EncryptionNonce
12-byte AES-GCM encryption nonce
12-byte AES-GCM encryption nonce used for calldata encryption.
Definition
class EncryptionNonce(_SizedHexBytes):
_size = 12Construction
Parameter
Type
Required
Description
val
bytes | str | int
Yes
Hex string, raw bytes, or integer
Raises ValueError if length is not exactly 12 bytes.
Example
import os
from seismic_web3 import EncryptionNonce
nonce = EncryptionNonce(os.urandom(12))
print(nonce.to_0x_hex())Auto-generation
In most cases you don't need to create nonces manually — the SDK generates a random one automatically. Only provide explicit nonces when testing with specific values or implementing custom encryption flows.
See Also
SeismicElements — uses EncryptionNonce
SeismicSecurityParams — optional nonce override
Bytes32 — 32-byte type
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