无法从Golang中的iOS解析base64 DER编码的ASN.1公钥

i have a projects in Golang with RSA enryption, so now, i have a Base64 public key format which used for encrypt a message,

i used this code:

publicKeyBase64 = "MIGJAoGBAJJYXgBem1scLKPEjwKrW8+ci3B/YNN3aY2DJ3lc5e2wNc0SmFikDpow1TdYcKl2wdrXX7sMRsyjTk15IECMezyHzaJGQ9TinnkQixJ+YnlNdLC04TNWOg13plyahIXBforYAjYl2wVIA8Yma2bEQFhmAFkEX1A/Q1dIKy6EfQ+xAgMBAAE="
publicKeyBinary, err := base64.StdEncoding.DecodeString(publicKeyBase64)

publicKeyInterface, err := x509.ParsePKIXPublicKey(publicKeyBinary)
    if err != nil {
    fmt.Println("Could not parse DER encoded public key (encryption key)")
    return "","",err
}

publicKey, isRSAPublicKey := publicKeyInterface.(*rsa.PublicKey)
if !isRSAPublicKey {
    fmt.Println("Public key parsed is not an RSA public key")
    return "","",err
}

encryptedMessage, err := rsa.EncryptPKCS1v15(rand.Reader, publicKey, "message")

When i run this code, i got this error:

Could not parse DER encoded public key (encryption key)

asn1: structure error: tags don't match (16 vs {class:0 tag:2 length:129 isCompound:false}) {optional:false explicit:false application:false defaultValue:<nil> tag:<nil> stringType:0 timeType:0 set:false omitEmpty:false} AlgorithmIdentifier @3

The error points to publicKeyInterface, it failed to parse from Base64 decoded format to public Key, What's the problem with my code ?

=======updated=====

my publicKeyBase64 is retrieved from my models with Binary Data type

When i store it in my mongoDB from my Rails API, i receive public_key params as Base64 format, but i decode it to binary and then i stored it with this code

def create
  params = device_params      
  public_key = Base64.decode64 device_params[:public_key]
  #device_params[:public_key] value is "MIGJAoGBAJJYXgBem1scLKPEjwKrW8+ci3B/YNN3aY2DJ3lc5e2wNc0SmFikDpow1TdYcKl2wdrXX7sMRsyjTk15IECMezyHzaJGQ9TinnkQixJ+YnlNdLC04TNWOg13plyahIXBforYAjYl2wVIA8Yma2bEQFhmAFkEX1A/Q1dIKy6EfQ+xAgMBAAE="
  params[:public_key] = BSON::Binary.new(public_key, :generic)
  device = Device.find_or_create_by(id: device_params[:id])

  render_success device.update_attributes(params), device
end

When i use rails code to convert my Base64 public key string using this code, it succeeded:

rsa_public_key = OpenSSL::PKey::RSA.new(Base64.decode64(public_key))

in my iOS app, i use https://github.com/DigitalLeaves/AsymmetricCrypto to generate a public Key using this code:

AsymmetricCryptoManager.sharedInstance.createSecureKeyPair({ (success, error) -> Void in
   if success {
    print("RSA-1024 keypair successfully generated.")
    let publicKey = AsymmetricCryptoManager.sharedInstance.getPublicKeyData()?.base64EncodedString()

    let url = ENV.BASE_URL + "devices"
    let headers = ["Authentication-Token": CurrentUser.getCurrentUser().token] as! HTTPHeaders
    let params = ["device[user_id]": CurrentUser.getCurrentUser().id!, "device[id]": instanceID,"device[token]": fcmToken, "device[os]": "ios", "device[public_key]": publicKey!]

    Alamofire.request(url, method: .post, parameters: params, encoding: URLEncoding.default, headers: headers)
} else { print("An error happened while generating a keypair: \(error)") }
})