cryptography.hazmat.primitives.asymmetric.ed448
Ed448 is an elliptic curve signing algorithm using EdDSA.
>>> from cryptography.hazmat.primitives.asymmetric.ed448 import Ed448PrivateKey >>> private_key = Ed448PrivateKey.generate() >>> signature = private_key.sign(b"my authenticated message") >>> public_key = private_key.public_key() >>> # Raises InvalidSignature if verification fails >>> public_key.verify(signature, b"my authenticated message")
2.6
generate()
Generate an Ed448 private key.
- returns
Ed448PrivateKey
from_private_bytes(data)
- param data
57 byte private key.
- type data
bytes-like
- returns
Ed448PrivateKey
public_key()
- returns
Ed448PublicKey
sign(data)
- param bytes data
The data to sign.
- returns bytes
The 114 byte signature.
private_bytes(encoding, format, encryption_algorithm)
Allows serialization of the key to bytes. Encoding ( ~cryptography.hazmat.primitives.serialization.Encoding.PEM
, ~cryptography.hazmat.primitives.serialization.Encoding.DER
, or ~cryptography.hazmat.primitives.serialization.Encoding.Raw
) and format ( ~cryptography.hazmat.primitives.serialization.PrivateFormat.PKCS8
or ~cryptography.hazmat.primitives.serialization.PrivateFormat.Raw
) are chosen to define the exact serialization.
- param encoding
A value from the
~cryptography.hazmat.primitives.serialization.Encoding
enum.- param format
A value from the
~cryptography.hazmat.primitives.serialization.PrivateFormat
enum. If theencoding
is~cryptography.hazmat.primitives.serialization.Encoding.Raw
thenformat
must be~cryptography.hazmat.primitives.serialization.PrivateFormat.Raw
, otherwise it must be~cryptography.hazmat.primitives.serialization.PrivateFormat.PKCS8
.- param encryption_algorithm
An instance of an object conforming to the
~cryptography.hazmat.primitives.serialization.KeySerializationEncryption
interface.- return bytes
Serialized key.
2.6
from_public_bytes(data)
- param bytes data
57 byte public key.
- returns
Ed448PublicKey
public_bytes(encoding, format)
Allows serialization of the key to bytes. Encoding ( ~cryptography.hazmat.primitives.serialization.Encoding.PEM
, ~cryptography.hazmat.primitives.serialization.Encoding.DER
, or ~cryptography.hazmat.primitives.serialization.Encoding.Raw
) and format ( ~cryptography.hazmat.primitives.serialization.PublicFormat.SubjectPublicKeyInfo
or ~cryptography.hazmat.primitives.serialization.PublicFormat.Raw
) are chosen to define the exact serialization.
- param encoding
A value from the
~cryptography.hazmat.primitives.serialization.Encoding
enum.- param format
A value from the
~cryptography.hazmat.primitives.serialization.PublicFormat
enum. If theencoding
is~cryptography.hazmat.primitives.serialization.Encoding.Raw
thenformat
must be~cryptography.hazmat.primitives.serialization.PublicFormat.Raw
, otherwise it must be~cryptography.hazmat.primitives.serialization.PublicFormat.SubjectPublicKeyInfo
.- returns bytes
The public key bytes.
verify(signature, data)
- param bytes signature
The signature to verify.
- param bytes data
The data to verify.
- raises cryptography.exceptions.InvalidSignature
Raised when the signature cannot be verified.