diff options
| -rw-r--r-- | src/rtl/sha256.v | 198 | ||||
| -rw-r--r-- | src/rtl/sha256_core.v | 33 |
2 files changed, 190 insertions, 41 deletions
diff --git a/src/rtl/sha256.v b/src/rtl/sha256.v index a7d3518..551e3b9 100644 --- a/src/rtl/sha256.v +++ b/src/rtl/sha256.v @@ -56,47 +56,56 @@ module sha256( //---------------------------------------------------------------- // Internal constant and parameter definitions. //---------------------------------------------------------------- - parameter ADDR_NAME0 = 8'h00; - parameter ADDR_NAME1 = 8'h01; - parameter ADDR_VERSION = 8'h02; - - parameter ADDR_CTRL = 8'h08; - parameter CTRL_INIT_BIT = 0; - parameter CTRL_NEXT_BIT = 1; - - parameter ADDR_STATUS = 8'h09; - parameter STATUS_READY_BIT = 0; - parameter STATUS_VALID_BIT = 1; - - parameter ADDR_BLOCK0 = 8'h10; - parameter ADDR_BLOCK1 = 8'h11; - parameter ADDR_BLOCK2 = 8'h12; - parameter ADDR_BLOCK3 = 8'h13; - parameter ADDR_BLOCK4 = 8'h14; - parameter ADDR_BLOCK5 = 8'h15; - parameter ADDR_BLOCK6 = 8'h16; - parameter ADDR_BLOCK7 = 8'h17; - parameter ADDR_BLOCK8 = 8'h18; - parameter ADDR_BLOCK9 = 8'h19; - parameter ADDR_BLOCK10 = 8'h1a; - parameter ADDR_BLOCK11 = 8'h1b; - parameter ADDR_BLOCK12 = 8'h1c; - parameter ADDR_BLOCK13 = 8'h1d; - parameter ADDR_BLOCK14 = 8'h1e; - parameter ADDR_BLOCK15 = 8'h1f; - - parameter ADDR_DIGEST0 = 8'h20; - parameter ADDR_DIGEST1 = 8'h21; - parameter ADDR_DIGEST2 = 8'h22; - parameter ADDR_DIGEST3 = 8'h23; - parameter ADDR_DIGEST4 = 8'h24; - parameter ADDR_DIGEST5 = 8'h25; - parameter ADDR_DIGEST6 = 8'h26; - parameter ADDR_DIGEST7 = 8'h27; - - parameter CORE_NAME0 = 32'h73686132; // "sha2" - parameter CORE_NAME1 = 32'h2d323536; // "-256" - parameter CORE_VERSION = 32'h302e3830; // "0.80" + localparam ADDR_NAME0 = 8'h00; + localparam ADDR_NAME1 = 8'h01; + localparam ADDR_VERSION = 8'h02; + + localparam ADDR_CTRL = 8'h08; + localparam CTRL_INIT_BIT = 0; + localparam CTRL_NEXT_BIT = 1; + + localparam ADDR_STATUS = 8'h09; + localparam STATUS_READY_BIT = 0; + localparam STATUS_VALID_BIT = 1; + + localparam ADDR_BLOCK0 = 8'h10; + localparam ADDR_BLOCK1 = 8'h11; + localparam ADDR_BLOCK2 = 8'h12; + localparam ADDR_BLOCK3 = 8'h13; + localparam ADDR_BLOCK4 = 8'h14; + localparam ADDR_BLOCK5 = 8'h15; + localparam ADDR_BLOCK6 = 8'h16; + localparam ADDR_BLOCK7 = 8'h17; + localparam ADDR_BLOCK8 = 8'h18; + localparam ADDR_BLOCK9 = 8'h19; + localparam ADDR_BLOCK10 = 8'h1a; + localparam ADDR_BLOCK11 = 8'h1b; + localparam ADDR_BLOCK12 = 8'h1c; + localparam ADDR_BLOCK13 = 8'h1d; + localparam ADDR_BLOCK14 = 8'h1e; + localparam ADDR_BLOCK15 = 8'h1f; + + localparam ADDR_DIGEST0 = 8'h20; + localparam ADDR_DIGEST1 = 8'h21; + localparam ADDR_DIGEST2 = 8'h22; + localparam ADDR_DIGEST3 = 8'h23; + localparam ADDR_DIGEST4 = 8'h24; + localparam ADDR_DIGEST5 = 8'h25; + localparam ADDR_DIGEST6 = 8'h26; + localparam ADDR_DIGEST7 = 8'h27; + + localparam ADDR_STATE0 = 8'h30; + localparam ADDR_STATE1 = 8'h31; + localparam ADDR_STATE2 = 8'h32; + localparam ADDR_STATE3 = 8'h33; + localparam ADDR_STATE4 = 8'h34; + localparam ADDR_STATE5 = 8'h35; + localparam ADDR_STATE6 = 8'h36; + localparam ADDR_STATE7 = 8'h37; + + localparam CORE_NAME0 = 32'h73686132; // "sha2" + localparam CORE_NAME1 = 32'h2d323536; // "-256" + localparam CORE_VERSION = 32'h302e3831; // "0.81" //---------------------------------------------------------------- @@ -162,6 +171,23 @@ module sha256( wire [255 : 0] core_digest; wire core_digest_valid; + wire [31 : 0] state0_rd_data; + reg state0_we; + wire [31 : 0] state1_rd_data; + reg state1_we; + wire [31 : 0] state2_rd_data; + reg state2_we; + wire [31 : 0] state3_rd_data; + reg state3_we; + wire [31 : 0] state4_rd_data; + reg state4_we; + wire [31 : 0] state5_rd_data; + reg state5_we; + wire [31 : 0] state6_rd_data; + reg state6_we; + wire [31 : 0] state7_rd_data; + reg state7_we; + reg [31 : 0] tmp_read_data; reg tmp_error; @@ -194,6 +220,39 @@ module sha256( .block(core_block), + // State access ports + .H0_wr_data(write_data), + .H0_we(state0_we), + .H0_rd_data(state0_rd_data), + + .H1_wr_data(write_data), + .H1_we(state1_we), + .H1_rd_data(state1_rd_data), + + .H2_wr_data(write_data), + .H2_we(state2_we), + .H2_rd_data(state2_rd_data), + + .H3_wr_data(write_data), + .H3_we(state3_we), + .H3_rd_data(state3_rd_data), + + .H4_wr_data(write_data), + .H4_we(state4_we), + .H4_rd_data(state4_rd_data), + + .H5_wr_data(write_data), + .H5_we(state5_we), + .H5_rd_data(state5_rd_data), + + .H6_wr_data(write_data), + .H6_we(state6_we), + .H6_rd_data(state6_rd_data), + + .H7_wr_data(write_data), + .H7_we(state7_we), + .H7_rd_data(state7_rd_data), + .ready(core_ready), .digest(core_digest), @@ -400,6 +459,15 @@ module sha256( block13_we = 0; block14_we = 0; block15_we = 0; + state0_we = 0; + state1_we = 0; + state2_we = 0; + state3_we = 0; + state4_we = 0; + state5_we = 0; + state6_we = 0; + state7_we = 0; + tmp_read_data = 32'h00000000; tmp_error = 0; @@ -495,6 +563,30 @@ module sha256( block15_we = 1; end + ADDR_STATE0: + state0_we = 1; + + ADDR_STATE1: + state1_we = 1; + + ADDR_STATE2: + state2_we = 1; + + ADDR_STATE3: + state3_we = 1; + + ADDR_STATE4: + state4_we = 1; + + ADDR_STATE5: + state5_we = 1; + + ADDR_STATE6: + state6_we = 1; + + ADDR_STATE7: + state7_we = 1; + default: begin tmp_error = 1; @@ -651,6 +743,30 @@ module sha256( tmp_read_data = digest_reg[31 : 0]; end + ADDR_STATE0: + tmp_read_data = state0_rd_data; + + ADDR_STATE1: + tmp_read_data = state1_rd_data; + + ADDR_STATE2: + tmp_read_data = state2_rd_data; + + ADDR_STATE3: + tmp_read_data = state3_rd_data; + + ADDR_STATE4: + tmp_read_data = state4_rd_data; + + ADDR_STATE5: + tmp_read_data = state5_rd_data; + + ADDR_STATE6: + tmp_read_data = state6_rd_data; + + ADDR_STATE7: + tmp_read_data = state7_rd_data; + default: begin tmp_error = 1; diff --git a/src/rtl/sha256_core.v b/src/rtl/sha256_core.v index a88a359..dbcec3b 100644 --- a/src/rtl/sha256_core.v +++ b/src/rtl/sha256_core.v @@ -45,6 +45,39 @@ module sha256_core( input wire [511 : 0] block, + // State access ports + input wire [31 : 0] H0_wr_data, + input wire H0_we, + output wire [31 : 0] H0_rd_data, + + input wire [31 : 0] H1_wr_data, + input wire H1_we, + output wire [31 : 0] H1_rd_data, + + input wire [31 : 0] H2_wr_data, + input wire H2_we, + output wire [31 : 0] H2_rd_data, + + input wire [31 : 0] H3_wr_data, + input wire H3_we, + output wire [31 : 0] H3_rd_data, + + input wire [31 : 0] H4_wr_data, + input wire H4_we, + output wire [31 : 0] H4_rd_data, + + input wire [31 : 0] H5_wr_data, + input wire H5_we, + output wire [31 : 0] H5_rd_data, + + input wire [31 : 0] H6_wr_data, + input wire H6_we, + output wire [31 : 0] H6_rd_data, + + input wire [31 : 0] H7_wr_data, + input wire H7_we, + output wire [31 : 0] H7_rd_data, + output wire ready, output wire [255 : 0] digest, |