verify

pub fn verify(cb: Bundle, subject: Certificate.Parsed, now_sec: i64) VerifyError!void {
    const bytes_index = cb.find(subject.issuer()) orelse return error.CertificateIssuerNotFound;
    const issuer_cert: Certificate = .{
        .buffer = cb.bytes.items,
        .index = bytes_index,
    };
    // Every certificate in the bundle is pre-parsed before adding it, ensuring
    // that parsing will succeed here.
    const issuer = issuer_cert.parse() catch unreachable;
    try subject.verify(issuer, now_sec);
}