Apt support for sha256 checksums

Registered by Michael Vogt

All code in apt that deals with authentication of packages should support sha256 checksums to support better security. Currently only md5 and sha1 are supported by default.

This needs support from soyuz to write out a SHA256 tag in the main Release file.

Blueprint information

Status:
Complete
Approver:
Scott James Remnant (Canonical)
Priority:
Low
Drafter:
Michael Vogt
Direction:
Needs approval
Assignee:
Michael Vogt
Definition:
Approved
Series goal:
Accepted for feisty
Implementation:
Implemented
Milestone target:
None
Started by
Michael Vogt
Completed by
Michael Vogt

Related branches

Sprints

Whiteboard

Declined for discussion, instead sent straight to a release goal.
dholbach: with the additional explanation and the suggestion to do a benchmark, I'm happy enough to set the spec to approved.
mvo: working Implementation (module .dsc format change) at http://people.ubuntu.com/~mvo/bzr/apt/sha256/, waiting for soyuz support (bug #71845)
mvo: implemented now

(?)

Work Items

This blueprint contains Public information 
Everyone can see this information.