40 might too much TBH. If it's completely random letters it's already more than 128 bits of entropy - more than what Bitcoin itself uses and considered unbreakable.
However if it's words or such it may be appropriate.
40 might too much TBH. If it's completely random letters it's already more than 128 bits of entropy - more than what Bitcoin itself uses and considered unbreakable.
However if it's words or such it may be appropriate.
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