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[/] [gost28147-89/] [trunk/] [rtl/] [gost89_round.v] - Blame information for rev 5

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1 5 fanatid 
module gost89_round(
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  input          clk,
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  input  [511:0] sbox,
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  input  [31:0]  key,
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  input  [31:0]  n1,
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  input  [31:0]  n2,
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  output [31:0]  out1,
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  output [31:0]  out2
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);
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  wire [31:0] tmp1, tmp2;
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  assign tmp1 = n1 + key;
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  gost89_sbox
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    sbox1(sbox[511:448], tmp1[3:0],   tmp2[3:0]),
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    sbox2(sbox[447:384], tmp1[7:4],   tmp2[7:4]),
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    sbox3(sbox[383:320], tmp1[11:8],  tmp2[11:8]),
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    sbox4(sbox[319:256], tmp1[15:12], tmp2[15:12]),
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    sbox5(sbox[255:192], tmp1[19:16], tmp2[19:16]),
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    sbox6(sbox[191:128], tmp1[23:20], tmp2[23:20]),
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    sbox7(sbox[127:64],  tmp1[27:24], tmp2[27:24]),
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    sbox8(sbox[63 :0],   tmp1[31:28], tmp2[31:28]);
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  assign out1[10:0]  = tmp2[31:21] ^ n2[10:0];
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  assign out1[31:11] = tmp2[20:0]  ^ n2[31:11];
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  assign out2 = n1;
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endmodule

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