{"id":27483,"date":"2022-08-30T21:08:54","date_gmt":"2022-08-30T15:38:54","guid":{"rendered":"https:\/\/python-programs.com\/?p=27483"},"modified":"2022-08-30T21:08:54","modified_gmt":"2022-08-30T15:38:54","slug":"hashlib-sha3_256-in-python","status":"publish","type":"post","link":"https:\/\/python-programs.com\/hashlib-sha3_256-in-python\/","title":{"rendered":"Python hashlib.sha3_256() Function"},"content":{"rendered":"
Python hashlib Module:<\/strong><\/p>\n To generate a message digest or secure hash from the source message, we can utilize the Python hashlib library.<\/p>\n The hashlib module is required to generate a secure hash message in Python.<\/p>\n The hashlib hashing function in Python takes a variable length of bytes and converts it to a fixed-length sequence. This function only works in one direction. This means that when you hash a message, you obtain a fixed-length sequence. However, those fixed-length sequences do not allow you to obtain the original message.<\/p>\n A hash algorithm is considered better in cryptography if the original message cannot be decoded from the hash message. Changing one byte in the original message also has a big impact(change) on the message digest value.<\/p>\n Python secure hash values are used to store encrypted passwords. So that even the application’s owner does not have access to the user’s password, passwords are matched when the user enters the password again, and the hash value is calculated and compared to the stored value.<\/p>\n Hashing Algorithms That Are Available:<\/strong><\/p>\n Output:<\/strong><\/p>\n Functions:<\/strong><\/p>\n You only need to know a few functions to use the Python hashlib module.<\/p>\n We can convert a normal string in byte format to an encrypted form using the hashlib.sha3_256() function. Passwords and important files can be hashed to secure them using the hashlib.sha3_256() method.<\/p>\n Syntax:<\/strong><\/p>\n Return Value:<\/strong><\/p>\n The hash code for the string given is returned by the sha3_256() function.<\/p>\n Shortly after the discovery of cost-effective brute force operations against SHA-1, SHA-2 was created. It is a family of two similar hash algorithms, SHA-256 and SHA-512, with varying block sizes.<\/p>\n Algorithm – digest size (the larger the better):<\/strong><\/p>\n MD5 –> 128 bits Here, we encrypt the byte string or passwords to secure them using the hashlib.sha3_256() function.<\/p>\n Approach:<\/strong><\/p>\n Below is the implementation:<\/strong><\/p>\n Output:<\/strong><\/p>\n Approach:<\/strong><\/p>\n Below is the implementation:<\/strong><\/p>\n Output:<\/strong><\/p>\n Python hashlib Module: To generate a message digest or secure hash from the source message, we can utilize the Python hashlib library. The hashlib module is required to generate a secure hash message in Python. The hashlib hashing function in Python takes a variable length of bytes and converts it to a fixed-length sequence. This …<\/p>\n\n
import hashlib\r\n# Printing list of all the algorithms\r\nprint(hashlib.algorithms_available)\r\n# Viewing algorithms\r\nprint(hashlib.algorithms_guaranteed)<\/pre>\n
{'sha384', 'blake2s', 'sha3_384', 'sha224', 'md5', 'shake_256', 'blake2b', 'sha3_512', 'sha1', 'shake_128', 'sha512', 'sha3_256', 'sha256', 'sha3_224'}\r\n{'sha384', 'blake2s', 'sha3_384', 'sha224', 'md5', 'shake_256', 'blake2b', 'sha3_512', 'sha1', 'shake_128', 'sha512', 'sha3_256', 'sha256', 'sha3_224'}<\/pre>\n
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hashlib.sha3_256() Function:<\/strong><\/h3>\n
hashlib.sha3_256()<\/pre>\n
Differences<\/h2>\n
\n
\nSHA-1 –> 160 bits
\nSHA-256 –> 256 bits
\nSHA-512 –> 512 bits<\/p>\nhashlib.sha3_256() Function in Python<\/h2>\n
Method #1: Using sha3_256() Function (Static Input)<\/h3>\n
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# Import hashlib module using the import keyword\r\nimport hashlib\r\n\r\n# Creating a reference\/Instance variable(Object) for the hashlib module and \r\n# call sha3_256() function and store it in a variable\r\nobj = hashlib.sha3_256()\r\n\r\n# Give the string as static input(here b represents byte string) and store it in another variable.\r\ngvn_str = b'Python-programs'\r\n\r\n# Call the update() function using the above created object by passing the above given string as \r\n# an argument to it\r\n# Here it converts the given string in byte format to an encrypted form.\r\nobj.update(gvn_str)\r\n# Get the secure hash using the digest() function.\r\nprint(obj.digest())<\/pre>\n
b'\\xf7\\x97[\\xc6b{ua\\x90bn\\xbb\\xf54\\xc4$\\xab\\x08\\xde\\xe6\\x11\\xb3\\xd3\\xca\\x99_\\x89\\x0b\\xa99>\\x9c'<\/pre>\n
Method #2: Using sha3_256() Function (User Input)<\/h3>\n
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# Import hashlib module using the import keyword\r\nimport hashlib\r\n\r\n# Creating a reference\/Instance variable(Object) for the hashlib module and \r\n# call sha3_256() function and store it in a variable\r\nobj = hashlib.sha3_256()\r\n\r\n# Give the string as user input using the input() function and store it in another variable.\r\ngvn_str = input(\"Enter some random string = \")\r\n# Convert the given string into byte string using the bytes() function by passing given string, \r\n# 'utf-8' as arguments to it \r\ngvn_str=bytes(gvn_str, 'utf-8')\r\n\r\n# Call the update() function using the above created object by passing the above given string as \r\n# an argument to it\r\n# Here it converts the given string in byte format to an encrypted form.\r\nobj.update(gvn_str)\r\n# Get the secure hash using the digest() function.\r\nprint(obj.digest())<\/pre>\n
Enter some random string = welcome to Python-programs\r\nb'\\xd2\\xd5!\\xb3\\xe4\\xfaM\\x93<\/8#\\xf7\\xa1\\xdb\\xces\\nE^\\xc1\\xb2ukW\\x8eF\\x8e\\xa0y\\x8c\\x05'<\/pre>\n","protected":false},"excerpt":{"rendered":"