标记化和掩码之间的区别

1. 掩蔽：
顾名思义，掩码是用空值或常量值替换真实数据的过程。它被认为本质上是永久性的标记化。在这种情况下，敏感信息被一些与原始数据格式相同的随机字符替换，也没有任何检索原始值的机制。基本上有两种类型的屏蔽，即静态数据屏蔽 (SDM) 和动态数据屏蔽 (DDM)。

2. 代币化：
顾名思义，令牌化是用随机生成的字母数字值(称为令牌)替换原始值的过程。每当用户应用程序需要原始数据时，该系统就会在令牌数据库中查找令牌值并检索它。它是用于保持数据安全的最古老的技术之一。在这种情况下，令牌在创建它们并将它们链接到其他数据的系统之外没有任何意义。

标记化和掩码之间的区别：

Masking	Tokenization
It is a process of applying mask to a value.	It is a process of replacing sensitive data with non-sensitive data.
It simply ensures efficient use of masked data for analysis without fear of leaking private information.	It simply ensures correct formatting and transmission of data thus making it less vulnerable to cyberattacks.
It is generally used to secure structured and unstructured fields in both non-production and production environments such as database backups, data mining, etc.	It is generally used to secure credit card number or sensitive information in payment processing systems, customer service databases, and other structured data environments.
It always preserves format but there are some chances of reidentification risk.	It always preserves format of data and maintain high security.
It is an irreversible process i.e.; masked data cannot be retrieved back to original one.	It is a reversible process i.e.; tokenized data can be retrieved back to original one.
It is easier for one to exchange masked data with third parties as they cannot view original data.	It is difficult for one to exchange data with third parties because they can have access to token database.
It is used to secure data in use.	It is used to secure data at rest and data in motion.
It normally protects sensitive data from being exposed to individuals who are not authorized or do not have access to view it.	It normally creates surrogate value that can matched back to original string using database.