sjcl | Stanford Javascript Crypto Library | Cryptography library

 by   bitwiseshiftleft JavaScript Version: 1.0.8 License: Non-SPDX

kandi X-RAY | sjcl Summary

kandi X-RAY | sjcl Summary

sjcl is a JavaScript library typically used in Security, Cryptography, Nodejs applications. sjcl has no bugs, it has no vulnerabilities and it has medium support. However sjcl has a Non-SPDX License. You can install using 'npm i zetrix-sjcl' or download it from GitHub, npm.

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              sjcl has a medium active ecosystem.
              It has 7067 star(s) with 940 fork(s). There are 234 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 105 open issues and 177 have been closed. On average issues are closed in 187 days. There are 10 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of sjcl is 1.0.8

            kandi-Quality Quality

              sjcl has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              sjcl 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

              sjcl releases are available to install and integrate.
              Deployable package is available in npm.
              sjcl saves you 204 person hours of effort in developing the same functionality from scratch.
              It has 502 lines of code, 0 functions and 101 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed sjcl and discovered the below as its top functions. This is intended to give you an instant insight into sjcl implemented functionality, and help decide if they suit your requirements.
            • Decrypt .
            • handler for enter
            • Block for division .
            • Encrypt the signature .
            • Decrypt in the form
            • Get the CryptoModule .
            • step = i . reduce
            • Initializes the form .
            • Calculate n - bit integer
            • Stops the event .
            Get all kandi verified functions for this library.

            sjcl Key Features

            No Key Features are available at this moment for sjcl.

            sjcl Examples and Code Snippets

            No Code Snippets are available at this moment for sjcl.

            Community Discussions

            QUESTION

            Is NodeJS crypto dependent on the user's system?
            Asked 2022-Jan-15 at 06:29

            I'm looking for a complete JS crypto library: all SHAs, AEAD (chacha/poly, aes-gcm), all AESs, NIST and SECP P256 and ED25519 support, ECDSA, ECDH/E, etc.

            It looks like the nodeJS crypto module has full support of everything I need, but it says it is a wrapper around OpenSSL.

            Does this mean some functions may not work if a user does not have OpenSSL installed (or an outdated version)? I assume it does, but that is very unlike Node, so I want to be sure.

            If so, are there are any "complete" libraries out there? libsodium, sjcl, and crypto-js are insufficient (I could piece together a sol'n from multiple libs if necessary).

            ...

            ANSWER

            Answered 2022-Jan-15 at 06:29

            Nodejs is statically linked to its own built-in version of OpenSSL. It does not rely on an external OpenSSL installation.

            There are multiple articles that reference how nodejs has to be updated in order to get the newer OpenSSL versions (because it links OpenSSL right into nodejs).

            Here are a couple of those articles:

            https://developer.ibm.com/blogs/openssl-111-has-landed-in-nodejs-master-and-why-its-important-for-nodejs-lts-releases/

            https://nodejs.org/ru/blog/vulnerability/april-2020-openssl-updates/

            https://issueexplorer.com/issue/nodejs/node/40106

            Source https://stackoverflow.com/questions/70717633

            QUESTION

            creating series_route from multiple chunks of string in list
            Asked 2022-Jan-08 at 10:17

            I am working on a route building code and have half a million record which taking around 3-4 hrs to get executed.

            For creating dataframe:

            ...

            ANSWER

            Answered 2022-Jan-08 at 10:17

            Use explode to flatten your dataframe:

            Source https://stackoverflow.com/questions/70631234

            QUESTION

            Resolving bcrypt return promise
            Asked 2021-Dec-14 at 19:54

            Im trying to pass the result of the bcrypt hashing function into the user model below.

            I can't seem be able to wrap my head around how to efficiently resolve this promise.

            Heres the code:

            ...

            ANSWER

            Answered 2021-Dec-14 at 18:37

            Don't pass a callback to bcrypt.hash and then you can await it.

            Source https://stackoverflow.com/questions/70353816

            QUESTION

            How to Decrypt AES SubtleCrypto Web API at SJCL Library
            Asked 2021-Dec-12 at 11:35

            We have an Expo React Native Project utilizing encryption. Our current encryption is based on SubtleCrypto / Web API [window.subtle.crypto], using AES-GCM 128, now we need to use a library that is universally available on all platforms [Web, iOS and Android], from my previous question, we've found SJCL that supports GCM mode and we can completely replace all the web-only based code BUT the challenge is that we need to ensure that all the current encrypted data is decrypted at this new library too, we have to make it so:

            window.crypto.subtle.encrypt [AES-GCM 128] => (a) ---> SJCL.mode.gcm.decrypt(a)

            Once we can do that successfully, we can fully replace the library and have universal platform support as well as backwards compatibility.

            This means that we cannot change the way encryption is handled at all, as that is the requirement, and we're encrypting it exactly as the code below.

            I got a very good lead here by Neneil94 but I'm still facing issues at encoding / formats; and here's the current code:

            ...

            ANSWER

            Answered 2021-Dec-12 at 11:35

            There are two problems in your code:

            • kkey is the Base64url encoded raw key. This must first be converted to Base64 and then to a bitArray:

            Source https://stackoverflow.com/questions/70321733

            QUESTION

            What is the Python equivalent of this JS function to decrypt an AES-CCM-encrypted string?
            Asked 2021-Sep-04 at 13:19

            I’d like to decrypt an AES-encrypted string (CCM mode) in Python 3.

            The following JavaScript code which is using the sjcl library is working correctly:

            ...

            ANSWER

            Answered 2021-Sep-04 at 13:19

            The sjcl operates on arrays of 4 byte words. With sjcl.codec.hex.toBits() the hex encoded key is converted into such an array. The first 8 bytes (16 hexdigits) of the key are used as nonce.
            Key size, tag size, algorithm and mode are determined from the params object. The params object further contains parameters for the key derivation, e.g. iter, salt, etc.), but these are ignored here since the key is passed as an array and not as a string.
            Nonce and ciphertext are passed Base64 encoded within the params object.

            The ciphertext is the concatenation of the actual ciphertext and the tag in this order, which must also be passed to the decryption in this format.
            While the sjcl processes ciphertext and tag concatenated, PyCryptodome handles both separately. Apart from that, encryption and decryption in Python is straightforward with PyCryptodome:

            Source https://stackoverflow.com/questions/69036463

            QUESTION

            How to handle IndexError exception before combining objects
            Asked 2021-Mar-29 at 00:07

            What I'm looking to achieve:

            The code added below filters through a parsed HTML page looking for specific values. Each specific value is then added to its own specific list in the form of a dictionary. Once all the values are added to the lists the dictionaries within are then combined into a JSON blob that I can then export.

            Note - This is part of a quick PoC, so it was written quick and dirty. Forgive me.

            My problem:

            When the following lists dictionaries are combined I do not encounter any issues when export the blob:

            • jobs
            • names
            • dates
            • summaries

            However, when the locations list is added in order to be combined into the blob an IndexError exception is encountered. As shown in the image below:

            IndexError Encountered

            My Analysis:

            I've found that sometimes the value is not found because it was not included in the parsed HTML for reason/s that I cannot control, ie. it was not added my the user when it was created. The issue in this case being that the len of the locations list being 14 whilst the len of the other lists being equal at 15 which is causing the IndexError exception when I combine the lists using a for loop.

            My Question:

            As shown in my code below, I'm trying to handle the issue by assigning a placeholder value, "null", when the scraped value is not found but for some reason the value is not applied and I still encounter the IndexError exception. Any help would be appreciated, thank you in advance.

            My Code:

            ...

            ANSWER

            Answered 2021-Mar-29 at 00:07

            Thank You @pavel for your notes on how to approach the issue. I found that the value I was looking for was actually a required field when it was created and for some reason I was just not getting the correct amount of values when I was filtering the parsed data.

            I reviewed the source code of the page/s again and found that there was another field with the exact value I was looking for. So now instead of getting the text of a span-element inside the parent div, I am getting the custom data-* attribute value of the parent div-element. I have not encountered a single error whilst testing.

            Updated Code:

            Source https://stackoverflow.com/questions/66846988

            QUESTION

            Generate a Java compatible Diffie-Hellman using Python
            Asked 2021-Jan-31 at 19:45

            I am trying to rewrite the following code in Python. The original code is written in Javascript using the sjcl library.

            ...

            ANSWER

            Answered 2021-Jan-31 at 19:45

            PyCryptodome does not seem to support ECDH at the moment, see Future plans. An alternative is the Cryptography library, see Elliptic Curve Key Exchange algorithm.

            The library expects the private key as int and the public key in uncompressed format as bytes object. The uncompressed format consists of the concatenated x and y coordinates preceded by a 0x04 byte.

            sjcl.ecc.curves.c256 defines secp256r1 (aka prime256v1 aka NIST P-256).

            Then a possible implementation in Python with Cryptography is:

            Source https://stackoverflow.com/questions/65980446

            QUESTION

            $(...).tooltip is not a function
            Asked 2020-Jul-15 at 09:52

            I have a project based on Laravel with Bootstrap, which also includes some packages like bootstrap select (https://developer.snapappointments.com/bootstrap-select/)

            I think the error comes from this package, but I cannot get the tooltip to work.

            Console error:

            ...

            ANSWER

            Answered 2020-Jul-15 at 09:52

            Okay I solved the issue myself.

            The issue was in app.js and bootstrap.js

            I'll have to require the package in app.js by its full source:

            Source https://stackoverflow.com/questions/62911902

            QUESTION

            Can I compile SJCL library with Google closure compiler?
            Asked 2020-Jun-20 at 01:02

            I have a vanilla javascript project that is compiled and minified using Closure Compiler v20181210. I want to use SJCL in that project for crypto.

            I copied this file into my own project and wrote code using the library. But when I try to compile it, Closure Compiler throws a bunch of errors from the library (pasted below).

            On the SJCL website, it says that the file is compressed using Google Closure Compressor. So I imagine it should be compatible with Closure? Why is it not compiling then?

            Also, I read about externs. But I want all the code to be in a single minified file. With externs, it looks like I would need another import for SJCL.

            Some of the Closure Compiler Errors:

            ...

            ANSWER

            Answered 2020-Jun-20 at 01:02

            Closure Compiler was throwing errors for SJCL because of the jscomp_error flags I had on for my own project. Without these, sjcl.js compiles fine.

            I fixed it by adding --hide_warnings_for='sjcl.js'

            So the rest of the project still uses those flags but sjcl compiles fine.

            Source https://stackoverflow.com/questions/62464109

            QUESTION

            Generate public key in browser if I only have the existing private key
            Asked 2020-Apr-05 at 00:39

            I'm generating new Ethereum addresses using the scep256k1 curve. Due to storage and hardware limitations, I'm only able to store the private key. I'm looking for ways to generate the public key for asymmetric encryption (NOT the Ethereum public address) in the browser.

            It is my understanding that the public key can be derived from the scep256k1 private key, but I'm not sure how to do this in the browser, or whether this is even possible with existing libraries, but I've a hunch that it is. I'm currently trying to see if it is possible with Web3js, SJCL, or CryptoJS but am open to other options.

            To provide a bit of an understanding of the flow here. Step 3 is what I'm currently trying to do:

            1. Generate scep256k1 key pair using openSSL
            2. Upload the private key to hardware device and give this to a user
            3. User in web interface: use private key from hardware to get access to their public key, and reconstruct the Ethereum address.

            Any pointers in the right direction are appreciated!

            ...

            ANSWER

            Answered 2020-Apr-04 at 19:52

            Yep this is trivial.

            You simply need to use the private key byte array (which is effectively a 256-bit scalar), and multiply it by the secp256k1 curves generator point g which is itself a point on the curve which generates the curves cyclic group.

            ETH addresses are independently derived from the underlying secp256k1 public key, which is itself physically, a point on the curve.

            The method call you're looking for is curve scalar multiplication.

            The generator is:

            Source https://stackoverflow.com/questions/61032722

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

            Vulnerabilities

            No vulnerabilities reported

            Install sjcl

            You can install using 'npm i zetrix-sjcl' or download it from GitHub, npm.

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