Function at 0x4ef530
Capabilities:
Encode data using xor

Disassembly:
push ebx
push ebp
mov ebp, dword [esp + 0x10]
push esi
push edi
mov edi, dword [esp + 0x1c]
cmp ebp, edi
jne 0x4ef557
push 0x52d
push str..crypto_bn_bn_gf2m.c
push str.a___b
call fcn.004f457a
add esp, 0xc
mov eax, dword [esp + 0x14]
lea ebx, [eax - 1]
test eax, ebx
je 0x4ef579
push 0x52e
push str..crypto_bn_bn_gf2m.c
push str._condition___condition___1____0
call fcn.004f457a
add esp, 0xc
mov ecx, dword [ebp + 4]
mov eax, dword [edi + 4]
xor eax, ecx
shr ebx, 0x1f
dec ebx
and eax, ebx
xor ecx, eax
mov dword [ebp + 4], ecx
xor dword [edi + 4], eax
mov eax, dword [esp + 0x20]
lea ecx, [eax - 1]
cmp ecx, 9
ja case.default.0x4ef59b
jmp dword [ecx*4 + 0x4ef6d8]
mov ecx, 0xa
mov dword [esp + 0x18], ecx
cmp eax, ecx
jle case.0x4ef59b.10
nop
mov eax, dword [ebp]
mov esi, dword [esp + 0x18]
lea edx, [eax + ecx*4]
mov eax, dword [edi]
mov ecx, dword [edx]
mov esi, dword [eax + esi*4]
xor esi, ecx
and esi, ebx
xor ecx, esi
mov dword [edx], ecx
mov ecx, dword [esp + 0x18]
mov eax, dword [edi]
xor dword [eax + ecx*4], esi
inc ecx
mov dword [esp + 0x18], ecx
cmp ecx, dword [esp + 0x20]
jl 0x4ef5b0
mov eax, dword [edi]
mov esi, dword [ebp]
mov edx, dword [eax + 0x24]
mov ecx, dword [esi + 0x24]
xor edx, ecx
and edx, ebx
xor ecx, edx
mov dword [esi + 0x24], ecx
mov eax, dword [edi]
xor dword [eax + 0x24], edx
mov eax, dword [edi]
mov esi, dword [ebp]
mov edx, dword [eax + 0x20]
mov ecx, dword [esi + 0x20]
xor edx, ecx
and edx, ebx
xor ecx, edx
mov dword [esi + 0x20], ecx
mov eax, dword [edi]
xor dword [eax + 0x20], edx
mov eax, dword [edi]
mov esi, dword [ebp]
mov edx, dword [eax + 0x1c]
mov ecx, dword [esi + 0x1c]
xor edx, ecx
and edx, ebx
xor ecx, edx
mov dword [esi + 0x1c], ecx
mov eax, dword [edi]
xor dword [eax + 0x1c], edx
mov eax, dword [edi]
mov esi, dword [ebp]
mov edx, dword [eax + 0x18]
mov ecx, dword [esi + 0x18]
xor edx, ecx
and edx, ebx
xor ecx, edx
mov dword [esi + 0x18], ecx
mov eax, dword [edi]
xor dword [eax + 0x18], edx
mov eax, dword [edi]
mov esi, dword [ebp]
mov edx, dword [eax + 0x14]
mov ecx, dword [esi + 0x14]
xor edx, ecx
and edx, ebx
xor ecx, edx
mov dword [esi + 0x14], ecx
mov eax, dword [edi]
xor dword [eax + 0x14], edx
mov eax, dword [edi]
mov esi, dword [ebp]
mov edx, dword [eax + 0x10]
mov ecx, dword [esi + 0x10]
xor edx, ecx
and edx, ebx
xor ecx, edx
mov dword [esi + 0x10], ecx
mov eax, dword [edi]
xor dword [eax + 0x10], edx
mov eax, dword [edi]
mov esi, dword [ebp]
mov edx, dword [eax + 0xc]
mov ecx, dword [esi + 0xc]
xor edx, ecx
and edx, ebx
xor ecx, edx
mov dword [esi + 0xc], ecx
mov eax, dword [edi]
xor dword [eax + 0xc], edx
mov eax, dword [edi]
mov esi, dword [ebp]
mov edx, dword [eax + 8]
mov ecx, dword [esi + 8]
xor edx, ecx
and edx, ebx
xor ecx, edx
mov dword [esi + 8], ecx
mov eax, dword [edi]
xor dword [eax + 8], edx
mov eax, dword [edi]
mov esi, dword [ebp]
mov edx, dword [eax + 4]
mov ecx, dword [esi + 4]
xor edx, ecx
and edx, ebx
xor ecx, edx
mov dword [esi + 4], ecx
mov eax, dword [edi]
xor dword [eax + 4], edx
mov eax, dword [edi]
mov esi, dword [ebp]
mov ecx, dword [eax]
mov edx, dword [esi]
xor ecx, edx
and ecx, ebx
xor edx, ecx
mov dword [esi], edx
mov eax, dword [edi]
pop edi
pop esi
pop ebp
xor dword [eax], ecx
pop ebx
ret