RE: Replace anonymized data in string
> On 12 Nov 2021, at 15:12, Patrick FICHE wrote: > Is there any way to do this ? There was a presentation on the subject of anonymization and data masking at Fosdem PGDay 2019, maybe the slides from there can give any insights? https://www.postgresql.eu/events/fosdem2019/schedule/session/2287-anonymization-and-data-masking-with-postgresql/ -- Thanks a lot for your answer. This is a very good presentation for anonymization technics. Unfortunately, my data has been already anonymized and I'm trying to random the anonymized part... which is a bit different from what I could find here 😊
Re: Replace anonymized data in string
On 11/12/21 7:12 AM, Patrick FICHE wrote: Hi Team, I have some data that has been anonymized and I would like to generate some test data from this. In some way, I would like to deanonymize this data with random data. For example, phone numbers have been anonymized with changing the 5 right digits with the 8 digit (preserving length). Applying this, the number 390694802756 was changed to 390694808. I would like to get random digits at the end of the phone number knowing that anonymized data can be a variable length. So, I would like to change every sequence (at least 2) of 8 by random value of same length (I don’t worry if phone number contains 88 in the middle and this sequence is changed to random data)… I tried to do this with replace / regexp_replace functions but could not achieve what I wanted to do. I don’t want these digits to be changed with a single one (8 by 11 or 9 but something like 42384)… Ideally, the new string would be different if multiple sequences of 8 appear in a string and would be different from one record to the other when applied to a full table… Is there any way to do this ? Thanks, Patrick Usual trick it to select floor(random()*10);
Re: Replace anonymized data in string
> On 12 Nov 2021, at 15:12, Patrick FICHE wrote: > Is there any way to do this ? There was a presentation on the subject of anonymization and data masking at Fosdem PGDay 2019, maybe the slides from there can give any insights? https://www.postgresql.eu/events/fosdem2019/schedule/session/2287-anonymization-and-data-masking-with-postgresql/ -- Daniel Gustafsson https://vmware.com/
Replace anonymized data in string
Hi Team, I have some data that has been anonymized and I would like to generate some test data from this. In some way, I would like to deanonymize this data with random data. For example, phone numbers have been anonymized with changing the 5 right digits with the 8 digit (preserving length). Applying this, the number 390694802756 was changed to 390694808. I would like to get random digits at the end of the phone number knowing that anonymized data can be a variable length. So, I would like to change every sequence (at least 2) of 8 by random value of same length (I don't worry if phone number contains 88 in the middle and this sequence is changed to random data)... I tried to do this with replace / regexp_replace functions but could not achieve what I wanted to do. I don't want these digits to be changed with a single one (8 by 11 or 9 but something like 42384)... Ideally, the new string would be different if multiple sequences of 8 appear in a string and would be different from one record to the other when applied to a full table... Is there any way to do this ? Thanks, Patrick
