42 lines
978 B
Python
42 lines
978 B
Python
import hashlib
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import base64
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import sslcrypto
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from Crypt import Crypt
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curve = sslcrypto.ecc.get_curve("secp256k1")
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def eciesEncrypt(data, pubkey, ciphername="aes-256-cbc"):
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ciphertext, key_e = curve.encrypt(
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data,
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base64.b64decode(pubkey),
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algo=ciphername,
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derivation="sha512",
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return_aes_key=True
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)
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return key_e, ciphertext
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@Crypt.thread_pool_crypt.wrap
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def eciesDecryptMulti(encrypted_datas, privatekey):
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texts = [] # Decoded texts
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for encrypted_data in encrypted_datas:
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try:
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text = eciesDecrypt(encrypted_data, privatekey).decode("utf8")
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texts.append(text)
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except:
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texts.append(None)
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return texts
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def eciesDecrypt(ciphertext, privatekey):
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return curve.decrypt(
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base64.b64decode(ciphertext),
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curve.wif_to_private(privatekey),
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derivation="sha512"
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)
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def split(ciphertext):
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return ciphertext[:16], ciphertext[86:-32]
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