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| author | Joe Tsai <joetsai@digital-static.net> | 2023-06-22 11:44:55 -0700 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2023-08-18 02:08:03 +0000 |
| commit | 243c8c0eec20d981d8e76a3aac82f97cca991571 (patch) | |
| tree | ef9bb7bce980eef12cb849a13c18868dead47f59 /src/encoding/json/encode.go | |
| parent | 9070f27039560c054fef8f2fb8d775cc2cb983b3 (diff) | |
| download | go-243c8c0eec20d981d8e76a3aac82f97cca991571.tar.xz | |
encoding: require unique alphabet for base32 and base64
In order for decoding to faithfully reproduce the encoded input,
the symbols must be unique (i.e., provide a bijective mapping).
Thus, reject duplicate symbols in NewEncoding.
As a minor optimization, modify WithPadding to use the decodeMap
to quickly check whether the padding character is used in O(1)
instead of O(32) or O(64).
Change-Id: I5631f6ff9335c35d59d020dc0e307e3520786fbc
Reviewed-on: https://go-review.googlesource.com/c/go/+/520335
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Joseph Tsai <joetsai@digital-static.net>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Joseph Tsai <joetsai@digital-static.net>
Diffstat (limited to 'src/encoding/json/encode.go')
0 files changed, 0 insertions, 0 deletions