bouncy

by martinshkreli JavaScript Version: Current License: No License

X-Ray Key Features Code Snippets(1)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | bouncy Summary

bouncy is a JavaScript library. bouncy has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

bouncy

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Quality

Security

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Support

bouncy has a low active ecosystem.

It has 7 star(s) with 11 fork(s). There are 6 watchers for this library.

It had no major release in the last 6 months.

There are 0 open issues and 3 have been closed. On average issues are closed in 52 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of bouncy is current.

Quality

bouncy has no bugs reported.

Security

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

License

bouncy does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

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

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bouncy Key Features

No Key Features are available at this moment for bouncy.

bouncy Examples and Code Snippets

Checks whether n is aouncy number .

python

Lines of Code : 33

License : Permissive (MIT License)

Copy

def check_bouncy(n: int) -> bool:
    """
    Returns True if number is bouncy, False otherwise
    >>> check_bouncy(6789)
    False
    >>> check_bouncy(-12345)
    False
    >>> check_bouncy(0)
    False
    >>&g

Community Discussions

Trending Discussions on bouncy

SHA-3 variable length hash same as truncating normal hash in Java using BouncyCastle

C# X509 certificate validation, with Online CRL check, without importing root certificate to trusted root CA certificate store

How do you change the entire selection to individual choices in React Native?

What is being signed by the custom signer?

Java Argon2 Hashing

ClassNotFoundException loading data from snowflake with pyspark

Sign/Verify Json using ED25519 keys with Bouncy Castle (Java)

How to decrypt data using the BouncyCastle Blowfish implementation?

BouncyCastle JSSE and BCTLS No Credentials for Cipher

Load an Encrypted PCKS8 PEM Private Key In Java

QUESTION

SHA-3 variable length hash same as truncating normal hash in Java using BouncyCastle

Asked 2021-Jun-01 at 18:12

I need to generate a fixed length hash of 30 characters based on some input data (like a customer email address) in Java. After some searching, I found out about SHA-3 sponge functions, where I can specify the required length. I implemented the following using Bouncy Castle SHAKEDigest class.

...

ANSWER

Answered 2021-Jun-01 at 18:12

Nit: SHAKEn are actually Extensible Output Functions (XOFs) built on the Keccak sponge in the same way that the (fixed length) SHA3 hashes are; see https://en.wikipedia.org/wiki/SHA-3#Instances .

But the point you seem to have misunderstood is that the underlying sponge makes each/all of these deterministic -- a given instance (parameterization) produces the same output everytime for the same input, and is not affected by the output size as such. Thus SHA3-256(m) is not the first 256 bits of SHA3-512(m) because it has different parameters, while SHAKE128(m,256) is the first 256 bits of SHAKE128(m,512) but is not SHAKE256(m,256).

Yes, you can truncate any SHA3 hash (or SHA2 hash for that matter) to a size smaller than its normal size and get a smaller but otherwise equally good crypto hash (pseudo-random, irreversible and noncolliding for real data), and people have in fact been doing exactly this for decades. But you can't safely increase it, which you can with an XOF like SHAKE.

Source https://stackoverflow.com/questions/67779594

QUESTION

C# X509 certificate validation, with Online CRL check, without importing root certificate to trusted root CA certificate store

Asked 2021-May-14 at 17:08

I'm trying to validate an X509 certificate chain without importing the root CA certificate into the trusted root CA certificate store (in production this code will run in an Azure Function, and you can't add certificates to the trusted root CA certificate store on Azure App Services).

We also need to perform an online CRL check on this certificate chain.

I've searched on this and I see many others are facing the same problem, but none of the suggestions seem to work. I've followed the approach outlined in this SO post, which echoes the suggestions from issue #26449 on the dotnet/runtime GitHub. Here's a small console application (targetting .NET Core 3.1) reproducing the problem:

...

ANSWER

Answered 2021-May-14 at 11:59

Well, not a full answer, but probably it will get you going.

We've built before an Azure Web App (not a function app, but I guess wouldn't matter) which did exactly what you want. Took us a week or so. Full answer would be posting the code of the whole app, we I obviously cannot do. Some hints though.

We walked around the certificate problem by uploading certificates to the app (TLS settings) and accessing them in code through WEBSITE_LOAD_CERTIFICATES setting (you put thumbprints there, it's also mentioned in the link you posted), than you can get them in code and build your own certificate store:

Source https://stackoverflow.com/questions/67531835

QUESTION

How do you change the entire selection to individual choices in React Native?

Asked 2021-May-04 at 01:16

We are currently developing based on React Native. And I received data by GET request through API document, and I created scroll view through MAP method. So now I'm trying to make it possible to choose, but if I choose one, it's all chosen. How can I make you choose one by one if I choose one from my code?

...

ANSWER

Answered 2021-May-04 at 01:16

this example explain how to select individual choice.
do these steps :

Source https://stackoverflow.com/questions/67361394

QUESTION

What is being signed by the custom signer?

Asked 2021-Mar-24 at 08:01

I have the following code to sign, the problem I am having is that the data that will be signed is being send over the network and I need to process it on another function but im not sure what type of encoding or hash does it have?

...

ANSWER

Answered 2021-Mar-24 at 08:01

As Jim Garrison and dave_thompson_085 already said in comments that's a base64 encoded signed attributes DER structure with content type, signing time, message digest, and algorithm protection properties. Here an ASN.1 dump of it:

Source https://stackoverflow.com/questions/66768124

QUESTION

Java Argon2 Hashing

Asked 2021-Mar-12 at 07:50

I'm trying to figure out how to practically use argon2 hashing for passwords in Java. I've got to be missing something, because none of the APIs return discrete fields for the hash or the salt. I've tried both a JVM binding for argon2 and also spring-security + bouncy castle and both give me a String, but it's also serialized with information beyond just the hashed password and salt.

...

ANSWER

Answered 2021-Mar-12 at 07:50

I'm using Bouncy Castle to implement Argon2id as it allows to set the parameters and salt instead of parsing the output.

The below full running program uses 4 parameter sets - the parameter were taken from PHP's OpenSSL implementation but you can choose the parameter individually of course.

As the program is taken from a Cross platform project it uses a fixed salt that is UNSECURE - in production you need to use a randomly generated salt.

This is an output:

Source https://stackoverflow.com/questions/66594009

QUESTION

ClassNotFoundException loading data from snowflake with pyspark

Asked 2021-Mar-11 at 06:32

I am getting this error when I try to load data from snowflake into a dataframe with pyspark:

...

ANSWER

Answered 2021-Mar-11 at 06:32

Ultimately, I was able to resolve this by:

downloading Java straight from Oracle (rather than uninstalling and reinstalling with homebrew),
deleting spark, downloading again (from apache, not via homebrew), and setting up environment variables as described here (mostly... I use a virtual environment so I didn't hardcode PYSPARK_PYTHON to system python3)
uninstalling pyspark and reinstalling
quitting pycharm and reopening (this refreshed all my environment variables that were set in .zshrc, like JAVA_HOME)

There's almost certainly an easier way, but this worked.

Source https://stackoverflow.com/questions/66539245

QUESTION

Sign/Verify Json using ED25519 keys with Bouncy Castle (Java)

Asked 2021-Mar-04 at 18:24

I have generated following keys using ssh-keygen -t ed25519:

...

ANSWER

Answered 2021-Mar-04 at 18:24

The private and public Ed25519 keys are each 32 bytes in size. They can be encapsulated in different formats. ssh-keygen generates both Ed25519 keys in OpenSSH format with the statement used. This format cannot be imported directly. However, BouncyCastle provides helper classes for this purpose.

The private key can be loaded with a PemReader and imported into an Ed25519PrivateKeyParameters instance with OpenSSHPrivateKeyUtil.parsePrivateKeyBlob(). OpenSSHPublicKeyUtil.parsePublicKey() allows importing the Base64 decoded body of the public key into an Ed25519PublicKeyParameters instance.

A key pair created with ssh-keygen -t ed25519 looks e.g. as follows:

Source https://stackoverflow.com/questions/66476780

QUESTION

How to decrypt data using the BouncyCastle Blowfish implementation?

Asked 2021-Mar-01 at 13:08

I'm consuming an external API which returns me a Blowfish encrypted JSON array. First I tried to implement Blowfish encrypt/decrypt methods using the BountyCastle package based on this post c# Bouncy Castle Blowfish Decryption - Pad block corrupted.

...

ANSWER

Answered 2021-Mar-01 at 13:08

The PHP code first separates the three parts. The second part is the IV, which is hex decoded and thus has a size of 8 bytes. The third part is the data, which is first hex decoded because of the -1 in the first part and then decrypted using the key and IV by applying Blowfish in CBC mode with PKCS7 padding.

To check the C# implementation, test data is useful:

As 20 bytes key the following Base64 decoded key is applied:

Source https://stackoverflow.com/questions/66370462

QUESTION

BouncyCastle JSSE and BCTLS No Credentials for Cipher

Asked 2021-Feb-25 at 15:42

Using BouncyCastle FIPS JSSE and TLS providers for my server application.

...

ANSWER

Answered 2021-Feb-25 at 15:42

Those log entries ("Server found no credentials..." mean that the server is configured to support the mentioned algorithm, but could not find a suitable credential (key-plus-certificate) via the X509KeyManager the SSLContext was initialized with.

BCJSSE (especially FIPS) doesn't interoperate with KeyManagerFactory or TrustManagerFactory from other providers, so please check that you have the default algorithms configured to PKIX (in java.security) to use the BCJSSE ones:

Source https://stackoverflow.com/questions/66316317

QUESTION

Load an Encrypted PCKS8 PEM Private Key In Java

Asked 2021-Feb-20 at 12:37

I wish to load/use an Encrypted Private Key provided to me in a Java application. Please find the keys (Encrypted Private, Decrypted Private and Public keys shown below).

The Encrypted Private key password: "aWCTJPET9fL7UBTp97hX99gdofeWKUf5tuxSuJeST2sEkyvkyinrfrj6EiSUTErF"

The keys were generated by using Crypto in NodeJS using:

...

ANSWER

Answered 2021-Feb-20 at 09:46

I inserted your private key (that is hopefully a sample one) in https://lapo.it/asn1js/

and got this result:

Source https://stackoverflow.com/questions/66286457

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

Vulnerabilities

No vulnerabilities reported

Install bouncy

You can download it from GitHub.

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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