bless | SSH Certificate Authority that runs as a AWS Lambda function | Identity Management library

 by   Netflix Python Version: 0.4.0 License: Apache-2.0

kandi X-RAY | bless Summary

kandi X-RAY | bless Summary

bless is a Python library typically used in Security, Identity Management applications. bless has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can download it from GitHub.

BLESS is an SSH Certificate Authority that runs as an AWS Lambda function and is used to sign SSH public keys. SSH Certificates are an excellent way to authorize users to access a particular SSH host, as they can be restricted for a single use case, and can be short lived. Instead of managing the authorized_keys of a host, or controlling who has access to SSH Private Keys, hosts just need to be configured to trust an SSH CA. BLESS should be run as an AWS Lambda in an isolated AWS account. Because BLESS needs access to a private key which is trusted by your hosts, an isolated AWS account helps restrict who can access that private key, or modify the BLESS code you are running. AWS Lambda functions can use an AWS IAM Policy to limit which IAM Roles can invoke the Lambda Function. If properly configured, you can restrict which IAM Roles can request SSH Certificates. For example, your SSH Bastion (aka SSH Jump Host) can run with the only IAM Role with access to invoke a BLESS Lambda Function configured with the SSH CA key trusted by the instances accessible to that SSH Bastion.
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    Quality
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        License
          Reuse

            kandi-support Support

              bless has a highly active ecosystem.
              It has 2686 star(s) with 228 fork(s). There are 380 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 11 open issues and 27 have been closed. On average issues are closed in 124 days. There are 6 open pull requests and 0 closed requests.
              OutlinedDot
              It has a negative sentiment in the developer community.
              The latest version of bless is 0.4.0

            kandi-Quality Quality

              bless has 0 bugs and 0 code smells.

            kandi-Security Security

              bless has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              bless code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              bless is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              bless releases are available to install and integrate.
              Build file is available. You can build the component from source.
              Installation instructions, examples and code snippets are available.
              bless saves you 1028 person hours of effort in developing the same functionality from scratch.
              It has 2333 lines of code, 198 functions and 54 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed bless and discovered the below as its top functions. This is intended to give you an instant insight into bless implemented functionality, and help decide if they suit your requirements.
            • Generate the SSH signature key
            • Return the length of the hexadecimal characters
            • Packs the given MPint value into a byte string
            • Pack a string into a bytes object
            • Serializes the SSH public key
            • Serialize the SSH public key
            Get all kandi verified functions for this library.

            bless Key Features

            No Key Features are available at this moment for bless.

            bless Examples and Code Snippets

            BLESS: Bottom-up leverage score sampling,Usage,References
            Pythondot img1Lines of Code : 14dot img1no licencesLicense : No License
            copy iconCopy
            @inproceedings{rudi2018fast,
              title={On fast leverage score sampling and optimal learning},
              author={Rudi, Alessandro and Calandriello, Daniele and Carratino, Luigi and Rosasco, Lorenzo},
              booktitle={Advances in Neural Information Processing Syste  
            BLESS: Bottom-up leverage score sampling,Usage,Usage Example
            Pythondot img2Lines of Code : 11dot img2no licencesLicense : No License
            copy iconCopy
                from sklearn.gaussian_process.kernels import RBF
                X_test = np.random.randn(30000, 10)
                r = np.random.RandomState(42)
            
                D_test = bless(X_test, RBF(length_scale=10), 10, 10, r, 10, force_cpu=True)
            
                try:
                    import cupy
                    D_te  
            BLESS: Bottom-up leverage score sampling,Usage
            Pythondot img3Lines of Code : 4dot img3no licencesLicense : No License
            copy iconCopy
            bless(X, similarity_func, lam_final=2.0, qbar=2, random_state=None, H=None, force_cpu=False, verbose=True)
            
            get_nystrom_embeddings(X, centers_dict, similarity_func, force_cpu=False)
            
            get_nystrom_matrix_approx(X, centers_dict, similarity_func, force_c  

            Community Discussions

            QUESTION

            Deflate floating point data bytes encoded as Base64
            Asked 2022-Apr-02 at 06:07

            Good Day!

            I would like ask for your help on decompressing String back to its original data.

            Here's the document that was sent to me by the provider.

            Data description

            First part describes the threshold data.

            All data are managed as Little Endian IEEE 754 single precision floating numbers. Their binary representation are (represented in hexadecimal data) :

            Compressed data (zip) Threshold binary data are compressed using the ‘deflate’ algorithm. Each compression result is given here (represented in hexadecimal data) :

            Thresholds: $63 00 03 05 47 24 DA 81 81 A1 C1 9E 81 61 01 98 06 00

            Encoded data (base64) Threshold compressed data are encoded in ‘base64’ to be transmitted as ASCII characters. Each conversion results is given here (represented in hexadecimal data) :

            Thresholds: $59 77 41 44 42 55 63 6B 32 6F 47 42 6F 63 47 65 67 57 45 42 6D 41 59 41

            Here is the output frame (Manufacturer frame content) The thresholds data are then sent using their corresponding ASCII character Here is the resulting Histogram ASTM frame sent :

            YwADBUck2oGBocGegWEBmAYA

            As explained in above details, what I want to do is backwards.

            The packets that we received is

            YwADBUck2oGBocGegWEBmAYA

            then from there convert it to Hex value Base64 which is the output is.

            Thresholds: $59 77 41 44 42 55 63 6B 32 6F 47 42 6F 63 47 65 67 57 45 42 6D 41 59 41

            This first part was already been implemented using this line of codes.

            ...

            ANSWER

            Answered 2022-Mar-23 at 16:03

            Your input string is a base64 encoded array of bytes, representing a compressed (deflated) sequence of floating point values (float / Single).

            An example:

            Source https://stackoverflow.com/questions/71567706

            QUESTION

            How to select a query from mysql database based on a certain condition
            Asked 2022-Mar-18 at 17:48

            I want to answer the following question using the below Mysql tables.

            1. How many days were the user active on avg. (had an action) in the last week?

            2. I want to Display user Avg by day, where ((user action is not 0)/unique day) in the last 7 days.

            0 means the user is not active and 1 means active.

            I am still a newbie in SQL and here is what I have tried so far. I am not really sure of my answers.

            ...

            ANSWER

            Answered 2022-Mar-18 at 17:48
            Average of last week

            Since there are 7 days, you can divide the count by 7

            Source https://stackoverflow.com/questions/71530667

            QUESTION

            terminal board for a game
            Asked 2022-Mar-18 at 12:13

            I'm making a game as a university project. I want to make a board so that the players can move.

            The board should look like this, this one is made with colored, but it won't work for my purpose since movements and players cannot be implemented.

            ...

            ANSWER

            Answered 2022-Mar-18 at 02:39

            I've never used blessed before, so I'll give you a partial solution.

            First of all, you should to know there's various examples in their repo that you can use to learn more about this package. Here is one: https://github.com/jquast/blessed/blob/master/bin/worms.py

            So, after mentioning that, I leave you with a code example that might help. I put some comments on it because I think they can be useful.

            Source https://stackoverflow.com/questions/71520280

            QUESTION

            How to iterate through an array of hashes inside an object with perl
            Asked 2022-Mar-09 at 19:34

            I am trying to iterate through an array of hashes stored as the '_skills' attribute of a 'Person' object, and having trouble.

            test1.pl

            ...

            ANSWER

            Answered 2022-Mar-09 at 19:34

            You are passing three arguments to new plus the invocant. The last is a reference to an array. That means that @skills ends up with a single element whose value is that reference.

            Source https://stackoverflow.com/questions/71414292

            QUESTION

            Import symbols from package defined in the same file
            Asked 2022-Feb-28 at 15:15

            I hoped I could do something like this:

            p.pl :

            ...

            ANSWER

            Answered 2022-Feb-28 at 15:15

            The problem is that you call

            Source https://stackoverflow.com/questions/71296586

            QUESTION

            Monkeypatching a Python class
            Asked 2022-Feb-21 at 17:49

            I would like to understand how Python classes and objects work. In Perl it is pretty simple, each sub definied in a package can be called as static, class or object method (CLASS::func, CLASS->func or $obj->func). For the first glance, a Python class looks like a Perl class with a bless-ed HASH (The __dict__ attribute in Python class). But in Python I'm a little bit confused. So, to understand better, I have tried to monkey-patch an empty class, adding 3 attributes which behave exactly like a static, class and object method, but I could not get it.

            At first I have created the normal class to get the base result:

            ...

            ANSWER

            Answered 2022-Feb-20 at 20:33

            You can monkey-patch methods onto a class, but it’s done like this:

            Source https://stackoverflow.com/questions/71197957

            QUESTION

            Why are these values sometimes undefined?
            Asked 2022-Feb-10 at 19:35

            I'm fairly new to Perl and am working on a project to further my learning. It's a little console word game (translated from a python project of mine), and part of the logic requires to draw a random letter from a pool that is 98 characters long.

            Running the functions individually, I've never had an issue, but when I try to loop it into a list it occasionally fails. Running with warnings on tells me that some of these are undefined, but I can't for the life of me figure out why. Here's an MRE:

            ...

            ANSWER

            Answered 2022-Feb-10 at 18:25

            The error comes from using a hash ref where you should have an array ref:

            Source https://stackoverflow.com/questions/71069644

            QUESTION

            How does Haskell pick a type for an ambiguous expression
            Asked 2022-Feb-06 at 19:53

            If an expression can be typed in several ways, how does Haskell pick which one to use?

            Motivating example

            Take this example:

            ...

            ANSWER

            Answered 2022-Feb-06 at 19:53

            If there is an ambiguous type variable v with a Num v constraint, it gets defaulted to Integer or Double, tried in that order, whichever satisfies all other constraints on v.

            Those defaulting rules are explained in the Haskell Report: https://www.haskell.org/onlinereport/haskell2010/haskellch4.html#x10-620004

            The GHC manual also explains additional defaulting rules in GHCi (this means trying things in GHCi will not give you an accurate picture of what is going on when you compile a program): https://downloads.haskell.org/ghc/latest/docs/html/users_guide/ghci.html#type-defaulting-in-ghci

            Source https://stackoverflow.com/questions/71010972

            QUESTION

            How to not export all functions/methods from a package in perl?
            Asked 2022-Jan-23 at 11:39

            I am playing around with a existing perl module lets call it Obj. I have added some new features (subroutines / methods) to Obj but store them in another .pm call it Foo. However I dont want Obj to inherit every sub from Foo.

            Now I have been reading perl documentation for a few hours and am confused. https://perldoc.perl.org/Exporter#Selecting-What-to-Export Just says 'Do not export method names!'

            Here is some example code, I'd like to not see sub _not_exported from Obj.pm:

            ...

            ANSWER

            Answered 2022-Jan-23 at 08:59

            [Note: I'm am a former maintainer of Exporter]

            I believe you've confused exporting with inheritance. That's easy to do, Perl doesn't draw a line between "function" and "method", they're just sub.

            tl;dr You don't need to export, that's just how inheritance works, there is a work around.

            Exporting lets you call a function from outside of a package without fully qualifying it. It would let you call Foo::hello as just hello. Exporting lets Perl know that hello really means hello in package Foo.

            But these are method calls, and you call them on a class or object. my $foo = Foo->new; $foo->hello. No exporting required. Foo->new calls new in Foo and returns a Foo object. $foo->hello knows to look for the method foo in the ancestry of $foo's class. You don't need to use exporter in a class, that's what "Do not export method names" means.

            Exporting is a deliberate act which copies symbols around. Inheritance is all or nothing. If you inherit from a class you get all its methods (subs). This is a consequence of inheritance, and there are many other alternatives to inheritance such as composition.

            In other OO languages you could declare the method private and it would not be inherited. Perl doesn't have that. Normally you just live with this by convention as you have, put an underscore in front of the method name, don't document it, and if somebody uses it that's their problem. And that's usually fine.

            But you can make truly private methods with anonymous subs and lexical variables.

            Source https://stackoverflow.com/questions/70818333

            QUESTION

            Is it ok to use exit(1) to abort the program or should you attempt to return 1 from the main()?
            Asked 2022-Jan-15 at 11:39

            I have used exit(1) extensively in my code because it does (I hope) exactly what I want - abort the program. I nicely print an error message (or put it into stderr), and then I just leave.

            But I heard some schools of thought that this is bad for some reason and I don't understand why. The amount of work one would need to return an error value from every function where it is possible, and then navigate through cascading returns back to main so the program exits "naturally"... Is there a difference?

            Are there specific scenarios where it matters? Even when I use errno and perror(), it is still much easier to just exit(1) from the point where the error occurred and without making the code less readable.

            Do I have your blessing to use exit(1) ?

            ...

            ANSWER

            Answered 2022-Jan-15 at 11:39

            It's a choice to make for yourself.

            If you're writing a library, you really ought to report failure to the caller, which may be able to recover in ways you can't internally, and which might need to perform other cleanup that's not done by registered atexit() handlers.

            If your code might be called from C++ or other high-level languages, then again, don't unilaterally exit, as that prevents destructors running to perform similar cleanup.

            When you check memory use using Valgrind, then exit() will leave lots of objects in the "still accessible" state, making it harder to find your real leaks.

            So I generally recommend returning from main(), but would tolerate some use of exit() in program-specific code that's never going to end up in a library.

            Source https://stackoverflow.com/questions/70720918

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

            Vulnerabilities

            No vulnerabilities reported

            Install bless

            These instructions are to get BLESS up and running in your local development environment.
            Cd to the bless repo:.

            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 .
            Find more information at:

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            CLONE
          • HTTPS

            https://github.com/Netflix/bless.git

          • CLI

            gh repo clone Netflix/bless

          • sshUrl

            git@github.com:Netflix/bless.git

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