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atoponce/sha256-crypto.py

Last active April 17, 2025 00:56
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Encryption and decryption with SHA-256
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sha256-crypto.py
#!/usr/bin/python
import hashlib
nonce = 0
key = 'f3q4uszyt67cfatq'
pad = hashlib.sha256(str(nonce)+key).digest()
# encrypt
plaintext = 'the quick brown fox jumped over.'
ciphertext = ''
for i in range(32):
ciphertext += chr(ord(pad[i])^ord(plaintext[i]))
# ciphertext = '\x1bf\x13\r\x0c\xc4\x18`\x129\x16\x12|\x96\xa7\xc2\xf5E_\x97\xc2\x010\x88]j\xce\xe3x\x14\xe8\xb6'
# decrypt
plaintext = ''
for i in range(32):
plaintext += chr(ord(pad[i]^ord(ciphertext[i]))
# plaintext = 'the quick brown fox jumped over.'
@Saitech07
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Can anyone please decrypt the below given string for me I have tried many ways.

748c46b945efabb18ef1e793b3af886518042522d55121dbf618e9da0816ec5a

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