void RT_HMAC_SHA1(void *param_1,uint param_2,undefined4 param_3,undefined4 param_4,void *param_5,

                 size_t param_6)

{

  byte bVar1;

  byte *pbVar2;

  byte *pbVar3;

  undefined1 auStack_150 [20];

  byte local_13c [64];

  byte abStack_fc [4];

  undefined1 auStack_f8 [104];

  undefined1 auStack_90 [108];

  memset(auStack_f8,0,0x68)   //possible issue identified - semgrep

  memset(auStack_90,0,0x68)   //possible issue identified - semgrep

  memset(local_13c,0,0x40)   //possible issue identified - semgrep

  if (param_2 < 0x41) {

    memmove(local_13c,param_1,param_2)   //possible issue identified - semgrep

  }

  else {

    RT_SHA1(param_1,param_2,local_13c);

  }

  pbVar2 = local_13c;

  pbVar3 = pbVar2;

  bVar1 = local_13c[0];

  while( true ) {

    *pbVar3 = bVar1 ^ 0x36;

    pbVar3 = pbVar3 + 1;

    if (pbVar3 == abStack_fc) break;

    bVar1 = *pbVar3;

  }

  RT_SHA1_Init(auStack_f8);

  RT_SHA1_Append(auStack_f8,pbVar2,0x40);

  RT_SHA1_Append(auStack_f8,param_3,param_4);

  RT_SHA1_End(auStack_f8,auStack_150);

  while( true ) {

    *pbVar2 = local_13c[0] ^ 0x6a;

    pbVar2 = pbVar2 + 1;

    if (pbVar2 == pbVar3) break;

    local_13c[0] = *pbVar2;

  }

  RT_SHA1_Init(auStack_90);

  RT_SHA1_Append(auStack_90,local_13c,0x40);

  RT_SHA1_Append(auStack_90,auStack_150,0x14);

  RT_SHA1_End(auStack_90,auStack_150);

  if (0x14 < param_6) {

    param_6 = 0x14   //possible issue identified - semgrep

  }

  memmove(param_5,auStack_150,param_6)   //possible issue identified - semgrep

  return;

}