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tt_um_AES.tlv
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\m5_TLV_version 1d: tl-x.org
\m5
// Copyright: Apache 2.0: https://github.com/bogibso15/efabless-tt06-verilog-template/blob/main/LICENSE
use(m5-1.0)
//================================
// Logic created by Lee Stockwell, Bo Gibson, and Brent Hall in the course "ChipCraft: The Art of Chip Design (Crane, IN)".
// VIZ code by Steve Hoover.
// Copied from https://github.com/bogibso15/efabless-tt06-verilog-template.
//================================
//-------------------------------------------------------
// Build Target Configuration
//
// To build within Makerchip for the FPGA or ASIC:
// o Use first line of file: \m5_TLV_version 1d --inlineGen --noDirectiveComments --noline --clkAlways --bestsv --debugSigsYosys: tl-x.org
// o set(MAKERCHIP, 0) // (below)
// o For ASIC, set my_design (below) to match the configuration of your repositoy:
// - tt_um_fpga_hdl_demo for tt_fpga_hdl_demo repo
// - tt_um_example for tt06_verilog_template repo
// o var(target, FPGA) // or ASIC (below)
set(MAKERCHIP, 1) /// 1 for simulating in Makerchip.
var(my_design, tt_um_template) /// The name of your top-level TT module, to match your info.yml.
var(target, FPGA) /// FPGA or ASIC
//-------------------------------------------------------
var(debounce_inputs, 1) /// 1: Provide synchronization and debouncing on all input signals.
/// 0: Don't provide synchronization and debouncing.
/// m5_neq(m5_MAKERCHIP, 1): Debounce unless in Makerchip.
// ======================
// Computed From Settings
// ======================
// If debouncing, a user's module is within a wrapper, so it has a different name.
var(user_module_name, m5_if(m5_debounce_inputs, my_design, m5_my_design))
var(debounce_cnt, m5_if_eq(m5_MAKERCHIP, 1, 8'h03, 8'hff))
var(repo_content_url, ['https://raw.githubusercontent.com/stevehoover/efabless-tt-fpga-dl-demo-AES/main'])
\SV
m4_include_lib(https:/['']/raw.githubusercontent.com/efabless/chipcraft---mest-course/main/tlv_lib/calculator_shell_lib.tlv)
// Include Tiny Tapeout Lab.
m4_include_lib(https:/['']/raw.githubusercontent.com/os-fpga/Virtual-FPGA-Lab/62d6e18bc3d0ca8af451ccaff6d63974a69e645b/tlv_lib/tiny_tapeout_lib.tlv)
// Click ▼ on next line to hide VIZ code (in Makerchip).
\TLV aes_viz()
|encrypt
@0
m5_fn(stroke_for_row_val, i, ['stroke: function (row) {return row == 0 ? "red" : row == 1 ? "#2040ff" : row == 2 ? "#00dd00" : "#ff00ff"}(m5_i)'])
m5_fn(stroke_for_row, i, ['m5_stroke_for_row_val(this.getIndex("m5_i"))'])
\viz_js
box: {left: -70, top: 0, width: 960, height: 960, strokeWidth: 0},
init() {
return {
bg: this.newImageFromURL(
"m5_repo_content_url/viz/AES_(Rijndael)_Round_Function.png",
"John Savard - CC0",
{width: 640, height: 960, fill: "#FFF1", strokeWidth: 0,},
{strokeWidth: 0}
),
round: new fabric.Text("Round: -", {left: 320, top: 20, fontFamily: "roboto", fontSize: 35, fill: "white"}),
back_to_top: new fabric.Text("Back to top...", {left: 180, top: 900, fontFamily: "roboto", fontSize: 20, fill: "white"})
}
},
render() {
$round = '$round'
this.getObjects().round.set({text: `Round: ${$round.v}`, fill: $round.isValid() ? "white" : "gray"})
},
where: {left: 0, top: 0, height: 100}
/subbytes
/legend
\viz_js
box: {strokeWidth: 0},
init() {
return {
circle: new fabric.Circle({
fill: "#FFD8D8D0", radius: 40,
strokeWidth: 2, stroke: "gray",
}),
text: new fabric.Text(
"State In\nSbox out",
{originX: "center", originY: "center", textAlign: "center", left: 40, top: 40,
fontFamily: "roboto", fontSize: 14, lineHeight: 1.4})
}
},
render() {
this.getObjects().text.set({
fill: '|encrypt$not_round0'.asBool() ? "black" : "lightgray"
})
return [];
},
where: {left: 30, top: 30}
/xx[*]
\viz_js
box: {strokeWidth: 0},
layout: {left: 43, top: -24},
where: {left: 57, top: 60}
/yy[*]
\viz_js
box: {strokeWidth: 0},
layout: {left: 56, top: 32},
init() {
test = this
let circ = new fabric.Circle({
fill: "#FFD8D8D0", radius: 24,
strokeWidth: 2, m5_stroke_for_row(yy)
})
let text = new fabric.Text("--\n--", {originX: "center", originY: "center", textAlign: "center", left: 25, top: 25, fontFamily: "roboto mono", fontSize: 12.5})
return {circ, text}
},
render() {
this.getObjects().text.set({
text: `${'$word_idx'.asHexStr()}\n${'$sb_out'.asHexStr()}`,
fill: '|encrypt$not_round0'.asBool() ? "black" : "lightgray"
})
return [];
},
/map
\viz_js
box: {strokeWidth: 0},
init() {
this.sbox_cyc = -1 // Indicate that sbox_prop must be updated.
return {
img: this.newImageFromURL(
"m5_repo_content_url/viz/1920px-AES-SubBytes.svg.png",
"Matt Crypto -- CC0",
{left: 0, top: 20, width: 300, height: 162, fill: "#FFF1", strokeWidth: 0,},
{strokeWidth: 0}
),
label1: new fabric.Text("State In\n($word_idx)", {
originX: "center", textAlign: "center", left: 56, top: -17, fill: "white",
fontFamily: "roboto mono", fontSize: 15
}),
label2: new fabric.Text("Sbox Out\n($sb_out)", {
originX: "center", textAlign: "center", left: 244, top: -17, fill: "white",
fontFamily: "roboto mono", fontSize: 15
}),
S: new fabric.Text("Sbox", {
left: 130, top: 107, fill: "white",
fontFamily: "roboto mono", fontSize: 17
}),
legend: new fabric.Text("* Gray squares map RotWord to SubWord\n in key schedule (lower right).", {
left: 143, top: 191, fill: "white",
fontFamily: "roboto mono", fontSize: 1.5
}),
}
},
where: {left: 460, top: 75}
/sbox_x[15:0]
\viz_js
box: {width: 10, height: 160, fill: "white"},
where: {left: 120, top: 130, width: 60, height: 60}
/sbox_y[15:0]
\viz_js
box: {width: 10, height: 10},
layout: "vertical",
render() {
let index = this.getIndex("sbox_y") * 16 + this.getIndex("sbox_x")
let val = '|encrypt$sbox_vec'.asHexStr().substr((255 - index) * 2, 2)
ret = [
new fabric.Text(index.toString(16), {
fontFamily: "roboto mono", fontSize: 3.5,
originX: "center", left: 5, top: 0.5,
}),
new fabric.Text(val.toString(16).padStart(2, "0"), {
fontFamily: "roboto mono", fontSize: 3.5,
originX: "center", left: 5, top: 5
}),
]
// Sbox properties (only once), as sparse array sbox_prop[0..255].
let ctx = this.getScope("map").context
if (this.getScope("map").context.sbox_cyc != this.getCycle()) {
this.getScope("map").context.sbox_cyc = this.getCycle()
ctx.sbox_prop = {}
let rot_word = '|encrypt/keyschedule$rot'+0
for (let y = 0; y < 4; y++) {
let row_prop = {m5_stroke_for_row_val(y)}
for (let x = 0; x < 4; x++) {
let idx = '/subbytes/xx[x]/yy[y]$word_idx'+0
ctx.sbox_prop[idx] = {stroke: row_prop.stroke}
if (x == 2 && y == 2) {
ctx.sbox_prop[idx].rect_fill = "#fdd58a"
}
}
// Also, highlight the mapping of RotWord.
let i = (rot_word >> (y * 8)) & 0xFF;
ctx.sbox_prop[i] = {stroke: row_prop.stroke, rect_fill: "lightgray"}
}
}
// Colored circle for row, yellow box for highlighted cell, and gray box for key mapping.
if (index in ctx.sbox_prop) {
let prop = ctx.sbox_prop[index]
ret.unshift(new fabric.Circle({left: 0, top: 0, radius: 4.5, strokeWidth: 1, stroke: prop.stroke, fill: "transparent"}))
if ("rect_fill" in prop) {
ret.unshift(new fabric.Rect({left: 0, top: 0, width: 9, height: 9, fill: prop.rect_fill, strokeWidth: 1, stroke: "black"}))
}
}
return ret
},
/ax[3:0]
/ay[3:0]
$ANY = /subbytes/xx[#ax]/yy[#ay]$ANY;
\viz_js
box: {strokeWidth: 0},
layout: "vertical",
init() {
let circ = new fabric.Circle({
fill: "#FFD8D8D0", radius: 13,
strokeWidth: 1, m5_stroke_for_row(ay)
})
let text = new fabric.Text(
"--", {originX: "center", originY: "center", textAlign: "center", left: 13, top: 13,
fontFamily: "roboto mono", fontSize: 12.5})
return {circ, text}
},
render() {
this.getObjects().text.set({
text: '$word_idx'.asHexStr(),
fill: '|encrypt$not_round0'.asBool() ? "black" : "lightgray"
})
return [];
},
where: {left: 3, top: 26}
/bx[3:0]
/by[3:0]
$ANY = /subbytes/xx[#bx]/yy[#by]$ANY;
\viz_js
box: {strokeWidth: 0},
layout: "vertical",
init() {
let circ = new fabric.Circle({
fill: "#FFD8D8D0", radius: 13,
strokeWidth: 1, m5_stroke_for_row(by)
})
let text = new fabric.Text("--", {originX: "center", originY: "center", textAlign: "center", left: 13, top: 13, fontFamily: "roboto mono", fontSize: 12.5})
return {circ, text}
},
render() {
this.getObjects().text.set({
text: '$sb_out'.asHexStr(),
fill: '|encrypt$not_round0'.asBool() ? "black" : "lightgray"
})
return [];
},
where: {left: 191, top: 26}
/shift_row
/map
\viz_js
box: {strokeWidth: 0},
init() {
let img = this.newImageFromURL(
"m5_repo_content_url/viz/1920px-AES-ShiftRows.svg.png",
"Matt Crypto -- CC0",
{left: -30, top: 34, width: 331, height: 150, fill: "#FFF1", strokeWidth: 0,},
{strokeWidth: 0}
)
let label1 = new fabric.Text("Sbox Out\n($sb_out)", {originX: "center", textAlign: "center", left: 56, top: -7, fill: "white", fontFamily: "roboto mono", fontSize: 15})
let label2 = new fabric.Text("Shifted\n($ssr_out)", {originX: "center", textAlign: "center", left: 244, top: -7, fill: "white", fontFamily: "roboto mono", fontSize: 15})
return {img, label1, label2}
},
where: {left: 430, top: 255}
/ax[3:0]
/ay[3:0]
$ANY = |encrypt/subbytes/xx[#ax]/yy[#ay]$ANY;
\viz_js
box: {strokeWidth: 0},
layout: "vertical",
init() {
let circ = new fabric.Circle({
fill: "#FFD8D8D0", radius: 13,
strokeWidth: 1, m5_stroke_for_row(ay)
})
let text = new fabric.Text("--", {originX: "center", originY: "center", textAlign: "center", left: 13, top: 13, fontFamily: "roboto mono", fontSize: 12.5})
return {circ, text}
},
render() {
this.getObjects().text.set({
text: '$sb_out'.asHexStr(),
fill: '|encrypt$not_round0'.asBool() ? "black" : "lightgray"
})
return [];
},
where: {left: 3, top: 36}
/bx[3:0]
/by[3:0]
$ssr_out_byte[7:0] = |encrypt/subbytes$ssr_out[((#bx * 4) + #by) * 8 +: 8];
\viz_js
box: {strokeWidth: 0},
layout: "vertical",
init() {
let circ = new fabric.Circle({
fill: "#D8D8FFD0", radius: 13,
strokeWidth: 1, m5_stroke_for_row(by)
})
let text = new fabric.Text("--", {originX: "center", originY: "center", textAlign: "center", left: 13, top: 13, fontFamily: "roboto mono", fontSize: 12.5})
return {circ, text}
},
render() {
this.getObjects().text.set({
text: '$ssr_out_byte'.asHexStr(),
fill: '|encrypt$not_round0'.asBool() ? "black" : "lightgray"
})
return [];
},
where: {left: 191, top: 36}
/mixcolumn
/legend
\viz_js
box: {strokeWidth: 0},
init() {
return {
circle: new fabric.Circle({
fill: "#D8D8FFD0", radius: 40,
strokeWidth: 2, stroke: "gray",
}),
text: new fabric.Text(
"Shifted\nMixed",
{originX: "center", originY: "center", textAlign: "center", left: 40, top: 40,
fontFamily: "roboto", fontSize: 14, lineHeight: 1.4})
}
},
render() {
this.getObjects().text.set({text: '|encrypt$not_round0'.asBool() ? "Shifted\nMixed" : "State In\nMixed",
fill: '|encrypt$do_mixcolumn'.asBool() ? "black" : "lightgray"
})
},
where: {left: 30, top: 400}
/xx[*]
\viz_js
box: {strokeWidth: 0},
layout: {left: 43, top: -24},
where: {left: 57, top: 430}
/yy[*]
// $ss, $cc, $oo
\viz_js
box: {strokeWidth: 0},
layout: {left: 56, top: 32},
init() {
let circ = new fabric.Circle({
fill: "#D8D8FFD0", radius: 24,
strokeWidth: 2, m5_stroke_for_row(yy)
})
let text = new fabric.Text("--\n--\n--", {originX: "center", originY: "center", textAlign: "center", left: 25, top: 25, fontFamily: "roboto mono", fontSize: 12.5})
return {circ, text}
},
render() {
this.getObjects().text.set({
text: `${'$ss'.asHexStr()}\n${'$oo'.asHexStr()}`,
fill: '|encrypt$do_mixcolumn'.asBool() ? "black" : "lightgray"
})
return [];
}
/map
\viz_js
box: {strokeWidth: 0},
init() {
let img = this.newImageFromURL(
"m5_repo_content_url/viz/1920px-AES-MixColumns.svg.png",
"Matt Crypto -- CC0",
{left: 1, top: 16, width: 300, height: 160, fill: "#FFF1", strokeWidth: 0,},
{strokeWidth: 0}
)
let label1 = new fabric.Text("Shifted\n($ssr_out)", {originX: "center", textAlign: "center", left: 104, top: -6, fill: "white", fontFamily: "roboto mono", fontSize: 15})
let label2 = new fabric.Text("Mixed\n($oo)", {originX: "center", textAlign: "center", left: 274, top: -6, fill: "white", fontFamily: "roboto mono", fontSize: 15})
return {img, label1, label2}
},
render() {
this.getObjects().label1.set({text: '|encrypt$not_round0'.asBool() ? "Shifted\n($ssr_out)" : "State In\n($state_i)"})
},
where: {left: 460, top: 425}
/ax[3:0]
/ay[3:0]
$ANY = /mixcolumn/xx[#ax]/yy[#ay]$ANY;
\viz_js
box: {strokeWidth: 0},
layout: "vertical",
init() {
let circ = new fabric.Circle({
fill: "#D8D8FFD0", radius: 13,
strokeWidth: 1, m5_stroke_for_row(ay)
})
let text = new fabric.Text("--", {originX: "center", originY: "center", textAlign: "center", left: 13, top: 13, fontFamily: "roboto mono", fontSize: 12.5})
return {circ, text}
},
render() {
this.getObjects().text.set({
text: '$ss'.asHexStr(),
fill: '|encrypt$do_mixcolumn'.asBool() ? "black" : "lightgray"
})
return [];
},
where: {left: 3, top: 36}
/bx[3:0]
/by[3:0]
$ANY = /mixcolumn/xx[#bx]/yy[#by]$ANY;
\viz_js
box: {strokeWidth: 0},
layout: "vertical",
init() {
let color = {m5_stroke_for_row(by)}
let circ = new fabric.Circle({
fill: "#D8D8FFD0", radius: 13,
strokeWidth: 1, stroke: color.stroke
})
let text = new fabric.Text("--", {
originX: "center", originY: "center", textAlign: "center", left: 13, top: 13,
fill: color.stroke, fontFamily: "roboto mono", fontSize: 12.5
})
return {circ, text}
},
render() {
this.getObjects().text.set({
text: '$oo'.asHexStr(),
fill: '|encrypt$do_mixcolumn'.asBool() ? "black" : "lightgray"
})
return [];
},
where: {left: 191, top: 36}
/matmul
\viz_js
box: {width: 80, height: 80, fill: "#fdd58a", stroke: "black"},
init() {
return {
x: new fabric.Text("x", {
originX: "center", originY: "center", left: 50, top: 25,
fontFamily: "roboto mono", fontSize: 7
}),
sum: new fabric.Text("=Σ", {
originX: "center", originY: "center", left: 25, top: 50,
fontFamily: "roboto mono", fontSize: 7
}),
a: new fabric.Text("a", {
left: 22, top: 10, fontFamily: "roboto mono", fontSize: 7
}),
b: new fabric.Text("b", {
left: 12, top: 20, fontFamily: "roboto mono", fontSize: 7
})
}
},
where: {left: 110, top: 146, width: 80, height: 80}
/bb[3:0]
$ANY = /mixcolumn/xx[1]/yy[#bb]$ANY;
\viz_js
box: {width: 10, height: 10, fill: "#fdd58a", stroke: "black", strokeWidth: 0.5},
layout: "vertical",
init() {
let color = {m5_stroke_for_row(bb)}
return {
circ: new fabric.Circle({
fill: "#D8D8FFD0", radius: 4.75,
strokeWidth: 1, stroke: color.stroke, strokeWidth: 0.5,
}),
text: new fabric.Text("--", {
originX: "center", originY: "center", textAlign: "center", left: 5, top: 5,
fill: color.stroke, fontFamily: "roboto mono", fontSize: 7
})
}
},
render() {
this.getObjects().text.set({text: '$oo'.asHexStr(), fill: '|encrypt$do_mixcolumn'.asBool() ? "black" : "lightgray"})
},
where: {left: 10, top: 30, width: 10}
/aa[3:0]
$ANY = /mixcolumn/xx[1]/yy[#aa]$ANY;
\viz_js
box: {width: 10, height: 10, fill: "#fdd58a", stroke: "black", strokeWidth: 0.5},
layout: "vertical",
init() {
return {
circ: new fabric.Circle({
fill: "#D8D8FFD0", radius: 4.75,
strokeWidth: 1, m5_stroke_for_row(aa), strokeWidth: 0.5
}),
text: new fabric.Text("--", {
originX: "center", originY: "center", textAlign: "center", left: 5, top: 5,
fontFamily: "roboto mono", fontSize: 7
})
}
},
render() {
this.getObjects().text.set({text: '$ss'.asHexStr(), fill: '|encrypt$do_mixcolumn'.asBool() ? "black" : "lightgray"})
},
where: {left: 30, top: 20, width: 10, angle: -90}
/cx[3:0]
/cy[3:0]
$ANY = /mixcolumn/xx[#cx]/yy[#cy]$ANY;
\viz_js
box: {width: 10, height: 10, strokeWidth: 0, fill: "white", stroke: "black", strokeWidth: 0.5},
layout: "vertical",
init() {
let color = {m5_stroke_for_row(cy)}
let circ = new fabric.Circle({
fill: "#D8D8FFD0", radius: 4.75,
strokeWidth: 1, m5_stroke_for_row(cx), strokeWidth: 0.5
})
let text = new fabric.Text("-", {
originX: "center", originY: "center", textAlign: "center", left: 5, top: 5,
fill: color.stroke, fontFamily: "roboto mono", fontSize: 3.4, lineHeight: 0.9,
})
return {circ, text}
},
render() {
let color = {m5_stroke_for_row(cy)}
this.getObjects().text.set({
text: '/mixcolumn/xx[1]/yy[this.getIndex("cx")]$ss'.asHexStr() + "×" + '$cc'.v.toString(16) + "\n=" + '/mixcolumn/xx[1]/yy[this.getIndex("cy")]/exp[this.getIndex("cx")]$op'.asHexStr(),
fill: '|encrypt$do_mixcolumn'.asBool() ? color.stroke : "lightgray"
})
return [];
},
where: {left: 30, top: 30, width: 10}
/keyschedule
/legend
\viz_js
box: {strokeWidth: 0},
init() {
return {
circle: new fabric.Circle({
fill: "#D8FFD8D0", radius: 40,
strokeWidth: 2, stroke: "gray",
}),
text: new fabric.Text(
"Mixed\nKey\nState Out",
{originX: "center", originY: "center", textAlign: "center", left: 40, top: 40,
fontFamily: "roboto", fontSize: 14
}),
}
},
render() {
this.getObjects().text.set({text: `${('|encrypt$not_round0'.asBool() ? ('|encrypt$do_mixcolumn'.asBool() ? "Mixed" : "Shifted") : "State In") + "\nKey\nState Out"}`})
},
where: {left: 30, top: 625}
/sbox_k[*]
\viz_js
box: {strokeWidth: 0},
layout: {left: 43, top: -24},
where: {left: 57, top: 655}
/yy[3:0]
$oo[7:0] = |encrypt/mixcolumn/xx[#sbox_k]/yy[#yy]$oo;
$key_byte[7:0] = |encrypt/keyschedule$key[((#sbox_k * 4) + #yy) * 8 +: 8];
$state_ark_byte[7:0] = |encrypt$state_ark[((#sbox_k * 4) + #yy) * 8 +: 8];
\viz_js
box: {strokeWidth: 0},
layout: {left: 56, top: 32},
init() {
let circ = new fabric.Circle({
fill: "#D8FFD8D0", radius: 24,
strokeWidth: 2, m5_stroke_for_row(yy)
})
let text = new fabric.Text("--\n--\n--", {originX: "center", originY: "center", textAlign: "center", left: 25, top: 25, fontFamily: "roboto mono", fontSize: 12.5})
return {circ, text}
},
render() {
this.getObjects().text.set({
text: `${'|encrypt$state_mc'.asHexStr().substr((15 - (this.getIndex("sbox_k") * 4 + this.getIndex("yy"))) * 2, 2)}\n${'$key_byte'.asHexStr()}\n${'$state_ark_byte'.asHexStr()}`,
fill: '|encrypt$valid_blk'.asBool() ? "black" : "lightgray"
})
return [];
}
/key
\viz_js
box: {width: 100, height: 100, strokeWidth: 0},
init() {
return {
img: this.newImageFromURL(
"m5_repo_content_url/viz/AES-Key_Schedule_128-bit_key.png",
"\"AES key schedule for a 128-bit key\", by Sissssou, CC BY-SA 4.0, https://en.wikipedia.org/wiki/AES_key_schedule",
{left: 0, top: 0, width: 100, height: 100, fill: "#FFF1", strokeWidth: 0,},
{strokeWidth: 0}
),
key: new fabric.Text("Key\n($key)", {
left: 19.5, top: 12.5, angle: -90, fill: "white", textAlign: "center", originX: "center",
fontFamily: "roboto mono", fontSize: 3
}),
next_key: new fabric.Text("Next Key\n($next_key)", {
left: 19.5, top: 56.4, angle: -90, fill: "white", textAlign: "center", originX: "center",
fontFamily: "roboto mono", fontSize: 3
}),
sbox: new fabric.Text("Sbox", {
left: 3.28, top: 31.68, fill: "black",
fontFamily: "roboto mono", fontSize: 2.7
}),
rot: new fabric.Text("--------", {
left: 1, top: 23, fill: "white",
fontFamily: "roboto mono", fontSize: 3.5
}),
sb_out_word: new fabric.Text("--------", {
left: 1, top: 33.7, fill: "white",
fontFamily: "roboto mono", fontSize: 3.5
}),
rcon: new fabric.Text("--------", {
left: 1, top: 44.4, fill: "white",
fontFamily: "roboto mono", fontSize: 3.5
}),
xor_con: new fabric.Text("--------",
{left: 1, top: 53.4, fill: "white",
fontFamily: "roboto mono", fontSize: 3.5
}),
}
},
render() {
let duration = (this.steppedBy() == 1) ? 500 : 1
let format_key = function (sig) {
let hex = sig.asHexStr()
let ret = hex.substr(0, 8)
for (let i = 1; i < 4; i++) {
ret = hex.substr(8 * i, 8) + "_" + ret
}
return ret
}
let obj = this.getObjects()
let computed = '/keyschedule>>1$compute_next_key'.asBool()
obj.key.set({text: computed ? "Key\n($key)" : "Start Key\n($key)"})
obj.img. set({top: 0}) // Reset animation in case we're mid-animation.
obj.rot. set({visible: false, text: '/keyschedule$rot'. asHexStr()})
obj.sb_out_word.set({visible: false, text: '/keyschedule$sb_out_word'.asHexStr()})
obj.rcon. set({visible: false, text: "000000" +
'/keyschedule$rcon'. asHexStr()})
obj.xor_con. set({visible: false, text: '/keyschedule$xor_con'. asHexStr()})
// Animate. Some elements are not visible, animate others upward. Then unhide all.
obj.img.animate({top: -43.5}, {
duration
}).then( () => {
obj.img.set({top: 0})
obj.rot. set({visible: true})
obj.sb_out_word.set({visible: true})
obj.rcon. set({visible: true})
obj.xor_con. set({visible: true})
})
},
where: {left: 630, top: 800, width: 160, height: 160}
/row[1:0]
\viz_js
box: {strokeWidth: 0},
layout: {left: 0, top: 63.5},
where: {left: 29.4, top: 0, height: 70.4}
/word[3:0]
$ANY = /keyschedule/word$ANY;
\viz_js
box: {strokeWidth: 0},
layout: {left: 27.5, top: 0}
/kbyte[3:0]
\viz_js
box: {width: 10, height: 10, strokeWidth: 0},
layout: "vertical",
init() {
return {
circ: new fabric.Circle({
left: 0, top: 0, fill: this.getIndex("row") == 0 ? "#D8FFD8D0" : "#D8D8D8D0", radius: 4.5,
strokeWidth: 1, m5_stroke_for_row(kbyte)
}),
text: new fabric.Text("--", {
originX: "center", originY: "center", textAlign: "center",
left: 5, top: 5,
fontFamily: "roboto", fontSize: 6
}),
}
},
render() {
let word = (this.getIndex("row") ? '/word[this.getIndex("word")]$next_word' : '/word[this.getIndex("word")]$term2').v
let obj = this.getObjects()
obj.text.set({top: 5, text: ((word >> (this.getIndex() * 8)) & 0xFF).toString(16).padStart(2, "0")})
obj.circ.set({top: 0})
// Animate the next key becoming the key, only when stepping forward.
let duration = (this.steppedBy() == 1) ? 500 : 1
if (this.getIndex("row") == 0) {
let visible = '/keyschedule>>1$compute_next_key'.asBool()
obj.text.set({top: 68.5, visible})
.animate({top: 5}, {duration})
.thenSet({visible: true})
obj.circ.set({top: 63.5, visible})
.animate({top: 0}, {duration})
.thenSet({visible: true})
} else {
let compute = '/keyschedule$compute_next_key'.asBool()
obj.text.set({visible: false})
.wait(duration)
.thenSet({visible: true, fill: compute ? "black" : "lightgray"})
obj.circ.set({visible: false})
.wait(duration)
.thenSet({visible: true})
}
},
/map
\viz_js
box: {strokeWidth: 0},
init() {
let img = this.newImageFromURL(
"m5_repo_content_url/viz/1024px-AES-AddRoundKey.svg.png",
"Matt Crypto -- CC0",
{left: 0, top: 30, width: 300, height: 300, fill: "#FFF1", strokeWidth: 0,},
{strokeWidth: 0}
)
let label1 = new fabric.Text("Mixed\n($oo)", {textAlign: "center", originX: "center", left: 56, top: -9, fill: "white", fontFamily: "roboto mono", fontSize: 15})
let label2 = new fabric.Text("State Out\n($state_ark)", {textAlign: "center", originX: "center", left: 244, top: -9, fill: "white", fontFamily: "roboto mono", fontSize: 15})
let label3 = new fabric.Text("Key ($key)", {originX: "center", left: 56, top: 139, fill: "white", fontFamily: "roboto mono", fontSize: 15})
return {img, label1, label2, label3}
},
render() {
this.getObjects().label1.set({text: '|encrypt$not_round0'.asBool() ? ('|encrypt$do_mixcolumn'.asBool() ? "Mixed\n($oo)" : "Shifted\n($ssr_out)") : "State In\n($state_i)"})
},
where: {left: 460, top: 630}
/ax[3:0]
/ay[3:0]
\viz_js
box: {strokeWidth: 0},
layout: "vertical",
init() {
let circ = new fabric.Circle({
fill: "#D8FFD8D0", radius: 13,
strokeWidth: 1, m5_stroke_for_row(ay)
})
let text = new fabric.Text("--", {originX: "center", originY: "center", textAlign: "center", left: 13, top: 13, fontFamily: "roboto mono", fontSize: 12.5})
return {circ, text}
},
render() {
this.getObjects().text.set({
text: '|encrypt$state_mc'.asHexStr().substr((15 - (this.getIndex("ax") * 4 + this.getIndex("ay"))) * 2, 2),
fill: '|encrypt$valid_blk'.asBool() ? "black" : "lightgray"
})
return [];
},
where: {left: 2, top: 31}
/bx[3:0]
/by[3:0]
$ANY = /keyschedule/sbox_k[#bx]/yy[#by]$ANY;
\viz_js
box: {strokeWidth: 0},
layout: "vertical",
init() {
let circ = new fabric.Circle({
fill: "#D8FFD8D0", radius: 13,
strokeWidth: 1, m5_stroke_for_row(by)
})
let text = new fabric.Text("--", {originX: "center", originY: "center", textAlign: "center", left: 13, top: 13, fontFamily: "roboto mono", fontSize: 12.5})
return {circ, text}
},
render() {
this.getObjects().text.set({
text: '$state_ark_byte'.asHexStr(),
fill: '|encrypt$valid_blk'.asBool() ? "black" : "lightgray"
})
return [];
},
where: {left: 190, top: 31}
/kx[3:0]
/ky[3:0]
$ANY = /keyschedule/sbox_k[#kx]/yy[#ky]$ANY;
\viz_js
box: {strokeWidth: 0},
layout: "vertical",
init() {
let circ = new fabric.Circle({
fill: "#D8FFD8D0", radius: 13,
strokeWidth: 1, m5_stroke_for_row(ky)
})
let text = new fabric.Text("--", {originX: "center", originY: "center", textAlign: "center", left: 13, top: 13, fontFamily: "roboto mono", fontSize: 12.5})
return {circ, text}
},
render() {
this.getObjects().text.set({
text: '$key_byte'.asHexStr(),
fill: '|encrypt$valid_blk'.asBool() ? "black" : "lightgray"
})
return [];
},
where: {left: 2, top: 155}
//Macro to perform the Subbytes AND Shift Rows subroutines.
//It is trivial to combine these subroutines, and so we combine
//them into one macro.
//See Sections 5.1.1 and 5.1.2 (pages 15-17) of the NIST AES Specification for more details.
//https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.197.pdf
\TLV subbytes(/_top, /_name, $_state_in)
/_name
/xx[3:0]
$word[31:0] = /_top$_state_in[32 * #xx +: 32];
m5+sbox(/xx, /yy, $word)
// Shift rows
$ssr_out[127:0] = {/xx[2]/yy[3]$sb_out, /xx[1]/yy[2]$sb_out, /xx[0]/yy[1]$sb_out, /xx[3]/yy[0]$sb_out,
/xx[1]/yy[3]$sb_out, /xx[0]/yy[2]$sb_out, /xx[3]/yy[1]$sb_out, /xx[2]/yy[0]$sb_out,
/xx[0]/yy[3]$sb_out, /xx[3]/yy[2]$sb_out, /xx[2]/yy[1]$sb_out, /xx[1]/yy[0]$sb_out,
/xx[3]/yy[3]$sb_out, /xx[2]/yy[2]$sb_out, /xx[1]/yy[1]$sb_out, /xx[0]/yy[0]$sb_out};
\TLV sbox(/_top, /_name, $_word)
/_name[3:0]
$word_idx[7:0] = /_top$_word[8 * #m5_strip_prefix(/_name) +: 8];
$sb_out[7:0] = |encrypt$sbox_vec[ {$word_idx, 3'b0} +: 8];
//Module to verify that the AES encryption has been performed successfully
//The check module can only be run if in ECB
\TLV check(/_top, /_name, $_state_f, $_ui_in)
/_name
// Constant values we have are in reverse order.
// (Can't clean this up because of a Yosys limitation.)
$reversed_state_f[127:0] =
{/_top$_state_f[7:0], /_top$_state_f[15:8], /_top$_state_f[23:16], /_top$_state_f[31:24],
/_top$_state_f[39:32], /_top$_state_f[47:40], /_top$_state_f[55:48], /_top$_state_f[63:56],
/_top$_state_f[71:64], /_top$_state_f[79:72], /_top$_state_f[87:80], /_top$_state_f[95:88],
/_top$_state_f[103:96], /_top$_state_f[111:104], /_top$_state_f[119:112], /_top$_state_f[127:120]
};
$pass[0:0] = /_top$_ui_in == 1 ? ($reversed_state_f == 128'hb6768473ce9843ea66a81405dd50b345) :
/_top$_ui_in == 2 ? ($reversed_state_f == 128'hcb2f430383f9084e03a653571e065de6) :
/_top$_ui_in == 4 ? ($reversed_state_f == 128'hff4e66c07bae3e79fb7d210847a3b0ba) :
/_top$_ui_in == 8 ? ($reversed_state_f == 128'h7b90785125505fad59b13c186dd66ce3) :
($reversed_state_f == 128'h8b527a6aebdaec9eaef8eda2cb7783e5);
//Module to perform the mix columns subroutine. See Section
//5.1.3 (page 17) of the NIST AES Specification for more details.
//https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.197.pdf
\TLV mixcolumn(/_top, /_name, $_block_in)
/_name
$const_matrix[127:0] = 128'h02030101_01020301_01010203_03010102; //constant matrix for column multiplicaiton in the form of a vector
/xx[3:0]
/yy[3:0]
$ss[7:0] = /_top$_block_in[(#yy * 8 + #xx * 32) + 7 : (#yy * 8 + #xx * 32)]; //breaks the input vector and
$cc[7:0] = /_name$const_matrix[(#yy * 8 + #xx * 32) + 7 : (#yy * 8 + #xx * 32)]; //constant matrix into matrices
/exp[3:0]
///xx[#xx]/yy[#exp]$ss * /xx[#exp]/yy[#yy]$cc
$reduce_check[7:0] = (/xx[#xx]/yy[#exp]$ss[7] == 1) && (/xx[#exp]/yy[#yy]$cc != 8'h01) ? 8'h1b : 8'h00; //check if a reduction by the irreducibly polynomial is necessary
$three_check[7:0] = /xx[#exp]/yy[#yy]$cc == 8'h03 ? /xx[#xx]/yy[#exp]$ss : 8'h00; //check if a multiplication by 3 is being done
$op[7:0] = /xx[#exp]/yy[#yy]$cc == 8'h01 ? /xx[#xx]/yy[#exp]$ss : ((/xx[#xx]/yy[#exp]$ss << 1) ^ $three_check ^ $reduce_check); //if 1, identity. otherwise, bitshift & other operations.
$oo[7:0] = /exp[0]$op ^ /exp[1]$op ^ /exp[2]$op ^ /exp[3]$op; //xor the bytes together
$out_matrix[31:0] = {/yy[3]$oo, /yy[2]$oo, /yy[1]$oo, /yy[0]$oo} ; //concat matrix rows
$block_out[127:0] = {/xx[3]$out_matrix, /xx[2]$out_matrix, /xx[1]$out_matrix, /xx[0]$out_matrix}; //concat matrix columns
//Module to perform the key schedule, or key expansion, subroutine.
//See Section 5.2(page 19) of the NIST AES Specification for more details.
//https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.197.pdf
\TLV keyschedule(/_top, /_name, $_start_key, $_finished, $_reset, $_round, $_ld_key)
/_name
//KEY is the exposed output to main. The current key to use will be displayed.
//After ARK is done on main, it should pulse the keyschedule which will cause
//it to calculate the next key and have it ready for use.
$key[127:0] = /_top$_reset ? '0 : //resets key (loads dummy for testing)
/_top$_ld_key ? /_top$_start_key : //pulls in initial key
>>1$next_key; //loads next key
$compute_next_key = ! /_top$_finished && (/_top$_round < 10);
?$compute_next_key
$rot[31:0] = {$key[103:96], $key[127:104]}; // rotate word
m5+sbox(/_name, /sbox_k, $rot)
$sb_out_word[31:0] = {/sbox_k[3]$sb_out, /sbox_k[2]$sb_out, /sbox_k[1]$sb_out, /sbox_k[0]$sb_out};
$rcon[7:0] = /_top$_round == 0 ? 8'h01 : //round constant
>>1$rcon < 8'h80 ? (2 * >>1$rcon) :
((2 * >>1$rcon) ^ 8'h1B);
$xor_con[31:0] = $sb_out_word[31:0] ^ {24'b0, $rcon}; // xor with the round constant
/word[3:0]
// ripple solve for next words
$term1[31:0] = ((#word == 0) ? /_name$xor_con : /word[(#word - 1) % 4]$next_word);
$term2[31:0] = /_name$key[#word * 32 + 31 : #word * 32];
$next_word[31:0] = $term1 ^
$term2;
$next_key[127:0] = {/word[3]$next_word, /word[2]$next_word, /word[1]$next_word, /word[0]$next_word};
\TLV calc()
|encrypt
@0
$sbox_vec[2047:0] = {
128'h16bb54b00f2d99416842e6bf0d89a18c,
128'hdf2855cee9871e9b948ed9691198f8e1,
128'h9e1dc186b95735610ef6034866b53e70,
128'h8a8bbd4b1f74dde8c6b4a61c2e2578ba,
128'h08ae7a65eaf4566ca94ed58d6d37c8e7,
128'h79e4959162acd3c25c2406490a3a32e0,
128'hdb0b5ede14b8ee4688902a22dc4f8160,
128'h73195d643d7ea7c41744975fec130ccd,
128'hd2f3ff1021dab6bcf5389d928f40a351,
128'ha89f3c507f02f94585334d43fbaaefd0,
128'hcf584c4a39becb6a5bb1fc20ed00d153,
128'h842fe329b3d63b52a05a6e1b1a2c8309,
128'h75b227ebe28012079a059618c323c704,
128'h1531d871f1e5a534ccf73f362693fdb7,
128'hc072a49cafa2d4adf04759fa7dc982ca,
128'h76abd7fe2b670130c56f6bf27b777c63
};
$ui_in[7:0] = *ui_in; //Input to determine mode/keys
$ofb = $ui_in[7]; //Switch to determine mode
$blocks_to_run[22:0] = 2000000; //Blocks of AES to run if in OFB
//Initial State or IV
$test_state[127:0] = 128'h00000000000000000000000000000000;
// 128'hffeeddccbbaa99887766554433221100;
//Initial Key
$start_key[127:0] = $ui_in[0] ? 128'h00000000_00000000_0080ffff_ffffffff :
$ui_in[1] ? 128'h00000000_00000000_00c0ffff_ffffffff :
$ui_in[2] ? 128'h00000000_00000000_00e0ffff_ffffffff :
$ui_in[3] ? 128'h00000000_00000000_00f0ffff_ffffffff :
128'h00000000_00000000_00f8ffff_ffffffff;
// 128'h0f0e0d0c_0b0a0908_07060504_03020100;
$valid_blk = ($ofb && ($blk_counter <= $blocks_to_run)) || !$ofb;
//Counter to count the number of AES blocks performed
$blk_counter[22:0] = !$reset && >>1$reset ? 0 :
!$ld_key && >>1$ld_key && $valid_blk ? >>1$blk_counter + 1 :
>>1$blk_counter;
//Reset if *reset or if the ofb_count reaches 12 when in OFB
$reset = *reset;
$valid_check = $valid && !$ofb;
$valid = >>1$round == 10;
$not_round0 = $valid_blk && $round != 0;
$do_mixcolumn = $valid_blk && $round != 0 && $round < 10;
?$valid_blk
//If in ECB, this checks to see if the AES block if completed
$ld_key = ((!$reset && >>1$reset) || >>1$last_round) ? 1 : 0;
$ld_init = !$reset && >>1$reset ? 1 : 0;
//round counter
$round[4:0] = >>1$reset ? 0 :
>>1$round >= 10 ? 0 :
>>1$valid_blk ? >>1$round + 1 :
0;
$last_round = $round == 10;
$finishing = $ofb && $last_round && $blk_counter >= $blocks_to_run;
$finished = $reset ? 0 :
>>1$finishing ? 1 :
>>1$finished;
//Perform the key schedule subroutine
m5+keyschedule(|encrypt, /keyschedule, $start_key, $finished, $reset, $round, $ld_key)
//set the initial state
$state_i[127:0] = $reset ? '0:
$ld_init ? $test_state :
>>1$valid_blk ? >>1$state_ark :
>>1$state_i;
//Perform the subbytes and shift row subroutines
?$not_round0
m5+subbytes(|encrypt, /subbytes, $state_i)
$state_ssr[127:0] = $round == 0 ? $state_i : /subbytes$ssr_out;
//Perform the mixcolumn subroutine
?$do_mixcolumn
m5+mixcolumn(|encrypt, /mixcolumn, $state_ssr)
$state_mc[127:0] = $do_mixcolumn ? /mixcolumn$block_out : $state_ssr;
//Perform the add round key subroutine
$state_ark[127:0] = $state_mc ^ /keyschedule$key;
//If in ECB, check for a correct encryption
?$valid_check
m5+check(|encrypt, /check, $state_i, $ui_in)
// Capture and drive pass/fail on 7-seg.
$passed = $reset ? 1'b0 :
$valid_check ? /check$pass :
$RETAIN;
*uo_out = $passed ? 8'b00111111 :
8'b01110110;
m5_if(m5_MAKERCHIP, ['m5+aes_viz()'])
// Connect Tiny Tapeout outputs. Note that uio_ outputs are not available in the Tiny-Tapeout-3-based FPGA boards.
//*uo_out = 8'b0;
m5_if_neq(m5_target, FPGA, ['*uio_out = 8'b0;'])
m5_if_neq(m5_target, FPGA, ['*uio_oe = 8'b0;'])
\SV
// ================================================
// A simple Makerchip Verilog test bench driving random stimulus.
// Modify the module contents to your needs.
// ================================================
module top(input logic clk, input logic reset, input logic [31:0] cyc_cnt, output logic passed, output logic failed);
/* verilator lint_off UNOPTFLAT */
// Tiny tapeout I/O signals.
logic [7:0] ui_in, uo_out;
m5_if_neq(m5_target, FPGA, ['logic [7:0]uio_in, uio_out, uio_oe;'])
logic [31:0] r;
always @(posedge clk) r <= m5_if(m5_MAKERCHIP, ['$urandom()'], ['0']);
assign ui_in = 8'b00000001;
m5_if_neq(m5_target, FPGA, ['assign uio_in = 8'b0;'])
logic ena = 1'b0;
logic rst_n = ! reset;
// Instantiate the Tiny Tapeout module.
m5_user_module_name tt(.*);
assign passed = top.cyc_cnt > 60;
assign failed = 1'b0;
endmodule