Function at 0x51bd70
Capabilities:
Encode data using xor

Disassembly:
mov eax, 0x48
call fcn.00587620
mov eax, dword [0x65b9c4]
xor eax, esp
mov dword [esp + 0x44], eax
mov eax, dword [esp + 0x4c]
push ebx
mov ebx, dword [esp + 0x54]
mov dword [esp + 4], eax
test ebx, ebx
je 0x51c0a1
cmp dword [0x6635fc], 0
push ebp
je 0x51bdf5
lea eax, [esp + 0x10]
push eax
call fcn.004f18b0
push 0xdf
push str..crypto_randmd_rand.c
push 0x13
push 5
call fcn.004f1a90
lea eax, [esp + 0x24]
push eax
push 0x663a2c
call fcn.004f1840
neg eax
push 0xe1
push str..crypto_randmd_rand.c
sbb ebp, ebp
push 0x13
inc ebp
push 6
mov dword [esp + 0x38], ebp
call fcn.004f1a90
add esp, 0x2c
test ebp, ebp
jne 0x51be11
jmp 0x51bdfb
xor ebp, ebp
mov dword [esp + 0xc], ebp
push 0xe6
push str..crypto_randmd_rand.c
push 0x12
push 9
call fcn.004f1a90
add esp, 0x10
mov ecx, dword [0x6635e4]
mov eax, dword [0x6635e8]
movups xmm0, xmmword [0x663604]
push esi
push edi
mov dword [esp + 0x20], eax
mov edi, ecx
mov eax, dword [0x6635ec]
add ecx, ebx
mov dword [esp + 0x24], eax
mov eax, dword [0x663614]
mov dword [esp + 0x50], eax
mov dword [0x6635e4], ecx
movups xmmword [esp + 0x40], xmm0
cmp ecx, 0x3ff
jl 0x51be7f
mov eax, 0x7fdff7fd
mov dword [0x6635e0], 0x3ff
imul ecx
sub edx, ecx
sar edx, 9
mov eax, edx
shr eax, 0x1f
add eax, edx
imul eax, eax, 0x3ff
add ecx, eax
mov dword [0x6635e4], ecx
jmp 0x51be95
mov eax, dword [0x6635e0]
cmp eax, 0x3ff
jge 0x51be95
cmp ecx, eax
cmovg eax, ecx
mov dword [0x6635e0], eax
mov eax, 0x66666667
mov ecx, ebx
imul ebx
sar edx, 3
mov esi, edx
shr esi, 0x1f
add esi, edx
lea eax, [esi + esi*4]
shl eax, 2
sub ecx, eax
xor eax, eax
test ecx, ecx
setg al
add eax, esi
add dword [0x6635ec], eax
test ebp, ebp
jne 0x51bed9
push 0x106
push str..crypto_randmd_rand.c
push 0x12
push 0xa
call fcn.004f1a90
add esp, 0x10
lea eax, [esp + 0x28]
push eax
call fcn.004f5250
add esp, 4
test ebx, ebx
jle 0x51c002
lea ecx, [ebx - 1]
mov eax, 0xcccccccd
mul ecx
mov eax, edx
shr eax, 4
inc eax
mov dword [esp + 0x18], eax
mov eax, 0x14
cmp ebx, 0x14
mov esi, ebx
push 0
cmovg esi, eax
call fcn.004f5360
push eax
lea eax, [esp + 0x30]
push eax
call fcn.004f4e30
push 0x14
lea eax, [esp + 0x50]
push eax
lea eax, [esp + 0x3c]
push eax
call fcn.004f4fe0
lea ebp, [edi - 0x3ff]
add esp, 0x18
add ebp, esi
test ebp, ebp
jle 0x51bf6c
mov eax, esi
sub eax, ebp
push eax
lea eax, [edi + 0x663618]
push eax
lea eax, [esp + 0x30]
push eax
call fcn.004f4fe0
push ebp
lea eax, [esp + 0x38]
push 0x663618
push eax
call fcn.004f4fe0
add esp, 0x18
jmp 0x51bf81
push esi
lea eax, [edi + 0x663618]
push eax
lea eax, [esp + 0x30]
push eax
call fcn.004f4fe0
add esp, 0xc
mov ebp, dword [esp + 0x10]
lea eax, [esp + 0x28]
push esi
push ebp
push eax
call fcn.004f4fe0
push 8
lea eax, [esp + 0x30]
push eax
lea eax, [esp + 0x3c]
push eax
call fcn.004f4fe0
push 0
lea eax, [esp + 0x5c]
push eax
lea eax, [esp + 0x48]
push eax
call fcn.004f4d90
inc dword [esp + 0x48]
add ebp, esi
add esp, 0x24
mov dword [esp + 0x10], ebp
xor ecx, ecx
test esi, esi
jle 0x51bfeb
nop word [eax + eax]
mov al, byte [esp + ecx + 0x40]
xor byte [edi + 0x663618], al
inc edi
xor eax, eax
cmp edi, 0x3ff
cmovge edi, eax
inc ecx
cmp ecx, esi
jl 0x51bfd0
sub ebx, 0x14
mov eax, 0x14
sub dword [esp + 0x18], 1
jne 0x51bf07
mov ebp, dword [esp + 0x14]
lea eax, [esp + 0x28]
push eax
call fcn.004f4ff0
add esp, 4
pop edi
pop esi
test ebp, ebp
jne 0x51c02b
push 0x137
push str..crypto_randmd_rand.c
push 0x12
push 9
call fcn.004f1a90
add esp, 0x10
movups xmm1, xmmword [0x663604]
xor ecx, ecx
mov edx, 4
movups xmm0, xmmword [esp + 0x38]
pxor xmm1, xmm0
movups xmmword [0x663604], xmm1
nop dword [eax]
mov al, byte [esp + ecx + 0x48]
lea ecx, [ecx + 1]
xor byte [ecx + 0x663613], al
sub edx, 1
jne 0x51c050
movsd xmm0, qword [0x5dc998]
movsd xmm1, qword [0x6635f0]
comisd xmm0, xmm1
jbe 0x51c086
addsd xmm1, qword [esp + 0x5c]
movsd qword [0x6635f0], xmm1
test ebp, ebp
pop ebp
jne 0x51c0a1
push 0x144
push str..crypto_randmd_rand.c
push 0x12
push 0xa
call fcn.004f1a90
add esp, 0x10
mov ecx, dword [esp + 0x48]
pop ebx
xor ecx, esp
call fcn.0058651a
add esp, 0x48
ret