OPA | Efficient MPC via Program Analysis : A Framework

by ishaq Java Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | OPA Summary

OPA is a Java library typically used in Framework applications. OPA has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. However OPA build file is not available. You can download it from GitHub.

This repo contains companinion code for the ACM CCS'19 paper Efficient MPC via Program Analysis: A Framework for Efficient Optimal Mixing.

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Quality

Security

License

Reuse

Support

OPA has a low active ecosystem.

It has 2 star(s) with 0 fork(s). There are 4 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 2 have been closed. On average issues are closed in 11 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of OPA is current.

Quality

OPA has 0 bugs and 0 code smells.

Security

OPA has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

OPA code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

OPA is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

OPA releases are not available. You will need to build from source code and install.

OPA has no build file. You will be need to create the build yourself to build the component from source.

Installation instructions are not available. Examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed OPA and discovered the below as its top functions. This is intended to give you an instant insight into OPA implemented functionality, and help decide if they suit your requirements.

Transform method body
Returns the concrete value of the given symbolic value
Get all the local variables for a given value
Collects array definitions for array definition
Gathers information about a body
Translates an assign statement to an assignment
Compares two nodes

Get all kandi verified functions for this library.

OPA Key Features

No Key Features are available at this moment for OPA.

OPA Examples and Code Snippets

No Code Snippets are available at this moment for OPA.

Community Discussions

Trending Discussions on OPA

How to I combine the results of multiple rules

Will other rule results impact the correctness of the policy?

I mistakenly hid my calendar how to recover

How to assign unique key with reference with another dataframe values in pandas?

PyTorch cannot handle complex tensor on GPU, but works on CPU

Has anyone installed OPA (open policy agent) Docker Container in Azure App Services?

OPA/rego result is true even if a comparison evaluates to false

What is the difference between Assignment(=) operator and Equality(==) operator in OPA rule body

Open Policy Agent - Authorizing READ on a list of data

REGO how to get object (map) keys that match a pattern

QUESTION

How to I combine the results of multiple rules

Asked 2022-Apr-03 at 14:38

I have 3 roles and I am trying to return what actions a user can do based on the assigned roles.

Playground: https://play.openpolicyagent.org/p/5gN7ObojXh

The first part should check if the object being processed is in a list, and then if the role(s) return any actions.

I'm very new to OPA and Rego and I am finding it to be very confusing when anything more than simple comparisons are required.

...

ANSWER

Answered 2022-Apr-03 at 14:38

Rules in OPA are either complete or partial. Complete rules are those that evaluate to a single value, and as such will fail if evalutated to different, conflicting values — e.g. a boolean "allow" rule can't be both true and false.

Partial rules either return sets or objects, and are built incrementally by evaluating each rule with the same name and adding the result to the set/object produced by the rule.

Example policy using a partial rule to build a set might look something like this:

Source https://stackoverflow.com/questions/71722040

QUESTION

Will other rule results impact the correctness of the policy?

Asked 2022-Mar-25 at 21:16

I am working on a rego policy that has multiple conditions. Each condition needs to make a call to the same endpoint of a REST api.

I have managed to retain the result of the service call as a result of another rule.

The result of the Evaluate Package command (VS Code with OPA extension) on the policy looks like this now:

[ [ { "allow": false, "someProp": [ "N/A" ] } ] ]

Will this affect the correctness of the policy once it gets deployed to the server?

EDIT

Until my changes, the policy only returned allow.

...

ANSWER

Answered 2022-Mar-25 at 21:16

The "evaluate package" feature of the VS Code plugin does pretty much just that :) i.e. it evaluates the whole package including all rules. You'll see the same default behavior in the Rego Playground, since it's a pretty good way of learning what's going on to see what all rules evaluate to.

When running OPA as a server (or by all means, opa eval), you'll commonly query only the specific rule you're interested in, so if in your case you had defined your policy in a package called mypolicy a request to the OPA REST API might be sent to the /v1/data/mypolicy/allow endpoint to evaluate only the allow rule rathe than the whole package (which could be queried at /v1/data/mypolicy.

Source https://stackoverflow.com/questions/71620862

QUESTION

I mistakenly hid my calendar how to recover

Asked 2022-Mar-24 at 16:40

I ran the following script to hide folders in outlook and I mistakenly hide my calendar

...

ANSWER

Answered 2022-Mar-24 at 16:40

You can fix a problem like that without a script using OutlookSpy (I am its author) - click IMsgStore button, click "Open Folder", select the folder to open, double click the PR_ATTR_HIDDEN property to edit.

Source https://stackoverflow.com/questions/71591657

QUESTION

How to assign unique key with reference with another dataframe values in pandas?

Asked 2022-Mar-22 at 07:39

I want to create column which take reference from df1 and map to df2. df1:

...

ANSWER

Answered 2022-Mar-22 at 07:39

You need to use a loop here. You can take advantage of the set/frozenset methods:

Source https://stackoverflow.com/questions/71567991

QUESTION

PyTorch cannot handle complex tensor on GPU, but works on CPU

Asked 2022-Mar-15 at 19:05

I am using PyTorch to simulate NNs on a quantum computer, and therefore I have to use tensors with ComplexFloatTensor datatypes. When I run this line of code on GPU:

...

ANSWER

Answered 2022-Mar-15 at 19:05

I figured out the answer to this question myself in the meantime. As it turns out, my GPU simply ran out of memory.

For some reason, Google Colab showed this error correctly (see above), while my own GPU showed this weird CUBLAS_STATUS_NOT_SUPPORTED error, instead of directly telling me that it is a memory issue.

Source https://stackoverflow.com/questions/70689874

QUESTION

Has anyone installed OPA (open policy agent) Docker Container in Azure App Services?

Asked 2022-Mar-11 at 01:18

Has anyone installed 'openpolicyagent/opa' as a docker image deployment in Azure App Service successfully? If yes can you please share how you did this? I attempted to do this with the startup command 'docker run -it --rm -p 8181:8181 openpolicyagent/opa run --server --addr :8181' and without a startup command.

Both effectively produce the same error which is the site fails to start...

/home/LogFiles/2022_03_10_pl0sdlwk00001X_docker.log
2022-03-10T22:39:28.658Z INFO - Pull Image successful, Time taken: 0 Minutes and 0 Seconds 2022-03-10T22:39:28.668Z INFO - Starting container for site 2022-03-10T22:39:28.669Z INFO - docker run -d -p 80:80 --name opa-policy-server_0_51a5bbcf -e WEBSITES_ENABLE_APP_SERVICE_STORAGE=false -e WEBSITE_SITE_NAME=opa-policy-server -e WEBSITE_AUTH_ENABLED=False -e PORT=80 -e WEBSITE_ROLE_INSTANCE_ID=0 -e WEBSITE_HOSTNAME= -e WEBSITE_INSTANCE_ID=f6284c65c14198cd70b55d3c9c413d8fa5047ec06e41a24daf1e4ba58ad6479f openpolicyagent/opa:latest

2022-03-10T22:39:28.670Z INFO - Logging is not enabled for this container. Please use https://aka.ms/linux-diagnostics to enable logging to see container logs here. 2022-03-10T22:39:31.463Z INFO - Initiating warmup request to container dd-opa-policy-server_0_51a5bbcf for site opa-policy-server 2022-03-10T22:39:31.477Z ERROR - Container dd-opa-policy-server_0_51a5bbcf for site opa-policy-server has exited, failing site start 2022-03-10T22:39:31.483Z ERROR - Container dd-opa-policy-server_0_51a5bbcf didn't respond to HTTP pings on port: 80, failing site start. See container logs for debugging. 2022-03-10T22:39:31.487Z INFO - Stopping site opa-policy-server because it failed during startup.

...

ANSWER

Answered 2022-Mar-11 at 01:18

When creating the App Service, in the Docker tab, use the following settings:

Image and tag: openpolicyagent/opa
Startup command: run --server --addr:80

If you want to use a port different than the default port 80, lets say 8181, make sure to add this application setting:

Source https://stackoverflow.com/questions/71431673

QUESTION

OPA/rego result is true even if a comparison evaluates to false

Asked 2022-Jan-21 at 21:58

I just started to use OPA, so there is a high chance I'm doing something wrong.

I have the following input:

...

ANSWER

Answered 2022-Jan-21 at 21:58

OK,

thanks to this this I've figured it out.

That's how solved it:

Source https://stackoverflow.com/questions/70807765

QUESTION

What is the difference between Assignment(=) operator and Equality(==) operator in OPA rule body

Asked 2022-Jan-19 at 11:25

In OPA documentation https://www.openpolicyagent.org/docs/latest/policy-testing/ there is a policy definition given like below:

...

ANSWER

Answered 2022-Jan-19 at 11:25

The assignment operator in Rego is :=, == is for comparison, and the = operator is for unification. There's a section describing the differences in the docs, but simply put, unification combines assignment and comparison, so in your example, given that input.path has two elements, the second elements value will be assigned to profile_id.

The policy could be written to split comparsion and assignment if you wanted:

Source https://stackoverflow.com/questions/70765980

QUESTION

Open Policy Agent - Authorizing READ on a list of data

Asked 2022-Jan-17 at 11:34

Problem

We've been using OPA to do data authorization of our REST HTTP APIs. We secure our APIs as such

...

ANSWER

Answered 2022-Jan-17 at 11:34

I'm not sure I followed entirely, but given that you have data looking something like the below:

Source https://stackoverflow.com/questions/70722504

QUESTION

REGO how to get object (map) keys that match a pattern

Asked 2022-Jan-14 at 23:22

Working with Rego, the Open Policy Agent (OPA) "rules" language, and given the following data:

...

ANSWER

Answered 2022-Jan-14 at 18:24

Comprehension format

Source https://stackoverflow.com/questions/70714687

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install OPA

You can download it from GitHub.
You can use OPA like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the OPA component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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