/// <summary>
/// 文加密
/// 使用场景：1.商户请求掌上生活
/// 2.商户响应掌上生活
/// </summary>
/// <param name="encryptBody">需要加密的字符串</param>
/// <param name="xmlPublicKey">加密使用的Key，为掌上生活RSA公钥</param>
/// <returns>密文</returns>
public static string Encrypt(string encryptBody, string xmlPublicKey)
{
if (string.IsNullOrEmpty(encryptBody))
{
throw new ArgumentException("报文不能为空!");
}
if (string.IsNullOrEmpty(xmlPublicKey))
{
throw new ArgumentException("公钥不能为空!");
}
string aesKey = AesUtils.GenAesKey();
string aesEncryptedBody = AesUtils.Encrypt(encryptBody, aesKey);
// TODO 需要先base64Decode
string encryptedAesKey = RsaUtils.Encrypt(Convert.FromBase64String(aesKey), xmlPublicKey);
return(encryptedAesKey + "|" + aesEncryptedBody);
}
/// <summary>
/// 验签
/// </summary>
/// <param name="verifyBody">待验签的数据</param>
/// <param name="sign">签名</param>
/// <param name="xmlPublicKey">验签所使用的Key，为掌上生活公钥</param>
/// <param name="signAlgorithm">签名算法（SHA1WithRSA 或 SHA256WithRSA）</param>
/// <returns>true为验签成功，false为验签失败</returns>
public static bool Verify(string verifyBody, string sign, string xmlPublicKey, string signAlgorithm)
{
if (string.IsNullOrEmpty(verifyBody))
{
throw new ArgumentException("验签数据不能为空!");
}
if (string.IsNullOrEmpty(sign))
{
throw new ArgumentException("签名不能为空!");
}
if (string.IsNullOrEmpty(xmlPublicKey))
{
throw new ArgumentException("公钥不能为空!");
}
if (string.IsNullOrEmpty(signAlgorithm))
{
throw new ArgumentException("验签算法不能为空!");
}
return(RsaUtils.Verify(verifyBody, sign, xmlPublicKey, signAlgorithm));
}
