Function at 0x503930
Capabilities:
Parse credit card information

Disassembly:
sub esp, 0x10
push ebx
push ebp
push esi
push edi
mov edi, dword [eax]
mov ecx, dword [edi + 0x86d8]
mov al, byte [ecx]
mov ebp, dword [edi + 0x128]
mov dword [esp + 0x1c], edi
mov esi, ecx
call fcn.005037f0
test eax, eax
je 0x503998
mov al, byte [esi + 1]
inc esi
call fcn.005037f0
test eax, eax
jne 0x503956
cmp esi, ecx
je 0x503998
mov eax, esi
jbe 0x503976
cmp byte [esi - 1], 0x2f
lea edx, [esi - 1]
jne 0x503976
mov eax, edx
push 1
xor ebx, ebx
push ebx
lea edx, [ebp + 4]
push edx
sub eax, ecx
push eax
push ecx
push edi
call fcn.00512d90
add esp, 0x18
cmp eax, ebx
je 0x50399d
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret
xor ebx, ebx
mov dword [ebp + 4], ebx
cmp byte [esi], 0x3b
jne 0x503b86
mov al, byte [esi + 1]
inc esi
mov ecx, esi
cmp al, bl
je 0x503b79
cmp al, 0x3d
je 0x5039cd
mov al, byte [esi + 1]
inc esi
cmp al, bl
jne 0x5039b4
pop edi
pop esi
pop ebp
mov eax, 3
pop ebx
add esp, 0x10
ret
cmp byte [esi], bl
je 0x503b79
push 1
push ebx
lea edx, [esp + 0x1c]
push edx
mov eax, esi
sub eax, ecx
push eax
push ecx
push edi
call fcn.00512d90
add esp, 0x18
cmp eax, ebx
jne 0x503bd5
mov al, byte [esi + 1]
inc esi
mov ecx, esi
call fcn.005037f0
test eax, eax
je 0x503a10
mov al, byte [esi + 1]
inc esi
call fcn.005037f0
test eax, eax
jne 0x503a03
push 1
lea edx, [esp + 0x1c]
push edx
lea eax, [esp + 0x18]
push eax
mov edx, esi
sub edx, ecx
push edx
push ecx
push edi
call fcn.00512d90
mov edi, eax
add esp, 0x18
cmp edi, ebx
jne 0x503b48
mov eax, dword [esp + 0x14]
push str.UIDVALIDITY
push eax
call fcn.00512be0
add esp, 8
test eax, eax
je 0x503a73
cmp dword [ebp + 8], ebx
jne 0x503a73
mov eax, dword [esp + 0x18]
cmp eax, ebx
jbe 0x503a67
mov ecx, dword [esp + 0x10]
cmp byte [ecx + eax - 1], 0x2f
jne 0x503a67
mov byte [ecx + eax - 1], bl
mov ecx, dword [esp + 0x10]
mov dword [ebp + 8], ecx
jmp 0x503b22
mov edx, dword [esp + 0x14]
push 0x543ab0
push edx
call fcn.00512be0
add esp, 8
test eax, eax
je 0x503aae
cmp dword [ebp + 0xc], ebx
jne 0x503aae
mov eax, dword [esp + 0x18]
cmp eax, ebx
jbe 0x503aa5
mov ecx, dword [esp + 0x10]
cmp byte [ecx + eax - 1], 0x2f
jne 0x503aa5
mov byte [ecx + eax - 1], bl
mov eax, dword [esp + 0x10]
mov dword [ebp + 0xc], eax
jmp 0x503b22
mov ecx, dword [esp + 0x14]
push str.SECTION
push ecx
call fcn.00512be0
add esp, 8
test eax, eax
je 0x503ae9
cmp dword [ebp + 0x10], ebx
jne 0x503ae9
mov eax, dword [esp + 0x18]
cmp eax, ebx
jbe 0x503ae0
mov ecx, dword [esp + 0x10]
cmp byte [ecx + eax - 1], 0x2f
jne 0x503ae0
mov byte [ecx + eax - 1], bl
mov edx, dword [esp + 0x10]
mov dword [ebp + 0x10], edx
jmp 0x503b22
mov eax, dword [esp + 0x14]
push str.PARTIAL
push eax
call fcn.00512be0
add esp, 8
test eax, eax
je 0x503b60
cmp dword [ebp + 0x14], ebx
jne 0x503b60
mov eax, dword [esp + 0x18]
cmp eax, ebx
jbe 0x503b1b
mov ecx, dword [esp + 0x10]
cmp byte [ecx + eax - 1], 0x2f
jne 0x503b1b
mov byte [ecx + eax - 1], bl
mov ecx, dword [esp + 0x10]
mov dword [ebp + 0x14], ecx
mov edx, dword [esp + 0x14]
push edx
mov dword [esp + 0x14], ebx
call dword [0x582a8c]
mov eax, dword [esp + 0x14]
push eax
call dword [0x582a8c]
mov edi, dword [esp + 0x24]
add esp, 8
jmp 0x50399d
mov ecx, dword [esp + 0x14]
push ecx
call dword [0x582a8c]
add esp, 4
mov eax, edi
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret
mov edx, dword [esp + 0x14]
push edx
call dword [0x582a8c]
mov eax, dword [esp + 0x14]
push eax
call dword [0x582a8c]
add esp, 8
pop edi
pop esi
pop ebp
mov eax, 3
pop ebx
add esp, 0x10
ret
cmp dword [ebp + 4], ebx
je 0x503bcb
cmp dword [ebp + 0xc], ebx
jne 0x503bcb
cmp byte [esi], 0x3f
jne 0x503bcb
mov al, byte [esi + 1]
inc esi
mov ecx, esi
call fcn.005037f0
test eax, eax
je 0x503bb1
mov al, byte [esi + 1]
inc esi
call fcn.005037f0
test eax, eax
jne 0x503ba4
push 1
push ebx
add ebp, 0x18
push ebp
mov edx, esi
sub edx, ecx
push edx
push ecx
push edi
call fcn.00512d90
add esp, 0x18
cmp eax, ebx
jne 0x503bd5
movsx eax, byte [esi]
neg eax
sbb eax, eax
and eax, 3
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x10
ret