package selfupdate import ( "bytes" "fmt" "golang.org/x/crypto/openpgp" ) var key = []byte(` -----BEGIN PGP PUBLIC KEY BLOCK----- mQINBFRVIb8BEADUex/4rH/aeR3CN044zqFD45SKUh/8pC44Bw85iRSSE9xEZsLB LUF6ZtT3HNXfxh7TRpTeHnXABnr8EtNwsmMjItDaSClf5jM0qKVfRIHBZ2N539oF lHiCEsg+Q6kJEXHSbqder21goihfcjJBVKFX6ULgCbymOu03fzbhe/m5R57gDU2H +gcgoI6a5ib11oq2pRdbC9NkEg7YXHbMlZ5s6fIAgklyDQqAlH8QNiRYcyC/4NrG WXLwUTDssFn3hoJlAxZwj+dRZAit6Hgj2US05Ra/gJqZWzKyE2ywglO9sc2wD3sE 0Ti1tS9VJr7WNcZzVMXj1qBIlBkl4/E5tIiNEZ5BrAhmdSYbZvP2cb6RFn5clKh9 i+XpeBIGiuAUgXTcV/+OBHjLq+Aeastktk7zaZ9QQoRMHksG02hPI7Z7iIRrhhgD xsM2XAkwZXp21lpZtkEGYc2qo5ddu+qdZ1tHf5HqJ4JHj2hoRdr4nL6cwA8TlCSc 9PIifkKWVhMSEnkF2PXi+FZqkPnt1sO27Xt5i3BuaWmWig6gB0qh+7sW4o371MpZ 8SPKZgoFA5kJlqkOoSwZyY4M7TRR+GbZuZARUS+BTLsAeJ5Gik9Lhe1saE5UGncf wYmh+sOi4vRDyoSkPthnBvvlmHp7yo7MiNAUPWHiuv2FWU0rPwB05NOinQARAQAB tChBbGV4YW5kZXIgTmV1bWFubiA8YWxleGFuZGVyQGJ1bXBlcm4uZGU+iQI6BBMB CAAkAhsDBQsJCAcDBRUKCQgLBRYCAwEAAh4BAheABQJUVSmNAhkBAAoJEJGmhovT 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When the signature matches, GPGVerify // returns true and a nil error. func GPGVerify(data, sig []byte) (ok bool, err error) { keyring, err := openpgp.ReadArmoredKeyRing(bytes.NewReader(key)) if err != nil { fmt.Printf("reading keyring failed") return false, err } _, err = openpgp.CheckArmoredDetachedSignature(keyring, bytes.NewReader(data), bytes.NewReader(sig)) if err != nil { return false, err } return true, nil }