> それは、この世の全ての暗号を無意味にできるということ  
>  It means that it can render all the encryptions of the world useless

What does it mean in this context and what usage of it is being used? Is it
"means x)"?
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meaning words
What does ということ mean here?
Japanese grammar is a bit different from English grammar. "それは" roughly means
"that is." "ということ" is clarifying the end of the idea, if that makes sense.
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2022-04-04T18:06:59.980
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ということ works as a nominalizer to a sentence, roughly corresponding to the
English _that_.

So it literally translates _It is that it is possible to make all the
encryptions in this world useless_.

* * *

More grammatically you can think there is です omitted at the end. それは、...ということ
**です**. Or in this context ということ **を意味します** , in which case it literally
translates _It means that ..._.
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2022-04-05T01:05:16.583
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ということ is quotative particle と + the verb 言う[いう] "say; name; call" + the
nominalizer 事[こと]. (the kanji 事 is not normally used for this, although it
appears in compounds like 仕事. It is best understood as a set phrase, but it
decomposes logically:

  * Xと -> "X"
  * Xという -> to call (something) "X"
  * Xということ -> something which is/can be called "X" / a so-called "X"

... keeping in mind that と is used more loosely in Japanese than quotation in
English.

Nothing in the original sentence directly gives the "it means" part, but それは
is probably where the translator got that. More literally (and _trying_ to
reflect the grammatical structure, but that's really futile) the sentence is
something like: "As for that (それは), [it is] a thing (こと) 'called' (いう) (i.e.
described) thus (と): [with it,] this world (この世) 's (の) entire (全て) set of (の)
encryptions (暗号を) can be/are made (できる) meaningless (無意味に)".
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