cryptii | Web app and framework offering modular conversion | Encryption library

by cryptii JavaScript Version: v4.0.9 License: MIT

X-Ray Key Features Code Snippets Community Discussions(8)Vulnerabilities Install Support

kandi X-RAY | cryptii Summary

cryptii is a JavaScript library typically used in Security, Encryption, Framework applications. cryptii has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Web app and framework offering modular conversion, encoding and encryption. Translations are done client side without any server interaction — cryptii.com.

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cryptii has a medium active ecosystem.

It has 1270 star(s) with 213 fork(s). There are 41 watchers for this library.

It had no major release in the last 12 months.

There are 38 open issues and 63 have been closed. On average issues are closed in 481 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of cryptii is v4.0.9

Quality

cryptii has 0 bugs and 0 code smells.

Security

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

cryptii code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

cryptii is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

cryptii releases are available to install and integrate.

Installation instructions are available. Examples and code snippets are not available.

cryptii saves you 768 person hours of effort in developing the same functionality from scratch.

It has 1768 lines of code, 0 functions and 170 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed cryptii and discovered the below as its top functions. This is intended to give you an instant insight into cryptii implemented functionality, and help decide if they suit your requirements.

Inject distribution header .
Rename the index to package . json .

Get all kandi verified functions for this library.

cryptii Key Features

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cryptii Examples and Code Snippets

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Community Discussions

Trending Discussions on cryptii

Generating PDF user password hash

Convert float32 bytes to base64 encoded bytes

Decoding AES-CTR messages in Node-RED

Python base32 decode result is different

Decrypting ZigBee paquets

Elixir: Base64 decode TTN message

Why doesn't my C# code produce the same output when using AES CBC 128bit encryption as this website: https://cryptii.com/pipes/aes-encryption

How can I automatically show the result of a JavaScript function on a HTML form, when I change the input?

QUESTION

Generating PDF user password hash

Asked 2022-Mar-20 at 11:40

Currently, I am attempting to generating a hash of a user password for PDF, given the encrypted PDF file and the plain password. I follow the instruction of this article. However, the hash I've computed is different from the hash stored in the PDF file.

The hashed user password (/U entry) is simply the 32-byte padding string above, encrypted with RC4, using the 5-byte file key. Compliant PDF viewers will check the password given by the user (by attempting to decrypt the /U entry using the file key, and comparing it against the padding string) and allow or refuse certain operations based on the permission settings.

First, I padded my password "123456" using a hardcoded 32-byte string, which gives me

...

ANSWER

Answered 2022-Mar-20 at 11:40

There are two issues in your calculation:

The article to use refers to PDF encryption algorithms available for PDF-1.3 but your document is encrypted using an algorithm introduced with PDF-1.5.
You make an error when appending the file identifier - actually only the first entry of the ID array shall be appended, not both (which is not really clear from the article you use).

In a comment you asked accordingly

where can I find the password hashing detail for >V1.3 PDF?

I would propose using the PDF specification, ISO 32000.

As ISO specifications go, they are not free, but Adobe used to provide a version of ISO 32000-1 with merely the ISO header removed on their web site. Some days ago it has been removed (By design? By error? I don't know yet.) but you still find copies of it googl'ing for "PDF32000".

The relevant section in ISO 32000-1 is 7.6 Encryption and in particular 7.6.3 Standard Security Handler.

Following that information you should be able to correctly calculate the value in question.

(Alternatively you can also use old Adobe PDF references, the editions for PDF 1.5, 1.6, and 1.7 should also give you the information required for decrypting your document. But these references have been characterized as not normative in nature by prominent Adobe employees, so I would go for the ISO norm.)

Beware, though: After ISO 32000-1 had been published, Adobe introduced an AES-256 encryption scheme as an extension which obviously is not included in ISO 32000-1. You can find a specification in "Adobe Supplement to ISO 32000, base version 1.7, extension level 3".

Furthermore, with ISO 32000-2 that Adobe AES-256 encryption scheme and all older schemes became deprecated, the only encryption scheme to use with PDF-2.0 is a new AES-256 encryption scheme described in ISO 32000-2 which is based on the Adobe scheme but introduces some extra hashing iterations.

Source https://stackoverflow.com/questions/71535246

QUESTION

Convert float32 bytes to base64 encoded bytes

Asked 2022-Mar-14 at 19:37

I have a float value 16.75 which needs to be encoded into base64 binary.

I am using the website https://cryptii.com/pipes/binary-to-base64 as a reference for validation. 16.75 encoded into 32bit floating point format results in 01000001 10000110 00000000 00000000 which gets a base64 encoding value of QYYAAA==

Using the accepted answer from Python, base64, float unfortunately leads me to a different answer still.

...

ANSWER

Answered 2022-Mar-14 at 19:37

The problem you're running into is the differences in byte order and size of float.

Python floats are doubles. The binary you're feeding into the Cryptii website is a float32 representation.

To match the answer you were looking up, you'd need to create the struct using "!f" (big-endian float32)

Source https://stackoverflow.com/questions/71472722

QUESTION

Decoding AES-CTR messages in Node-RED

Asked 2021-Jun-01 at 10:51

I having trouble decrypting AES-CTR payloads in Node-RED.

As an example I am encoding "Message" here -> https://cryptii.com/pipes/aes-encryption - and then decrypting that result in Node-RED.

...

ANSWER

Answered 2021-Jun-01 at 10:51

Key, IV and ciphertext are hex encoded and therefore must be parsed with the hex encoder and converted to WordArrays (also CryptoJS applies a key derivation function if the key is passed as a string).

The ciphertext must be passed as a CipherParams object.

CTR is a stream cipher mode and does not use padding. In CryptoJS padding must be explicitly disabled, otherwise the default padding (PKCS7) is applied.

Source https://stackoverflow.com/questions/67786172

QUESTION

Python base32 decode result is different

Asked 2021-May-15 at 06:20

This question may sound stupid, but it had troubled me for days.

Basically, I used base64_b32decode() to decode a base32 (RFC 3548 / RFC4648) key in python.

The result is b'\x07\xe7\xabN\xe9\x15k\xb9\x1eC\x0eR\x1a\xd3\xcd\xb09` F'

However, when I used this website to decode the key.

The website's result is 07 e7 ab 4e e9 15 6b b9 1e 43 0e 52 1a d3 cd b0 39 60 20 46.

The problem is I don't know why does python returned 'abN' when the website showed 'ab'. Mind the additional N in the string.

I mean ... why does python returned extra characters and also it seems to me that there are still b0 39 60 20 46 byte missing.

Am I doing something wrong?

Python Code:

...

ANSWER

Answered 2021-May-15 at 06:18

Those strings are identical. The value of the ASCII character N is 0x4E, and the last for (0x39 0x60 0x20 0x46) are "9" "space" "space" "F". When Python prints a byte string, it prints all normal characters as normal characters, and the non-printable characters show up as hex escapes. Use

Source https://stackoverflow.com/questions/67543796

QUESTION

Decrypting ZigBee paquets

Asked 2021-Feb-19 at 08:39

I would like to decrypt Zigbee paquets from a Xiaomi Aqara switch. Here is the raw encrypted frame I sniffed on a network:

Raw encrypted frame

...

ANSWER

Answered 2021-Feb-19 at 08:39

The algorithm is AES-128-CCM*, detailed in the section 4.3.1.1 and annex A of the ZigBee specification.

Detailed answer with the frame in the question: https://lucidar.me/en/zigbee/zigbee-frame-encryption-with-aes-128-ccm/

Source https://stackoverflow.com/questions/66156637

QUESTION

Elixir: Base64 decode TTN message

Asked 2020-Aug-08 at 11:05

objective:

I'm getting a base64 encoded raw payload from the things network. I'm trying to decode that on my server instead of using their javascript payload decoders.

The hex encoded message is: AWYQkQCsCPMANA==

what works:

My usual decoding goes like this:

...

ANSWER

Answered 2020-Aug-08 at 11:05

Turns out I need to Base16 encode the decoded Base64 to get an actual String.

Source https://stackoverflow.com/questions/63314076

QUESTION

Why doesn't my C# code produce the same output when using AES CBC 128bit encryption as this website: https://cryptii.com/pipes/aes-encryption

Asked 2020-Jun-02 at 15:01

This is what I want to achieve using AES 128bit CBC encryption converted to hexadecimal: "30487A117196A34DE5ADCD679BA0FE71". I can achieve this when I use the website: https://cryptii.com/pipes/aes-encryption

I am however not able to achieve this using C#. Here is the code I am using:

...

ANSWER

Answered 2020-Jun-02 at 15:01

I used PKCS7 padding for the encryption (was using Zeros)

Source https://stackoverflow.com/questions/62148470

QUESTION

How can I automatically show the result of a JavaScript function on a HTML form, when I change the input?

Asked 2020-Apr-08 at 21:21

I have a javascript variable with parameters, but I don't know how to pass it into my html code. The javascript code is taken from https://gist.github.com/EvanHahn/2587465:

...

ANSWER

Answered 2020-Apr-08 at 21:21

You need to prevent the default event after clicking the button.

Source https://stackoverflow.com/questions/61108704

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

Vulnerabilities

No vulnerabilities reported

Install cryptii

Use the live version
Download the latest stable release or other releases
Clone the repository: git clone git@github.com:cryptii/cryptii.git
Build project locally: Ensure you have Node.js of version specified in .nvmrc installed. Install dependencies: npm ci Run build tasks: npm run build Run build tasks on file change: npm run watch
Contribute to the project or report an issue

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