graphenebase.memo module¶
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graphenebase.memo.
decode_memo
(priv, pub, nonce, message)¶ Decode a message with a shared secret between Alice and Bob
Parameters: - priv (PrivateKey) – Private Key (of Bob)
- pub (PublicKey) – Public Key (of Alice)
- nonce (int) – Nonce used for Encryption
- message (bytes) – Encrypted Memo message
Returns: Decrypted message
Return type: str
Raises: ValueError – if message cannot be decoded as valid UTF-8 string
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graphenebase.memo.
encode_memo
(priv, pub, nonce, message)¶ Encode a message with a shared secret between Alice and Bob
Parameters: - priv (PrivateKey) – Private Key (of Alice)
- pub (PublicKey) – Public Key (of Bob)
- nonce (int) – Random nonce
- message (str) – Memo message
Returns: Encrypted message
Return type: hex
Derive the share secret between
priv
andpub
Parameters: Returns: Shared secret
Return type: hex
The shared secret is generated such that:
Pub(Alice) * Priv(Bob) = Pub(Bob) * Priv(Alice)
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graphenebase.memo.
init_aes
(shared_secret, nonce)¶ Initialize AES instance
Parameters: - shared_secret (hex) – Shared Secret to use as encryption key
- nonce (int) – Random nonce
Returns: AES instance
Return type: AES