Function at 0x51f580
Capabilities:
Encode data using xor

Disassembly:
mov eax, 0x2c
call fcn.0053f090
mov eax, dword [esp + 0x40]
mov ecx, dword [esp + 0x3c]
push ebx
push ebp
xor ebp, ebp
xor ebx, ebx
test eax, eax
push ecx
cmove eax, ecx
mov dword [esp + 0x4c], eax
call fcn.004d9030
add esp, 4
mov dword [esp + 0xc], eax
test eax, eax
js 0x51f86c
push edi
mov edi, dword [esp + 0x50]
cmp edi, 0xffffffff
jne 0x51f5fe
mov edi, eax
push esi
mov esi, dword [esp + 0x40]
push dword [esi + 0x10]
call fcn.004d5700
dec eax
and eax, 7
push esi
mov dword [esp + 0x24], eax
call fcn.004ce920
add esp, 8
mov edx, eax
mov dword [esp + 0x20], edx
cmp dword [esp + 0x1c], ebx
jne 0x51f62e
mov ecx, dword [esp + 0x44]
mov byte [ecx], bl
inc ecx
dec edx
mov dword [esp + 0x10], ecx
mov dword [esp + 0x20], edx
jmp 0x51f636
cmp edi, 0xfffffffe
jne 0x51f605
jmp 0x51f5c2
jge 0x51f5c2
push 0xdb
push str..crypto_rsa_rsa_pss.c
push 0x88
push 0x94
push 4
call fcn.004c75e0
add esp, 0x14
mov eax, ebp
pop edi
pop ebp
pop ebx
add esp, 0x2c
ret
mov eax, dword [esp + 0x44]
mov dword [esp + 0x10], eax
mov ecx, dword [esp + 0x14]
lea eax, [ecx + 2]
cmp edx, eax
jge 0x51f666
push 0xe7
push str..crypto_rsa_rsa_pss.c
push 0x6e
push 0x94
push 4
call fcn.004c75e0
add esp, 0x14
mov eax, ebp
pop esi
pop edi
pop ebp
pop ebx
add esp, 0x2c
ret
mov esi, edx
sub esi, ecx
cmp edi, 0xfffffffe
jne 0x51f6b4
lea edi, [esi - 2]
test edi, edi
jle 0x51f6db
push 0xf2
push str..crypto_rsa_rsa_pss.c
push edi
call fcn.004cd800
mov ebx, eax
add esp, 0xc
test ebx, ebx
jne 0x51f6c9
push 0xf5
push str..crypto_rsa_rsa_pss.c
push 0x41
push 0x94
push 4
call fcn.004c75e0
add esp, 0x14
mov eax, ebp
pop esi
pop edi
pop ebp
pop ebx
add esp, 0x2c
ret
lea eax, [esi - 2]
cmp edi, eax
jle 0x51f672
push 0xee
push str..crypto_rsa_rsa_pss.c
push 0x6e
jmp 0x51f69b
push edi
push ebx
call fcn.004d4830
add esp, 8
test eax, eax
jle 0x51f85d
mov eax, dword [esp + 0x10]
lea ecx, [esi - 1]
add eax, ecx
mov dword [esp + 0x18], eax
lea eax, [esp + 0x24]
push eax
call fcn.004d04a0
push 0
push dword [esp + 0x54]
lea eax, [esp + 0x30]
push eax
call fcn.004d0080
add esp, 0x10
test eax, eax
je 0x51f85d
push 8
lea eax, [esp + 0x28]
push 0x5c0438
push eax
call fcn.004d0230
add esp, 0xc
test eax, eax
je 0x51f85d
push dword [esp + 0x14]
lea eax, [esp + 0x28]
push dword [esp + 0x4c]
push eax
call fcn.004d0230
add esp, 0xc
test eax, eax
je 0x51f85d
test edi, edi
je 0x51f761
push edi
lea eax, [esp + 0x28]
push ebx
push eax
call fcn.004d0230
add esp, 0xc
test eax, eax
je 0x51f85d
push 0
push dword [esp + 0x1c]
lea eax, [esp + 0x2c]
push eax
call fcn.004cffe0
add esp, 0xc
test eax, eax
je 0x51f85d
lea eax, [esp + 0x24]
push eax
call fcn.004d0240
push dword [esp + 0x54]
lea eax, [esi - 1]
push dword [esp + 0x1c]
push dword [esp + 0x24]
push eax
push dword [esp + 0x24]
call fcn.0051af10
add esp, 0x18
test eax, eax
jne 0x51f85d
mov edx, dword [esp + 0x10]
sub esi, edi
xor byte [esi + edx - 2], 1
lea ecx, [esi + edx]
dec ecx
test edi, edi
jle 0x51f837
xor edx, edx
cmp edi, 0x20
jb 0x51f821
lea eax, [ebx - 1]
lea esi, [ecx - 1]
add eax, edi
add esi, edi
cmp ecx, eax
ja 0x51f7d6
cmp esi, ebx
jae 0x51f821
mov eax, edi
and eax, 0x8000001f
jns 0x51f7e4
dec eax
or eax, 0xffffffe0
inc eax
mov esi, edi
sub esi, eax
lea eax, [ebx + 0x10]
jmp 0x51f7f0
movdqu xmm0, xmmword [ecx]
add edx, 0x20
lea eax, [eax + 0x20]
movdqu xmm1, xmmword [eax - 0x30]
pxor xmm1, xmm0
movdqu xmmword [ecx], xmm1
movdqu xmm1, xmmword [eax - 0x20]
movdqu xmm0, xmmword [ecx + 0x10]
pxor xmm1, xmm0
movdqu xmmword [ecx + 0x10], xmm1
add ecx, 0x20
cmp edx, esi
jl 0x51f7f0
cmp edx, edi
jge 0x51f833
mov al, byte [edx + ebx]
lea ecx, [ecx + 1]
xor byte [ecx - 1], al
inc edx
cmp edx, edi
jl 0x51f825
mov edx, dword [esp + 0x10]
mov eax, dword [esp + 0x1c]
test eax, eax
je 0x51f84f
mov ecx, 8
sub ecx, eax
mov eax, 0xff
sar eax, cl
and byte [edx], al
mov eax, dword [esp + 0x20]
mov ebp, 1
mov byte [eax + edx - 1], 0xbc
test ebx, ebx
je 0x51f86a
push ebx
call fcn.004cd780
add esp, 4
pop esi
pop edi
mov eax, ebp
pop ebp
pop ebx
add esp, 0x2c
ret