aneels3 / aes-128

Single pipeline AES 128 bit encryption using S-box as Look up table.

Hi there 👋

I'm Anil Sharma, a Verification Engineer from India. Graduated from NIT SIKKIM, former Hardware Intern @IIT Bombay

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aes-128's Issues

Internal Round

Use only one register for the internal round. The modules inside the generate block need not be replicate itself, use of these modules once, the input and output for every round should be a feedback register and perform the round operation using different approaches if possible.

enhancement needs to be done in AES_Encryption.v module.

generate
   for(i=1;i<=9;i=i+1) begin: test
 	if(i<9)
	begin
		Key k_i (.rc(i),.k_in(key_out[i-1]),.k_out(key_out[i]));
		MUX2_1 MUX_i (.A2(round_out[i-1]),.S(1'b1),.B(mux_out1[i]));
		Sub_Bytes sb_i (.A(mux_out1[i]),.B1(sb[i]));
		DFF_128 dff_i (.clk(clk),.D(sb[i]),.Q(df1[i]));
		Shift_Rows sr_i (.clk(clk),.b_in(df1[i]),.b_out(sr[i]));
		Mix_Column mc_i (.clk(clk),.c_in1(sr[i]),.c_out(mc[i]));
		mux mux_i (.a1(sr[i]),.a2(mc[i]),.s(1'b1),.b(mc_sr[i]));
		Sub_Key sk_i (.key_in(key_out[i]),.mc_sr_out(mc_sr[i]),.data_out(round_out1[i]));
		Round_reg r_i(.clk(clk),.r_in(round_out1[i]),.r_out(round_out[i]));
	end
	else
	begin
		Key k_f (.rc(i),.k_in(key_out[i-1]),.k_out(key_out[i]));
		MUX2_1 MUX_f (.A2(round_out[i-1]),.S(1'b1),.B(mux_out1[i]));
		Sub_Bytes sb_f (.A(mux_out1[i]),.B1(sb[i]));
		DFF_128 dff_f (.clk(clk),.D(sb[i]),.Q(df1[i]));
		Shift_Rows sr_f (.clk(clk),.b_in(df1[i]),.b_out(sr[i]));
		mux mux_f (.a1(sr[i]),.s(1'b0),.b(mc_sr[i]));
		Sub_Key sk_f (.key_in(key_out[i]),.mc_sr_out(mc_sr[i]),.data_out(round_out1[i]));
		Round_reg r_f (.clk(clk),.r_in(round_out1[i]),.r_out(cipher_out));
	end
end
endgenerate