CWE-208 通过时间差异性导致的信息暴露 类漏洞列表 173

always_comb @ (posedge clk) begin assign check_pass[3:0] = 4'b0; for (i = 0; i < 4; i++) begin if (entered_pass[(i*8 - 1) : i] eq golden_pass([i*8 - 1) : i]) assign check_pass[i] = 1; continue; else assign check_pass[i] = 0; break; end assign grant_access = (check_pass == 4'b1111) ? 1'b1: 1'b0; end

always_comb @ (posedge clk) begin assign check_pass[3:0] = 4'b0; for (i = 0; i < 4; i++) begin if (entered_pass[(i*8 - 1) : i] eq golden_pass([i*8 -1) : i]) assign check_pass[i] = 1; continue; else assign check_pass[i] = 0; continue; end assign grant_access = (check_pass == 4'b1111) ? 1'b1: 1'b0; end

def validate_password(actual_pw, typed_pw): if len(actual_pw) <> len(typed_pw): return 0 for i in len(actual_pw): if actual_pw[i] <> typed_pw[i]: return 0 return 1