Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Adding aasvg diagrams for protocols. #387

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Adding aasvg diagrams for protocols. #387

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
126 changes: 80 additions & 46 deletions draft-irtf-cfrg-voprf.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -660,20 +660,31 @@ and `output` is the OPRF output. After the execution of the protocol, the
client learns `output` and the server learns nothing.
This interaction is shown below.

~~~
Client(input) Server(skS)
-------------------------------------------------------------------
blind, blindedElement = Blind(input)

blindedElement
---------->

evaluatedElement = BlindEvaluate(skS, blindedElement)

evaluatedElement
<----------

output = Finalize(input, blind, evaluatedElement)
~~~ aasvg
+--------+ +--------+
| Client | | Server |
+----+---+ +----+---+
| |
input skS
| |
v v
+-----+---+----------------------------------------+----------------+
|OPRF/ | | |
+---' | | |
|blind, blindedElement = Blind(input) | |
| | | |
| +----------- blindedElement ------------>| |
| | | |
| | evaluatedElement = BlindEvaluate(skS, blindedElement) |
| | | |
| |<--------- evaluatedElement ------------+ |
| | |
|output = Finalize(input, blind, evaluatedElement) |
| | |
+---------+---------------------------------------------------------+
|
v
output
~~~
{: #fig-oprf title="OPRF protocol overview"}

Expand All @@ -684,22 +695,33 @@ the `BlindEvaluate` function is the same key as it used to produce the server's
which the client receives as input to the protocol. This proof does not reveal the server's
private key to the client. This interaction is shown below.

~~~
Client(input, pkS) <---- pkS ------ Server(skS, pkS)
-------------------------------------------------------------------
blind, blindedElement = Blind(input)

blindedElement
---------->

evaluatedElement, proof = BlindEvaluate(skS, pkS,
blindedElement)

evaluatedElement, proof
<----------

output = Finalize(input, blind, evaluatedElement,
blindedElement, pkS, proof)
~~~ aasvg
+--------+ +--------+
| Client | | Server |
+----+---+ +----+---+
| |
input, pkS <------ pkS --------- skS, pkS
| |
v v
+------+--+----------------------------------------+----------------+
|VOPRF/ | | |
+----' | | |
|blind, blindedElement = Blind(input) | |
| | | |
| +----------- blindedElement ------------>| |
| | | |
| | evaluatedElement, proof = BlindEvaluate(skS, pkS, |
| | blindedElement) |
| | | |
| |<------ evaluatedElement, proof --------+ |
| | |
|output = Finalize(input, blind, evaluatedElement, |
| blindedElement, pkS, proof) |
| | |
+---------+---------------------------------------------------------+
|
v
output
~~~
{: #fig-voprf title="VOPRF protocol overview with additional proof"}

Expand All @@ -708,22 +730,34 @@ server can additionally provide a public input `info` that is used in computing
the pseudorandom function. That is, the client and server interact to compute
`output = F(skS, input, info)` as is shown below.

~~~
Client(input, pkS, info) <---- pkS ------ Server(skS, pkS, info)
-------------------------------------------------------------------
blind, blindedElement, tweakedKey = Blind(input, info, pkS)

blindedElement
---------->

evaluatedElement, proof = BlindEvaluate(skS, blindedElement,
info)

evaluatedElement, proof
<----------

output = Finalize(input, blind, evaluatedElement,
blindedElement, proof, info, tweakedKey)
~~~ aasvg
+--------+ +--------+
| Client | | Server |
+----+---+ +----+---+
| |
input, pkS, info <------ pkS --------- skS, pkS, info
| |
v v
+------+--+----------------------------------------+----------------+
|POPRF/ | | |
+----' | | |
|blind, blindedElement, tweakedKey = Blind(input, | |
| info, pkS) | |
| | | |
| +----------- blindedElement ------------>| |
| | | |
| | evaluatedElement, proof = BlindEvaluate(skS, |
| | blindedElement, info) |
| | | |
| |<------ evaluatedElement, proof --------+ |
| | |
|output = Finalize(input, blind, evaluatedElement, |
| blindedElement, proof, info, tweakedKey) |
| | |
+---------+---------------------------------------------------------+
|
v
output
~~~
{: #fig-poprf title="POPRF protocol overview with additional public input"}

Expand Down
Loading