signer | Repositório que contém os componentes para facilitar | TLS library

 by   demoiselle Java Version: Current License: Non-SPDX

kandi X-RAY | signer Summary

kandi X-RAY | signer Summary

signer is a Java library typically used in Security, TLS applications. signer has no bugs, it has no vulnerabilities, it has build file available and it has high support. However signer has a Non-SPDX License. You can download it from GitHub.


            kandi-support Support

              signer has a highly active ecosystem.
              It has 90 star(s) with 46 fork(s). There are 32 watchers for this library.
              It had no major release in the last 6 months.
              There are 26 open issues and 273 have been closed. On average issues are closed in 200 days. There are 1 open pull requests and 0 closed requests.
              It has a negative sentiment in the developer community.
              The latest version of signer is current.

            kandi-Quality Quality

              signer has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              signer has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              signer releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.

            Top functions reviewed by kandi - BETA

            kandi has reviewed signer and discovered the below as its top functions. This is intended to give you an instant insight into signer implemented functionality, and help decide if they suit your requirements.
            • Load key value
            • Returns the certificate level
            • Returns the contents of the specified OID
            • Returns the name of the certificate distinguished name
            • Returns a string representation of the policy messages
            • Returns a string representation of this message
            • Construct an instance of the generic OIDGeneric
            • Returns the OIDGenerator object from the given certificate
            • Get the attribute value
            • Convert an X509CRL validatedID into an ID
            • Entry point
            • Gets the attribute s value
            • Gets the attribute value
            • Returns the string representation of the message
            • Returns the time stamp for the given signature
            • Returns the text representation of the policy
            • Get the Certificator certificates
            • Main entry point
            • Get the Certificator Certificates
            • Main entry point for testing
            • Connect to the server
            • Returns the policy name given the OID
            • Reads all certificates from the local file
            • Returns the signed attributes
            • Parses a 2 - 5 version of the X509
            • Loads the certificate
            Get all kandi verified functions for this library.

            signer Key Features

            No Key Features are available at this moment for signer.

            signer Examples and Code Snippets

            Returns the JWSS signer .
            javadot img1Lines of Code : 6dot img1License : Permissive (MIT License)
            copy iconCopy
            protected JWSSigner getJwsSigner() throws Exception {
                    String signingkey = config.getValue("signingkey", String.class);
                    String pemEncodedRSAPrivateKey = PEMKeyUtils.readKeyAsString(signingkey);
                    RSAKey rsaKey = (RSAKey)  

            Community Discussions


            How to locally unit-test Chainlink's Verifiable Random Function?
            Asked 2022-Mar-08 at 04:12

            While trying to set up a basic self-hosted unit testing environment (and CI) that tests this Chainlink VRF random number contract, I am experiencing slight difficulties in how to simulate any relevant blockchains/testnets locally.

            For example, I found this repository that tests Chainlinks VRF. However, for default deployment it suggests/requires a free KOVAN_RPC_URL e.g. from Infura's site and even for "local deployment" it suggests/requires a free MAINNET_RPC_URL from e.g. Alchemy's site.


            I adopted a unit test environment from the waffle framework which is described as:

            Filestructure ...


            Answered 2021-Sep-09 at 04:35

            to test locally you need to make use of mocks which can simulate having an oracle network. Because you're working locally, a Chainlink node doesn't know about your local blockchain, so you can't actually do proper VRF requests. Note you can try deploy a local Chainlink node and a local blockchain and have them talk, but it isn't fully supported yet so you may get mixed results. Anyway, as per the hardhat starter kit that you linked, you can set the defaultNetwork to be 'hardhat' in the hardhat.config.js file, then when you deploy and run the integration tests (yarn test-integration), it will use mocks to mock up the VRF node, and to test the requesting of a random number. See the test here, and the mock contracts and linktoken get deployed here



            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:



            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:



            how to sign a message with ecdsa privatekey using golang?
            Asked 2022-Feb-20 at 14:48

            I am trying to sign a message in go generated via hd wallet's private key using cosmos sdk. Below is the equivalent implementation in python which generates the signed message / signature as expected when submitted/verified is working properly but unable to get it working wtih Go implementation. Any inputs for equivalent golang version of the python implementation is much appreciated. Thank you.

            Python version uses sha256 , ecdsa but when using the equivalent cyrpto/ecdsa doesn't return valid signature.




            Answered 2022-Feb-20 at 14:48

            Both codes return hex encoded as private key



            How to check instruction in Solana on-chain program?
            Asked 2022-Feb-11 at 18:01

            I am developing game, which guesses number and get reward if they success. This is summary of my program. First, user send amount of sol and his guessing number. Second, Program get random number and store user's sol to vault. Third, Program make random number, if user is right, gives him reward.

            Here, how can I check if the user sent correct amount of sol in program?

            This is test code for calling program.



            Answered 2022-Jan-15 at 11:56

            The best solution would be to directly transfer the lamports inside of your program using a cross-program invocation, like this program: Cross-program invocation with unauthorized signer or writable account

            Otherwise, from within your program, you can check the lamports on the AccountInfo passed, and make sure it's the proper number, similar to this example:

            The difference there is that you don't need to move the lamports.



            How to transfer custom SPL token by '@solana/web3.js' and '@solana/sol-wallet-adapter'
            Asked 2022-Jan-29 at 21:02

            Hello I am trying to transfer a custom SPL token with the solana-wallet adapter. However i am having trouble getting the wallet's secret key/signing the transaction.

            I've looked at these answers for writing the transfer code but i need to get the Singer and i have trouble figuring out how with solana-wallet adapter. These examples hardcode the secret key and since i'm using a wallet extension this is not possible.

            How can you transfer SOL using the web3.js sdk for Solana?

            How to transfer custom token by '@solana/web3.js'

            according to this issue on the webadapter repo you need to:

            1. Create a @solana/web3.js Transaction object and add instructions to it
            2. Sign the transaction with the wallet
            3. Send the transaction over a Connection

            But i am having difficulty finding examples or documentation as to how to do step 1 and 2.



            Answered 2021-Dec-06 at 13:51

            So i found a way to do this, it requires some cleanup and error handling but allows for a custom token transaction via @solana/wallet-adapter.



            Why do I get "The request signature we calculated does not match the signature you provided." for GET but not PUT for OpenSearch?
            Asked 2022-Jan-24 at 13:39

            I am following this guide for signing HTTP requests to an Amazon OpenSearch Service using Node.js (version 3 of the AWS SDK for JavaScript).

            When I copy the exact sample code and export my AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY of my authorised user, the PUT index/type/id request to add an item is successful:



            Answered 2022-Jan-24 at 13:39

            i also had this issue, using the same tutorial

            reading the docs on request body searches, i found it states the following:

            Note The _search API accepts HTTP GET and POST for request body searches, but not all HTTP clients support adding a request body to a GET request. POST is the more universal choice.

            changing my method to POST solved the issue for me



            MetaMask - RPC Error: execution reverted {code: -32000, message: 'execution reverted'} while trying to connect to smart contract
            Asked 2022-Jan-09 at 03:49

            I have deployed a smart contract on a public testnet and now I am trying to connect to it from the front end using ethers js. But when I try to fetch the value it gives the following errors in the console:

            I am using Angular for the front end and here's the code I wrote:



            Answered 2022-Jan-04 at 15:24

            I have encountered the same error. I had not changed the contract address once I deployed it to the testnet(Previously I deployed to localhost). Just check if the contract address you are using is of the contract you deployed to the testnet.



            Set gas limit on contract method in ethers.js
            Asked 2022-Jan-07 at 13:55

            I am trying so use a method of a contract in the testnetwork (ropsten), but it fails due to this error:

            reason: 'cannot estimate gas; transaction may fail or may require manual gas limit', code: 'UNPREDICTABLE_GAS_LIMIT'


            I created an instance of the smart contract and wanted to call it's register method:



            Answered 2022-Jan-07 at 13:55

            You can set the gas limit with an object as the last argument, for a simple transfer transaction, you could do something like this:



            What is "Signature Verification Failed" in Solana?
            Asked 2021-Dec-28 at 10:43

            I'm trying to call a Solana Program, and when I run sendAndConfirmTransaction, it gives me Signature Verification Failed, and I'm not sure why.



            Answered 2021-Dec-18 at 19:44

            In Solana, you need to pass in both the keypairs of the signer, and the keypairs of the accounts you're creating.



            Why am I receiving the following Chainlink error: cannot estimate gas
            Asked 2021-Dec-09 at 14:07

            I am trying to follow the Chainlink VRF tutorial found here: with hardhat and am running into this issue when calling the rollDice function:



            Answered 2021-Oct-28 at 13:38

            I believe the addresses are off:

            Constructor Arguments of your contract: -----Decoded View--------------- Arg [0] : vrfCoordinator (address): 0xa36085f69e2889c224210f603d836748e7dc0088 Arg [1] : link (address): 0xdd3782915140c8f3b190b5d67eac6dc5760c46e9 Arg [2] : keyHash (bytes32): 0x6c3699283bda56ad74f6b855546325b68d482e983852a7a82979cc4807b641f4 Arg [3] : fee (uint256): 100000000000000000

            Via Chainlinks Docs:

            LINK 0xa36085F69e2889c224210F603D836748e7dC0088 VRF Coordinator 0xdD3782915140c8f3b190B5D67eAc6dc5760C46E9 Key Hash 0x6c3699283bda56ad74f6b855546325b68d482e983852a7a82979cc4807b641f4 Fee 0.1 LINK

            Switched Link and VRF are probably the culprit.


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


            No vulnerabilities reported

            Install signer

            You can download it from GitHub.
            You can use signer 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 signer 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 For Gradle installation, please refer .


            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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