), .finalround(ZBBSelect[2]), .result(ZKNEResult));
end else
if (P.ZKND_SUPPORTED | P.ZKNE_SUPPORTED) zkn64 ZKND64(.A(ABMU), .B(BBMU), .Funct7, .round(Rs2E[3:0]), .ZKNSelect(ZBBSelect[3:0]), .ZKNDResult, .ZKNEResult); // *** simplify to only one output
/*
// ZKND Unit
if (P.ZKND_SUPPORTED) begin: zknd
if (P.XLEN == 32) aes32d aes32d(.bs(Funct7[6:5]), .rs1(ABMU), .rs2(BBMU), .finalround(ZBBSelect[2]), .result(ZKNDResult));
@ -124,6 +132,8 @@ module bitmanipalu import cvw::*; #(parameter cvw_t P) (
else zkne64 #(P.XLEN) ZKNE64(.A(ABMU), .B(BBMU), .Funct7, .round(Rs2E[3:0]), .ZKNESelect(ZBBSelect[2:0]), .ZKNEResult);
end else assign ZKNEResult = 0;
*/
// ZKNH Unit
if (P.ZKNH_SUPPORTED) begin: zknh
if (P.XLEN == 32) zknh32 ZKNH32(.A(ABMU), .B(BBMU), .ZKNHSelect(ZBBSelect), .ZKNHResult(ZKNHResult));

39
src/ieu/kmu/zkn64.sv Normal file
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@ -0,0 +1,39 @@
///////////////////////////////////////////
// zkn64.sv
//
// Written: kelvin.tran@okstate.edu, james.stine@okstate.edu
// Created: 27 November 2023
// Modified: 31 January 2024
//
// Purpose: NIST AES64 encryption and decryption
//
// A component of the CORE-V-WALLY configurable RISC-V project.
// https://github.com/openhwgroup/cvw
//
// Copyright (C) 2021-24 Harvey Mudd College & Oklahoma State University
//
// SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
//
// Licensed under the Solderpad Hardware License v 2.1 (the “License”); you may not use this file
// except in compliance with the License, or, at your option, the Apache License version 2.0. You
// may obtain a copy of the License at
//
// https://solderpad.org/licenses/SHL-2.1/
//
// Unless required by applicable law or agreed to in writing, any work distributed under the
// License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific language governing permissions
// and limitations under the License.
////////////////////////////////////////////////////////////////////////////////////////////////
module zkn64 (
input logic [63:0] A, B,
input logic [6:0] Funct7,
input logic [3:0] round,
input logic [3:0] ZKNSelect,
output logic [63:0] ZKNDResult, ZKNEResult
);
zknd64 #(64) ZKND64(.A, .B, .Funct7, .round, .ZKNDSelect(ZKNSelect[3:0]), .ZKNDResult); // *** strip out parameter unneded
zkne64 #(64) ZKNE64(.A, .B, .Funct7, .round, .ZKNESelect(ZKNSelect[2:0]), .ZKNEResult);
endmodule