digital-signature

来源： https://stackoverflow.com/questions/46331902/signing-a-powershell-script-with-self-signed-certificates-and-without-makecert

来源： https://stackoverflow.com/questions/62813684/integrate-signed-hash-into-original-pdf

来源： https://stackoverflow.com/questions/58663814/encrypt-with-private-key-and-decrypt-with-public-key-in-rsa

来源： https://stackoverflow.com/questions/58663814/encrypt-with-private-key-and-decrypt-with-public-key-in-rsa

问题 I am a software developer in charge of a project to digitally sign text files with PCKS#7. There is a third party in charge of analysing the signed file to tell us if it's correct or not. The issue I'm having is that they say the signer info does not contain a timestamp. They assured me I do not need to hire an outside trusted server for the timestamp, that the server's timestamp would be enough. I have scoured the internet and came up with the following code to try and add the timestamp but

问题 I am a software developer in charge of a project to digitally sign text files with PCKS#7. There is a third party in charge of analysing the signed file to tell us if it's correct or not. The issue I'm having is that they say the signer info does not contain a timestamp. They assured me I do not need to hire an outside trusted server for the timestamp, that the server's timestamp would be enough. I have scoured the internet and came up with the following code to try and add the timestamp but

问题 I am a software developer in charge of a project to digitally sign text files with PCKS#7. There is a third party in charge of analysing the signed file to tell us if it's correct or not. The issue I'm having is that they say the signer info does not contain a timestamp. They assured me I do not need to hire an outside trusted server for the timestamp, that the server's timestamp would be enough. I have scoured the internet and came up with the following code to try and add the timestamp but

问题 Is there a way to sign the hash of an xml file and then integrate this signed hash into the original file. For the PDF signature I use iText and it works very well. UPDATE 1 : Sign Original XML FILE public class SignXML { static String fileToSign = "B:/tmp/client/032936.xml"; static String signedFile = "B:/tmp/client/Signed-032936.xml"; static String certificate = "C:/lp7command/tools/certificate.p12"; static String password = "123456"; public static void main(String[] args) throws Exception{

问题 This question is the continuation of that one. I also try to communicate with a 3rd party AS2 server. I use the same code as the author of that post. This code (the corrected version) is: private byte[] Sign(byte[] content) { CmsSigner cmsSigner = new CmsSigner(_cert); cmsSigner.SignedAttributes.Add(new Pkcs9SigningTime(DateTime.Now)); SignedCms signedCms = new SignedCms(new ContentInfo(content)); signedCms.ComputeSignature(cmsSigner, true); return signedCms.Encode(); } But I get the

问题 This question is the continuation of that one. I also try to communicate with a 3rd party AS2 server. I use the same code as the author of that post. This code (the corrected version) is: private byte[] Sign(byte[] content) { CmsSigner cmsSigner = new CmsSigner(_cert); cmsSigner.SignedAttributes.Add(new Pkcs9SigningTime(DateTime.Now)); SignedCms signedCms = new SignedCms(new ContentInfo(content)); signedCms.ComputeSignature(cmsSigner, true); return signedCms.Encode(); } But I get the