x/crypto/openpgp: readMessage not detecting key (when created with GPG Suite)

[CurralesDragon]

Please answer these questions before submitting your issue. Thanks!

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

go version go1.8.3 darwin/amd64

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

GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/Nic/go"
GORACE=""
GOROOT="/usr/local/go"
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GCCGO="gccgo"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/qm/560cwsv13md0bc27cnbzz9qr0000gn/T/go-build407708586=/tmp/go-build -gno-record-gcc-switches -fno-common"
CXX="clang++"
CGO_ENABLED="1"
PKG_CONFIG="pkg-config"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"

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.

Decrypting a PGP MESSAGE that was created using GPG Suite
https://gpgtools.org

What did you expect to see?

Expected the decryption to be successful

What did you see instead?

Key incorrect error

More details:

If i encrypt a string using the public and private key, it encrypts and decrypts fine.
When i try to decrypt an encrypted message created by GPG Suite (Max OS X) using the same public and private key, i get an "Incorrect Key" error.
I am able to decrypt the message successfully using GPG Suite,
It seems that the error is proceed by this line:
if len(candidates) == 0 && len(symKeys) == 0 { return nil, errors.ErrKeyIncorrect }

So it seems that it cannot find the candidate key within the key entity.
Does openpgp behave differently than other PGP encryption software?
What would cause this problem?

[FiloSottile]

Per the accepted #44226 proposal and due to lack of maintenance, the golang.org/x/crypto/openpgp package is now frozen and deprecated. No new changes will be accepted except for security fixes. The package will not be removed.

If this is a security issue, please email security@golang.org and we will assess it and provide a fix.

If you're looking for alternatives, consider the crypto/ed25519 package for simple signatures, golang.org/x/mod/sumdb/note for inline signatures, or filippo.io/age for encryption. You can read a summary of OpenPGP issues and alternatives here.

If you are required to interoperate with OpenPGP systems and need a maintained package, we suggest considering one of multiple community forks of golang.org/x/crypto/openpgp. We don't endorse any specific one.