Re: Base64 encoding applied to different unicode texts always yields different base64 texts ... true or false?

On Fri, Oct 12, 2018 at 3:57 AM Costello, Roger L. via Unicode <
unicode_at_unicode.org> wrote:

> Hi Unicode Experts,
>
> Suppose base64 encoding is applied to m to yield base64 text t.
>
> Next, suppose base64 encoding is applied to m' to yield base64 text t'.
>
> If m is not equal to m', then t will not equal t'.
>
> In other words, given different inputs, base64 encoding always yields
> different base64 texts.
>
> True or false?
>
true. base64 to and from is always the same thing.

>
> How about the opposite direction: If m is base64 encoded to yield t and
> then t is base64 decoded to yield n, will it always be the case that m
> equals n?
>
False.
Canonical translation may occur which the different base64 may be the same
sort of string...

https://en.wikipedia.org/wiki/Unicode_equivalence
https://en.wikipedia.org/wiki/Canonical_form

> /Roger
>
>
Received on Fri Oct 12 2018 - 06:09:11 CDT