Function at 0x5b1c20
Capabilities:
Authenticate hmac
Encode data using xor
Resolve function by parsing pe exports

Disassembly:
mov eax, 0x32c
call fcn.00490990
mov eax, dword [0x84dfc0]
xor eax, esp
mov dword [esp + 0x328], eax
cmp dword [esp + 0x348], 0x100000
mov eax, dword [esp + 0x334]
mov ecx, dword [esp + 0x33c]
mov edx, dword [esp + 0x340]
push ebx
mov ebx, dword [esp + 0x334]
push ebp
push esi
mov esi, dword [esp + 0x344]
mov dword [esp + 0x5c], eax
mov eax, dword [esp + 0x358]
mov ebp, 8
push edi
mov dword [esp + 0x70], ebx
mov dword [esp + 0x50], esi
mov dword [esp + 0x44], ecx
mov dword [esp + 0x48], edx
mov dword [esp + 0x4c], eax
mov edi, 0x40
mov dword [esp + 0x40], 0x28
mov dword [esp + 0x24], ebp
mov byte [esp + 0x12], 1
jb 0x5b1cbd
push str.data_plus_mac_plus_padding_size___1024__1024
push 0x1c7
push str.._ssl_s3_cbc.c
call fcn.0050b4c0
add esp, 0xc
push ebx
call fcn.004f7450
push eax
call fcn.0052ce40
add esp, 8
cmp eax, 0x2a0
jg 0x5b1d97
je 0x5b1d62
cmp eax, 4
je 0x5b1d20
cmp eax, 0x40
jne 0x5b1dac
lea ecx, [esp + 0x90]
push ecx
call fcn.005691e0
add esp, 4
test eax, eax
jle 0x5b23f5
mov dword [esp + 0x28], 0x5b19e0
mov dword [esp + 0x14], 0x534b40
mov dword [esp + 0x18], 0x14
jmp 0x5b1e67
lea edx, [esp + 0x90]
push edx
call fcn.00507dc0
add esp, 4
test eax, eax
jle 0x5b23f5
mov dword [esp + 0x28], 0x5b1950
mov dword [esp + 0x14], 0x508820
mov dword [esp + 0x18], 0x10
mov dword [esp + 0x40], 0x30
mov byte [esp + 0x12], 0
jmp 0x5b1e67
lea eax, [esp + 0x90]
push eax
call fcn.005091b0
add esp, 4
test eax, eax
jle 0x5b23f5
mov dword [esp + 0x28], 0x5b1a90
mov dword [esp + 0x14], 0x50a3a0
mov dword [esp + 0x18], 0x20
jmp 0x5b1e67
sub eax, 0x2a1
je 0x5b1e26
sub eax, 1
je 0x5b1e08
sub eax, 1
je 0x5b1dd6
push 0x7906d4
push 0x209
push str.._ssl_s3_cbc.c
call fcn.0050b4c0
add esp, 0xc
test esi, esi
je 0x5b23f5
mov dword [esi], 0
jmp 0x5b23f5
lea ecx, [esp + 0x90]
push ecx
call fcn.00509150
add esp, 4
test eax, eax
jle 0x5b23f5
mov dword [esp + 0x28], 0x5b1a90
mov dword [esp + 0x14], 0x50a3a0
mov dword [esp + 0x18], 0x1c
jmp 0x5b1e67
lea edx, [esp + 0x90]
push edx
call fcn.00534d50
add esp, 4
test eax, eax
jle 0x5b23f5
mov dword [esp + 0x18], edi
jmp 0x5b1e46
lea eax, [esp + 0x90]
push eax
call fcn.00534cb0
add esp, 4
test eax, eax
jle 0x5b23f5
mov dword [esp + 0x18], 0x30
mov dword [esp + 0x24], 0x10
mov ebp, dword [esp + 0x24]
mov edi, 0x80
mov dword [esp + 0x14], 0x535a10
mov dword [esp + 0x28], 0x5b1b90
mov bl, byte [esp + 0x364]
mov dword [esp + 0x34], 0xd
test bl, bl
je 0x5b1e8d
mov ecx, dword [esp + 0x360]
mov edx, dword [esp + 0x40]
lea eax, [edx + ecx + 0xb]
mov dword [esp + 0x34], eax
mov eax, dword [esp + 0x358]
xor ecx, ecx
test bl, bl
sete cl
lea ecx, [ecx*4 + 2]
mov dword [esp + 0x30], ecx
mov ecx, dword [esp + 0x34]
sub ecx, dword [esp + 0x18]
lea edx, [ecx + ebp]
add edx, edi
lea eax, [edx + eax - 1]
xor edx, edx
div edi
mov edx, dword [esp + 0x354]
add ecx, edx
xor edx, edx
mov esi, eax
xor eax, eax
mov dword [esp + 0x20], eax
mov dword [esp + 0x2c], eax
mov eax, ecx
div edi
mov dword [esp + 0x38], edx
xor edx, edx
mov dword [esp + 0x54], eax
lea eax, [ecx + ebp]
div edi
xor edx, edx
test bl, bl
setne dl
mov dword [esp + 0x64], eax
mov eax, dword [esp + 0x30]
add edx, eax
cmp esi, edx
jbe 0x5b1f09
sub esi, eax
mov eax, esi
mov dword [esp + 0x20], eax
imul eax, edi
mov dword [esp + 0x2c], eax
cmp byte [esp + 0x364], 0
lea ebx, [ecx*8]
jne 0x5b1fa8
push edi
lea eax, [esp + 0x1bc]
push 0
push eax
lea ebx, [ebx + edi*8]
call fcn.0048d310
mov esi, dword [esp + 0x36c]
add esp, 0xc
cmp esi, 0x80
jbe 0x5b1f5a
push str.mac_secret_length___sizeof_hmac_pad_
push 0x271
push str.._ssl_s3_cbc.c
call fcn.0050b4c0
add esp, 0xc
mov ecx, dword [esp + 0x4c]
push esi
push ecx
lea edx, [esp + 0x1c0]
push edx
call fcn.004909c0
add esp, 0xc
xor eax, eax
test edi, edi
jbe 0x5b1f8d
jmp 0x5b1f80
xor byte [esp + eax + 0x1b8], 0x36
inc eax
cmp eax, edi
jb 0x5b1f80
mov esi, dword [esp + 0x14]
lea eax, [esp + 0x1b8]
push eax
lea ecx, [esp + 0x94]
push ecx
call esi
add esp, 8
jmp 0x5b1fac
mov esi, dword [esp + 0x14]
cmp byte [esp + 0x12], 0
je 0x5b1fed
lea edx, [ebp - 4]
push edx
lea eax, [esp + 0x16c]
push 0
push eax
call fcn.0048d310
lea ebp, [esp + ebp + 0x174]
mov ecx, ebx
mov edx, ebx
shr ecx, 0x18
shr edx, 0x10
mov eax, ebx
add esp, 0xc
shr eax, 8
mov byte [ebp - 4], cl
mov byte [ebp - 3], dl
mov byte [ebp - 2], al
mov byte [ebp - 1], bl
jmp 0x5b2022
push ebp
lea ecx, [esp + 0x16c]
push 0
push ecx
call fcn.0048d310
lea ebp, [esp + ebp + 0x174]
mov edx, ebx
mov eax, ebx
shr edx, 0x18
shr eax, 0x10
mov ecx, ebx
add esp, 0xc
shr ecx, 8
mov byte [ebp - 5], dl
mov byte [ebp - 6], al
mov byte [ebp - 7], cl
mov byte [ebp - 8], bl
mov ebp, dword [esp + 0x2c]
test ebp, ebp
jbe 0x5b214c
cmp byte [esp + 0x364], 0
je 0x5b20cf
mov esi, dword [esp + 0x34]
cmp esi, edi
jbe 0x5b23f5
mov ebx, dword [esp + 0x44]
mov ebp, dword [esp + 0x14]
lea edx, [esp + 0x90]
push ebx
push edx
sub esi, edi
call ebp
push esi
add ebx, edi
lea eax, [esp + 0x244]
push ebx
push eax
call fcn.004909c0
mov ebx, dword [esp + 0x5c]
mov ecx, edi
sub ecx, esi
push ecx
lea edx, [esp + esi + 0x250]
push ebx
push edx
call fcn.004909c0
lea eax, [esp + 0x258]
push eax
lea ecx, [esp + 0xb4]
push ecx
call ebp
mov eax, dword [esp + 0x54]
xor edx, edx
div edi
add esp, 0x28
dec eax
cmp eax, 1
jbe 0x5b214c
sub ebx, esi
add ebx, edi
lea esi, [eax - 1]
lea edx, [esp + 0x90]
push ebx
push edx
call dword [esp + 0x1c]
add esp, 8
add ebx, edi
sub esi, 1
jne 0x5b20b3
jmp 0x5b214c
mov eax, dword [esp + 0x44]
mov ecx, dword [eax]
mov edx, dword [eax + 4]
mov ebx, dword [esp + 0x48]
mov dword [esp + 0x238], ecx
mov ecx, dword [eax + 8]
mov dword [esp + 0x23c], edx
mov dl, byte [eax + 0xc]
lea eax, [edi - 0xd]
push eax
mov dword [esp + 0x244], ecx
lea ecx, [esp + 0x249]
push ebx
push ecx
mov byte [esp + 0x250], dl
call fcn.004909c0
lea edx, [esp + 0x244]
push edx
lea eax, [esp + 0xa0]
push eax
call esi
xor edx, edx
mov eax, ebp
div edi
add esp, 0x14
cmp eax, 1
jbe 0x5b214c
lea ebx, [ebx + edi - 0xd]
lea ebp, [eax - 1]
lea ecx, [esp + 0x90]
push ebx
push ecx
call esi
add esp, 8
add ebx, edi
sub ebp, 1
jne 0x5b2137
push 0x40
lea edx, [esp + 0x17c]
push 0
push edx
call fcn.0048d310
mov esi, dword [esp + 0x2c]
mov eax, dword [esp + 0x3c]
mov ecx, esi
add eax, ecx
add esp, 0xc
mov dword [esp + 0x3c], esi
mov dword [esp + 0x68], eax
cmp ecx, eax
ja 0x5b2338
jmp 0x5b2184
mov esi, dword [esp + 0x3c]
mov ecx, esi
xor ecx, dword [esp + 0x54]
xor esi, dword [esp + 0x64]
lea eax, [ecx - 1]
not ecx
shr ecx, 0x1f
shr eax, 0x1f
and al, cl
mov ecx, esi
lea ebx, [esi - 1]
shr ebx, 0x1f
not ecx
shr ecx, 0x1f
and bl, cl
neg al
neg bl
xor esi, esi
mov byte [esp + 0x1f], al
mov byte [esp + 0x13], bl
test edi, edi
jbe 0x5b22cf
mov ecx, dword [esp + 0x38]
movzx ebp, al
lea edx, [ecx + 1]
shr edx, 0x1f
not bl
or bl, al
mov dword [esp + 0x5c], ebp
mov ebp, dword [esp + 0x38]
mov dword [esp + 0x6c], edx
mov edx, dword [esp + 0x24]
mov eax, edi
sub eax, dword [esp + 0x24]
shr ecx, 0x1f
neg ebp
sub edx, edi
mov dword [esp + 0x74], eax
lea eax, [esp + edx + 0x168]
mov dword [esp + 0x30], ecx
mov byte [esp + 0x1e], bl
mov dword [esp + 0x20], eax
jmp 0x5b2214
mov ecx, dword [esp + 0x30]
mov eax, dword [esp + 0x2c]
mov edx, dword [esp + 0x34]
mov byte [esp + 0x12], 0
cmp eax, edx
jae 0x5b222e
mov edx, dword [esp + 0x44]
mov dl, byte [edx + eax]
jmp 0x5b2244
mov ebx, dword [esp + 0x358]
add ebx, edx
cmp eax, ebx
jae 0x5b2248
mov ebx, dword [esp + 0x48]
sub ebx, edx
mov dl, byte [ebx + eax]
mov byte [esp + 0x12], dl
inc eax
mov dword [esp + 0x2c], eax
mov edx, esi
shr edx, 0x1f
mov bl, dl
xor bl, cl
mov eax, ebp
shr eax, 0x1f
xor al, cl
or al, bl
mov ebx, dword [esp + 0x38]
xor al, dl
dec al
movzx ecx, al
and ecx, dword [esp + 0x5c]
inc ebx
mov eax, esi
sub eax, ebx
mov bl, byte [esp + 0x6c]
shr eax, 0x1f
xor al, bl
xor bl, dl
or al, bl
mov bl, byte [esp + 0x13]
xor al, dl
dec al
and al, byte [esp + 0x1f]
mov dl, cl
not dl
and dl, byte [esp + 0x12]
and cl, 0x80
not al
or dl, cl
and al, dl
and al, byte [esp + 0x1e]
cmp esi, dword [esp + 0x74]
jb 0x5b22ba
movzx ecx, bl
mov dl, cl
not dl
and dl, al
mov eax, dword [esp + 0x20]
mov al, byte [eax]
and al, cl
or al, dl
inc dword [esp + 0x20]
mov byte [esp + esi + 0x2b8], al
inc esi
inc ebp
cmp esi, edi
jb 0x5b2210
lea ecx, [esp + 0x2b8]
push ecx
lea edx, [esp + 0x94]
push edx
call dword [esp + 0x1c]
lea eax, [esp + 0x2c0]
push eax
lea ecx, [esp + 0x9c]
push ecx
call dword [esp + 0x38]
mov esi, dword [esp + 0x28]
add esp, 0x10
xor eax, eax
test esi, esi
jbe 0x5b2325
jmp 0x5b2310
mov dl, byte [esp + eax + 0x2b8]
and dl, bl
or byte [esp + eax + 0x178], dl
inc eax
cmp eax, esi
jb 0x5b2310
mov eax, dword [esp + 0x3c]
inc eax
mov dword [esp + 0x3c], eax
cmp eax, dword [esp + 0x68]
jbe 0x5b2180
lea eax, [esp + 0x78]
push eax
call fcn.00504c00
mov ecx, dword [esp + 0x74]
mov edx, dword [ecx]
push 0
push edx
lea eax, [esp + 0x84]
push eax
call fcn.00504c50
add esp, 0x10
test eax, eax
jle 0x5b23e8
cmp byte [esp + 0x364], 0
je 0x5b2410
mov esi, dword [esp + 0x40]
push esi
lea ecx, [esp + 0x1bc]
push 0x5c
push ecx
call fcn.0048d310
mov edx, dword [esp + 0x36c]
mov eax, dword [esp + 0x58]
push edx
push eax
lea ecx, [esp + 0x8c]
push ecx
call fcn.00504e00
add esp, 0x18
test eax, eax
jle 0x5b23e8
push esi
lea edx, [esp + 0x1bc]
push edx
lea eax, [esp + 0x80]
push eax
call fcn.00504e00
add esp, 0xc
test eax, eax
jle 0x5b23e8
mov ecx, dword [esp + 0x18]
push ecx
lea edx, [esp + 0x17c]
push edx
lea eax, [esp + 0x80]
push eax
call fcn.00504e00
add esp, 0xc
test eax, eax
jg 0x5b246f
lea eax, [esp + 0x78]
push eax
call fcn.00504e90
add esp, 4
xor eax, eax
mov ecx, dword [esp + 0x338]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.0048d1f2
add esp, 0x32c
ret
xor eax, eax
test edi, edi
jbe 0x5b242d
jmp 0x5b2420
xor byte [esp + eax + 0x1b8], 0x6a
inc eax
cmp eax, edi
jb 0x5b2420
push edi
lea ecx, [esp + 0x1bc]
push ecx
lea edx, [esp + 0x80]
push edx
call fcn.00504e00
add esp, 0xc
test eax, eax
jle 0x5b23e8
mov eax, dword [esp + 0x18]
push eax
lea ecx, [esp + 0x17c]
push ecx
lea edx, [esp + 0x80]
push edx
call fcn.00504e00
add esp, 0xc
test eax, eax
jle 0x5b23e8
mov ecx, dword [esp + 0x60]
lea eax, [esp + 0x58]
push eax
push ecx
lea edx, [esp + 0x80]
push edx
call fcn.00504f70
mov eax, dword [esp + 0x5c]
add esp, 0xc
test eax, eax
je 0x5b2497
mov ecx, dword [esp + 0x58]
mov dword [eax], ecx
lea edx, [esp + 0x78]
push edx
call fcn.00504e90
add esp, 4
mov eax, 1
jmp 0x5b23f7