static ED25519_PUB_KEY: &[u8] = &[
    0x30, 0x2a, 0x30, 0x05, 0x06, 0x03, 0x2b, 0x65,
    0x70, 0x03, 0x21, 0x00, 0xd4, 0xb3, 0x1b, 0xa4,
    0x9a, 0x3a, 0xdd, 0x3f, 0x82, 0x5d, 0x10, 0xca,
    0x7f, 0x31, 0xb5, 0x0b, 0x0d, 0xe8, 0x7f, 0x37,
    0xcc, 0xc4, 0x9f, 0x1a, 0x40, 0x3a, 0x5c, 0x13,
    0x20, 0xff, 0xb4, 0xe0,
];