private-key

When I try to make ECC private key from byte array, I get exception mentioned below. I have public/private keys and out signed output from C library micro-ecc/uECC.h. C used secp192r1 curve. I am trying to verify data with C generated keys in Java. How to convert byte array to private/public key? Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); byte[] kb = new byte[]{(byte)0x24, (byte)0xF4, (byte)0x36, (byte)0x16, (byte)0xD0, (byte)0x96, (byte)0x12, (byte)0x63, (byte)0x90, (byte)0x2E, (byte)0x51, (byte)0xF6, (byte)0x87, (byte)0x55, (byte)0xAB, (byte)0xCB, (byte

I have a X509Certificate2 variable and I'm trying to cast the private key of the variable to a RSACryptoServiceProvider RSACryptoServiceProvider pkey = (RSACryptoServiceProvider)cert.PrivateKey; However I get this exception. System.InvalidCastException: 'Unable to cast object of type 'System.Security.Cryptography.RSACng' to type 'System.Security.Cryptography.RSACryptoServiceProvider'.' It's weird that this happens because other answers in SO suggested the same procedure as mine but I get an exception. Any solutions to this? So after a few tries and discussions in the comments I came up with

I am new to cryptopp and have been struggling for a while with the creation of private keys for ECDSA signing. I have a hex encoded private exponent E4A6CFB431471CFCAE491FD566D19C87082CF9FA7722D7FA24B2B3F5669DBEFB . This is stored as a string. I want to use this to sign a text block using ECDSA. My code looks a bit like this string Sig::genSignature(const string& privKeyIn, const string& messageIn) { AutoSeededRandomPool prng; ECDSA<ECP, SHA256>::PrivateKey privateKey; privateKey.AccessGroupParameters().Initialize(ASN1::secp256r1()); privateKey.Load(StringSource(privKeyIn, true, NULL).Ref());

I need to create a RSAParameters object in .Net using a private and public key (.key and .cer file). Is it possible to do this in .Net without the use of third party software? If so, where should I be looking. I ultimately need to extract the Exponent, Modulus, D, P, Q, DP, DQ, InverseQ from this object in order to create a keyblob for a cryptoServer. Thanks! ".key" and ".cer" file extensions are in no way an unambiguous specification of how the keys are encoded. However, it is plausible that the ".cer" file is an X.509 certificate, which contains (among many other things) the public key;

I'm trying to connect to my server using the atom package "Remote-FTP" and using a private key. I have the SSH keys set up on my server and can connect successfully using putty. The private key is saved in my project folder and I have an existing .ftpconfig file (without a private key) that connects successfully when I replace the information inside the file. The Key has been converted to the necessary ssh format and I have no passphrase at the moment. I have also gave the full path of the private key file Here is my .ftpconfig file - { "protocol": "sftp", "host": "user@server", "port": 22,

I have certificate created using java class CertAndKeyGen and X500Name and I am able to generate the certificate which is in byte array. Now I want the private key I used in certificate and convert it into readable format. Below is the code I used to create the certificate, CertAndKeyGen keypair = new CertAndKeyGen("RSA", "SHA1WithRSA", null); X500Name x500Name = new X500Name(commonName, organizationalUnit, organization, city, state, country); keypair.generate(keysize); PrivateKey privKey = keypair.getPrivateKey(); PKCS10 certReq = keypair.getCertRequest(x500Name); X509Certificate[] chain =