lilliput-ae-reference-implementation

commit 3bb2d4e95f9bc5b419444b8f49046b516d9f1034
parent 999b462bb9926d655c753263679227a8eac34fe8
Author: Kévin Le Gouguec <kevin.legouguec@airbus.com>
Date:   Tue,  9 Jul 2019 17:32:37 +0200

Ajustements rédactionnels

Diffstat:
M
CHANGELOG.txt
 | 
22
+++++++++++-----------

1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/CHANGELOG.txt b/CHANGELOG.txt
@@ -94,34 +94,34 @@ add_vhdl
 
 See [spec] and [break] changes in reference implementation. Further changes:
 
-- A more synthetical organisation was chosen. Indeed, Lilliput-II only need encryption and Lilliput-I need encryption and decryption, so LilliputTBCencrypt is always used for lilliput-I and LilliputTBCencryptdecrypt for Lilliput-II. And LilliputTBCdecrypt is no longer described because no version uses it.
+- A simpler file organization was chosen. Lilliput-II only needs encryption, while Lilliput-I needs encryption and decryption, so LilliputTBCencrypt is always used for Lilliput-I and LilliputTBCencryptdecrypt for Lilliput-II. LilliputTBCdecrypt is no longer described because no version uses it.
 
-- For Lilliput-I we change coefficients in tweakey schedule to ensure lane 0 is updated between each decryption round:
+- For Lilliput-I, the inverted multiplications have been updated to match changes to the encryption process:
     - lane 0: Id       => inv(M)
     - lane 1: inv(M)   => inv(M)^2
     - lane 2: inv(M)^2 => inv(M)^3
     - lane 3: inv(M)^3 => inv(M)^4
-    - lane 4: M_R      (unchanged)
-    - lane 5: M_R^2    (unchanged)
-    - lane 6: M_R^3    (unchanged)
+    - lane 4: M_R   (unchanged)
+    - lane 5: M_R^2 (unchanged)
+    - lane 6: M_R^3 (unchanged)
   (inv_multiplication.vhd)
 
-  - Merge Sbox in one file.
+- Merge Sbox in one file.
   (sbox.vhd, inner_sbox_a.vhd, inner_sbox_b, vhd,inner_sbox_c.vhd)
 
-  - Create registers in file roundexe_lilliput.vhd.
+- Create registers in file roundexe_lilliput.vhd.
   (state_key_register.vhd, state_register.vhd, roundexe_lilliput)
 
-  - Reduction of the number of signals.
+- Reduction of the number of signals.
   (chiffrement.vhd)
 
-  - Add self-checking testbench.
+- Add self-checking testbench.
   (top_tb.vhd)
 
-  - Pipeline RoundTweakey extraction and round function.
+- Pipeline RoundTweakey extraction and round function.
   (roundexe_lilliput.vhd, machine_etat_chiffrement.vhd)
 
-  - Isolate input and output from critical path.
+- Isolate input and output from critical path.
   (roundexe_lilliput.vhd, machine_etat_chiffrement.vhd)