U2W_Decrypt from 2021.03.06

[ludwig-v]

ARMimg_maker has been updated by Carlinkit with a new "encryption" method, it has to be reversed again

[hassankhan]

Not sure if it helps, I was just poking around and thought it might be helpful?

$ objdump -p ARMimg_maker

ARMimg_maker:	file format ELF32-arm-little

Program Header:
 UNKNOWN off    0x000008a8 vaddr 0x000108a8 paddr 0x000108a8 align 2**2
         filesz 0x00000010 memsz 0x00000010 flags r--
    PHDR off    0x00000034 vaddr 0x00010034 paddr 0x00010034 align 2**2
         filesz 0x00000100 memsz 0x00000100 flags r-x
  INTERP off    0x00000134 vaddr 0x00010134 paddr 0x00010134 align 2**0
         filesz 0x00000013 memsz 0x00000013 flags r--
    LOAD off    0x00000000 vaddr 0x00010000 paddr 0x00010000 align 2**16
         filesz 0x000008bc memsz 0x000008bc flags r-x
    LOAD off    0x000008bc vaddr 0x000208bc paddr 0x000208bc align 2**16
         filesz 0x0000014c memsz 0x00000250 flags rw-
 DYNAMIC off    0x000008c8 vaddr 0x000208c8 paddr 0x000208c8 align 2**2
         filesz 0x00000100 memsz 0x00000100 flags rw-
    NOTE off    0x00000148 vaddr 0x00010148 paddr 0x00010148 align 2**2
         filesz 0x00000020 memsz 0x00000020 flags r--
   STACK off    0x00000000 vaddr 0x00000000 paddr 0x00000000 align 2**4
         filesz 0x00000000 memsz 0x00000000 flags rw-

Dynamic Section:
  NEEDED               libstdc++.so.6
  NEEDED               libm.so.6
  NEEDED               libgcc_s.so.1
  NEEDED               libc.so.6
  INIT                 0x00010458
  FINI                 0x00010768
  INIT_ARRAY           0x000208bc
  INIT_ARRAYSZ         0x00000004
  FINI_ARRAY           0x000208c0
  FINI_ARRAYSZ         0x00000004
  HASH                 0x00010168
  STRTAB               0x000102a8
  SYMTAB               0x000101b8
  STRSZ                0x000000f9
  SYMENT               0x00000010
  DEBUG                0x00000000
  PLTGOT               0x000209c8
  PLTRELSZ             0x00000050
  PLTREL               0x00000011
  JMPREL               0x00010408
  REL                  0x00010400
  RELSZ                0x00000008
  RELENT               0x00000008
  VERNEED              0x000103c0
  VERNEEDNUM           0x00000002
  VERSYM               0x000103a2
Version References:
  required from libgcc_s.so.1:
    0x0b792655 0x00 03 GCC_3.5
  required from libc.so.6:
    0x0d696914 0x00 02 GLIBC_2.4