Advanced Reversing Mechanics 2

import os
import string
from pwn import *
flag = "rgbCTF{ARM_ar1thm3t1c_r0cks_fad96"
enc = [0x0A, 0xFB, 0xF4, 0x88, 0xDD, 0x9D, 0x7D, 0x5F, 0x9E, 0xA3, 0xC6, 0xBA, 0xF5, 0x95, 0x5D, 0x88, 0x3B, 0xE1, 0x31, 0x50, 0xC7, 0xFA, 0xF5, 0x81, 0x99, 0xC9, 0x7C, 0x23, 0xA1, 0x91, 0x87, 0xB5, 0xB1, 0x95, 0xE4]
def getlast(string):
    response = os.popen(f"./arm {string}").read().split(", ")
    return int(response[-2],16)

for i in range(len(flag),len(enc)):
    for j in string.ascii_lowercase + string.ascii_uppercase + '0123456789_}':
        try:
            resp = getlast(flag + j)
            if resp == enc[i]:
                flag += j
                print(flag)
                break
        except:
            pass
    else:
        flag += '-'
print(flag.encode())

"""
for j in map(chr,range(256)):
    try:
        resp = getlast(flag + j)
        if resp == enc[len(flag)]:
            print(j)
    except:
        pass
"""

import string
def encryptflag(toencrypt):
    index = 0
    bvvar3 = toencrypt[index]
    while True:
        curbyte = bvvar3
        uVar2 = curbyte - 10 & 0xff
        uVar4 = curbyte
        if (bvvar3 < 0x50) and (uVar4 == uVar2 or 0x50 < uVar2):
            uVar4 = curbyte + 0x46 & 0xff
        uVar4 = (uVar4 - 7 ^ 0x43) & 0xff
        pbVar1 = index + 1
        toencrypt[index] = (uVar4 << 6) | (uVar4 >> 2)
        bvvar3 = toencrypt[pbVar1]
        if bvvar3 == 0: break
        uVar4 = pbVar1 % 5
        bvvar3 = bvvar3 << (-uVar4 & 7) | bvvar3 >> (uVar4 & 0xff)
        if uVar4 == 2:
            bvvar3 = bvvar3 - 1
        toencrypt[pbVar1] = bvvar3
        bvvar3 = toencrypt[pbVar1]
        index = pbVar1
    for i in range(len(toencrypt)):
        toencrypt[i] = toencrypt[i] & 255
enc = [0x0A, 0xFB, 0xF4, 0x88, 0xDD, 0x9D, 0x7D, 0x5F, 0x9E, 0xA3, 0xC6, 0xBA, 0xF5, 0x95, 0x5D, 0x88, 0x3B, 0xE1, 0x31, 0x50, 0xC7, 0xFA, 0xF5, 0x81, 0x99, 0xC9, 0x7C, 0x23, 0xA1, 0x91, 0x87, 0xB5, 0xB1, 0x95, 0xE4]
flag = list(b"rgbCTF{ARM_ar1thm3t1c_r0cks_fad")
l = len(flag)
flag += [0]*(len(enc) - len(flag))
temparr = flag[:]
for i in range(l,len(enc)):
    for j in map(ord,string.ascii_lowercase + string.ascii_uppercase + '0123456789_}'):
        temparr = flag[:]
        temparr[i] = j
        encryptflag(temparr)
        if temparr[i] == enc[i]:
            flag[i] = j
            break
print(flag)
inter = map(chr,flag)
print(''.join(inter))
arr = list(b"rgbCTF{") + [0]
encryptflag(arr)
print(", ".join(map(hex,arr)))

#include <stdlib.h>
#include <stdio.h>
#define true 1
void encryptFlag(char *flag);
int main(int param_1,char *argv[])
{
  char *pcVar1;
  char *pbVar2;
  char abStack272 [256];

  pcVar1 = stpcpy((char *)abStack272,argv[1]);
  encryptFlag(abStack272);
  pbVar2 = abStack272;
  for(int i = 0; i < strlen(argv[1]); i++){
    printf("%02X, ",(uint)((pbVar2[i] & 0xff)));
  }
  putchar(10);
  return 0;
}

void encryptFlag(char *flag)
{
  char *curpointer;
  char *pbVar1;
  uint uVar2;
  char bVar3;
  uint curbyte;
  uint uVar4;

  bVar3 = *flag;
  curpointer = flag;
  if (bVar3 == 0) {
    return;
  }
  while( 1) {
    curbyte = (uint)bVar3;
    uVar2 = curbyte - 10 & 0xff;
    uVar4 = curbyte;
    if ((bVar3 < 0x50) && (uVar4 = uVar2, 0x50 < uVar2)) {
      uVar4 = curbyte + 0x46 & 0xff;
    }
    uVar4 = (uVar4 - 7 ^ 0x43) & 0xff;
    pbVar1 = curpointer + 1;
    *curpointer = (char)(uVar4 << 6) | (char)(uVar4 >> 2);
    bVar3 = *pbVar1;
    if (bVar3 == 0) break;
    uVar4 = (int)(pbVar1 + -(int)flag) % 5;
    bVar3 = bVar3 << (-uVar4 & 7) | bVar3 >> (uVar4 & 0xff);
    if (uVar4 == 2) {
      bVar3 = bVar3 - 1;
    }
    *pbVar1 = bVar3;
    bVar3 = *pbVar1;
    curpointer = pbVar1;
  }
  return;
}