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encoding/base64: with normal padding: input=>encode=>decode=>output (!=input) #25552

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jeffkayser2 opened this issue May 24, 2018 · 3 comments
Closed

encoding/base64: with normal padding: input=>encode=>decode=>output (!=input) #25552

jeffkayser2 opened this issue May 24, 2018 · 3 comments
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FrozenDueToAge WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided.
Milestone
Unplanned

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@jeffkayser2
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Please answer these questions before submitting your issue. Thanks!

What version of Go are you using (go version)?

[jkayser@oel7latest ~]$ go version
go version go1.10.2 linux/amd64
[jkayser@oel7latest ~]$

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

[jkayser@oel7latest ~]$ go env
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/jkayser/.cache/go-build"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/jkayser"
GORACE=""
GOROOT="/usr/local/go1.10.2"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go1.10.2/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build522215723=/tmp/go-build -gno-record-gcc-switches"
[jkayser@oel7latest ~]$

What did you do?

If possible, provide a recipe for reproducing the error.
A complete runnable program is good.
A link on play.golang.org is best.
https://play.golang.org/p/-CtQL8ilWPK

What did you expect to see?

The input and output being identical.

What did you see instead?

input: 6162
output: 5957493d
decoded: 616200
input != decoded
@fraenkel
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If you actually checked the number of bytes written during decode and resize it, you will end up with the same value as input.

@ghost
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ghost commented May 25, 2018

https://play.golang.org/p/OKp3jWYwTb7

@andybons andybons changed the title base64 with normal padding: input=>encode=>decode=>output (!=input) encoding/base64: with normal padding: input=>encode=>decode=>output (!=input) May 25, 2018
@andybons andybons added the WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. label May 25, 2018
@andybons andybons added this to the Unplanned milestone May 25, 2018
@andybons
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Closing as @fraenkel and @opennota seem to have provided an answer to your issue. Please let me know if I should re-open.

@golang golang locked and limited conversation to collaborators May 25, 2019
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@andybons @fraenkel @gopherbot @jeffkayser2