GitHub user moresandeep opened a pull request:
https://github.com/apache/orc/pull/201
Orc 250 - Create sha256 mask
Masking strategy that masks String, Varchar, Char and Binary types
as SHA 256 hash.
For String type:
All string type of any length will be converted to 64 length SHA256 hash.
For Varchar type:
For Varchar type, max-length property will be honored i.e.
if the length is less than max-length then the SHA256 hash will be
truncated
to max-length. If max-length is greater than 64 then the output is the
sha256
length, which is 64.
For Char type:
For Char type, the length of mask will always be equal to specified
max-length.
If the given length (max-length) is less than SHA256 hash length (64)
the mask will be truncated.
If the given length (max-length) is greater than SHA256 hash length (64)
then the mask will be padded by blank spaces.
For Binary type:
All Binary type of any length will be converted to 64 length SHA256 hash.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/moresandeep/orc ORC-250_SHA-256
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/orc/pull/201.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #201
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commit b8f4bbed8bab2f209748ce5e94b100b198b5371f
Author: Sandeep More <[email protected]>
Date: 2017-11-09T16:04:30Z
Merge pull request #1 from apache/master
Update from main repo
SHA-256 - Checkpoint 1
commit 877daa94aaf1da0adfbde3a01face2ac7e6b9091
Author: Sandeep More <[email protected]>
Date: 2017-12-05T15:27:51Z
Merge commit 'b8f4bbed8bab2f209748ce5e94b100b198b5371f' into ORC-250_SHA-256
commit e84ab601186145ddb09859715b065e49eb7ddd4d
Author: Sandeep More <[email protected]>
Date: 2017-12-07T14:49:44Z
ORC-250 - Support for sha256 mask
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