private-key

问题 I am trying to get a better grapple on how public/private keys work. I understand that a sender may add a digital signature to a document using his/her private key to essentially obtain a hash of the document, but what I do not understand is how the public key can be used to verify that signature. My understanding was that public keys encrypt, private keys decrypt... can anyone help me understand? 回答1: Your understanding of "public keys encrypt, private keys decrypt" is correct... for data

问题 I am trying to add a private key into the iOS keychain. The certificate (public key) works fine but the private key refuses... I am totally confused why the following code does not work. First I am checking if the current key (=key in case of that the Keychain is a key/value store) is 'free' in the Keychain. Then I am going to add the private key. CFStringRef labelstring = CFStringCreateWithCString(NULL, [key cStringUsingEncoding:NSUTF8StringEncoding], kCFStringEncodingUTF8); NSArray* keys =

问题 I try to decrypt the encrypted private key string which like this -----BEGIN ENCRYPTED PRIVATE KEY----- MIIFHDBO... -----END ENCRYPTED PRIVATE KEY----- And I also remove the head and the foot. But it throws the exception: Exception in thread "main" java.io.IOException: ObjectIdentifier() -- data isn't an object ID (tag = 48) at sun.security.util.ObjectIdentifier.<init>(ObjectIdentifier.java:257) at sun.security.util.DerInputStream.getOID(DerInputStream.java:314) at com.sun.crypto.provider

问题 I use openssl in C++ , copy the PrivateKey and PublicKey file content to two const char*, but I see the demo of api is only get pem public/private key from a pem file,so how can I get a public/private key from a string? 回答1: Try this: char* mKey="-----BEGIN RSA PRIVATE KEY-----\nMIICXAIBAAKBgQCDT4ntP3Fqj73RQW32B6hCDHMG64GtxeQDZ5BcQnQSRB3S/EwM\ngpZwuGYwTb7E65pdAAQ0e5na2d7yIGZX4MoDRGaDbYgdxr49J430cVLRU1r9EW+O\nqZQERyGYefxWOqBaNZL2PBclS/qf+AxRh1WnD8aY5V5zNItgVV4Bv9w4YQIDAQAB

问题 I have installed certificate on local machine store (win7) with private key. In c# code I do that: X509Certificate2 cert = null; var store = new X509Store(storeName, storeLocation); store.Open(OpenFlags.ReadOnly); try { var result = store.Certificates.Find(X509FindType.FindByThumbprint, thumbprint, false); ServicePointManager.Expect100Continue = true; ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls; ServicePointManager.ServerCertificateValidationCallback = delegate { return

问题 I have a RSA private key stored as a String that I need to convert into a PrivateKey object for use with an API. I can find examples of people converting from a private-key file to a string but not the other way around. I managed to convert it to a PrivateKey object but it was in PKCS8, when I need it to be PKCS1, and I know Java doesn't have PKCS1EncodedKeySpec byte[] key64 = Base64.decodeBase64(privateKeyString.getBytes()); KeyFactory keyFactory = KeyFactory.getInstance("RSA"); KeySpec

问题 I think I messed up something simple, normally you should be able to instantly connect to your Vagrant VM using vagrant ssh . However, it's currently different for me. C:\Users\Sem\Documents\timeline>vagrant ssh Enter passphrase for key 'C:/Users/Sem/Documents/timeline/.vagrant/machines/default/virtualbox/private_key': vagrant@127.0.0.1's password: vagrant@127.0.0.1's password: vagrant@127.0.0.1's password: Permission denied (publickey,password). I found one other person having the same issue

问题 I'm following below tutorial. https://www.digitalocean.com/community/tutorials/how-to-set-up-ssh-keys--2 It's generated file on Windows 10 C:\Users\<user name>\.ssh I'm using GIT to generate files. ~/Desktop $ PermitRootLogin without-password bash: PermitRootLogin: command not found $ ssh a@b.com a@b.com's password: Permission denied, please try again. I have generated .ppk file using puttygen.exe . Still not able to connect to server. By doing ssh -Tv a@b.com It will give below response

问题 I have a C# app that connects to a SFTP server to transfer log files. The app achieves this by using WinSCP .NET assembly to connect to the server. How do I securely store the .ppk private key file such that the user is not able to take this file to access the SFTP for themselves? http://winscp.net/eng/docs/library#csharp Based on the way the library reference the .ppk , it may not be possible to avoid storing the .ppk file on the local disk during run-time? Thanks in advance. 回答1: There's

问题 οκ!I want to establish a client server communication oves SSL/TLS in java. The server is multithreaded. With openssl I acted as my own CA (created private key and self-signed certificate for the authority). Now I want to create keys and certs for my server and clients which are signed from the CA I created. 1)Do I have to create certs and keys from the prompt for every single client? Or is it another "automated" way eg with a script? 2) I have seen that this code for setting up keystores