Function at 0x51cf50
Capabilities:
Encode data using xor
Encrypt data using aes
Reference aes constants

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x10
push ebx
mov ebx, dword [ebp + 8]
push esi
push edi
mov edi, dword [ebp + 0x10]
mov ecx, dword [ebx + 0x1c]
lea eax, [ecx + 2]
add ecx, ecx
add eax, eax
mov edx, dword [ebx + eax*8]
mov eax, dword [ebp + 0xc]
xor edx, dword [eax]
mov dword [ebp - 4], edx
mov edx, dword [ebx + ecx*8 + 0x24]
xor edx, dword [eax + 4]
mov dword [ebp + 0xc], edx
mov edx, dword [ebx + ecx*8 + 0x28]
xor edx, dword [eax + 8]
mov ebx, dword [ebx + ecx*8 + 0x2c]
xor ebx, dword [eax + 0xc]
mov eax, edx
shr eax, 0x10
movzx ecx, al
mov eax, ebx
shr eax, 8
movzx eax, al
mov esi, dword [ecx*4 + 0x691e70]
mov ecx, dword [ebp - 4]
xor esi, dword [eax*4 + 0x691a70]
mov eax, dword [ebp + 0xc]
shr eax, 0x18
xor esi, dword [eax*4 + 0x692270]
movzx eax, cl
xor esi, dword [eax*4 + 0x691670]
mov eax, ecx
shr eax, 8
movzx ecx, al
mov eax, ebx
shr eax, 0x10
movzx eax, al
mov dword [edi], esi
mov dword [ebp - 0x10], esi
mov esi, dword [ecx*4 + 0x691a70]
xor esi, dword [eax*4 + 0x691e70]
mov eax, edx
shr eax, 0x18
xor esi, dword [eax*4 + 0x692270]
mov eax, dword [ebp + 0xc]
movzx eax, al
xor esi, dword [eax*4 + 0x691670]
mov eax, dword [ebp - 4]
shr eax, 0x10
movzx ecx, al
mov eax, dword [ebp + 0xc]
shr eax, 8
movzx eax, al
mov dword [edi + 4], esi
mov edi, dword [ecx*4 + 0x691e70]
xor edi, dword [eax*4 + 0x691a70]
mov eax, ebx
shr eax, 0x18
xor edi, dword [eax*4 + 0x692270]
movzx eax, dl
shr edx, 8
movzx ecx, dl
mov edx, dword [ebp + 0x10]
xor edi, dword [eax*4 + 0x691670]
mov eax, dword [ebp + 0x10]
mov dword [eax + 8], edi
mov eax, dword [ebp + 0xc]
mov ecx, dword [ecx*4 + 0x691a70]
shr eax, 0x10
movzx eax, al
xor ecx, dword [eax*4 + 0x691e70]
mov eax, dword [ebp - 4]
shr eax, 0x18
xor ecx, dword [eax*4 + 0x692270]
movzx eax, bl
xor ecx, dword [eax*4 + 0x691670]
mov dword [ebp + 0xc], ecx
mov dword [edx + 0xc], ecx
mov ebx, dword [ebp + 8]
mov eax, dword [ebx + 0x1c]
dec eax
mov dword [ebp - 0xc], eax
cmp eax, 1
jle 0x51d1c0
shl eax, 4
add ebx, 0x24
add ebx, eax
mov eax, dword [ebp - 0xc]
dec eax
mov dword [ebp - 8], ebx
mov dword [ebp - 0xc], eax
mov eax, dword [ebx - 4]
xor eax, dword [edx]
mov edx, dword [ebx + 4]
mov dword [ebp - 4], eax
xor edx, edi
mov eax, dword [ebx]
xor eax, esi
mov ebx, dword [ebx + 8]
mov dword [ebp + 0xc], eax
xor ebx, ecx
mov eax, ebx
mov edi, dword [ebp + 0x10]
shr eax, 8
movzx ecx, al
mov eax, edx
shr eax, 0x10
movzx eax, al
mov esi, dword [ecx*4 + 0x691a70]
mov ecx, dword [ebp - 4]
xor esi, dword [eax*4 + 0x691e70]
mov eax, dword [ebp + 0xc]
shr eax, 0x18
xor esi, dword [eax*4 + 0x692270]
movzx eax, cl
xor esi, dword [eax*4 + 0x691670]
mov eax, ecx
shr eax, 8
movzx ecx, al
mov eax, ebx
shr eax, 0x10
movzx eax, al
mov dword [edi], esi
mov dword [ebp - 0x10], esi
mov esi, dword [ecx*4 + 0x691a70]
xor esi, dword [eax*4 + 0x691e70]
mov eax, edx
shr eax, 0x18
xor esi, dword [eax*4 + 0x692270]
mov eax, dword [ebp + 0xc]
movzx eax, al
xor esi, dword [eax*4 + 0x691670]
mov eax, dword [ebp - 4]
shr eax, 0x10
movzx ecx, al
mov eax, dword [ebp + 0xc]
shr eax, 8
movzx eax, al
mov dword [edi + 4], esi
mov edi, dword [ecx*4 + 0x691e70]
xor edi, dword [eax*4 + 0x691a70]
mov eax, ebx
shr eax, 0x18
xor edi, dword [eax*4 + 0x692270]
movzx eax, dl
shr edx, 8
movzx ecx, dl
mov edx, dword [ebp + 0x10]
xor edi, dword [eax*4 + 0x691670]
mov eax, dword [ebp + 0x10]
mov dword [eax + 8], edi
mov eax, dword [ebp + 0xc]
mov ecx, dword [ecx*4 + 0x691a70]
shr eax, 0x10
movzx eax, al
xor ecx, dword [eax*4 + 0x691e70]
mov eax, dword [ebp - 4]
shr eax, 0x18
xor ecx, dword [eax*4 + 0x692270]
movzx eax, bl
mov ebx, dword [ebp - 8]
sub ebx, 0x10
mov dword [ebp - 8], ebx
xor ecx, dword [eax*4 + 0x691670]
sub dword [ebp - 0xc], 1
mov dword [edx + 0xc], ecx
jne 0x51d0a1
mov dword [ebp + 0xc], ecx
mov ecx, dword [ebp + 8]
mov eax, dword [ecx + 0x30]
xor eax, dword [ebp - 0x10]
mov edx, dword [ecx + 0x38]
mov dword [ebp - 0x10], eax
xor edx, edi
mov ebx, dword [ecx + 0x34]
mov ecx, dword [ecx + 0x3c]
xor ebx, esi
movzx eax, al
mov edi, dword [ebp + 0x10]
xor ecx, dword [ebp + 0xc]
mov esi, dword [ebp - 0x10]
movzx eax, byte [eax + 0x692670]
mov byte [edi], al
mov eax, ecx
shr eax, 8
movzx eax, al
movzx eax, byte [eax + 0x692670]
mov byte [edi + 1], al
mov eax, edx
shr eax, 0x10
movzx eax, al
movzx eax, byte [eax + 0x692670]
mov byte [edi + 2], al
mov eax, ebx
shr eax, 0x18
movzx eax, byte [eax + 0x692670]
mov byte [edi + 3], al
movzx eax, bl
movzx eax, byte [eax + 0x692670]
mov byte [edi + 4], al
mov eax, esi
shr eax, 8
movzx eax, al
movzx eax, byte [eax + 0x692670]
mov byte [edi + 5], al
mov eax, ecx
shr eax, 0x10
movzx eax, al
movzx eax, byte [eax + 0x692670]
mov byte [edi + 6], al
mov eax, edx
shr eax, 0x18
movzx eax, byte [eax + 0x692670]
mov byte [edi + 7], al
movzx eax, dl
shr edx, 8
movzx eax, byte [eax + 0x692670]
mov byte [edi + 8], al
mov eax, ebx
shr eax, 8
movzx eax, al
shr ebx, 0x10
movzx eax, byte [eax + 0x692670]
mov byte [edi + 9], al
mov eax, esi
shr eax, 0x10
movzx eax, al
shr esi, 0x18
movzx eax, byte [eax + 0x692670]
mov byte [edi + 0xa], al
mov eax, ecx
shr eax, 0x18
movzx eax, byte [eax + 0x692670]
mov byte [edi + 0xb], al
movzx eax, cl
mov ecx, dword [ebp + 8]
movzx eax, byte [eax + 0x692670]
mov byte [edi + 0xc], al
movzx eax, dl
movzx eax, byte [eax + 0x692670]
mov byte [edi + 0xd], al
movzx eax, bl
movzx eax, byte [eax + 0x692670]
mov byte [edi + 0xe], al
movzx eax, byte [esi + 0x692670]
mov byte [edi + 0xf], al
mov eax, dword [ecx + 0x20]
xor dword [edi], eax
mov eax, dword [ecx + 0x24]
xor dword [edi + 4], eax
mov eax, dword [ecx + 0x28]
xor dword [edi + 8], eax
mov eax, dword [ecx + 0x2c]
xor dword [edi + 0xc], eax
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret