Function at 0x458f20
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
sub esp, 8
push ebx
mov ebx, dword [ebp + 8]
mov eax, ecx
push esi
mov dword [ebp - 4], eax
add eax, 0xb0
mov dword [ebp - 8], eax
mov esi, eax
push edi
mov edi, edx
test ebx, ebx
je 0x458f75
dec ebx
shr ebx, 4
inc ebx
mov eax, edi
sub esi, edi
mov edx, 0x10
nop
mov cl, byte [esi + eax]
lea eax, [eax + 1]
xor byte [eax - 1], cl
sub edx, 1
jne 0x458f50
mov edx, dword [ebp - 4]
mov ecx, edi
call fcn.00458bb0
mov esi, edi
add edi, 0x10
sub ebx, 1
jne 0x458f46
mov eax, dword [ebp - 8]
movups xmm0, xmmword [esi]
pop edi
pop esi
movups xmmword [eax], xmm0
pop ebx
mov esp, ebp
pop ebp
ret

Function at 0x458f90
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
push ecx
push ebx
mov ebx, dword [ebp + 8]
mov dword [ebp - 4], ecx
push esi
mov esi, edx
test ebx, ebx
je 0x458fdf
push edi
dec ebx
lea edi, [ecx + 0xb0]
shr ebx, 4
sub edi, esi
inc ebx
movups xmm0, xmmword [esi]
mov edx, ecx
mov ecx, esi
call fcn.00458d60
mov ecx, 0x10
mov al, byte [edi + esi]
xor byte [esi], al
inc esi
sub ecx, 1
jne 0x458fc1
mov ecx, dword [ebp - 4]
sub edi, 0x10
movups xmmword [ecx + 0xb0], xmm0
sub ebx, 1
jne 0x458fb0
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret

Function at 0x458ff0
Capabilities:
Encrypt data using rc4 ksa

Disassembly:
push ebp
mov ebp, esp
sub esp, 8
mov eax, dword [ebp + 8]
mov dword [ebp - 8], edx
mov byte [ebp - 1], 0
push ebx
mov ebx, ecx
push esi
push edi
test eax, eax
je 0x459010
cmp eax, 0x100
jbe 0x459024
push 0x54
push str.rc4.cpp
push str.key_len___0__key_len___256
call fcn.004ae0c2
add esp, 0xc
mov ecx, 0x40
mov dword [ebx + 0x200], 1
mov esi, 0x4e4f60
mov dword [ebx + 0x204], 1
mov edi, ebx
mov word [ebx + 0x208], 0
rep movsd dword es:[edi], dword [esi]
mov edi, dword [ebp + 8]
xor esi, esi
xor edx, edx
mov cl, byte [esi + ebx]
mov eax, esi
div edi
mov eax, dword [ebp - 8]
movzx eax, byte [edx + eax]
mov dl, byte [ebp - 1]
add al, cl
add dl, al
mov byte [ebp - 1], dl
movzx edx, dl
movzx eax, byte [edx + ebx]
mov byte [esi + ebx], al
inc esi
mov byte [edx + ebx], cl
cmp esi, 0x100
jb 0x459054
lea edi, [ebx + 0x100]
mov esi, ebx
mov ecx, 0x40
rep movsd dword es:[edi], dword [esi]
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret

Function at 0x4590a0
Capabilities:
Encode data using xor
Encrypt data using rc4 prga

Disassembly:
push ebp
mov ebp, esp
push ecx
push ebx
push esi
mov esi, dword [ebp + 8]
push edi
mov edi, ecx
mov ecx, dword [ebp + 0xc]
mov eax, dword [edi + 0x200]
sub edx, eax
mov bh, byte [edi + 0x208]
add ecx, eax
sub esi, eax
mov dword [ebp - 4], ecx
mov dword [ebp + 8], esi
cmp eax, ecx
jae 0x459105
sub edx, esi
mov dword [ebp + 0xc], edx
movzx esi, al
mov bl, byte [esi + edi]
add bh, bl
movzx edx, bh
movzx ecx, byte [edx + edi]
mov byte [esi + edi], cl
mov byte [edx + edi], bl
movzx ecx, byte [esi + edi]
mov edx, dword [ebp + 8]
add cl, bl
mov esi, dword [ebp + 0xc]
add edx, eax
movzx ecx, cl
inc eax
movzx ecx, byte [ecx + edi]
xor cl, byte [esi + edx]
mov byte [edx], cl
cmp eax, dword [ebp - 4]
jb 0x4590d0
mov byte [edi + 0x208], bh
mov dword [edi + 0x200], eax
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret