diff options
Diffstat (limited to 'src/rtl/sha1_core.v')
| -rw-r--r-- | src/rtl/sha1_core.v | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/rtl/sha1_core.v b/src/rtl/sha1_core.v index d055467..9078018 100644 --- a/src/rtl/sha1_core.v +++ b/src/rtl/sha1_core.v @@ -44,9 +44,13 @@ module sha1_core( input wire init, input wire next, + input wire set, input wire [511 : 0] block, + input wire [159 : 0] state_in, + output wire [159 : 0] state_out, + output wire ready, output wire [159 : 0] digest, @@ -119,6 +123,7 @@ module sha1_core( reg digest_update; reg init_state; reg update_state; + reg set_state; reg first_block; reg ready_flag; reg w_init; @@ -146,6 +151,7 @@ module sha1_core( // Concurrent connectivity for ports etc. //---------------------------------------------------------------- assign ready = ready_flag; + assign state_out = {e_reg, d_reg, c_reg, b_reg, a_reg}; assign digest = {H0_reg, H1_reg, H2_reg, H3_reg, H4_reg}; assign digest_valid = digest_valid_reg; @@ -321,6 +327,16 @@ module sha1_core( e_new = d_reg; a_e_we = 1; end + + if (set_state) + begin + a_new = state_in[031 : 000]; + b_new = state_in[063 : 032]; + c_new = state_in[095 : 064]; + d_new = state_in[127 : 096]; + e_new = state_in[159 : 128]; + a_e_we = 1; + end end // state_logic @@ -359,6 +375,7 @@ module sha1_core( digest_update = 0; init_state = 0; update_state = 0; + set_state = 0; first_block = 0; ready_flag = 0; w_init = 0; @@ -375,6 +392,11 @@ module sha1_core( begin ready_flag = 1; + if (set) + begin + set_state = 1'h1; + end + if (init) begin digest_init = 1; |