"验证码识别"用英文怎么说

recognition of Identification Code
ID Cord recognizing

Authentication Code----验证码识别
More powerful (更强大)-- microsoft activation codes, certificate authentication code, company authentication code.

Usually, they ask you "what is your Authentication Code (验证码识别)?"
When they want to make sure it is true.

verification code---验证码识别
The Card Security Code--信用卡安全码.
A verifaction code is a three or four digit number printed on the credit card.

Identification code ---验证码识别
Driver license,passport, student ID. 身分代码

verification number (code)

Identification code