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2017年09月14日16:16

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Need-to-Know Only: Use Encryption to Make Data Meaningless to Prying Eyes

Need-to-Know Only: Use Encryption to Make Data Meaningless to Prying Eyes

August 29, 2017 | By Rick Robinson


<Fundamental Encryption Techniques>

If we cannot encrypt this data, how can we keep it secure? With the right set of capabilities, you can protect specific types of data using the same cryptographic principles in a way that does not interfere with business applications. This enables you to employ one of the following three fundamental encryption techniques.

#1
Format-preserving encryption allows data to be truly encrypted but maintain the same format as the original data set. The process takes a little longer because the enciphered data needs to retain formats.

#2
Tokenization has no relationship at all to the original data. The token is a replacement for the original data, but is not derived from it. The only way to reverse tokenized data is to look up what the original data was using the token.

#3
Redaction is a method in which many characters are replaced with the same letter. For example, a credit card number may by represented by an asterisk, save for the last four digits. You cannot recover the credit card number from a figure such as “**** **** **** 1234,” but you can have high level of confidence that you are comparing the correct card number by cross-referencing the last four digits.


https://securityintelligence.com/need-to-know-only-use-encryption-to-make-data-meaningless-to-prying-eyes/?cm_mmc=PSocial_Twitter-_-Security_Identify%20and%20protect%20sensitive%20data-_-WW_WW-_-22405705_Clicktracker&cm_mmca1=000000MU&cm_mmca2=10000201&cm_mmca4=22405705&cm_mmca5=47575563&cm_mmca6=fda9265b-bf34-43c5-affa-80c7b71fb063&cvosrc=social%20network%20paid.twitter.Encryption%20Engagement%20Blog%20Influencers%20Passwords_SD%20Behav_DesktopMobileTablet_1x1&cvo_campaign=000000MU&cvo_pid=22405705
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