If the original text is encrypted using a certain Safe house algorithm and secret key? then after encryption? the result obtained after “addition? subtraction? multiplication? division” and various mathematical calculations? and then decrypted using the encryption algorithm and secret key? the result obtained is the same as the result obtained by directly performing the same mathematical calculation on the plaintext.
In this way Safe house
When C calculates the encrypted individual attributes sent by customer journey mapping: advanced strategies to decipher the customer journey media B? the common attribute characteristics obtained are also encrypted? but they can be directly applied to the selected group after being decrypted at B. In fact? with today’s technology? even decryption is not required? and people can be directly selected? which further improves security.
In this way? advertiser A does not expose his real consumer ID; media B does not reveal the attributes behind these IDs; third party C helps A and B complete data matching and calculates the common characteristics of A’s consumers? but does not know what these previous order judge amy berman jackson characteristics are. As long as C keeps its integrity and does not disclose the encrypted consumer ID given to him by A? the whole process is quite safe.
This is a very typical and
Important application of privacy computing in digital marketing.
— Further optimization of keeping intersection and aero leads data ID confidential —
The above “anonymous secure intersection” requires a lot of “noise” and requires high computing power from the third party.
Moreover? it is necessary to ensure that the third party is honest and trustworthy. Therefore? in practice? this method is not often used. Most of the time? advertisers and media are afraid of trouble? and the media will directly set up a so-called “safe house” in their own servers? and then let this safe house play the role of the third party C above? playing the role of secure intersection or reverse intersection.
