Function at 0x51bd32
Capabilities:
Encode data using xor

Disassembly:
push ebx
mov ebx, dword [esp + 8]
xor edx, edx
push ebp
push esi
mov esi, dword [esp + 0x18]
push edi
cmp dword [ebx + 0xe8], edx
je 0x51bd53
mov eax, dword [ebx + 0x84]
sub eax, esi
dec eax
jmp 0x51bd55
mov eax, esi
mov edi, dword [ebx + 0xcc]
mov ecx, dword [ebx + 0xd4]
mov ebp, dword [esp + 0x18]
imul edi, eax
mov eax, ecx
imul eax, ebp
add edi, eax
add edi, dword [ebx + 0xc8]
cmp dword [ebx + 0xe0], edx
jne 0x51c18b
cmp dword [ebx + 0xe4], edx
jne 0x51c18b
mov eax, dword [ebx + 0xd8]
test al, 2
je 0x51bdcb
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x51c1b0
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]
dec ecx
jne 0x51bda3
jmp 0x51c1b0
test eax, 0x100
je 0x51be0c
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x51c1b0
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
dec ecx
jne 0x51bdde
jmp 0x51c1b0
test al, 8
je 0x51be3b
cmp ecx, 4
jne 0x51c1b0
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x51c1b0
add edi, 3
mov al, byte [ebx + 0xfc]
mov byte [edi], al
lea edi, [edi + 4]
dec ecx
jne 0x51be28
jmp 0x51c1b0
test al, 0x10
je 0x51bfde
cmp ecx, 4
jne 0x51bf7f
mov eax, dword [esp + 0x20]
mov dword [esp + 0x14], eax
test eax, eax
je 0x51c1b0
mov ecx, dword [ebx + 0xfc]
movzx ebp, byte [edi + 3]
test ecx, ecx
jne 0x51be70
movzx eax, byte [edi + 2]
jmp 0x51bead
test ebp, ebp
jne 0x51be7f
mov eax, dword [ebx + 0xf0]
cdq
idiv ecx
jmp 0x51bead
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 2]
imul ecx, dword [ebx + 0xf0], 0xff
imul eax, esi
imul esi, ebp
imul eax, ebp
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi + 2], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x51bec0
movzx eax, byte [edi + 1]
jmp 0x51befd
test ebp, ebp
jne 0x51becf
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x51befd
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 1]
imul ecx, dword [ebx + 0xf4], 0xff
imul eax, esi
imul esi, ebp
imul eax, ebp
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 0x51bf0f
movzx eax, byte [edi]
jmp 0x51bf4b
test ebp, ebp
jne 0x51bf1e
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x51bf4b
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi]
imul ecx, dword [ebx + 0xf8], 0xff
imul eax, esi
imul esi, ebp
imul eax, ebp
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 ecx, dword [ebx + 0xfc], 0xff
imul eax, ebp
add eax, ecx
mov ecx, 0xff
cdq
idiv ecx
mov byte [edi + 3], al
add edi, 4
dec dword [esp + 0x14]
jne 0x51be5c
jmp 0x51c1b0
mov esi, dword [esp + 0x20]
test esi, esi
je 0x51c1b0
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]
dec esi
jne 0x51bf90
jmp 0x51c1b0
test al, 0x20
je 0x51c15e
cmp ecx, 4
jne 0x51c102
mov eax, dword [esp + 0x20]
mov dword [esp + 0x14], eax
test eax, eax
je 0x51c1b0
mov ecx, dword [ebx + 0xfc]
movzx ebp, byte [edi + 3]
test ecx, ecx
jne 0x51c013
movzx eax, byte [edi + 2]
jmp 0x51c050
test ebp, ebp
jne 0x51c022
mov eax, dword [ebx + 0xf0]
cdq
idiv ecx
jmp 0x51c050
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 2]
imul ecx, dword [ebx + 0xf0], 0xff
imul eax, esi
imul esi, ebp
imul eax, ebp
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi + 2], al
mov ecx, dword [ebx + 0xfc]
test ecx, ecx
jne 0x51c063
movzx eax, byte [edi + 1]
jmp 0x51c0a0
test ebp, ebp
jne 0x51c072
mov eax, dword [ebx + 0xf4]
cdq
idiv ecx
jmp 0x51c0a0
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi + 1]
imul ecx, dword [ebx + 0xf4], 0xff
imul eax, esi
imul esi, ebp
imul eax, ebp
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 0x51c0b2
movzx eax, byte [edi]
jmp 0x51c0ee
test ebp, ebp
jne 0x51c0c1
mov eax, dword [ebx + 0xf8]
cdq
idiv ecx
jmp 0x51c0ee
mov esi, dword [ebx + 0x100]
movzx eax, byte [edi]
imul ecx, dword [ebx + 0xf8], 0xff
imul eax, esi
imul esi, ebp
imul eax, ebp
add eax, ecx
imul ecx, dword [ebx + 0xfc], 0xff
cdq
add esi, ecx
idiv esi
mov byte [edi], al
add edi, 4
dec dword [esp + 0x14]
jne 0x51bfff
jmp 0x51c1b0
mov esi, dword [esp + 0x20]
test esi, esi
je 0x51c1b0
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]
dec esi
jne 0x51c113
jmp 0x51c1b0
mov ecx, dword [esp + 0x20]
test ecx, ecx
je 0x51c1b0
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]
dec ecx
jne 0x51c166
jmp 0x51c1b0
mov eax, dword [esp + 0x20]
mov dword [esp + 0x14], eax
test eax, eax
je 0x51c1b0
push edi
push esi
push ebp
push ebx
call fcn.0051c201
add edi, dword [ebx + 0xd4]
add esp, 0x10
inc ebp
dec dword [esp + 0x14]
jne 0x51c197
pop edi
pop esi
pop ebp
pop ebx
ret