Vundle不认证github

我有这个~/.vimrc。

set nocompatible              " be iMproved, required
filetype off                  " required

set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
Plugin 'gmarik/Vundle.vim'
Plugin 'crooloose/nerdtree.git'
Plugin 'tomasr/molokai'
Plugin 'kien/ctrlp'
Plugin 'bling/vim-airline'
syntax enable
colorscheme molokai

漂亮，直截了当。我有几个我想使用Vundle安装的插件，但是每执行一次:PluginInstall它都会提示我输入github用户名和密码。我知道我的用户名和密码正确，但是始终无法通过身份验证。我在github btw上有两种方式身份验证。我认为没关系。但是，出现以下错误。

[2014-09-19 23:18:14] 
[2014-09-19 23:18:14] Plugin crooloose/nerdtree.git
[2014-09-19 23:18:14] $ git clone --recursive 'https://github.com/crooloose/nerdtree.git' '/home/shriek/.vim/bundle/nerdtree'
[2014-09-19 23:18:14] > Cloning into '/home/shriek/.vim/bundle/nerdtree'...
[2014-09-19 23:18:14] > remote: Invalid username or password.
[2014-09-19 23:18:14] > fatal: Authentication failed for 'https://github.com/crooloose/nerdtree.git/'
[2014-09-19 23:18:14] > 
[2014-09-19 23:19:51] 
[2014-09-19 23:19:51] Plugin kien/ctrlp
[2014-09-19 23:19:51] $ git clone --recursive 'https://github.com/kien/ctrlp.git' '/home/shriek/.vim/bundle/ctrlp'
[2014-09-19 23:19:51] > Cloning into '/home/shriek/.vim/bundle/ctrlp'...
[2014-09-19 23:19:51] > remote: Invalid username or password.
[2014-09-19 23:19:51] > fatal: Authentication failed for 'https://github.com/kien/ctrlp.git/'
[2014-09-19 23:19:51] > 
[2014-09-19 23:19:52] 
[2014-09-19 23:19:52] Helptags:
[2014-09-19 23:19:52] :helptags /home/shriek/.vim/bundle/Vundle.vim/doc
[2014-09-19 23:19:52] :helptags /home/shriek/.vim/bundle/vim-airline/doc
[2014-09-19 23:19:52] Helptags: 2 plugins processed

我甚至尝试连接到GitHub上做ssh -T [email protected]它说Hi shriek! You've successfully authenticated, but GitHub does not provide shell access.

所以，我有点迷茫。救命？