Java Pkcs 11 Generate Key Pair Free
| packagecom.ilirium.client; |
| importjava.io.ByteArrayOutputStream; |
| importjava.io.FileNotFoundException; |
| importjava.io.FileOutputStream; |
| importjava.io.IOException; |
| importjava.io.PrintStream; |
| importjava.math.BigInteger; |
| importjava.security.InvalidKeyException; |
| importjava.security.KeyPair; |
| importjava.security.KeyPairGenerator; |
| importjava.security.NoSuchAlgorithmException; |
| importjava.security.PublicKey; |
| importjava.security.SecureRandom; |
| importjava.security.Signature; |
| importjava.security.SignatureException; |
| importjava.util.Base64; |
| importsun.security.util.DerOutputStream; |
| importsun.security.x509.AlgorithmId; |
| importsun.security.x509.X500Name; |
| /** |
| * |
| * @author [email protected] |
| */ |
| publicclassCertificateSigningRequestUsingSunJDK { |
| publicstaticvoidmain(String[] args) throwsNoSuchAlgorithmException, IOException, InvalidKeyException, SignatureException { |
| // generate RSA key pair |
| KeyPair keypair = generateKeyPair(); |
| // create Certficate Request Info |
| X500Name x500Name =newX500Name('CN=Test,OU=Test,O=Test,L=Test,S=Test,C=Test'); |
| byte[] certReqInfo = createCertificationRequestInfo(x500Name, keypair.getPublic()); |
| // generate Signature over Certficate Request Info |
| String algorithm ='SHA1WithRSA'; |
| Signature signature =Signature.getInstance(algorithm); |
| signature.initSign(keypair.getPrivate()); |
| signature.update(certReqInfo); |
| byte[] certReqInfoSignature = signature.sign(); |
| // create PKCS#10 Certificate Signing Request (CSR) |
| byte[] csrDEREncoded = createCertificationRequestValue(certReqInfo, algorithm, certReqInfoSignature); |
| String csrPEMEncoded = createPEMFormat(csrDEREncoded); |
| // write to file |
| writeToFile(csrDEREncoded, 'D:csr.der'); |
| writeToFile(csrPEMEncoded.getBytes(), 'D:csr.pem'); |
| } |
| privatestaticKeyPairgenerateKeyPair() throwsNoSuchAlgorithmException { |
| KeyPairGenerator keyGen =KeyPairGenerator.getInstance('RSA'); |
| keyGen.initialize(2048, newSecureRandom()); |
| KeyPair keypair = keyGen.generateKeyPair(); |
| return keypair; |
| } |
| publicstaticStringcreatePEMFormat(byte[] data) { |
| finalByteArrayOutputStream out =newByteArrayOutputStream(); |
| finalPrintStream ps =newPrintStream(out); |
| ps.println('-----BEGIN NEW CERTIFICATE REQUEST-----'); |
| ps.println(Base64.getMimeEncoder().encodeToString(data)); |
| ps.println('-----END NEW CERTIFICATE REQUEST-----'); |
| return out.toString(); |
| } |
| publicstaticbyte[] createCertificationRequestInfo(X500Namex500Name, PublicKeypublicKey) throwsIOException { |
| finalDerOutputStream der1 =newDerOutputStream(); |
| der1.putInteger(BigInteger.ZERO); |
| x500Name.encode(der1); |
| der1.write(publicKey.getEncoded()); |
| // der encoded certificate request info |
| finalDerOutputStream der2 =newDerOutputStream(); |
| der2.write((byte) 48, der1); |
| return der2.toByteArray(); |
| } |
| publicstaticbyte[] createCertificationRequestValue(byte[] certReqInfo, StringsignAlgo, byte[] signature) throwsIOException, NoSuchAlgorithmException { |
| finalDerOutputStream der1 =newDerOutputStream(); |
| der1.write(certReqInfo); |
| // add signature algorithm identifier, and a digital signature on the certification request information |
| AlgorithmId.get(signAlgo).encode(der1); |
| der1.putBitString(signature); |
| // final DER encoded output |
| finalDerOutputStream der2 =newDerOutputStream(); |
| der2.write((byte) 48, der1); |
| return der2.toByteArray(); |
| } |
| privatestaticvoidwriteToFile(byte[] data, Stringfile) throwsFileNotFoundException, IOException { |
| try (FileOutputStream out =newFileOutputStream(file)) { |
| out.write(data); |
| } |
| } |
| } |
Jun 28, 2012 i have rsa key pair generated in HSM PKCS#11 and i want to create a PKCS#10 certificate request (CSR) however, bouncycastle opensource java requires Publickey and privateKey, i can retrieve the modulus and exponent from HSM to form the public key again but what about the Private key? Hello,I'am testing your IDPrime 840(Applet ver: Id Prime Java Card 4.1.2 F) and 841(Applet ver: Id Prime Java Card 4.0.2 K) smart cards. I received the information that in order to generate keys (for example RSA) or use the remaining crypto possibilities of the card, I should use the PKCS # 11 libraries.
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