Function at 0x4ec420
Capabilities:
Encode data using xor

Disassembly:
mov eax, 0x14
call fcn.00486420
mov eax, dword [esp + 0x28]
mov ecx, dword [esp + 0x24]
mov edx, ecx
push ebx
push ebp
push esi
push edi
xor edi, edi
mov dword [esp + 0x18], 0
test eax, eax
mov dword [esp + 0x10], edi
push ecx
cmovne edx, eax
mov dword [esp + 0x20], edx
call fcn.004a1be0
mov esi, dword [esp + 0x40]
mov ebp, eax
add esp, 4
mov dword [esp + 0x38], ebp
test ebp, ebp
js 0x4ec727
cmp esi, 0xffffffff
jne 0x4ec4dd
mov esi, ebp
mov eax, dword [esp + 0x28]
push dword [eax + 0x14]
call fcn.004971e0
push dword [esp + 0x2c]
lea ebx, [eax - 1]
and ebx, 7
mov dword [esp + 0x28], ebx
call fcn.00489f90
add esp, 8
mov ecx, eax
test ebx, ebx
mov dword [esp + 0x14], ecx
mov ebx, dword [esp + 0x2c]
jne 0x4ec4aa
mov byte [ebx], 0
inc ebx
dec ecx
mov dword [esp + 0x14], ecx
lea eax, [ebp + 2]
cmp ecx, eax
jge 0x4ec51d
call fcn.00493aa0
push str.RSA_padding_add_PKCS1_PSS_mgf1
push 0xc1
push str.crypto_rsa_rsa_pss.c
call fcn.00493ba0
push 0
push 0x6e
push 4
call fcn.00493c50
add esp, 0x18
jmp 0x4ec727
cmp esi, 0xfffffffe
jne 0x4ec4e9
mov esi, 0xfffffffd
jmp 0x4ec471
cmp esi, 0xfffffffd
jge 0x4ec471
call fcn.00493aa0
push str.RSA_padding_add_PKCS1_PSS_mgf1
push 0xb6
push str.crypto_rsa_rsa_pss.c
call fcn.00493ba0
push 0
push 0x88
push 4
call fcn.00493c50
add esp, 0x18
jmp 0x4ec727
mov ebp, ecx
sub ebp, dword [esp + 0x38]
lea eax, [ebp - 2]
cmp esi, 0xfffffffd
jne 0x4ec578
mov esi, eax
test esi, esi
jle 0x4ec5ab
push 0xcb
push str.crypto_rsa_rsa_pss.c
push esi
call fcn.00493580
mov edi, eax
add esp, 0xc
test edi, edi
jne 0x4ec590
call fcn.00493aa0
push str.RSA_padding_add_PKCS1_PSS_mgf1
push 0xcd
push str.crypto_rsa_rsa_pss.c
call fcn.00493ba0
push edi
push 0xc0100
push 4
call fcn.00493c50
add esp, 0x18
jmp 0x4ec727
cmp esi, eax
jle 0x4ec52d
call fcn.00493aa0
push str.RSA_padding_add_PKCS1_PSS_mgf1
push 0xc7
jmp 0x4ec4c0
mov eax, dword [esp + 0x28]
push 0
push esi
push edi
push dword [eax + 4]
call fcn.004f4c50
add esp, 0x10
test eax, eax
jle 0x4ec727
call fcn.0048bc80
mov dword [esp + 0x10], eax
test eax, eax
je 0x4ec727
push 0
push dword [esp + 0x38]
push eax
call fcn.0048b780
add esp, 0xc
test eax, eax
je 0x4ec727
push 8
push 0x60fc74
push dword [esp + 0x18]
call fcn.0048b7c0
add esp, 0xc
test eax, eax
je 0x4ec727
push dword [esp + 0x38]
push dword [esp + 0x34]
push dword [esp + 0x18]
call fcn.0048b7c0
add esp, 0xc
test eax, eax
je 0x4ec727
test esi, esi
je 0x4ec624
push esi
push edi
push dword [esp + 0x18]
call fcn.0048b7c0
add esp, 0xc
test eax, eax
je 0x4ec727
lea eax, [ebp - 1]
push 0
add eax, ebx
push eax
push dword [esp + 0x18]
call fcn.0048b650
add esp, 0xc
test eax, eax
je 0x4ec727
push dword [esp + 0x1c]
lea ecx, [ebp - 1]
push dword [esp + 0x3c]
lea eax, [ecx + ebx]
push eax
push ecx
push ebx
call fcn.004ca370
add esp, 0x14
test eax, eax
jne 0x4ec727
sub ebp, esi
xor byte [ebx + ebp - 2], 1
lea ecx, [ebx + ebp]
lea eax, [ecx - 2]
dec ecx
test esi, esi
jle 0x4ec6fe
xor edx, edx
cmp esi, 0x40
jb 0x4ec6eb
lea ebp, [eax + esi]
lea eax, [esi - 1]
add eax, edi
cmp ecx, eax
ja 0x4ec68e
cmp ebp, edi
jae 0x4ec6eb
mov eax, esi
and eax, 0x8000003f
jns 0x4ec69c
dec eax
or eax, 0xffffffc0
inc eax
mov ebp, esi
sub ebp, eax
movups xmm0, xmmword [ecx]
movups xmm1, xmmword [edi + edx]
pxor xmm1, xmm0
movups xmmword [ecx], xmm1
movups xmm0, xmmword [ecx + 0x10]
movups xmm1, xmmword [edi + edx + 0x10]
pxor xmm1, xmm0
movups xmmword [ecx + 0x10], xmm1
movups xmm0, xmmword [ecx + 0x20]
movups xmm1, xmmword [edi + edx + 0x20]
pxor xmm1, xmm0
movups xmmword [ecx + 0x20], xmm1
movups xmm0, xmmword [ecx + 0x30]
movups xmm1, xmmword [edi + edx + 0x30]
add edx, 0x40
pxor xmm1, xmm0
movups xmmword [ecx + 0x30], xmm1
add ecx, 0x40
cmp edx, ebp
jl 0x4ec6a0
cmp edx, esi
jge 0x4ec6fe
nop
mov al, byte [edx + edi]
lea ecx, [ecx + 1]
xor byte [ecx - 1], al
inc edx
cmp edx, esi
jl 0x4ec6f0
mov eax, dword [esp + 0x20]
test eax, eax
je 0x4ec716
mov ecx, 8
sub ecx, eax
mov eax, 0xff
sar eax, cl
and byte [ebx], al
mov eax, dword [esp + 0x14]
mov dword [esp + 0x18], 1
mov byte [eax + ebx - 1], 0xbc
push dword [esp + 0x10]
call fcn.0048bbf0
push 0xfc
push str.crypto_rsa_rsa_pss.c
push esi
push edi
call fcn.00493660
mov eax, dword [esp + 0x2c]
add esp, 0x14
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x14
ret