RSA | Java implementation of RSA encryption algorithm http

 by   rmpestano Java Version: Current License: No License

kandi X-RAY | RSA Summary

kandi X-RAY | RSA Summary

RSA is a Java library. RSA has no bugs, it has no vulnerabilities and it has low support. However RSA build file is not available. You can download it from GitHub.

To run this program you will need to provide four arguments: p, q, e and message where:.
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            kandi-support Support

              RSA has a low active ecosystem.
              It has 9 star(s) with 1 fork(s). There are 1 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 1 open issues and 1 have been closed. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of RSA is current.

            kandi-Quality Quality

              RSA has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              RSA does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              RSA releases are not available. You will need to build from source code and install.
              RSA has no build file. You will be need to create the build yourself to build the component from source.

            Top functions reviewed by kandi - BETA

            kandi has reviewed RSA and discovered the below as its top functions. This is intended to give you an instant insight into RSA implemented functionality, and help decide if they suit your requirements.
            • Calculates the signer file
            • Sign the private key
            • Returns true if the message contains the modulus
            • Split a list of messages into a single string
            • Returns a list of valid encryption blocks
            • Sign a message
            • Test program
            • Encrypts a list of BigInteger bytes
            • Converts a list of BigInteger objects to a plain text string
            • Encrypts a file
            • Encrypt message
            • Encrypt a message
            • Reads a file into a list of decimal numbers
            • Convert a message to decimal list
            • Verifies a list of signed messages
            • Verify a signed message
            • Returns true if the signed message matches the given signed message
            Get all kandi verified functions for this library.

            RSA Key Features

            No Key Features are available at this moment for RSA.

            RSA Examples and Code Snippets

            No Code Snippets are available at this moment for RSA.

            Community Discussions

            QUESTION

            Fixing git HTTPS Error: "bad key length" on macOS 12
            Asked 2022-Mar-29 at 17:34

            I am using a company-hosted (Bitbucket) git repository that is accessible via HTTPS. Accessing it (e.g. git fetch) worked using macOS 11 (Big Sur), but broke after an update to macOS 12 Monterey. *

            After the update of macOS to 12 Monterey my previous git setup broke. Now I am getting the following error message:

            ...

            ANSWER

            Answered 2021-Nov-02 at 07:12

            Unfortunately I can't provide you with a fix, but I've found a workaround for that exact same problem (company-hosted bitbucket resulting in exact same error). I also don't know exactly why the problem occurs, but my best guess would be that the libressl library shipped with Monterey has some sort of problem with specific (?TLSv1.3) certs. This guess is because the brew-installed openssl v1.1 and v3 don't throw that error when executed with /opt/homebrew/opt/openssl/bin/openssl s_client -connect ...:443

            To get around that error, I've built git from source built against different openssl and curl implementations:

            1. install autoconf, openssl and curl with brew (I think you can select the openssl lib you like, i.e. v1.1 or v3, I chose v3)
            2. clone git version you like, i.e. git clone --branch v2.33.1 https://github.com/git/git.git
            3. cd git
            4. make configure (that is why autoconf is needed)
            5. execute LDFLAGS="-L/opt/homebrew/opt/openssl@3/lib -L/opt/homebrew/opt/curl/lib" CPPFLAGS="-I/opt/homebrew/opt/openssl@3/include -I/opt/homebrew/opt/curl/include" ./configure --prefix=$HOME/git (here LDFLAGS and CPPFLAGS include the libs git will be built against, the right flags are emitted by brew on install success of curl and openssl; --prefix is the install directory of git, defaults to /usr/local but can be changed)
            6. make install
            7. ensure to add the install directory's subfolder /bin to the front of your $PATH to "override" the default git shipped by Monterey
            8. restart terminal
            9. check that git version shows the new version

            This should help for now, but as I already said, this is only a workaround, hopefully Apple fixes their libressl fork ASAP.

            Source https://stackoverflow.com/questions/69734654

            QUESTION

            Unable to negotiate with 40.74.28.9 port 22: no matching host key type found. Their offer: ssh-rsa
            Asked 2022-Mar-28 at 15:54

            After start of using NixOS as a new package management system, I get the following error when using git within Azure DevOps repositories and rsa ssh key:

            ...

            ANSWER

            Answered 2021-Nov-12 at 12:44

            According to this post, you can add ssh.dev.azure.com host config to your ~/.ssh/config file:

            Final ~/.ssh/config that worked for me:

            Source https://stackoverflow.com/questions/69875520

            QUESTION

            Spring Cloud Config Server GitHub SHA-1 error
            Asked 2022-Mar-22 at 03:13
            Context

            This is regarding a Spring Cloud Config Server hobby project (with @EnableConfigServer).

            Yesterday, the application could be started.

            Today, the application failed to start because of a Git communication error.

            From GitHub's official blog post, it is mentioned that SHA-1 is no longer supported starting from 15 March 2022. And that explains the results I'm getting these 2 days.

            March 15, 2022

            Changes made permanent.

            We’ll permanently stop accepting DSA keys. RSA keys uploaded after the cut-off point above will work only with SHA-2 signatures (but again, RSA keys uploaded before this date will continue to work with SHA-1). The deprecated MACs, ciphers, and unencrypted Git protocol will be permanently disabled.

            Even if I didn't delete the existing SSH key, it still failed to start today. But anyway, now the only key under the "Deploy keys" section of the repository settings is an SSH key that was added after the March 15, 2022 cut off date.

            Dependency versions

            Dependency Management:

            Dependency Version spring-cloud-dependencies Hoxton.SR12

            Dependency:

            Dependency Version spring-cloud-config-server (Managed) Spring application configurations

            application.yml:

            ...

            ANSWER

            Answered 2022-Mar-16 at 14:07

            I have a same problem.

            See https://github.com/spring-cloud/spring-cloud-config/issues/2061

            For right now, I have a dirty workaround: use https uri, username and password(maybe personal secret token).

            Source https://stackoverflow.com/questions/71489256

            QUESTION

            Chaum blind signature with blinding in JavaScript and verifying in Java
            Asked 2022-Mar-04 at 16:01

            I'm experimenting with Chaum's blind signature, and what I'm trying to do is have the blinding and un-blinding done in JavaScript, and signing and verifying in Java (with bouncy castle). For the Java side, my source is this, and for JavaScript, I found blind-signatures. I've created two small codes to play with, for the Java side:

            ...

            ANSWER

            Answered 2021-Dec-13 at 14:56

            The blind-signature library used in the NodeJS code for blind signing implements the process described here:

            No padding takes place in this process.

            In the Java code, the implementation of signing the blind message in signConcealedMessage() is functionally identical to BlindSignature.sign().
            In contrast, the verification in the Java code is incompatible with the above process because the Java code uses PSS as padding during verification.
            A compatible Java code would be for instance:

            Source https://stackoverflow.com/questions/70324926

            QUESTION

            Prometheus cannot scrape from spring-boot application over HTTPS
            Asked 2022-Feb-11 at 19:34

            I'm deploying a spring-boot application and prometheus container through docker, and have exposed the spring-boot /actuator/prometheus endpoint successfully. However, when I enable prometheus debug logs, I can see it fails to scrape the metrics:

            ...

            ANSWER

            Answered 2022-Feb-07 at 22:37

            Ok, I think I found my problem. I made two changes:

            First, I moved the contents of the web.config.file into the prometheus.yml file under the 'spring-actuator'. Then I changed the target to use the hostname for my backend container, rather than 127.0.0.1.

            The end result was a single prometheus.yml file:

            Source https://stackoverflow.com/questions/70950420

            QUESTION

            Colab: (0) UNIMPLEMENTED: DNN library is not found
            Asked 2022-Feb-08 at 19:27

            I have pretrained model for object detection (Google Colab + TensorFlow) inside Google Colab and I run it two-three times per week for new images I have and everything was fine for the last year till this week. Now when I try to run model I have this message:

            ...

            ANSWER

            Answered 2022-Feb-07 at 09:19

            It happened the same to me last friday. I think it has something to do with Cuda instalation in Google Colab but I don't know exactly the reason

            Source https://stackoverflow.com/questions/71000120

            QUESTION

            Encrypt data in Javascript, Decrypt data in C# using private/public keys
            Asked 2022-Jan-26 at 13:22

            I want to encrypt data in a web browser that is send to my C# backend and decrypted there.

            That fails because I am unable to decrypt the data generated on the frontend in the backend.

            Here's what I did so far.

            First I created a private/public key pair (in XmlString Format). I took the ExportPublicKey function to generate the public key file from here: https://stackoverflow.com/a/28407693/98491

            ...

            ANSWER

            Answered 2022-Jan-24 at 15:42

            You need to encrypt with the private key and then decrypt with the public key

            Source https://stackoverflow.com/questions/70835886

            QUESTION

            Git Bash - ssh connection issue
            Asked 2022-Jan-25 at 07:13

            Environment:

            ...

            ANSWER

            Answered 2022-Jan-25 at 07:13

            Git For Windows 2.33.1 comes with OpenSSH 8.8 which disables RSA signatures using the SHA-1 hash algorithm by default.

            For most users, this change should be invisible and there is no need to replace ssh-rsa keys.
            OpenSSH has supported RFC8332 RSA/SHA-256/512 signatures since release 7.2 and existing ssh-rsa keys will automatically use the stronger algorithm where possible.

            Incompatibility is more likely when connecting to older SSH implementations that have not been upgraded or have not closely tracked improvements in the SSH protocol.

            For these cases, it may be necessary to selectively re-enable RSA/SHA1 to allow connection and/or user authentication via the HostkeyAlgorithms and PubkeyAcceptedAlgorithms options.
            For example, the following stanza in ~/.ssh/config will enable RSA/SHA1 for host and user authentication for a single destination host:

            Source https://stackoverflow.com/questions/69656858

            QUESTION

            Paramiko authentication fails with "Agreed upon 'rsa-sha2-512' pubkey algorithm" (and "unsupported public key algorithm: rsa-sha2-512" in sshd log)
            Asked 2022-Jan-13 at 14:49

            I have a Python 3 application running on CentOS Linux 7.7 executing SSH commands against remote hosts. It works properly but today I encountered an odd error executing a command against a "new" remote server (server based on RHEL 6.10):

            encountered RSA key, expected OPENSSH key

            Executing the same command from the system shell (using the same private key of course) works perfectly fine.

            On the remote server I discovered in /var/log/secure that when SSH connection and commands are issued from the source server with Python (using Paramiko) sshd complains about unsupported public key algorithm:

            userauth_pubkey: unsupported public key algorithm: rsa-sha2-512

            Note that target servers with higher RHEL/CentOS like 7.x don't encounter the issue.

            It seems like Paramiko picks/offers the wrong algorithm when negotiating with the remote server when on the contrary SSH shell performs the negotiation properly in the context of this "old" target server. How to get the Python program to work as expected?

            Python code

            ...

            ANSWER

            Answered 2022-Jan-13 at 14:49

            Imo, it's a bug in Paramiko. It does not handle correctly absence of server-sig-algs extension on the server side.

            Try disabling rsa-sha2-* on Paramiko side altogether:

            Source https://stackoverflow.com/questions/70565357

            QUESTION

            Separate gitconfig by directory
            Asked 2021-Nov-20 at 09:48

            I have 2 different github accounts, 1 for work and 1 for personal projects. On my laptop, I created 2 different directories to clone my Github repositories:

            Perso: /Users/pierre-alexandre/Documents/perso

            Work: /Users/pierre-alexandre/Documents/work

            Then, I generated 2 different SSH keys on /Users/pierre-alexandre/.ssh and added each .pub key on their respective Github repository. At the end this is what my /Users/pierre-alexandre/.ssh folder looks like:

            ...

            ANSWER

            Answered 2021-Nov-20 at 09:48

            Git just runs ssh to connect to a host. Once connected, Git has that ssh run an appropriate Git command on their end, to handle the fetch or push operation. But the entire authentication process—determining who you are and deciding whether you have access—is wholly up to ssh and Git plays no real part in this process.

            Your ssh -Tv is therefore the crucial debug output here. We see that your connection to github fails to authenticate as you, after trying these keys:

            Source https://stackoverflow.com/questions/70044276

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

            Vulnerabilities

            No vulnerabilities reported

            Install RSA

            You can download it from GitHub.
            You can use RSA 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 RSA 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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            https://github.com/rmpestano/RSA.git

          • CLI

            gh repo clone rmpestano/RSA

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            git@github.com:rmpestano/RSA.git

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