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[/] [csa/] [trunk/] [rtl/] [group_decrypt.v] - Diff between revs 42 and 43
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| Rev 42 |
Rev 43 |
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Line 10... |
, input [ 8*8-1:0] ck
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, input [ 8*8-1:0] ck
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, input [56*8-1:0] kk
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, input [56*8-1:0] kk
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, input [ 8*8-1:0] group
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, input [ 8*8-1:0] group
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, input [ 4-1:0] bytes
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, input [ 4-1:0] bytes
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, output reg valid
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, output valid
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, output reg [ 8*8-1:0] ogroup
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, output [ 8*8-1:0] ogroup
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, output reg [ 4-1:0] obytes
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, output [ 4-1:0] obytes
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);
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);
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reg init_d;
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reg init_d;
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wire [8*8-1:0] sc_cb;
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wire [8*8-1:0] stream;
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reg [8*8-1:0] stream_d;
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wire [8*8-1:0] ib;
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wire [8*8-1:0] ib;
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reg [8*8-1:0] sc_cb_d;
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reg [8*8-1:0] bco_d;
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reg [8*8-1:0] bco_d;
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wire [8*8-1:0] bco;
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wire [8*8-1:0] bco;
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reg en_d;
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always @(posedge clk)
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always @(posedge clk)
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begin
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begin
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en_d<=en;
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init_d<=init;
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if(en)
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if(en)
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begin
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begin
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sc_cb_d<=sc_cb;
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stream_d<=stream;
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bco_d<=bco;
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end
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end
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if(en_d)
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bco_d<=bco;
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end
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end
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assign ib=(init_d)?group:group^stream;
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stream_cypher stream_cypher(
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stream_cypher stream_cypher(
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.clk (clk)
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.clk (clk)
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, .rst (rst)
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, .rst (rst)
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, .en (en)
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, .en (en)
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, .init (init)
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, .init (init)
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, .ck (ck)
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, .ck (ck)
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, .sb (group)
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, .sb (group)
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, .cb (sc_cb)
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, .cb (stream)
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);
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);
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assign ib=init?sc_cb_d:group^sc_cb;
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block_decypher block_decypher(
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block_decypher block_decypher(
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.kk (kk)
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.kk (kk)
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, .ib (ib)
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, .ib (ib)
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, .bd (bco)
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, .bd (bco)
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);
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);
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assign ogroup=group^bco_d^stream;
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assign valid=en_d & ~init_d;
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assign obytes=4'h8;
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endmodule
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endmodule
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No newline at end of file
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No newline at end of file
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