标题:SecureCRT对付TOTP两步认证 出处:Felix021 时间:Mon, 09 Aug 2021 19:10:28 +0000 作者:felix021 地址:https://www.felix021.com/blog/read.php?2236 内容: 遥想第一次听说Google Authenticator已经是 7年前的事情 了,那时候它还托管在 Google Code 上(缅怀)。 说来惭愧,那会儿我就已经用着 SecureCRT 好几年了,就在D厂的时候大家都在用的那个D版。今年终于咬牙买了个正版,突然意识到它的Logon Script可以用来搞这个两步认证,上网搜了一下,已经有大神写好放在 gist 上了,于是抄了一把,略作改动,贴在这里。 注意: 1. 记得要把 SecureCRT session option里 Login Actions → "Display logon prompts in terminal window" 勾上。 2. 这个版本是windows版用的,保存成py文件;用mac版的同学,要看下scrt的脚本引擎是py2还是py3,py3的话,得用原作者这个 gist 里的另一个版本 # $language = "python" # $interface = "1.0" import hmac, base64, struct, hashlib, time, json, os TOTP_KEY = 'YOUR_TOTP_KEY' YOUR_PASSWD = 'PASSWORD' def get_hotp_token(secret, intervals_no): """This is where the magic happens.""" key = base64.b32decode(normalize(secret), True) # True is to fold lower into uppercase msg = struct.pack(">Q", intervals_no) h = hmac.new(key, msg, hashlib.sha1).digest() o = ord(h[19]) & 15 h = str((struct.unpack(">I", h[o:o+4])[0] & 0x7fffffff) % 1000000) return prefix0(h) def get_totp_token(secret): """The TOTP token is just a HOTP token seeded with every 30 seconds.""" return get_hotp_token(secret, intervals_no=int(time.time())//30) def normalize(key): """Normalizes secret by removing spaces and padding with = to a multiple of 8""" k2 = key.strip().replace(' ','') # k2 = k2.upper() # skipped b/c b32decode has a foldcase argument if len(k2)%8 != 0: k2 += '='*(8-len(k2)%8) return k2 def prefix0(h): """Prefixes code with leading zeros if missing.""" if len(h) < 6: h = '0'*(6-len(h)) + h return h def main(): tab = crt.GetScriptTab() if tab.Session.Connected != True: crt.Dialog.MessageBox("Session Not Connected") return tab.Screen.Synchronous = True tab.Screen.WaitForStrings(['[MFA auth]:']) vc = get_totp_token(TOTP_KEY) tab.Screen.Send("{vc}\r\n".format(vc=vc)) tab.Screen.WaitForStrings(['Opt>']) tab.Screen.Send("relay2\r\n") if tab.Screen.WaitForString('password:', 1): tab.Screen.Send("{pwd}\r\n".format(pwd=YOUR_PASSWD)) #鄙厂的relay后面还有个relay return main() REF: https://gist.github.com/hex-ci/a8c58ac049c4b3a05ef2d6f9d98193c2 Generated by Bo-blog 2.1.0