Function at 0x420370
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebx
mov ebx, esp
sub esp, 8
and esp, 0xfffffff8
add esp, 4
push ebp
mov ebp, dword [ebx + 4]
mov dword [esp + 4], ebp
mov ebp, esp
sub esp, 0x48
mov eax, dword [0x44300c]
xor eax, ebp
mov dword [ebp - 4], eax
push esi
push edi
mov edi, dword [ebx + 0xc]
mov esi, ecx
mov dword [ebp - 0x34], esi
cmp edi, 3
jl 0x420740
test byte [esi + 0x24], 4
mov eax, dword [esi + 0x2c]
movss xmm0, dword [eax]
movss dword [ebp - 0x28], xmm0
movss xmm0, dword [eax + 4]
movss dword [ebp - 0x14], xmm0
je 0x4206a5
mov eax, dword [ebx + 0x10]
movss xmm0, dword [esi + 0x8c]
and eax, 0xffffff
mov dword [ebp - 0x38], eax
lea eax, [edi + edi]
push eax
mov dword [ebp - 0x44], eax
lea eax, [edi*8 - 6]
add eax, edi
movss dword [ebp - 0x1c], xmm0
push eax
call fcn.0041f430
mov eax, dword [esi + 0x28]
movzx edx, ax
mov dword [ebp - 0xc], edx
lea ecx, [eax + 1]
movzx eax, dx
mov dword [ebp - 0x40], ecx
mov ecx, 2
mov dword [ebp - 0x10], ecx
mov dword [ebp - 0x18], eax
mov eax, dword [esi + 0x38]
mov word [eax], dx
lea edx, [edx + ecx*2]
mov eax, dword [esi + 0x38]
lea ecx, [edx - 2]
mov word [eax + 2], cx
mov eax, dword [esi + 0x38]
mov ecx, dword [ebp - 0x10]
inc ecx
mov dword [ebp - 0x10], ecx
mov word [eax + 4], dx
add dword [esi + 0x38], 6
mov edx, dword [ebp - 0xc]
cmp ecx, edi
jl 0x420411
mov eax, dword [ebp - 0x18]
movzx eax, ax
mov dword [ebp - 0x3c], eax
lea eax, [edi*8]
call fcn.0043ab90
movss xmm5, dword [0x440e38]
lea eax, [edi - 1]
mov esi, dword [ebx + 8]
xor edx, edx
mov dword [ebp - 0x20], eax
mov ecx, esp
shl eax, 3
xorps xmm4, xmm4
mov dword [ebp - 0x18], edx
mov dword [ebp - 8], eax
movss xmm2, dword [esi + edx*8 + 4]
lea edi, [edx*8]
movss xmm0, dword [esi + edx*8]
subss xmm0, dword [eax + esi]
subss xmm2, dword [eax + esi + 4]
mov dword [ebp - 0x24], edi
lea edi, [esi + 4]
mov dword [ebp - 0x10], edi
mov edi, dword [ebx + 0xc]
movaps xmm1, xmm0
movss dword [ebp - 0x2c], xmm0
movaps xmm3, xmm2
mulss xmm1, xmm0
mulss xmm3, xmm2
movss dword [ebp - 0x30], xmm2
addss xmm3, xmm1
comiss xmm3, xmm4
jbe 0x4204f0
movaps xmm0, xmm3
call fcn.00402480
movss xmm5, dword [0x440e38]
xorps xmm4, xmm4
movaps xmm1, xmm5
movss xmm2, dword [ebp - 0x30]
divss xmm1, xmm0
mov eax, dword [ebp - 8]
mov ecx, esp
mov edx, dword [ebp - 0x18]
movaps xmm0, xmm1
mulss xmm2, xmm1
mulss xmm0, dword [ebp - 0x2c]
xorps xmm0, xmmword [0x441010]
inc edx
movss dword [eax + ecx], xmm2
movss dword [eax + ecx + 4], xmm0
mov eax, dword [ebp - 0x24]
mov dword [ebp - 8], eax
mov dword [ebp - 0x18], edx
cmp edx, edi
jl 0x420473
movss xmm0, dword [ebp - 0x1c]
mov eax, ecx
movss xmm4, dword [0x440df8]
sub eax, esi
movss xmm6, dword [0x440da8]
movss xmm7, dword [0x440eb4]
mov esi, dword [ebp - 0x34]
mov edx, dword [ebp - 0x10]
mulss xmm0, xmm4
mov dword [ebp - 0x24], eax
lea eax, [edi - 1]
mov dword [ebp - 8], 0
movss dword [ebp - 0x1c], xmm0
mov edi, dword [ebp - 8]
movss xmm2, dword [ecx + edi*8]
mov edi, dword [ebp - 0x24]
addss xmm2, dword [ecx + eax*8]
movss xmm3, dword [edi + edx]
addss xmm3, dword [ecx + eax*8 + 4]
mulss xmm2, xmm4
mulss xmm3, xmm4
movaps xmm0, xmm2
mulss xmm0, xmm2
movaps xmm1, xmm3
mulss xmm1, xmm3
addss xmm1, xmm0
comiss xmm1, xmm6
jbe 0x4205a4
movaps xmm0, xmm5
divss xmm0, xmm1
movaps xmm1, xmm7
minss xmm1, xmm0
movaps xmm0, xmm1
mulss xmm3, xmm1
mulss xmm2, xmm0
movss xmm0, dword [edx - 4]
mov eax, dword [esi + 0x34]
movss xmm1, dword [ebp - 0x1c]
mulss xmm1, xmm2
mov ecx, dword [ebx + 0x10]
movss xmm2, dword [ebp - 0x1c]
mulss xmm2, xmm3
mov edi, dword [ebp - 0x40]
movss xmm3, dword [ebp - 0x14]
subss xmm0, xmm1
movss dword [eax], xmm0
movss xmm0, dword [edx]
mov eax, dword [esi + 0x34]
subss xmm0, xmm2
movss dword [eax + 4], xmm0
mov eax, dword [esi + 0x34]
movss xmm0, dword [ebp - 0x28]
movss dword [eax + 8], xmm0
movss dword [eax + 0xc], xmm3
mov eax, dword [esi + 0x34]
mov dword [eax + 0x10], ecx
addss xmm1, dword [edx - 4]
mov eax, dword [esi + 0x34]
mov ecx, dword [ebp - 0x38]
movss dword [eax + 0x14], xmm1
addss xmm2, dword [edx]
mov eax, dword [esi + 0x34]
movss dword [eax + 0x18], xmm2
mov eax, dword [esi + 0x34]
movss dword [eax + 0x1c], xmm0
movss dword [eax + 0x20], xmm3
mov eax, dword [esi + 0x34]
mov dword [eax + 0x24], ecx
mov eax, dword [ebp - 8]
mov ecx, dword [ebp - 0x3c]
add dword [esi + 0x34], 0x28
lea edx, [ecx + eax*2]
mov eax, dword [esi + 0x38]
mov word [eax], dx
mov eax, dword [ebp - 0x20]
lea ecx, [ecx + eax*2]
mov eax, dword [esi + 0x38]
mov word [eax + 2], cx
mov eax, dword [ebp - 0x20]
movzx ecx, di
lea ecx, [ecx + eax*2]
mov eax, dword [esi + 0x38]
mov word [eax + 4], cx
mov eax, dword [esi + 0x38]
mov word [eax + 6], cx
mov eax, dword [ebp - 8]
movzx ecx, di
lea ecx, [ecx + eax*2]
mov eax, dword [esi + 0x38]
mov word [eax + 8], cx
mov eax, dword [esi + 0x38]
mov ecx, dword [ebp - 8]
mov word [eax + 0xa], dx
mov eax, ecx
mov edx, dword [ebp - 0x10]
inc ecx
add dword [esi + 0x38], 0xc
add edx, 8
cmp ecx, dword [ebx + 0xc]
mov dword [ebp - 8], ecx
mov ecx, esp
mov dword [ebp - 0x20], eax
mov dword [ebp - 0x10], edx
jl 0x420551
mov eax, dword [ebp - 0x44]
movzx eax, ax
jmp 0x42073d
lea eax, [edi - 2]
push edi
lea eax, [eax + eax*2]
push eax
call fcn.0041f430
movss xmm0, dword [ebp - 0x28]
movss xmm1, dword [ebp - 0x14]
mov dword [ebp - 0xc], edi
mov edi, dword [ebx + 8]
mov eax, dword [esi + 0x34]
lea edi, [edi + 8]
mov ecx, dword [edi - 8]
mov edx, dword [edi - 4]
mov dword [eax], ecx
mov ecx, dword [ebx + 0x10]
mov dword [eax + 4], edx
mov eax, dword [esi + 0x34]
movss dword [eax + 8], xmm0
movss dword [eax + 0xc], xmm1
mov eax, dword [esi + 0x34]
mov dword [eax + 0x10], ecx
add dword [esi + 0x34], 0x14
sub dword [ebp - 0xc], 1
jne 0x4206c2
mov edi, dword [ebx + 0xc]
mov edx, 2
mov dword [ebp - 0x14], edx
nop
mov ecx, dword [esi + 0x38]
mov ax, word [esi + 0x28]
movzx edx, dx
mov word [ecx], ax
movzx ecx, word [esi + 0x28]
mov eax, dword [esi + 0x38]
dec cx
add cx, dx
mov word [eax + 2], cx
movzx ecx, word [esi + 0x28]
mov eax, dword [esi + 0x38]
add cx, dx
mov edx, dword [ebp - 0x14]
inc edx
mov dword [ebp - 0x14], edx
mov word [eax + 4], cx
add dword [esi + 0x38], 6
cmp edx, edi
jl 0x420700
movzx eax, di
add dword [esi + 0x28], eax
lea esp, [ebp - 0x50]
pop edi
pop esi
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.004399e4
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret 0xc