(Chilkat2-Python) Hash Binary Data (SHA256 and other hash algorithms)

Demonstrates how to hash binary bytes using SHA256, SHA384, SHA512, MD2, MD5, HAVAL, RIPEMD, etc.

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

# This example requires the Chilkat Crypt API to have been previously unlocked.
# See Unlock Chilkat Crypt for sample code.

# Let's load a binary file to get the bytes..
jpgData = chilkat2.BinData()
success = jpgData.LoadFile("qa_data/jpg/starfish.jpg")
if (success != True):
    print("Failed to load file.")
    sys.exit()

# jpgBytes is a memoryview
jpgBytes = jpgData.GetBinary()

crypt = chilkat2.Crypt2()

# Choose the hash algorithm.
# Can be  "sha1", "sha256", "sha384", "sha512", "md2", "md5", "haval", "ripemd128", "ripemd160","ripemd256", or "ripemd320".
crypt.HashAlgorithm = "sha256"

# hashBytes is a memoryview
hashBytes = crypt.HashBytes(jpgBytes)

# Let's examine the hash as a hex string.
sb = chilkat2.StringBuilder()
sb.AppendEncoded(hashBytes,"hex")
print("SHA256 hash = " + sb.GetAsString())

# We could alternatively hash the bytes and receive the hex result directly:
crypt.EncodingMode = "hex"
hashHexStr = crypt.HashBytesENC(jpgBytes)
print("SHA256 hash = " + hashHexStr)