Function createSigner

createSigner(
    publicKey?: null | string | Buffer<ArrayBufferLike> | KeyObject,
    privateKey?: null | string | Buffer<ArrayBufferLike> | KeyObject,
    keyType?: null | "ed25519" | "ed448",
    opts?: IEddsaOptions,
): ISigner
Create a new EDDSA signer instance.
Parameters
- publicKey: null | string | Buffer<ArrayBufferLike> | KeyObject = null
  The public key to use for verification, or null to create a signer without a public key.
- privateKey: null | string | Buffer<ArrayBufferLike> | KeyObject = null
  The private key to use for signing, or null to create a verifier without a private key.
- keyType: null | "ed25519" | "ed448" = null
  The key algorithm to use, or null to use the algorithm of the key.
- Optionalopts: IEddsaOptions
  Optional options for the signer, such as key passphrase.
Returns ISigner
A new EDDSA signer instance.

Throws
E_NO_KEY_PROVIDED If neither publicKey nor privateKey is provided.

Throws
E_INVALID_PUBLIC_KEY If the provided public key is invalid or not of type 'ed25519' or 'ed448'.

Throws
E_INVALID_PRIVATE_KEY If the provided private key is invalid or not of type 'ed25519' or 'ed448'.

Throws
E_KEY_TYPE_MISMATCH If the types of the key pair do not match.
- Defined in src/lib/EDDSA.ts:106