Warning:

To protect the digital assets of creators and enhance system security and stability, the CyberBrick Multi-Function Core Board does not support firmware flashing with any third-party tools! If you need to restore the Multi-Function Core Board to its factory state, please wait for the official recovery tool to be released by CyberBrick. If you proceed to flash the firmware using third-party tools, the firmware of the Multi-Function Core Board will be permanently damaged and cannot be recovered. CyberBrick will not be responsible for any consequences resulting from such operations.

This documentation is adapted from the official MicroPython project. The CyberBrick team has extended the source code with custom interfaces and features to our hardware and application needs.

In addition to these enhancements, certain built-in MicroPython interfaces have been intentionally disabled to protect the system's integrity, and ensure the overall security and reliability of the device. This also facilitates content protection for creators' intellectual property, where applicable.

Portions of the content are derived from the official MicroPython documentation and have been included here under its open-source license to provide users with a consistent and enriched development experience tailored to the CyberBrick platform.

hashlib – hashing algorithms

This module implements a subset of the corresponding CPython module, as described below. For more information, refer to the original CPython documentation: hashlib.

This module implements binary data hashing algorithms. The exact inventory of available algorithms depends on a board. Among the algorithms which may be implemented:

• SHA256 - The current generation, modern hashing algorithm (of SHA2 series). It is suitable for cryptographically-secure purposes. Included in the MicroPython core and any board is recommended to provide this, unless it has particular code size constraints.

• SHA1 - A previous generation algorithm. Not recommended for new usages, but SHA1 is a part of number of Internet standards and existing applications, so boards targeting network connectivity and interoperability will try to provide this.

• MD5 - A legacy algorithm, not considered cryptographically secure. Only selected boards, targeting interoperability with legacy applications, will offer this.

Constructors

class hashlib.sha256([data])

Create an SHA256 hasher object and optionally feed data into it.

class hashlib.sha1([data])

Create an SHA1 hasher object and optionally feed data into it.

class hashlib.md5([data])

Create an MD5 hasher object and optionally feed data into it.

Methods

hash.update(data)

Feed more binary data into hash.

hash.digest()

Return hash for all data passed through hash, as a bytes object. After this method is called, more data cannot be fed into the hash any longer.

hash.hexdigest()

This method is NOT implemented. Use binascii.hexlify(hash.digest()) to achieve a similar effect.