JavaScript

RSA Encrypt and OpenSSL Decrypt

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Demonstrates how to use Chilkat to RSA encrypt, and then use OpenSSL to decrypt. JavaScript

var success = false;

// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

var rsa = new CkRsa();

var privKey = new CkPrivateKey();
success = rsa.GenKey(2048,privKey);
success = privKey.SavePkcs8PemFile("qa_output/privKey.pem");

var pubKey = new CkPublicKey();
privKey.ToPublicKey(pubKey);

rsa.EncodingMode = "base64";
var plainText = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234567890";
var bUsePrivateKey = false;
rsa.UsePublicKey(pubKey);
var encryptedStr = rsa.EncryptStringENC(plainText,bUsePrivateKey);

var bd = new CkBinData();
bd.AppendEncoded(encryptedStr,"base64");
success = bd.WriteFile("qa_output/enc.dat");

// The OpenSSL command to decrypt is:
// openssl pkeyutl -in enc.dat -inkey privKey.pem -keyform PEM -pkeyopt rsa_padding_mode:pkcs1 -decrypt

console.log("OK");