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BigCodeBench / BigCodeBench v0.1.0_hf 254ae628-419f-53ab-93de-2031fc42676f

Problem

Answer published by the source. Consult the official source to check your work against its answer.

complete prompt

import numpy as np
import base64
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.asymmetric import padding


def task_func(num, from_base, to_base, private_key, alphabet):
    """
    Converts a number from one base to another, signs it with a private RSA key,
    and encodes the signed number in base64 using a custom alphabet.

    Parameters:
    - num (str): The number to be converted, represented as a string.
    - from_base (int): The base of the number to be converted.
    - to_base (int): The base to convert the number to.
    - private_key (Any): The private RSA key for signing. The type hint is `Any` due to the dynamic nature of key objects.
    - alphabet (str): A string representing the custom alphabet for base64 encoding.

    Returns:
    - str: The base64-encoded signed number.

    Example:
    >>> from cryptography.hazmat.backends import default_backend
    >>> from cryptography.hazmat.primitives.asymmetric import rsa
    >>> private_key = rsa.generate_private_key( \
            public_exponent=65537, \
            key_size=2048, \
            backend=default_backend() \
        )
    >>> alphabet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+/"
    >>> encoded = task_func('A1', 16, 8, private_key, alphabet)
    >>> print(encoded)
        XMBRyV7pyHXbaojpPuA3iv42nL5AVNukWQjfG48OnojFHtklqZuEgYoOwUZiQAj/dUxXANzzHuKjGRoPcuN5An7J7Gs8pEfEnOmnJfJgGLeiBgAXUeBl5aUTDoMIzBt5exSJWnNC1h5KXp+dDCpB4Hz3qIqdHyqHGNBExXZcEDOW6bEvF+rQOoQpxUJ6Xh3M/46i0g+vSDVyxLxurZpfVNQjEkrV8IlQXXdHoy4ciUC4YrwM0FrdM1BIWdzrhL9k6NfJeI96rabT8xHLrnZDH57mJqWBhpywVFtB7BEnqND70T0fpauFKtuaiA3jc+IydFC+lvodTWe3LiqI2WBsQw==
    >>> isinstance(encoded, str)
    True
    
    Requirements:
    - numpy
    - cryptography.hazmat.primitives.hashes
    - cryptography.hazmat.primitives.asymmetric.padding
    - base64

    Note:
    - The function assumes that the provided number can be successfully converted from the specified source base to the target base.
    - The RSA private key must be generated and provided to sign the converted number.
    - The custom alphabet for base64 encoding allows for flexibility in encoding schemes.
    """

instruct prompt

Converts a number from one base to another, signs it with a private RSA key, and encodes the signed number in base64 using a custom alphabet.
Note that: The function assumes that the provided number can be successfully converted from the specified source base to the target base. The RSA private key must be generated and provided to sign the converted number. The custom alphabet for base64 encoding allows for flexibility in encoding schemes.
The function should output with:
    str: The base64-encoded signed number.
You should write self-contained code starting with:

Code

import numpy as np
import base64
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.asymmetric import padding
def task_func(num, from_base, to_base, private_key, alphabet):

code prompt

Code

import numpy as np
import base64
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.asymmetric import padding
def task_func(num, from_base, to_base, private_key, alphabet):

entry point

task_func

libs

  • base64
  • numpy
  • cryptography

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Source and history

task_id
254ae628-419f-53ab-93de-2031fc42676f
task_key
default--v0~2e1~2e0~5fhf--254ae628-419f-53ab-93de-2031fc42676f
task_revision_id
1
config / split
default / v0.1.0_hf

Official source

initial import