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Step 7: Enter your password Next, you must enter your password a second time before Tagged will delete your account.

If the tag was just 32 bytes this wouldn't work, as you'd need to know 32 bytes of data before being able to process the first block.

Otherwise, the account deletion process will continue.

I noticed that the hash message for the tagged hash in is prefixed with SHA256 tag SHA256 tag , which also describes the reason Because this is a 64-byte long context-specific constant and the SHA256 block size is also 64 bytes, optimized implementations are possible identical to SHA256 itself, but with a modified initial state.

Thank you very much for your reply.

All this is saying is that it's a simple construction to concatenate the hashed tag twice.

Making statements based on opinion; back them up with references or personal experience.

"Using SHA256 of the tag name itself is reasonably simple and efficient for implementations that don't choose to use the optimization.

Using SHA256 of the tag name itself is reasonably simple and efficient for implementations that don't choose to use the optimization.