AccountEd25519Signature class

Ed25519 signature for Soroban authorization entries.

This class encapsulates a cryptographic signature used to prove authorization in Soroban transactions. Each signature consists of:

• Public key: The Ed25519 public key that signed the data
• Signature bytes: The 64-byte Ed25519 signature

Signatures are automatically generated when signing authorization entries via SorobanAuthorizationEntry.sign(). The signature format conforms to Stellar's Ed25519 signature scheme.

The signature is serialized to XdrSCVal as a map with two entries:

• "public_key": The 32-byte public key
• "signature": The 64-byte signature

Fields:

• publicKey The Ed25519 public key in XDR format
• signatureBytes The 64-byte signature

Example - Usage in authorization:

// Create authorization entry
final authEntry = simulation.getSorobanAuth()![0];

// Sign with keypair (signature created automatically)
authEntry.sign(signerKeyPair, network);

// The signature is embedded in the auth entry credentials
final credentials = authEntry.credentials.innerAddressCredentials;
print('Signature embedded in auth entry');

Example - Manual signature construction (advanced):

// Typically not needed - use authEntry.sign() instead
final publicKey = signerKeyPair.xdrPublicKey;
final signatureBytes = signerKeyPair.sign(payload);

final signature = AccountEd25519Signature(publicKey, signatureBytes);
final scVal = signature.toXdrSCVal();

See also:

• SorobanAuthorizationEntry.sign for signing auth entries
• KeyPair.sign for creating signatures

Constructors

AccountEd25519Signature(XdrPublicKey publicKey, Uint8List signatureBytes)

Creates an AccountEd25519Signature.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

publicKey ↔ XdrPublicKey

The Ed25519 public key that created this signature.

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

signatureBytes ↔ Uint8List

The 64-byte Ed25519 signature bytes.

getter/setter pair

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

toXdrSCVal() → XdrSCVal

Converts this signature to XdrSCVal format for Soroban.

Operators

operator ==(Object other) → bool

The equality operator.

inherited