Function at 0x51fc40
Capabilities:
Encode data using xor

Disassembly:
mov eax, 0x2c
call fcn.005737b0
mov eax, dword [esp + 0x40]
mov ecx, dword [esp + 0x3c]
mov edx, ecx
push ebx
push ebp
xor ebx, ebx
xor ebp, ebp
test eax, eax
push ecx
cmovne edx, eax
mov dword [esp + 0x1c], edx
call fcn.004e07b0
add esp, 4
mov dword [esp + 8], eax
test eax, eax
js 0x51ff27
push edi
mov edi, dword [esp + 0x50]
cmp edi, 0xffffffff
jne 0x51fcc0
mov edi, eax
push esi
mov esi, dword [esp + 0x40]
push dword [esi + 0x10]
call fcn.004cbfd0
dec eax
and eax, 7
push esi
mov dword [esp + 0x20], eax
call fcn.004d0680
add esp, 8
mov edx, eax
mov dword [esp + 0x1c], edx
cmp dword [esp + 0x18], ebx
jne 0x51fcf0
mov ecx, dword [esp + 0x44]
mov byte [ecx], bl
inc ecx
dec edx
mov dword [esp + 0x50], ecx
mov dword [esp + 0x1c], edx
jmp 0x51fcf8
cmp edi, 0xfffffffe
jne 0x51fcc7
jmp 0x51fc84
jge 0x51fc84
push 0xdb
push str..crypto_rsa_rsa_pss.c
push 0x88
push 0x94
push 4
call fcn.004d5e80
add esp, 0x14
mov eax, ebx
pop edi
pop ebp
pop ebx
add esp, 0x2c
ret
mov eax, dword [esp + 0x44]
mov dword [esp + 0x50], eax
mov ecx, dword [esp + 0x10]
lea eax, [ecx + 2]
cmp edx, eax
jge 0x51fd28
push 0xe7
push str..crypto_rsa_rsa_pss.c
push 0x6e
push 0x94
push 4
call fcn.004d5e80
add esp, 0x14
mov eax, ebx
pop esi
pop edi
pop ebp
pop ebx
add esp, 0x2c
ret
mov esi, edx
sub esi, ecx
cmp edi, 0xfffffffe
jne 0x51fd76
lea edi, [esi - 2]
test edi, edi
jle 0x51fd9d
push 0xf2
push str..crypto_rsa_rsa_pss.c
push edi
call fcn.004c90b0
mov ebp, eax
add esp, 0xc
test ebp, ebp
jne 0x51fd8b
push 0xf5
push str..crypto_rsa_rsa_pss.c
push 0x41
push 0x94
push 4
call fcn.004d5e80
add esp, 0x14
mov eax, ebx
pop esi
pop edi
pop ebp
pop ebx
add esp, 0x2c
ret
lea eax, [esi - 2]
cmp edi, eax
jle 0x51fd34
push 0xee
push str..crypto_rsa_rsa_pss.c
push 0x6e
jmp 0x51fd5d
push edi
push ebp
call fcn.004d3210
add esp, 8
test eax, eax
jle 0x51ff18
mov eax, dword [esp + 0x50]
lea ecx, [esi - 1]
add eax, ecx
mov dword [esp + 0x14], eax
lea eax, [esp + 0x24]
push eax
call fcn.004cf870
push 0
push dword [esp + 0x54]
lea eax, [esp + 0x30]
push eax
call fcn.004cf450
add esp, 0x10
test eax, eax
je 0x51ff18
push 8
lea eax, [esp + 0x28]
push 0x5f72f4
push eax
call fcn.004cf600
add esp, 0xc
test eax, eax
je 0x51ff18
push dword [esp + 0x10]
lea eax, [esp + 0x28]
push dword [esp + 0x4c]
push eax
call fcn.004cf600
add esp, 0xc
test eax, eax
je 0x51ff18
test edi, edi
je 0x51fe23
push edi
lea eax, [esp + 0x28]
push ebp
push eax
call fcn.004cf600
add esp, 0xc
test eax, eax
je 0x51ff18
push 0
push dword [esp + 0x18]
lea eax, [esp + 0x2c]
push eax
call fcn.004cf3b0
add esp, 0xc
test eax, eax
je 0x51ff18
lea eax, [esp + 0x24]
push eax
call fcn.004cf610
push dword [esp + 0x24]
lea eax, [esi - 1]
push dword [esp + 0x18]
push dword [esp + 0x20]
push eax
push dword [esp + 0x64]
call fcn.0050d3f0
add esp, 0x18
test eax, eax
jne 0x51ff18
mov edx, dword [esp + 0x50]
sub esi, edi
xor byte [esi + edx - 2], 1
lea ecx, [esi + edx]
dec ecx
test edi, edi
jle 0x51fef2
xor edx, edx
cmp edi, 0x20
jb 0x51fed9
lea eax, [ebp - 1]
lea esi, [ecx - 1]
add eax, edi
add esi, edi
cmp ecx, eax
ja 0x51fe98
cmp esi, ebp
jae 0x51fed9
mov eax, edi
and eax, 0x8000001f
jns 0x51fea6
dec eax
or eax, 0xffffffe0
inc eax
mov esi, edi
sub esi, eax
nop word [eax + eax]
movups xmm0, xmmword [ecx]
movups xmm1, xmmword [edx + ebp]
pxor xmm1, xmm0
movups xmmword [ecx], xmm1
movups xmm1, xmmword [edx + ebp + 0x10]
add edx, 0x20
movups xmm0, xmmword [ecx + 0x10]
pxor xmm1, xmm0
movups xmmword [ecx + 0x10], xmm1
add ecx, 0x20
cmp edx, esi
jl 0x51feb0
cmp edx, edi
jge 0x51feee
nop dword [eax]
mov al, byte [edx + ebp]
lea ecx, [ecx + 1]
xor byte [ecx - 1], al
inc edx
cmp edx, edi
jl 0x51fee0
mov edx, dword [esp + 0x50]
mov eax, dword [esp + 0x18]
test eax, eax
je 0x51ff0a
mov ecx, 8
sub ecx, eax
mov eax, 0xff
sar eax, cl
and byte [edx], al
mov eax, dword [esp + 0x1c]
mov ebx, 1
mov byte [eax + edx - 1], 0xbc
test ebp, ebp
je 0x51ff25
push ebp
call fcn.004c9030
add esp, 4
pop esi
pop edi
pop ebp
mov eax, ebx
pop ebx
add esp, 0x2c
ret