mirror of
https://github.com/veracrypt/VeraCrypt.git
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GOST89 parameters swap (6.3)
Cached boot password added
This commit is contained in:
kavsrf
Mounir IDRASSI
parent
9b1c447df1
commit
17eeaa43cf
2 changed files with 90 additions and 87 deletions
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@ -5,7 +5,8 @@ Copyright (c) 2016. Disk Cryptography Services for EFI (DCS), Alex Kolotnikov
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This program and the accompanying materials
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are licensed and made available under the terms and conditions
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of the Apache License, Version 2.0. The full text of the license may be found at
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of the Apache License, Version 2.0.
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The full text of the license may be found at
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https://opensource.org/licenses/Apache-2.0
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Dynamic SBOX idea is from GostCrypt project. Copyright (c) 2008-2011 TrueCrypt Developers Association
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@ -5,7 +5,9 @@
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;
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; This program and the accompanying materials
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; are licensed and made available under the terms and conditions
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; of the Apache License, Version 2.0. The full text of the license may be found at
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; of the Apache License, Version 2.0.
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;
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; The full text of the license may be found at
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; https://opensource.org/licenses/Apache-2.0
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;
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; Some ideas from article https://xakep.ru/2013/10/19/shifrovanie-gost-28147-89/
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@ -107,17 +109,17 @@
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mov eax, [r8 + %2*4] ; read key
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%endmacro
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; input: r8 - &key, rdx - &IN
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; input: r8 - &key, rcx - &IN
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; returns: (r13) & (r10)
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GostEncrypt2x64:
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; 1st
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mov r13d, [rdx]
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mov r14, [rdx]
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mov r13d, [rcx]
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mov r14, [rcx]
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shr r14, 32
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; 2nd
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mov r10d, [rdx + 16]
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mov r11, [rdx + 16]
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mov r10d, [rcx + 16]
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mov r11, [rcx + 16]
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shr r11, 32
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mov ecx, [r8]
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@ -150,17 +152,17 @@ GostEncrypt2x64:
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or r10, r11
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ret
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; input: r8 - &key, rdx - &IN
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; input: r8 - &key, rcx - &IN
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; returns: (r13) & (r10)
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GostDecrypt2x64:
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; 1st
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mov r13d, [rdx]
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mov r14, [rdx]
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mov r13d, [rcx]
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mov r14, [rcx]
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shr r14, 32
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; 2nd
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mov r10d, [rdx + 16]
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mov r11, [rdx + 16]
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mov r10d, [rcx + 16]
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mov r11, [rcx + 16]
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shr r11, 32
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mov ecx, [r8]
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@ -227,11 +229,11 @@ ret
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mov ecx, [r8 + %2*4] ; read key
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%endmacro
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; input: r8 - &gost_kds rdx - &IN
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; input: r8 - &gost_kds rcx - &IN
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; returns: r13
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GostEncrypt1x64:
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mov r13d, [rdx]
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mov r14, [rdx]
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mov r13d, [rcx]
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mov r14, [rcx]
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shr r14, 32
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mov ecx, [r8]
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@ -259,11 +261,11 @@ GostEncrypt1x64:
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or r13, r14
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ret
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; input: r8 - &gost_kds rdx - IN
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; input: r8 - &gost_kds rcx - IN
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; returns: r13
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GostDecrypt1x64:
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mov r13d, [rdx]
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mov r14, [rdx]
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mov r13d, [rcx]
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mov r14, [rcx]
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shr r14, 32
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mov ecx, [r8]
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@ -291,17 +293,17 @@ GostDecrypt1x64:
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or r13, r14
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ret
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global gost_encrypt_128_CBC_asm ; gost_encrypt_128_CBC_asm(uint64* out, uint64* in, gost_kds* kds, uint64 count);
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; rcx - &out
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; rdx - &in
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global gost_encrypt_128_CBC_asm ; gost_encrypt_128_CBC_asm(uint64* in, uint64* out, gost_kds* kds, uint64 count);
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; rcx - &in
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; rdx - &out
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; r8 - &gost_kds
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; r9 - count
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gost_encrypt_128_CBC_asm:
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SaveRegs ; Saving
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sub rsp, 32
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mov [rsp], rcx ; Save out addr
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mov [rsp + 8], rdx ; Save in addr
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mov [rsp], rdx ; Save out addr
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mov [rsp + 8], rcx ; Save in addr
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mov [rsp + 16], r8 ; key addr
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.do:
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@ -314,32 +316,32 @@ gost_encrypt_128_CBC_asm:
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; One 128 block encryption
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.blk1:
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mov rdx, [rsp + 8] ; set in addr
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mov rcx, [rsp + 8] ; set in addr
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call GostEncrypt1x64
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mov rcx, [rsp] ; Restore out
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mov rdx, [rsp + 8] ; restore in
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mov rdx, [rsp] ; Restore out
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mov rcx, [rsp + 8] ; restore in
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mov [rcx], r13
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mov rax, [rdx + 8]
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mov [rdx], r13
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mov rax, [rcx + 8]
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xor rax, r13 ; CBC
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add rcx, 8 ;next 8 bytes
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mov [rcx], rax
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add rdx, 8 ;next 8 bytes
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mov [rdx], rax
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mov rdx, rcx
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mov rcx, rdx
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call GostEncrypt1x64
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mov rcx, [rsp] ; Restore out addr
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mov rdx, [rsp+8] ; Restore in addr
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mov rdx, [rsp] ; Restore out addr
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mov rcx, [rsp+8] ; Restore in addr
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mov [rcx + 8], r13
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mov [rdx + 8], r13
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add rcx,16
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mov [rsp], rcx
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add rdx,16
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mov [rsp], rdx
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add rdx, 16
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mov [rsp+8], rdx
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add rcx, 16
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mov [rsp+8], rcx
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mov r9, [rsp + 24]
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dec r9
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@ -347,41 +349,41 @@ gost_encrypt_128_CBC_asm:
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jmp .do
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.blk2:
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mov rdx, [rsp + 8] ; set in addr
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mov rcx, [rsp + 8] ; set in addr
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call GostEncrypt2x64
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mov rcx, [rsp] ; Restore out
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mov rdx, [rsp + 8] ; restore in
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mov rdx, [rsp] ; Restore out
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mov rcx, [rsp + 8] ; restore in
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mov [rcx], r13
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mov [rdx], r13
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mov rax, [rdx + 8]
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mov rax, [rcx + 8]
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xor rax, r13 ; CBC
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mov [rcx + 16], r10
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mov [rdx + 16], r10
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mov rbx, [rdx + 24]
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mov rbx, [rcx + 24]
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xor rbx, r10 ; CBC
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mov [rcx + 8], rax
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mov [rcx + 24], rbx
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mov [rdx + 8], rax
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mov [rdx + 24], rbx
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add rcx, 8 ;next 8 bytes
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add rdx, 8 ;next 8 bytes
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mov rdx, rcx
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mov rcx, rdx
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call GostEncrypt2x64
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mov rcx, [rsp] ; Restore out addr
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mov rdx, [rsp+8] ; Restore in addr
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mov rdx, [rsp] ; Restore out addr
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mov rcx, [rsp+8] ; Restore in addr
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mov [rcx + 8], r13
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mov [rcx + 24], r10
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mov [rdx + 8], r13
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mov [rdx + 24], r10
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add rcx,32
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mov [rsp], rcx
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add rdx,32
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mov [rsp], rdx
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add rdx, 32
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mov [rsp+8], rdx
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add rcx, 32
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mov [rsp+8], rcx
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mov r9, [rsp + 24]
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sub r9, 2
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@ -393,9 +395,9 @@ gost_encrypt_128_CBC_asm:
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RestoreRegs ; Load
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ret
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global gost_decrypt_128_CBC_asm ; gost_decrypt_128_CBC_asm(uint64* out, uint64* in, const gost_kds* kds, uint64 count);
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; rcx - &out
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; rdx - &in
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global gost_decrypt_128_CBC_asm ; gost_decrypt_128_CBC_asm(uint64* in, uint64* out, const gost_kds* kds, uint64 count);
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; rcx - &in
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; rdx - &out
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; r8 - &gost_kds
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; r9 - count
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gost_decrypt_128_CBC_asm:
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@ -416,26 +418,26 @@ gost_decrypt_128_CBC_asm:
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; One 128 block decryption
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.blk1:
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add rdx, 8
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add rcx, 8
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call GostDecrypt1x64
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mov rcx, [rsp] ; Restore out
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mov rdx, [rsp + 8] ; Restore in
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mov rax, [rdx]
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mov rdx, [rsp] ; Restore out
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mov rcx, [rsp + 8] ; Restore in
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mov rax, [rcx]
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xor rax, r13 ; CBC
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mov [rcx + 8], rax
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mov [rdx + 8], rax
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call GostDecrypt1x64
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mov rcx, [rsp] ; Restore out addr
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mov rdx, [rsp+8] ; Restore in addr
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mov rdx, [rsp] ; Restore out addr
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mov rcx, [rsp+8] ; Restore in addr
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mov [rcx], r13
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mov [rdx], r13
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add rcx,16
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mov [rsp], rcx
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add rdx,16
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mov [rsp], rdx
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add rdx, 16
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mov [rsp+8], rdx
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add rcx, 16
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mov [rsp+8], rcx
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mov r9, [rsp + 24]
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dec r9
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@ -443,32 +445,32 @@ gost_decrypt_128_CBC_asm:
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jmp .do
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.blk2:
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add rdx, 8
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add rcx, 8
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call GostDecrypt2x64
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mov rcx, [rsp] ; Restore out
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mov rdx, [rsp + 8] ; Restore in
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mov rdx, [rsp] ; Restore out
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mov rcx, [rsp + 8] ; Restore in
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mov rax, [rdx]
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mov rax, [rcx]
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xor rax, r13 ; CBC
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mov [rcx + 8], rax
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mov [rdx + 8], rax
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mov rbx, [rdx+16]
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mov rbx, [rcx+16]
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xor rbx, r10 ; CBC
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mov [rcx + 24], rbx
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mov [rdx + 24], rbx
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call GostDecrypt2x64
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mov rcx, [rsp] ; Restore out addr
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mov rdx, [rsp+8] ; Restore in addr
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mov rdx, [rsp] ; Restore out addr
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mov rcx, [rsp+8] ; Restore in addr
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mov [rcx], r13
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mov [rcx+16], r10
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add rcx,32
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mov [rsp], rcx
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mov [rdx], r13
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mov [rdx+16], r10
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add rdx,32
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mov [rsp+8], rdx
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mov [rsp], rdx
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add rcx,32
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mov [rsp+8], rcx
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mov r9, [rsp + 24]
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sub r9, 2
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