Function at 0x51ef8d
Capabilities:
Encode data using xor

Disassembly:
push ebx
mov ebx, dword [esp + 8]
push ebp
mov ebp, dword [esp + 0x18]
push esi
cmp dword [ebx + 0xe8], 0
mov esi, dword [esp + 0x18]
push edi
je 0x51efb1
mov eax, dword [ebx + 0x84]
sub eax, esi
dec eax
jmp 0x51efb3
mov eax, esi
mov edi, dword [ebx + 0xcc]
mov edx, dword [ebx + 0xd4]
mov ecx, dword [esp + 0x18]
imul edi, eax
mov eax, edx
imul eax, ecx
add edi, eax
add edi, dword [ebx + 0xc8]
cmp dword [ebx + 0xe0], 0
jne 0x51f3e0
cmp dword [ebx + 0xe4], 0
jne 0x51f3e0
mov eax, dword [ebx + 0xd8]
test al, 2
je 0x51f029
test ebp, ebp
je 0x51f404
mov al, byte [ebx + 0xf0]
xor byte [edi + 2], al
mov al, byte [ebx + 0xf4]
xor byte [edi + 1], al
mov al, byte [ebx + 0xf8]
xor byte [edi], al
add edi, dword [ebx + 0xd4]
sub ebp, 1
jne 0x51efff
jmp 0x51f404
test eax, 0x100
je 0x51f068
test ebp, ebp
je 0x51f404
mov al, byte [ebx + 0xf0]
mov byte [edi + 2], al
mov al, byte [ebx + 0xf4]
mov byte [edi + 1], al
mov al, byte [ebx + 0xf8]
mov byte [edi], al
lea edi, [edi + 4]
mov al, byte [ebx + 0xfc]
mov byte [edi - 1], al
sub ebp, 1
jne 0x51f038
jmp 0x51f404
test al, 8
je 0x51f095
cmp edx, 4
jne 0x51f404
test ebp, ebp
je 0x51f404
add edi, 3
mov al, byte [ebx + 0xfc]
mov byte [edi], al
lea edi, [edi + 4]
sub ebp, 1
jne 0x51f080
jmp 0x51f404
test al, 0x10
je 0x51f238
test ebp, ebp
je 0x51f404
cmp edx, 4
jne 0x51f1e3
movzx edx, byte [edi + 3]
lea ecx, [edi + 2]
mov esi, dword [ebx + 0xfc]
mov dword [esp + 0x18], edx
test esi, esi
jne 0x51f0c8
movzx eax, byte [ecx]
jmp 0x51f10d
mov dword [esp + 0x14], ecx
test edx, edx
jne 0x51f0d8
mov eax, dword [ebx + 0xf0]
jmp 0x51f106
movzx eax, byte [ecx]
mov esi, dword [ebx + 0x100]
imul ecx, dword [ebx + 0xf0], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
add esi, ecx
mov ecx, dword [esp + 0x14]
cdq
idiv esi
mov edx, dword [esp + 0x18]
mov byte [ecx], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x51f11f
movzx eax, byte [edi + 1]
jmp 0x51f15c
test edx, edx
jne 0x51f12e
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x51f15c
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 1]
imul ecx, dword [ebx + 0xf4], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi + 1], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x51f16e
movzx eax, byte [edi]
jmp 0x51f1ae
mov edx, dword [esp + 0x18]
test edx, edx
jne 0x51f181
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x51f1ae
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi]
imul ecx, dword [ebx + 0xf8], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi], al
mov eax, dword [ebx + 0x100]
imul eax, dword [esp + 0x18]
imul ecx, dword [ebx + 0xfc], 0xff
add eax, ecx
mov ecx, 0xff
cdq
idiv ecx
mov byte [edi + 3], al
add edi, 4
sub ebp, 1
jne 0x51f0ae
jmp 0x51f404
mov ecx, 0xff
movzx eax, byte [edi + 2]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf0]
cdq
idiv ecx
mov byte [edi + 2], al
movzx eax, byte [edi + 1]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf4]
cdq
idiv ecx
mov byte [edi + 1], al
movzx eax, byte [edi]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf8]
cdq
idiv ecx
mov byte [edi], al
lea edi, [edi + 3]
sub ebp, 1
jne 0x51f1e8
jmp 0x51f404
and eax, 0x20
test ebp, ebp
je 0x51f404
test eax, eax
je 0x51f3b9
cmp edx, 4
jne 0x51f367
movzx edx, byte [edi + 3]
lea ecx, [edi + 2]
mov esi, dword [ebx + 0xfc]
mov dword [esp + 0x18], edx
test esi, esi
jne 0x51f26e
movzx eax, byte [ecx]
jmp 0x51f2b3
mov dword [esp + 0x14], ecx
test edx, edx
jne 0x51f27e
mov eax, dword [ebx + 0xf0]
jmp 0x51f2ac
movzx eax, byte [ecx]
mov esi, dword [ebx + 0x100]
imul ecx, dword [ebx + 0xf0], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
add esi, ecx
mov ecx, dword [esp + 0x14]
cdq
idiv esi
mov edx, dword [esp + 0x18]
mov byte [ecx], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x51f2c5
movzx eax, byte [edi + 1]
jmp 0x51f302
test edx, edx
jne 0x51f2d4
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x51f302
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 1]
imul ecx, dword [ebx + 0xf4], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi + 1], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x51f314
movzx eax, byte [edi]
jmp 0x51f354
mov edx, dword [esp + 0x18]
test edx, edx
jne 0x51f327
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x51f354
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi]
imul ecx, dword [ebx + 0xf8], 0xff
imul eax, esi
imul esi, edx
imul eax, edx
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi], al
add edi, 4
sub ebp, 1
jne 0x51f254
jmp 0x51f404
mov ecx, 0xff
movzx eax, byte [edi + 2]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf0]
cdq
idiv ecx
mov byte [edi + 2], al
movzx eax, byte [edi + 1]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf4]
cdq
idiv ecx
mov byte [edi + 1], al
movzx eax, byte [edi]
imul eax, dword [ebx + 0x100]
add eax, dword [ebx + 0xf8]
cdq
idiv ecx
mov byte [edi], al
lea edi, [edi + 3]
sub ebp, 1
jne 0x51f36c
jmp 0x51f404
mov al, byte [ebx + 0xf0]
mov byte [edi + 2], al
mov al, byte [ebx + 0xf4]
mov byte [edi + 1], al
mov al, byte [ebx + 0xf8]
mov byte [edi], al
add edi, dword [ebx + 0xd4]
sub ebp, 1
jne 0x51f3b9
jmp 0x51f404
test ebp, ebp
je 0x51f404
push edi
push esi
push ecx
push ebx
call fcn.0051ead2
mov ecx, dword [esp + 0x28]
add esp, 0x10
add edi, dword [ebx + 0xd4]
inc ecx
mov dword [esp + 0x18], ecx
sub ebp, 1
jne 0x51f3e4
pop edi
pop esi
pop ebp
pop ebx
ret