/// <summary>
/// 获得待计算签名的字符串
/// </summary>
/// <param name="canonicalRequest">canonicalRequest 字符串</param>
/// <param name="formattedSigningDateTime">签名时间信息</param>
/// <param name="scope">签名 scope 信息</param>
/// <param name="signingAlgorithm">jd cloud signing algorithm</param>
/// <returns>计算签名的字符串</returns>
public static string CreateStringToSign(string canonicalRequest,
string formattedSigningDateTime, string scope, string signingAlgorithm)
{
string stringToSign = new StringBuilder(signingAlgorithm)
.Append(ParameterConstant.LINE_SEPARATOR)
.Append(formattedSigningDateTime)
.Append(ParameterConstant.LINE_SEPARATOR)
.Append(scope)
.Append(ParameterConstant.LINE_SEPARATOR)
.Append(StringUtils.ByteToHex(SignUtil.SignHash(canonicalRequest), true))
.ToString();
return(stringToSign);
}
/// <summary>
/// 计算http content SHA256 hash 校验值
/// </summary>
/// <param name="content">http 请求body信息</param>
/// <returns>计算后的16进制加密的 content 信息</returns>
public static string CalculateContentHash(byte[] content)
{
try
{
if (content == null || content.Length <= 0)
{
content = new byte[0];
}
string contentSha256 = StringUtils.ByteToHex(SignUtil.SignHash(content), true);
return(contentSha256);
}
catch (Exception ex)
{
throw new Exception("get the request content sha256 error", ex);
}
}
/// <summary>
/// 计算签名
/// </summary>
/// <param name="stringToSign">需要签名的字符串</param>
/// <param name="signingKey">签名使用的key</param>
/// <returns>签名后的字节数组信息</returns>
public static byte[] ComputeSignature(string stringToSign, byte[] signingKey)
{
byte[] stringToSignBytes = System.Text.Encoding.UTF8.GetBytes(stringToSign);
return(SignUtil.Sign(stringToSignBytes, signingKey, ParameterConstant.SIGN_SHA256));
}
