__int64 __fastcall ITF::StrToCRC_Template<1u>(unsigned __int8 *a1, unsigned int a2)
{
  unsigned int v2; // w8
  int v3; // w10
  unsigned int v4; // w11
  int v5; // w9
  int v6; // w12
  int v7; // w13
  int v8; // w14
  unsigned int v9; // w12
  int v10; // w13
  int v11; // w15
  unsigned int v12; // w12
  int v13; // w14
  int v14; // w12
  int v15; // w13
  int v16; // w9
  int v17; // w12
  int v18; // w15
  unsigned int v19; // w14
  int v20; // w15
  unsigned int v21; // w14
  int v22; // w13
  int v23; // w14
  int v24; // w15
  int v25; // w8
  int v26; // w9
  unsigned int v27; // w12
  unsigned __int8 v28; // w13
  int v29; // w15
  unsigned int v30; // w12
  unsigned __int8 v31; // w13
  unsigned int v32; // w10
  int v33; // w9
  unsigned int v34; // w8
  unsigned int v35; // w10
  int v36; // w9
  unsigned int v37; // w8
  unsigned int v38; // w10
  unsigned int v39; // w10
  int v40; // w11
  int v41; // w11
  int v42; // w11
  int v43; // w11
  int v44; // w11
  int v45; // w11
  int v46; // w11
  int v47; // w11
  int v48; // w11
  int v49; // w11
  int v50; // w11
  int v51; // w9
  unsigned int v52; // w8
  unsigned int v53; // w10
  int v54; // w9
  unsigned int v55; // w8
  unsigned int v56; // w10
  int v57; // w9

  v2 = -1640531527;
  v3 = 0;
  v4 = a2;
  v5 = -1640531527;
  if ( a2 >= 0xC )
  {
    do
    {
      v6 = *a1;
      v7 = a1[1];
      if ( (unsigned int)(v6 - 97) <= 0x19 )
        v6 += 224;
      v8 = a1[2];
      if ( (unsigned int)(v7 - 97) <= 0x19 )
        LOBYTE(v7) = v7 - 32;
      v9 = v6 & 0xFFFF00FF | ((unsigned __int8)v7 << 8);
      v10 = a1[3];
      if ( (unsigned int)(v8 - 97) <= 0x19 )
        LOBYTE(v8) = v8 - 32;
      if ( (unsigned int)(v10 - 97) <= 0x19 )
        LOBYTE(v10) = v10 - 32;
      v11 = a1[4];
      v12 = v9 & 0xFF00FFFF | ((unsigned __int8)v8 << 16);
      v13 = v11 + 224;
      v14 = v12 & 0xFFFFFF | ((unsigned __int8)v10 << 24);
      v15 = a1[6];
      v16 = v14 + v5;
      v17 = a1[8];
      if ( (unsigned int)(v11 - 97) > 0x19 )
        v13 = a1[4];
      v18 = a1[5];
      if ( (unsigned int)(v18 - 97) <= 0x19 )
        LOBYTE(v18) = v18 - 32;
      v19 = v13 & 0xFFFF00FF | ((unsigned __int8)v18 << 8);
      if ( (unsigned int)(v15 - 97) <= 0x19 )
        LOBYTE(v15) = v15 - 32;
      v20 = a1[7];
      v21 = v19 & 0xFF00FFFF | ((unsigned __int8)v15 << 16);
      if ( (unsigned int)(v20 - 97) <= 0x19 )
        LOBYTE(v20) = v20 - 32;
      if ( (unsigned int)(v17 - 97) <= 0x19 )
        v17 += 224;
      v22 = a1[9];
      v23 = v21 & 0xFFFFFF | ((unsigned __int8)v20 << 24);
      v24 = a1[10];
      v25 = v23 + v2;
      v26 = v16 - v25;
      if ( (unsigned int)(v22 - 97) <= 0x19 )
        LOBYTE(v22) = v22 - 32;
      v27 = v17 & 0xFFFF00FF | ((unsigned __int8)v22 << 8);
      v28 = v24 - 32;
      if ( (unsigned int)(v24 - 97) > 0x19 )
        v28 = a1[10];
      v29 = a1[11];
      a1 += 12;
      v30 = v27 & 0xFF00FFFF | (v28 << 16);
      if ( (unsigned int)(v29 - 97) <= 0x19 )
        v31 = v29 - 32;
      else
        v31 = v29;
      v32 = (v30 & 0xFFFFFF | (v31 << 24)) + v3;
      v33 = (v26 - v32) ^ (v32 >> 13);
      v34 = (v25 - v32 - v33) ^ (v33 << 8);
      v35 = (v32 - v33 - v34) ^ (v34 >> 13);
      v36 = (v33 - v34 - v35) ^ (v35 >> 12);
      v37 = (v34 - v35 - v36) ^ (v36 << 16);
      v38 = (v35 - v36 - v37) ^ (v37 >> 5);
      v5 = (v36 - v37 - v38) ^ (v38 >> 3);
      v2 = (v37 - v38 - v5) ^ (v5 << 10);
      v3 = (v38 - v5 - v2) ^ (v2 >> 15);
      v4 -= 12;
    }
    while ( v4 > 0xB );
  }
  v39 = v3 + a2;
  switch ( v4 )
  {
    case 1u:
      goto LABEL_59;
    case 2u:
      goto LABEL_56;
    case 3u:
      goto LABEL_53;
    case 4u:
      goto LABEL_50;
    case 5u:
      goto LABEL_47;
    case 6u:
      goto LABEL_44;
    case 7u:
      goto LABEL_41;
    case 8u:
      goto LABEL_38;
    case 9u:
      goto LABEL_35;
    case 0xAu:
      goto LABEL_32;
    case 0xBu:
      v40 = a1[10];
      if ( (unsigned int)(v40 - 97) <= 0x19 )
        v40 += 224;
      v39 += v40 << 24;
LABEL_32:
      v41 = a1[9];
      if ( (unsigned int)(v41 - 97) <= 0x19 )
        LOBYTE(v41) = v41 - 32;
      v39 += (unsigned __int8)v41 << 16;
LABEL_35:
      v42 = a1[8];
      if ( (unsigned int)(v42 - 97) <= 0x19 )
        LOBYTE(v42) = v42 - 32;
      v39 += (unsigned __int8)v42 << 8;
LABEL_38:
      v43 = a1[7];
      if ( (unsigned int)(v43 - 97) <= 0x19 )
        v43 += 224;
      v2 += v43 << 24;
LABEL_41:
      v44 = a1[6];
      if ( (unsigned int)(v44 - 97) <= 0x19 )
        LOBYTE(v44) = v44 - 32;
      v2 += (unsigned __int8)v44 << 16;
LABEL_44:
      v45 = a1[5];
      if ( (unsigned int)(v45 - 97) <= 0x19 )
        LOBYTE(v45) = v45 - 32;
      v2 += (unsigned __int8)v45 << 8;
LABEL_47:
      v46 = a1[4];
      if ( (unsigned int)(v46 - 97) <= 0x19 )
        LOBYTE(v46) = v46 - 32;
      v2 += (unsigned __int8)v46;
LABEL_50:
      v47 = a1[3];
      if ( (unsigned int)(v47 - 97) <= 0x19 )
        v47 += 224;
      v5 += v47 << 24;
LABEL_53:
      v48 = a1[2];
      if ( (unsigned int)(v48 - 97) <= 0x19 )
        LOBYTE(v48) = v48 - 32;
      v5 += (unsigned __int8)v48 << 16;
LABEL_56:
      v49 = a1[1];
      if ( (unsigned int)(v49 - 97) <= 0x19 )
        LOBYTE(v49) = v49 - 32;
      v5 += (unsigned __int8)v49 << 8;
LABEL_59:
      v50 = *a1;
      if ( (unsigned int)(v50 - 97) <= 0x19 )
        LOBYTE(v50) = v50 - 32;
      v5 += (unsigned __int8)v50;
      break;
    default:
      break;
  }
  v51 = (v5 - v2 - v39) ^ (v39 >> 13);
  v52 = (v2 - v39 - v51) ^ (v51 << 8);
  v53 = (v39 - v51 - v52) ^ (v52 >> 13);
  v54 = (v51 - v52 - v53) ^ (v53 >> 12);
  v55 = (v52 - v53 - v54) ^ (v54 << 16);
  v56 = (v53 - v54 - v55) ^ (v55 >> 5);
  v57 = (v54 - v55 - v56) ^ (v56 >> 3);
  return (v56 - v57 - ((v55 - v56 - v57) ^ (v57 << 10))) ^ (((v55 - v56 - v57) ^ (v57 << 10)) >> 15);
}

from pytea import TEA
key = os.urandom(16)
print('key is', key)
content = 'Hello, 你好'
tea = TEA(key)
e = tea.encrypt(content.encode())
print('encrypt hex:', e.hex())
d = tea.decrypt(e)
print('decrypt:', d.decode())