what does the method to transform it contain?

The method is described in the Bitcoin Wiki page on WIF:

  1. Take a personal key
    0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D
  2. Add a 0x80 byte in entrance of it for mainnet addresses or 0xef for
    testnet addresses. Additionally add a 0x01 byte on the finish if the non-public key
    will correspond to a compressed public key
  3. Carry out SHA-256 hash on the prolonged key
  4. Carry out SHA-256 hash on results of SHA-256 hash
  5. Take the primary four bytes of the second SHA-256 hash, that is the checksum
  6. Add the four checksum bytes from level 5 on the finish of
    the prolonged key from level 2
  7. Convert the consequence from a byte string right into a base58 string utilizing
    Base58Examine encoding. That is the Pockets Import Format
    5HueCGU8rMjxEXxiPuD5BDku4MkFqeZyd4dZ1jvhTVqvbTLvyTJ

So in case your key begins with a 5 and has about 51 characters it’s already in WIF format and also you needn’t do something.

Am I anticipated to make use of the BIP38 password when changing

No.

To extract the private-key from a password-protected pockets you’ll want to enter the pockets password.

To convert an extracted private-key you do not want any password.

Nonetheless with wallets like Bitcoin core, the non-public key shall be already in WIF format whenever you use a Bitcoin core command like dumpprivkey within the debug console or within the command line interface (CLI) and many others. so no conversion is critical with Bitcoin core.

are there any protected offline software program I can use

The one protected software program is offline software program … compiled from rigorously inspected open-source code, operating on a pc operating a safe working system that has no community entry (no wired, wi-fi, bluetooth and many others), has by no means had any type of community entry and by no means could have any type of community entry.

In actuality the excellence between protected and unsafe is fake, there are solely levels of relative security.

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