Enum SigningKey 

pub enum SigningKey<'a> {
    RsaPem(&'a str),
    Rsa(&'a PrivateKey),
    Ed25519(&'a [u8; 32]),
}

The private key a signature is made with.

Variants

RsaPem(&'a str)

PKCS#8 or PKCS#1 PEM-encoded RSA private key, parsed each time.

Rsa(&'a PrivateKey)

An RSA private key parsed once by PrivateKey::from_pem.

Ed25519(&'a [u8; 32])

A raw 32-byte Ed25519 seed.