Function at 0x4bf3f0
Capabilities:
Encode data using xor

Disassembly:
mov eax, 0x18
call fcn.00581890
mov ecx, dword [esp + 0x28]
or eax, 0xffffffff
push ebx
push ebp
push esi
push edi
mov dword [esp + 0x14], eax
xor edi, edi
mov eax, dword [esp + 0x3c]
mov edx, ecx
test eax, eax
mov dword [esp + 0x20], 0
push ecx
cmovne edx, eax
mov dword [esp + 0x14], edi
mov dword [esp + 0x28], edx
call fcn.0046a630
mov esi, dword [esp + 0x44]
mov ebp, eax
add esp, 4
test ebp, ebp
js 0x4bf6b9
cmp esi, 0xffffffff
jne 0x4bf446
mov esi, ebp
jmp 0x4bf459
cmp esi, 0xfffffffe
je 0x4bf454
cmp esi, 0xfffffffc
jne 0x4bf495
mov dword [esp + 0x14], ebp
mov esi, 0xfffffffd
mov ebx, dword [esp + 0x2c]
push dword [ebx + 0x14]
call fcn.00474cc0
dec eax
and eax, 7
push ebx
mov dword [esp + 0x20], eax
call fcn.004bd0d0
add esp, 8
mov edx, eax
mov dword [esp + 0x1c], edx
cmp dword [esp + 0x18], edi
jne 0x4bf4c6
mov ecx, dword [esp + 0x30]
mov byte [ecx], 0
inc ecx
dec edx
mov dword [esp + 0x3c], ecx
mov dword [esp + 0x1c], edx
jmp 0x4bf4ce
jge 0x4bf459
call fcn.0046aff0
push str.RSA_padding_add_PKCS1_PSS_mgf1
push 0xc4
push str.crypto_rsa_rsa_pss.c
call fcn.0046b040
push 0
push 0x88
push 4
call fcn.0046b070
add esp, 0x18
jmp 0x4bf6b9
mov eax, dword [esp + 0x30]
mov dword [esp + 0x3c], eax
lea eax, [ebp + 2]
cmp edx, eax
jge 0x4bf501
call fcn.0046aff0
push str.RSA_padding_add_PKCS1_PSS_mgf1
push 0xcf
push str.crypto_rsa_rsa_pss.c
call fcn.0046b040
push 0
push 0x6e
push 4
call fcn.0046b070
add esp, 0x18
jmp 0x4bf6b9
mov ebx, edx
sub ebx, ebp
cmp esi, 0xfffffffd
jne 0x4bf6e2
mov eax, dword [esp + 0x14]
lea esi, [ebx - 2]
test eax, eax
js 0x4bf51f
cmp esi, eax
jle 0x4bf51f
mov esi, eax
test esi, esi
jle 0x4bf55b
push 0xdb
push str.crypto_rsa_rsa_pss.c
push esi
call fcn.00465c60
mov edi, eax
add esp, 0xc
test edi, edi
je 0x4bf6b9
mov eax, dword [esp + 0x2c]
push 0
push esi
push edi
push dword [eax + 4]
call fcn.0045e210
add esp, 0x10
test eax, eax
jle 0x4bf6b9
mov eax, dword [esp + 0x3c]
lea ecx, [ebx - 1]
add eax, ecx
mov dword [esp + 0x14], eax
call fcn.004867a0
mov dword [esp + 0x10], eax
test eax, eax
je 0x4bf6b9
push 0
push dword [esp + 0x3c]
push eax
call fcn.00486290
add esp, 0xc
test eax, eax
je 0x4bf6b9
push 8
push 0x5d8bf4
push dword [esp + 0x18]
call fcn.004862d0
add esp, 0xc
test eax, eax
je 0x4bf6b9
push ebp
push dword [esp + 0x38]
push dword [esp + 0x18]
call fcn.004862d0
add esp, 0xc
test eax, eax
je 0x4bf6b9
test esi, esi
je 0x4bf5de
push esi
push edi
push dword [esp + 0x18]
call fcn.004862d0
add esp, 0xc
test eax, eax
je 0x4bf6b9
push 0
push dword [esp + 0x18]
push dword [esp + 0x18]
call fcn.004860a0
add esp, 0xc
test eax, eax
je 0x4bf6b9
push dword [esp + 0x24]
lea eax, [ebx - 1]
push ebp
push dword [esp + 0x1c]
mov ebp, dword [esp + 0x48]
push eax
push ebp
call fcn.004be660
add esp, 0x14
test eax, eax
jne 0x4bf6b9
sub ebx, esi
xor byte [ebx + ebp - 2], 1
lea ecx, [ebx + ebp]
dec ecx
test esi, esi
jle 0x4bf68f
xor edx, edx
cmp esi, 0x20
jb 0x4bf67d
lea eax, [edi - 1]
lea ebx, [ecx - 1]
add eax, esi
add ebx, esi
cmp ecx, eax
ja 0x4bf642
cmp ebx, edi
jae 0x4bf67d
mov eax, esi
and eax, 0x8000001f
jns 0x4bf650
dec eax
or eax, 0xffffffe0
inc eax
mov ebx, esi
sub ebx, eax
movups xmm0, xmmword [ecx]
movups xmm1, xmmword [edi + edx]
pxor xmm1, xmm0
movups xmmword [ecx], xmm1
movups xmm1, xmmword [edi + edx + 0x10]
add edx, 0x20
movups xmm0, xmmword [ecx + 0x10]
pxor xmm1, xmm0
movups xmmword [ecx + 0x10], xmm1
add ecx, 0x20
cmp edx, ebx
jl 0x4bf654
cmp edx, esi
jge 0x4bf68f
mov al, byte [edx + edi]
lea ecx, [ecx + 1]
xor byte [ecx - 1], al
inc edx
cmp edx, esi
jl 0x4bf681
mov eax, dword [esp + 0x18]
test eax, eax
je 0x4bf6a8
mov ecx, 8
sub ecx, eax
mov eax, 0xff
sar eax, cl
and byte [ebp], al
mov eax, dword [esp + 0x1c]
mov dword [esp + 0x20], 1
mov byte [eax + ebp - 1], 0xbc
push dword [esp + 0x10]
call fcn.00486710
push 0x10a
push str.crypto_rsa_rsa_pss.c
push esi
push edi
call fcn.00465d70
mov eax, dword [esp + 0x34]
add esp, 0x14
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x18
ret
lea eax, [ebx - 2]
cmp esi, eax
jle 0x4bf51f
call fcn.0046aff0
push str.RSA_padding_add_PKCS1_PSS_mgf1
push 0xd7
jmp 0x4bf4e4