I want to generate an Ethereum private key from a single word mnemonic. For example,
(1) I could use
keccack256 online tool to transform a word to a private key. Would this be a valid key? Are there any other ways this could have been done?
(2) In the case of a 12-24 word mnemonic it is possible to generate a 512-seed from the mnemonic sentence which is used to generate a private key. How might this be done with only one word as seed ‘’phrase’’? I know this is possible since it has been done but I do not understand how. Would it be done in the exact same way the seed from the 12 word mnemonic is derived from?
So how is it possible to generate a private key from a single word. Is it possible only using case (1) or also case (2) and other?