public-key-encryption

I am writing a .NET client app that consumes a Java web service and need to sign sent requests (related to this other question ). I have been supplied with a private.key file (and a .X509 certificate) and a Java source example. The certificate looks like the public key of service, and the private.key is what I use to sign requests. In the Java source, I can see they convert the file to a byte array and pass it into the constructor of the PKCS8EncodedKeySpec class. A bit of googling suggests this file is a private key hash (though I may be wrong). Is there any way to use this in .Net or convert

I wonder if PHP's OpenSSL extension can be used to generate private/public key/certificate pairs? Sure, use openssl_pkey_new : $privateKey = openssl_pkey_new(array('private_key_bits' => 2048)); $details = openssl_pkey_get_details($privateKey); $publicKey = $details['key']; You can export the keys with openssl_pkey_export or openssl_pkey_export_to_file . I really appreciate the answer from phihag but was still struggling. Ultimately, this helped: $privateKeyResource = openssl_pkey_new([ 'private_key_bits' => 2048, 'private_key_type' => OPENSSL_KEYTYPE_RSA ]); // Save the private key to a file.

I want to encrypt a message such as 'HELO1234 and then decrypt to get the original one.I have written RSA code in matlab which is not working correctly. PARAMETER CALCULATION temp=1; range=1:10; k=isprime(range) prime_mat=range(find(k)) p=randsample(prime_mat,1); q=randsample(prime_mat,1); if(p~=q) n=p*q; phi_n=(p-1)*(q-1); u=1:phi_n -1; end while temp enckey=randsample(u,1); deckey=randsample(u,1); if(enckey~=deckey) if(gcd(enckey,phi_n)~=1 ... && gcd(deckey,phi_n)~=1 ... &&gcd(enckey*deckey,phi_n)~=1) temp=1; else temp=0; end end end ENCRYPTION PROCESS char t= 'hello123'; t=uint8(t); len

I am working on a java-project where I should implement the SSL-protokol on the server-side. Well, this is the first time I will use SSL in my application, so I read a lot about ssl/tls and now I want to implement something in java. I will implement this process using JSSE API: 1) client will connect to me 2) I will make authentification with my pubic key certificate. I means that I will send the client a public key and its corresponding certificate 3) the client encrypt the secret-key using my public key and RSA-algorithm and send it to me I have already the private key and certificate saved

I'm looking to generate a rsa public key (pem) from both the modulus and exponent in Objective-C. This function can be done in Java by the following; PublicKey publicKey = KeyFactory.getInstance("RSA").generatePublic(new RSAPublicKeySpec(modulus, exponent)); Although I'm having some trouble writing this for the iOS platform. Am aware of OpenSSL , but I couldn't find a successful method and am still unable to generate this key. Also took a look at SCZ-BasicEncodingRules-iOS but this returns a NSData value and I'm stuck trying to figure out how to try convert it to a NSString. If you want to

In SoapUI tool I've configured .Jks file with Outgoing WS-Security Configurations Signature is BinarySecurityToken and algorithm is CanonicalizationMethod and SignatureMethod it is working perfectly. Now I try to consume from C# code as below : SprintApiService.QueryCsaPortTypeClient client = new QueryCsaPortTypeClient(); ClientCredentials ce = new ClientCredentials(); string fileName = Server.MapPath(""); fileName = fileName + "/test-01.pfx"; ce.ClientCertificate.Certificate = new X509Certificate2(fileName, "tag123"); var val = ce.ClientCertificate.Certificate.GetSerialNumber(); ce

I am working on a client server based application. Where I get PublicKey in this format as I saved it into String. Now I want to use this key in my Android(Java code), how can I use this ? First you need to generate the public key from the pem format you provided, here is my method for doing this: /** * * @param PEMString -A file/string in .pem format with a generated RSA key (with "des3", using "openssl genrsa".) * @param isFilePath - If it's a file path or a string * @return java.security.PublicKey * @throws IOException -No key found * @throws NoSuchAlgorithmException * @throws