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[/] [hight/] [trunk/] [rtl/] [CRYPTO_PATH.v] - Blame information for rev 2

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//////////////////////////////////////////////////////////////////////
////                                                              ////
////  Main datapath for HIGHT Crypto Core                         ////
////                                                              ////
////  This file is part of the HIGHT Crypto Core project          ////
////  http://github.com/OpenSoCPlus/hight_crypto_core             ////
////  http://www.opencores.org/project,hight                      ////
////                                                              ////
////  Description                                                 ////
////  __description__                                             ////
////                                                              ////
////  Author(s):                                                  ////
////      - JoonSoo Ha, json.ha@gmail.com                         ////
////      - Younjoo Kim, younjookim.kr@gmail.com                  ////
////                                                              ////
//////////////////////////////////////////////////////////////////////
////                                                              ////
//// Copyright (C) 2015 Authors, OpenSoCPlus and OPENCORES.ORG    ////
////                                                              ////
//// This source file may be used and distributed without         ////
//// restriction provided that this copyright statement is not    ////
//// removed from the file and that any derivative work contains  ////
//// the original copyright notice and the associated disclaimer. ////
////                                                              ////
//// This source file is free software; you can redistribute it   ////
//// and/or modify it under the terms of the GNU Lesser General   ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any   ////
//// later version.                                               ////
////                                                              ////
//// This source is distributed in the hope that it will be       ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied   ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////
//// PURPOSE.  See the GNU Lesser General Public License for more ////
//// details.                                                     ////
////                                                              ////
//// You should have received a copy of the GNU Lesser General    ////
//// Public License along with this source; if not, download it   ////
//// from http://www.opencores.org/lgpl.shtml                     ////
////                                                              ////
//////////////////////////////////////////////////////////////////////
 
module CRYPTO_PATH(
        rstn             ,
        clk              ,
 
        i_op             ,
 
        i_wrsk           ,
 
        i_text_in        ,
 
        i_xf_sel         ,
        i_rf_final       ,
 
        o_text_out
);
 
 
//=====================================
//
//          PARAMETERS 
//
//=====================================
 
 
//=====================================
//
//          I/O PORTS 
//
//=====================================
input        rstn           ;
input        clk            ;
 
input        i_op           ;
 
input[31:0]  i_wrsk         ;
 
input[63:0]  i_text_in      ;
 
input[2:0]   i_xf_sel       ;
input        i_rf_final     ;
 
output[63:0] o_text_out     ;
 
 
//=====================================
//
//          REGISTERS
//
//=====================================
// xf register
reg[63:0]   r_xf         ;
 
 
//=====================================
//
//          WIRES
//
//=====================================
// wf_in mux
wire[63:0]  w_wf_in_mux  ;
// w_wf_out
wire[63:0]  w_wf_out     ;
// w_rf_out
wire[63:0]  w_rf_out     ;
// xf mux
wire[63:0]  w_xf_mux   ;
 
//=====================================
//
//          MAIN
//
//=====================================
// WF(WhiteningFunction) instance
WF u_WF(
        .i_op        ( i_op        )  ,
        .i_wk        ( i_wrsk      )  ,
        .i_wf_in     ( w_wf_in_mux )  ,
 
        .o_wf_out    ( w_wf_out    )
);
 
// RF(RoundFunction) instance
RF u_RF(
        .i_op        ( i_op        )  ,
        .i_rf_final  ( i_rf_final  )  ,
        .i_rf_in     ( r_xf        )  ,
        .i_rsk       ( i_wrsk      )  ,
 
        .o_rf_out    ( w_rf_out    )
);
 
// wf_in mux 
assign      w_wf_in_mux = (~i_xf_sel[2]) ? r_xf      :  // i_xf_sel[2] == 0
                                           i_text_in ;  // i_xf_sel[2] == 1
 
// xf mux
assign      w_xf_mux   = (i_xf_sel[1:0] == 2'b00) ? r_xf      : // i_xf_sel[1:0] == 0
                         (i_xf_sel[1:0] == 2'b01) ? w_wf_out  : // i_xf_sel[1:0] == 1
                                                    w_rf_out  ; // i_xf_sel[1:0] == 2, 3
 
// xf register 
always @(negedge rstn or posedge clk)
        if(~rstn)
                r_xf <= #1 64'h0     ;
        else
                r_xf <= #1 w_xf_mux  ;
 
// o_text_out
assign      o_text_out = r_xf;
 
endmodule
 
 

Line No.	Rev	Author	Line
1	2	truemind	`//////////////////////////////////////////////////////////////////////`
2			`//// ////`
3			`//// Main datapath for HIGHT Crypto Core ////`
4			`//// ////`
5			`//// This file is part of the HIGHT Crypto Core project ////`
6			`//// http://github.com/OpenSoCPlus/hight_crypto_core ////`
7			`//// http://www.opencores.org/project,hight ////`
8			`//// ////`
9			`//// Description ////`
10			`//// __description__ ////`
11			`//// ////`
12			`//// Author(s): ////`
13			`//// - JoonSoo Ha, json.ha@gmail.com ////`
14			`//// - Younjoo Kim, younjookim.kr@gmail.com ////`
15			`//// ////`
16			`//////////////////////////////////////////////////////////////////////`
17			`//// ////`
18			`//// Copyright (C) 2015 Authors, OpenSoCPlus and OPENCORES.ORG ////`
19			`//// ////`
20			`//// This source file may be used and distributed without ////`
21			`//// restriction provided that this copyright statement is not ////`
22			`//// removed from the file and that any derivative work contains ////`
23			`//// the original copyright notice and the associated disclaimer. ////`
24			`//// ////`
25			`//// This source file is free software; you can redistribute it ////`
26			`//// and/or modify it under the terms of the GNU Lesser General ////`
27			`//// Public License as published by the Free Software Foundation; ////`
28			`//// either version 2.1 of the License, or (at your option) any ////`
29			`//// later version. ////`
30			`//// ////`
31			`//// This source is distributed in the hope that it will be ////`
32			`//// useful, but WITHOUT ANY WARRANTY; without even the implied ////`
33			`//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////`
34			`//// PURPOSE. See the GNU Lesser General Public License for more ////`
35			`//// details. ////`
36			`//// ////`
37			`//// You should have received a copy of the GNU Lesser General ////`
38			`//// Public License along with this source; if not, download it ////`
39			`//// from http://www.opencores.org/lgpl.shtml ////`
40			`//// ////`
41			`//////////////////////////////////////////////////////////////////////`
42
43			`module CRYPTO_PATH(`
44			`rstn ,`
45			`clk ,`
46
47			`i_op ,`
48
49			`i_wrsk ,`
50
51			`i_text_in ,`
52
53			`i_xf_sel ,`
54			`i_rf_final ,`
55
56			`o_text_out`
57			`);`
58
59
60			`//=====================================`
61			`//`
62			`// PARAMETERS`
63			`//`
64			`//=====================================`
65
66
67			`//=====================================`
68			`//`
69			`// I/O PORTS`
70			`//`
71			`//=====================================`
72			`input rstn ;`
73			`input clk ;`
74
75			`input i_op ;`
76
77			`input[31:0] i_wrsk ;`
78
79			`input[63:0] i_text_in ;`
80
81			`input[2:0] i_xf_sel ;`
82			`input i_rf_final ;`
83
84			`output[63:0] o_text_out ;`
85
86
87			`//=====================================`
88			`//`
89			`// REGISTERS`
90			`//`
91			`//=====================================`
92			`// xf register`
93			`reg[63:0] r_xf ;`
94
95
96			`//=====================================`
97			`//`
98			`// WIRES`
99			`//`
100			`//=====================================`
101			`// wf_in mux`
102			`wire[63:0] w_wf_in_mux ;`
103			`// w_wf_out`
104			`wire[63:0] w_wf_out ;`
105			`// w_rf_out`
106			`wire[63:0] w_rf_out ;`
107			`// xf mux`
108			`wire[63:0] w_xf_mux ;`
109
110			`//=====================================`
111			`//`
112			`// MAIN`
113			`//`
114			`//=====================================`
115			`// WF(WhiteningFunction) instance`
116			`WF u_WF(`
117			`.i_op ( i_op ) ,`
118			`.i_wk ( i_wrsk ) ,`
119			`.i_wf_in ( w_wf_in_mux ) ,`
120
121			`.o_wf_out ( w_wf_out )`
122			`);`
123
124			`// RF(RoundFunction) instance`
125			`RF u_RF(`
126			`.i_op ( i_op ) ,`
127			`.i_rf_final ( i_rf_final ) ,`
128			`.i_rf_in ( r_xf ) ,`
129			`.i_rsk ( i_wrsk ) ,`
130
131			`.o_rf_out ( w_rf_out )`
132			`);`
133
134			`// wf_in mux`
135			`assign w_wf_in_mux = (~i_xf_sel[2]) ? r_xf : // i_xf_sel[2] == 0`
136			`i_text_in ; // i_xf_sel[2] == 1`
137
138			`// xf mux`
139			`assign w_xf_mux = (i_xf_sel[1:0] == 2'b00) ? r_xf : // i_xf_sel[1:0] == 0`
140			`(i_xf_sel[1:0] == 2'b01) ? w_wf_out : // i_xf_sel[1:0] == 1`
141			`w_rf_out ; // i_xf_sel[1:0] == 2, 3`
142
143			`// xf register`
144			`always @(negedge rstn or posedge clk)`
145			`if(~rstn)`
146			`r_xf <= #1 64'h0 ;`
147			`else`
148			`r_xf <= #1 w_xf_mux ;`
149
150			`// o_text_out`
151			`assign o_text_out = r_xf;`
152
153			`endmodule`
154
155

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[/] [hight/] [trunk/] [rtl/] [CRYPTO_PATH.v] - Blame information for rev 2