Function at 0x10021bc0
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, 0x40
mov eax, dword [0x1003f040]
xor eax, ebp
mov dword [ebp - 4], eax
push esi
mov esi, ecx
mov ecx, dword [ebx + 0xc]
mov dword [ebp - 0x2c], esi
push edi
mov edi, dword [ebx + 8]
cmp ecx, 3
jl 0x10021fa3
test byte [esi + 0x24], 2
mov eax, dword [esi + 0x28]
movss xmm0, dword [eax]
movss dword [ebp - 0x28], xmm0
movss xmm0, dword [eax + 4]
movss dword [ebp - 0x1c], xmm0
je 0x10021f11
mov eax, dword [ebx + 0x10]
and eax, 0xffffff
mov dword [ebp - 0x34], eax
lea eax, [ecx + ecx]
push eax
mov dword [ebp - 0x3c], eax
lea eax, [ecx*8 - 6]
add eax, ecx
mov ecx, esi
push eax
call fcn.10020e50
mov eax, dword [esi + 0x30]
mov edi, dword [ebx + 0xc]
movzx edx, ax
mov dword [ebp - 0x24], eax
lea ecx, [eax + 1]
mov dword [ebp - 8], edx
mov dword [ebp - 0x38], ecx
mov ecx, 2
mov dword [ebp - 0x14], ecx
nop dword [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 - 0x14]
inc ecx
mov dword [ebp - 0x14], ecx
mov word [eax + 4], dx
add dword [esi + 0x38], 6
mov edx, dword [ebp - 8]
cmp ecx, edi
jl 0x10021c60
lea eax, [edi*8]
call fcn.10034d00
lea eax, [edi - 1]
xorps xmm4, xmm4
mov edi, dword [ebx + 8]
lea ecx, [eax*8]
mov dword [ebp - 0x18], eax
xor esi, esi
mov eax, dword [ebx + 0xc]
mov dword [ebp - 0xc], ecx
movss xmm2, dword [edi + esi*8]
lea edx, [esi*8]
movss xmm1, dword [edi + esi*8 + 4]
subss xmm2, dword [ecx + edi]
subss xmm1, dword [ecx + edi + 4]
mov dword [ebp - 0x20], edx
mov edx, esp
movaps xmm0, xmm2
movss dword [ebp - 8], xmm2
movaps xmm3, xmm1
mulss xmm0, xmm2
mulss xmm3, xmm1
movss dword [ebp - 0x10], xmm1
addss xmm3, xmm0
comiss xmm3, xmm4
jbe 0x10021d39
cvtps2pd xmm0, xmm3
xorps xmm1, xmm1
ucomisd xmm1, xmm0
ja 0x10021d08
sqrtsd xmm0, xmm0
jmp 0x10021d0d
call sub.api_ms_win_crt_math_l1_1_0.dll__libm_sse2_sqrt_precise
movss xmm1, dword [0x1003b4b8]
xorps xmm4, xmm4
cvtsd2ss xmm0, xmm0
mov edx, esp
mov eax, dword [ebx + 0xc]
mov ecx, dword [ebp - 0xc]
movss xmm2, dword [ebp - 8]
divss xmm1, xmm0
movaps xmm0, xmm1
mulss xmm1, dword [ebp - 0x10]
mulss xmm2, xmm0
xorps xmm2, xmmword [0x1003b9b0]
inc esi
movss dword [ecx + edx], xmm1
movss dword [ecx + edx + 4], xmm2
mov ecx, dword [ebp - 0x20]
mov dword [ebp - 0xc], ecx
cmp esi, eax
jl 0x10021cb3
mov eax, dword [ebp - 0x24]
xor ecx, ecx
movss xmm3, dword [0x1003b48c]
movss xmm4, dword [ebp - 0x1c]
movzx eax, ax
mov dword [ebp - 8], eax
lea eax, [edi + 4]
mov dword [ebp - 0xc], eax
mov eax, edx
sub eax, edi
mov dword [ebp - 0x10], ecx
mov dword [ebp - 0x24], eax
mov eax, dword [ebp - 0x18]
mov esi, dword [ebp - 0x24]
mov edi, dword [ebp - 0xc]
movss xmm1, dword [edx + ecx*8]
addss xmm1, dword [edx + eax*8]
movss xmm2, dword [edi + esi]
addss xmm2, dword [edx + eax*8 + 4]
mov esi, dword [ebp - 0x2c]
mulss xmm1, xmm3
mulss xmm2, xmm3
movaps xmm0, xmm1
movss dword [ebp - 0x20], xmm1
mulss xmm0, xmm1
movaps xmm3, xmm2
movss dword [ebp - 0x30], xmm2
mulss xmm3, xmm2
addss xmm3, xmm0
comiss xmm3, dword [0x1003b44c]
jbe 0x10021e1c
cvtps2pd xmm0, xmm3
xorps xmm1, xmm1
ucomisd xmm1, xmm0
ja 0x10021de2
sqrtsd xmm0, xmm0
jmp 0x10021de7
call sub.api_ms_win_crt_math_l1_1_0.dll__libm_sse2_sqrt_precise
movss xmm1, dword [0x1003b4b8]
cvtsd2ss xmm0, xmm0
mov ecx, dword [ebp - 0x10]
movss xmm2, dword [0x1003b538]
divss xmm1, xmm0
movss xmm4, dword [ebp - 0x1c]
minss xmm2, xmm1
movss xmm1, dword [ebp - 0x20]
movaps xmm0, xmm2
mulss xmm2, dword [ebp - 0x30]
mulss xmm1, xmm0
mov eax, dword [esi + 0x34]
mov edx, dword [ebp - 0xc]
movss xmm3, dword [0x1003b48c]
mulss xmm1, xmm3
mov edi, dword [ebx + 0x10]
movss xmm0, dword [edx - 4]
mulss xmm2, xmm3
add dword [ebp - 0xc], 8
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], xmm4
mov eax, dword [esi + 0x34]
mov dword [eax + 0x10], edi
addss xmm1, dword [edx - 4]
mov eax, dword [esi + 0x34]
mov edi, dword [ebp - 0x38]
movss dword [eax + 0x14], xmm1
addss xmm2, dword [edx]
mov eax, dword [esi + 0x34]
mov edx, dword [ebp - 0x34]
movss dword [eax + 0x18], xmm2
mov eax, dword [esi + 0x34]
movss dword [eax + 0x1c], xmm0
movss dword [eax + 0x20], xmm4
mov eax, dword [esi + 0x34]
mov dword [eax + 0x24], edx
mov eax, dword [ebp - 8]
add dword [esi + 0x34], 0x28
lea edx, [eax + ecx*2]
mov eax, dword [esi + 0x38]
mov ecx, dword [ebp - 8]
mov word [eax], dx
mov eax, dword [ebp - 0x18]
lea ecx, [ecx + eax*2]
mov eax, dword [esi + 0x38]
mov word [eax + 2], cx
mov eax, dword [ebp - 0x18]
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 - 0x10]
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 - 0x10]
mov word [eax + 0xa], dx
mov eax, ecx
add dword [esi + 0x38], 0xc
inc ecx
mov edx, esp
mov dword [ebp - 0x18], eax
mov dword [ebp - 0x10], ecx
cmp ecx, dword [ebx + 0xc]
jl 0x10021d85
mov eax, dword [ebp - 0x3c]
jmp 0x10021f9d
push ecx
add ecx, 0xfffffffe
lea eax, [ecx + ecx*2]
mov ecx, esi
push eax
call fcn.10020e50
mov eax, dword [ebx + 0xc]
movss xmm0, dword [ebp - 0x28]
movss xmm1, dword [ebp - 0x1c]
mov dword [ebp - 8], eax
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 - 8], 1
jne 0x10021f30
mov edi, 2
mov ecx, dword [esi + 0x38]
mov ax, word [esi + 0x30]
movzx edx, di
inc edi
mov word [ecx], ax
movzx ecx, word [esi + 0x30]
mov eax, dword [esi + 0x38]
dec cx
add cx, dx
mov word [eax + 2], cx
mov eax, dword [esi + 0x38]
movzx ecx, word [esi + 0x30]
add cx, dx
mov word [eax + 4], cx
add dword [esi + 0x38], 6
mov eax, dword [ebx + 0xc]
cmp edi, eax
jl 0x10021f66
movzx eax, ax
add dword [esi + 0x30], eax
lea esp, [ebp - 0x48]
pop edi
pop esi
mov ecx, dword [ebp - 4]
xor ecx, ebp
call fcn.10033a90
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret 0xc