工厂方法ECDiffieHellman.Create和ECDsa.Create之间的区别

Question

密钥对的生成之间是否存在差异

• ECDiffieHellman.Create Method
  创建椭圆曲线Diffie-Hellman（ECDH）算法实现的新实例
• ECDsa.Create Method
  创建椭圆曲线数字签名算法（ECDSA）实现的新实例

在名称空间System.Security.Cryptography中？

从技术上讲，创建的EC密钥对可以互换用于以太坊密钥的派生或签名。

{
    var ecDsa = ECDsa.Create(ECCurve.NamedCurves.brainpoolP512r1);
    var ecdh = ECDiffieHellman.Create();
    ecdh.ImportECPrivateKey(ecDsa.ExportECPrivateKey(), out _);

    ecDsa.ExportPkcs8PrivateKey().Should().BeEquivalentTo(ecdh.ExportPkcs8PrivateKey());
}
{
    var ecdh = ECDiffieHellman.Create(ECCurve.NamedCurves.brainpoolP512r1);
    var ecDsa = ECDsa.Create();
    ecDsa.ImportECPrivateKey(ecdh.ExportECPrivateKey(), out _);

    ecdh.ExportPkcs8PrivateKey().Should().BeEquivalentTo(ecDsa.ExportPkcs8PrivateKey());
}