Enc | idiomatic way to encode , decode and hashing | Hashing library
kandi X-RAY | Enc Summary
kandi X-RAY | Enc Summary
An idiomatic way to encode/decode (using key or to base64) or hashing strings.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Enc
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QUESTION
Is a simple way to convert pdf to html using pdfminer? I have seen many questions like this but they won't give me a right answer...
I have entered this in my ConEmu prompt:
...ANSWER
Answered 2020-Dec-31 at 10:17In regards to your second code snippet with the ImportError: cannot import name 'process_pdf' from 'pdfminer.pdfinterp'
I suggest checking this GitHub issue.
Apparently process_pdf()
has been replaced by PDFPage.get_pages()
. The functionality is nearly the same (with the parameters you used (rsrcmgr, device, in_file, pagenos=[1,3,5], maxpages=9)
it works!) hence check the implementation on-site.
QUESTION
I receive data from a third party at an API that contains encrypted data. They provided me with a Passphrase do decrypt the content of the Json file, but I do not get any result; so they provided me with the code they generate the encryption which is written in VB.NET:
...ANSWER
Answered 2021-Jun-11 at 06:29The VB code derives the key from the passhprase with MD5. TripleDES (aka 3DES) with a 16 bytes key (2TDEA) is used as the algorithm. ECB is applied as the mode. A possible decryption with CryptoJS is:
QUESTION
Hello I am working on a problem with scala/spark project trying to do some computation my scala code works well on spark-shell but when try to run the same code with sbt-assembly to convert scala to .jar file, I face this error:
Unable to find encoder for type AccessLog. An implicit Encoder[AccessLog] is needed to store AccessLog instances in a Dataset. Primitive types (Int, String, etc) and Product types (case classes) are supported by importing spark.implicits._ Support for serializing other types will be added in future releases.
I am trying to convert Dataset[List[String]] to be Dataset[AccessLog] AccessLog is a case class, by mapping it using.
The code that generates the error:
...ANSWER
Answered 2021-May-29 at 16:05To solve the compilation error, the case class should be defined outside of the method run
.
Instead of
QUESTION
I am training a machine learning model to predict housing prices for my home country. I was unsure on how to apply one hot encoding to my data: so I copied the code from here: One Hot Encoded Labels back to DataFrame.
It appears to work well, except that my other labels are now getting replaced by NaN. Before applying the One Hot Encoding, and after I apply one hot encoding, this is the output
The code I have used is as follows:
...ANSWER
Answered 2021-Jun-06 at 10:01You are getting this issue due to index being different.
Your ds
may have different index (not starting from 0 and continuous) but your one hot label dataframe is starting from 0 and continuous.
So when you are going for concatenation. Since indices are not same you are getting nan there.
Please check the shape also to confirm whether the issue due to indices mismatch or not.
To solve:
QUESTION
I have this code in Java that generates a SHA256 hash:
Hashing.sha256().hashString(value,Charsets.UTF_16LE).toString()
I'm trying to do the same on JavaScript/Node, that having the same value
returns the same result.
I tried usind crypto-js
but without success (it returns a hash string but different from the one generated with the Java code).
I tried this, for example:
...ANSWER
Answered 2021-Jun-05 at 11:34Can you try something like this :-
QUESTION
I am trying to make a discord.py bot right now and I want the ability to let the user encode and decode text, however from what I am looking at you can only do text that is in quotes, is there a way for me to pass in a variable? Also this was written in a cog. Here is my code.
...ANSWER
Answered 2021-Jun-05 at 04:14You you just want to convert string to hex. First you need to convert it to bytes. This can be done by using string method .encode()
. Then you can convert it to hex by using .hex()
method.
QUESTION
ANSWER
Answered 2021-Jun-04 at 02:10I want to send the messages as numbers without enc-dec to string.
Do you understand why encoding and decoding is necessary? Data is passed through networks as bytes. Applications are responsible for translating bytes to and from higher level data structures. To be very blunt, you cannot send/receive messages without encoding and decoding to bytes.
QUESTION
I am searching for all files in WAV format and create from them a single output file, like this:
...ANSWER
Answered 2021-Jun-02 at 22:46Do not use for file in $something
. Read https://mywiki.wooledge.org/BashFAQ/001
Check your scripts with https://shellcheck.net
To handle whitespace use zero separated streams.
In shell, try to write one long pipelines. Along:
QUESTION
I am using the below script: -
...ANSWER
Answered 2021-Jun-02 at 17:24The error message seems fairly straight-forward to me: the key size you used isn't supported by that library. In fact, you appear to have only pasted part of the message, which goes on to list the key sizes which are supported: https://github.com/phpseclib/phpseclib/blob/7e38313802b62606cf27ddf573a7c47e88b5d33f/phpseclib/Crypt/AES.php#L118
'Key of size ' . strlen($key) . ' not supported by this algorithm. Only keys of sizes 16, 24 or 32 supported'
So your problem is not understanding what the PHP can do, but understanding what the JS is doing with your input.
The clue to that is in the CryptoJS docs:
CryptoJS supports AES-128, AES-192, and AES-256. It will pick the variant by the size of the key you pass in. If you use a passphrase, then it will generate a 256-bit key.
So the library agrees that there are three valid key lengths, but supports passing in a "passphrase" instead which will be used to generate a key. The exact algorithm it uses to do that isn't documented; presumably it uses some Key Derivation Function with fixed parameters, so that the same passphrase will always produce the same key. If you really need to emulate it, you'll need to trace through the source code.
If you just need code that's compatible with both libraries, generate a random key of one of the supported lengths, and use that in both places.
QUESTION
This is a 4 year old nodejs project I took over, and I was asked to refactor it using golang, but in the refactoring I found that the nodejs encryption was deprecated. And, I don't know which mode of AES is used to encrypt this code
Can any expert help me to see how to decrypt this nodejs encryption with golang? Thank you very much!
Encryption code for nodejs :
...ANSWER
Answered 2021-May-27 at 15:36The deprecated methods crypto.createCipher()
and crypto.createDecipher()
apply the proprietary OpenSSL function EVP_BytesToKey()
to derive a 32 bytes key and a 16 bytes IV from a password. No salt is used, the digest MD5 and an iteration count of 1. This algorithm is very insecure, which is why both methods are deprecated.
The posted code applies aes-256-cbc
(i.e. AES-256 in CBC mode) and just this key derivation to derive a key/IV pair. Since the key derivation does not use a salt, always the same ciphertext results for the same plaintext and password. E.g. for:
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