问题描述
此异常最近开始抛出,代码运行正常:
public byte[] Sign(CmsMessage cmsMessage,CspKeyInfo keyInfo)
{
ContentInfo contentInfo = new ContentInfo(new Oid(cmsMessage.ContentTypeOid),cmsMessage.Content);
var cspObj = new CspParameters()
{
ProviderName = keyInfo.ProviderName,ProviderType = keyInfo.ProviderType,KeyNumber = (int)KeyNumber.Signature,Flags = CspProviderFlags.UseExistingKey,KeyContainerName = keyInfo.ContainerName
};
var signer = new CmsSigner(cspObj)
{
DigestAlgorithm = new Oid(cmsMessage.SignerHashAlgorithmOid)
};
signer.SignedAttributes.Add(new Pkcs9SigningTime());
var signedCms = new SignedCms(contentInfo,cmsMessage.Detached);
signedCms.ComputeSignature(signer);
var encodeByteBlock = (ByteBlock)signedCms.Encode();
return encodeByteBlock;
}
signer
的{{1}}是SignerIdentifierType
但它抛出:SubjectKeyIdentifier
到CryptographicException
对象标识符的格式不正确
虚拟证书具有私钥(ComputeSignature
是HasPrivateKey
)
解决方法
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