[Cryptech-Commits] [core/util/keywrap] 40/95: Good news: The core peformcs all AES operations and stops after correct number of operations. Bad news: All values are wrong.
git at cryptech.is
git at cryptech.is
Wed Mar 25 17:18:39 UTC 2020
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paul at psgd.org pushed a commit to branch master
in repository core/util/keywrap.
commit 156237ce5cd113bb3bb97abb02d6c3d962033d8d
Author: Joachim Strömbergson <joachim at secworks.se>
AuthorDate: Tue Jul 3 14:28:30 2018 +0200
Good news: The core peformcs all AES operations and stops after correct number of operations. Bad news: All values are wrong.
---
src/rtl/keywrap.v | 2 +-
src/rtl/keywrap_core.v | 5 +++--
src/tb/tb_keywrap.v | 18 ++++++++++++------
3 files changed, 16 insertions(+), 9 deletions(-)
diff --git a/src/rtl/keywrap.v b/src/rtl/keywrap.v
index edfd8c3..02a426c 100644
--- a/src/rtl/keywrap.v
+++ b/src/rtl/keywrap.v
@@ -266,7 +266,7 @@ module keywrap(
config_we = 1'h1;
if (address == ADDR_RLEN)
- config_we = 1'h1;
+ rlen_we = 1'h1;
if (address == ADDR_A0)
a0_we = 1'h1;
diff --git a/src/rtl/keywrap_core.v b/src/rtl/keywrap_core.v
index d476152..59dbacb 100644
--- a/src/rtl/keywrap_core.v
+++ b/src/rtl/keywrap_core.v
@@ -82,8 +82,8 @@ module keywrap_core (
localparam CTRL_NEXT_WAIT0 = 4'h6;
localparam CTRL_NEXT_WAIT = 4'h7;
localparam CTRL_NEXT_UPDATE = 4'h9;
- localparam CTRL_NEXT_CHECK = 4'h9;
- localparam CTRL_NEXT_FINALIZE = 4'ha;
+ localparam CTRL_NEXT_CHECK = 4'ha;
+ localparam CTRL_NEXT_FINALIZE = 4'hb;
//----------------------------------------------------------------
@@ -489,6 +489,7 @@ module keywrap_core (
ready_we = 1'h1;
valid_new = 1'h1;
valid_we = 1'h1;
+ api_addr_ctr_rst = 1'h1;
keywrap_core_ctrl_new = CTRL_IDLE;
keywrap_core_ctrl_we = 1'h1;
end
diff --git a/src/tb/tb_keywrap.v b/src/tb/tb_keywrap.v
index 8a8344b..aac3656 100644
--- a/src/tb/tb_keywrap.v
+++ b/src/tb/tb_keywrap.v
@@ -257,10 +257,15 @@ module tb_keywrap();
$display("core level state:");
$display("init = 0x%0x next = 0x%0x ready = 0x%0x valid = 0x%0x",
dut.core.init, dut.core.next, dut.core.ready, dut.core.valid);
+ $display("rlen = 0x%0x", dut.core.rlen);
$display("key = 0x%0x", dut.core.key);
$display("a_init = 0x%0x a_result = 0x%0x", dut.core.a_init, dut.core.a_result);
$display("a_reg = 0x%0x", dut.core.a_reg);
+ $display("block_ctr_reg = 0x%0x iteration_ctr_reg = 0x%0x",
+ dut.core.block_ctr_reg, dut.core.iteration_ctr_reg);
$display("keywrap_core_ctrl_reg = 0x%0x", dut.core.keywrap_core_ctrl_reg);
+ $display("keywrap_core_ctrl_new = 0x%0x", dut.core.keywrap_core_ctrl_new);
+ $display("keywrap_core_ctrl_we = 0x%0x", dut.core.keywrap_core_ctrl_we);
end
$display("");
@@ -360,12 +365,6 @@ module tb_keywrap();
$display("* Init should be done.");
- // Write magic words to the A state regs.
- // Also set the rlen.
- write_word(ADDR_A0, 32'ha65959a6);
- write_word(ADDR_A1, 32'h0000001f);
- write_word(ADDR_RLEN, 32'h00000004);
-
// Write the R blocks to be processed.
write_word(ADDR_WRITE_DATA, 32'hcdda4200);
write_word(ADDR_WRITE_DATA, 32'h46f87f58);
@@ -379,6 +378,13 @@ module tb_keywrap();
write_word(ADDR_WRITE_DATA, 32'h45a28800);
write_word(ADDR_WRITE_DATA, 32'h5f37a27d);
+ // Write magic words to the A state regs.
+ // Also set the rlen.
+ write_word(ADDR_A0, 32'ha65959a6);
+ write_word(ADDR_A1, 32'h0000001f);
+ write_word(ADDR_RLEN, 32'h00000004);
+
+
$display("* Contents of memory and dut before wrap processing:");
dump_mem(6);
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