List of usage examples for org.bouncycastle.asn1.pkcs RSAPublicKey getPublicExponent
public BigInteger getPublicExponent()
From source file:com.android.verity.BootKey.java
License:Apache License
public BootKey(PublicKey key) throws Exception { java.security.interfaces.RSAPublicKey k = (java.security.interfaces.RSAPublicKey) key; this.keyMaterial = new RSAPublicKey(k.getModulus(), k.getPublicExponent()); this.algorithmIdentifier = new AlgorithmIdentifier(PKCSObjectIdentifiers.sha256WithRSAEncryption); }
From source file:io.apigee.trireme.crypto.algorithms.RsaKeyPairProvider.java
License:Open Source License
private PublicKey convertPublicKey(SubjectPublicKeyInfo pk) throws CryptoException, IOException { RSAPublicKey rsa = RSAPublicKey.getInstance(pk.parsePublicKey()); try {/*from ww w . j a va2 s. c om*/ KeyFactory factory = KeyFactory.getInstance("RSA"); RSAPublicKeySpec pubSpec = new RSAPublicKeySpec(rsa.getModulus(), rsa.getPublicExponent()); return factory.generatePublic(pubSpec); } catch (GeneralSecurityException gse) { throw new CryptoException(gse); } }
From source file:io.apigee.trireme.crypto.RSAConverter.java
License:Open Source License
public static PublicKey convertPublicKey(SubjectPublicKeyInfo pk) throws CryptoException, IOException { RSAPublicKey rsa = RSAPublicKey.getInstance(pk.parsePublicKey()); try {// w ww . j a v a 2s . c o m KeyFactory factory = KeyFactory.getInstance("RSA"); RSAPublicKeySpec pubSpec = new RSAPublicKeySpec(rsa.getModulus(), rsa.getPublicExponent()); return factory.generatePublic(pubSpec); } catch (GeneralSecurityException gse) { throw new CryptoException(gse); } }
From source file:net.wstech2.me.httpsclient.CertificateValidatorUtils.java
License:Apache License
/** * /* w w w . ja v a 2 s. co m*/ * Inspected and display various informations from the Certificate passed as * parameter. Keys are presented in HEX values and ASN1 structures dumped * using ASN1Dump.dumpAsString. * * This method is intended for debug purposes only. * * * @param cert * The X509CertificateStructure to be inspected. * */ public static void dumpCertificateInfo(org.bouncycastle.asn1.x509.Certificate cert) { boolean valid = false; TBSCertificate tbs = cert.getTBSCertificate(); RSAEngine engine = new RSAEngine(); SHA1Digest digest = new SHA1Digest(); GenericSigner signer = new GenericSigner((engine), digest); RSAPublicKey signingKey; try { signingKey = RSAPublicKey.getInstance(cert.getSubjectPublicKeyInfo().parsePublicKey()); HttpsConnectionUtils.logDebug("Public Key:[[" + cert.getSubjectPublicKeyInfo().parsePublicKey() + "]]"); RSAKeyParameters keySpec = new RSAKeyParameters(false, signingKey.getModulus(), signingKey.getPublicExponent()); signer.init(false, keySpec); HttpsConnectionUtils.logDebug("TBS DER object:[[" + tbs.getEncoded("DER") + "]]"); signer.update(tbs.getEncoded(), 0, tbs.getEncoded().length); valid = signer.verifySignature(cert.getSignature().getBytes()); HttpsConnectionUtils.logDebug("signer.verifySignature:[[" + valid + "]]"); SHA1Digest d2 = new SHA1Digest(); d2.update(tbs.getEncoded("DER"), 0, tbs.getEncoded("DER").length); byte[] hash = new byte[d2.getDigestSize()]; d2.doFinal(hash, 0); HttpsConnectionUtils.logDebug("tbs.getDEREncoded() HASH:[[" + new String(Hex.encode(hash)) + "]]"); DEROctetString asn1Hash = new DEROctetString(hash); HttpsConnectionUtils.logDebug( "ASN1 DEROctetString hash:[[" + new String(Hex.encode(asn1Hash.getEncoded("DER"))) + "]]"); d2 = new SHA1Digest(); d2.update(cert.getEncoded(), 0, cert.getEncoded().length); hash = new byte[d2.getDigestSize()]; d2.doFinal(hash, 0); HttpsConnectionUtils.logDebug("cert.getEncoded() HASH:[[" + new String(Hex.encode(hash)) + "]]"); byte[] signature = cert.getSignature().getBytes(); HttpsConnectionUtils .logDebug("cert.getSignature().getBytes():[[" + new String(Hex.encode(signature)) + "]]"); PKCS1Encoding engine2 = new PKCS1Encoding(new RSAEngine()); engine2.init(false, keySpec); byte[] decryptedHash = engine2.processBlock(signature, 0, signature.length); HttpsConnectionUtils.logDebug("decryptedHash:[[" + new String(Hex.encode(decryptedHash)) + "]]"); ASN1Object o = ASN1Primitive.fromByteArray(decryptedHash); HttpsConnectionUtils.logDebug( "decryptedHash.getDEREncoded():[[" + new String(Hex.encode(o.getEncoded("DER"))) + "]]"); HttpsConnectionUtils.logDebug( "ASN1Dump.dumpAsString(decryptedHash,true):[[" + ASN1Dump.dumpAsString(o, true) + "]]"); HttpsConnectionUtils.logDebug("engine.getInputBlockSize():[[" + engine2.getInputBlockSize() + "]]"); HttpsConnectionUtils.logDebug("engine.getOutputBlockSize():[[" + engine2.getOutputBlockSize() + "]]"); ASN1Sequence asn1SignSeq = (ASN1Sequence) ASN1Sequence.fromByteArray(decryptedHash); HttpsConnectionUtils .logDebug("Signature ASN1 Sequence:[[" + ASN1Dump.dumpAsString(asn1SignSeq, true) + "]]"); AlgorithmIdentifier algorithm = AlgorithmIdentifier.getInstance(asn1SignSeq.getObjectAt(0)); HttpsConnectionUtils.logDebug("AlgorithmIdentifier:[[" + ASN1Dump.dumpAsString(algorithm, true) + "]]"); DEROctetString signedHash = (DEROctetString) DEROctetString.getInstance(asn1SignSeq.getObjectAt(1)); HttpsConnectionUtils.logDebug("signedHash:[[" + ASN1Dump.dumpAsString(signedHash, true) + "]]"); } catch (Exception e) { e.printStackTrace(); } }
From source file:org.ebayopensource.fido.uaf.crypto.KeyCodec.java
License:Apache License
public static PublicKey getRSAPublicKey(byte[] encodedPubKey) throws IOException, NoSuchAlgorithmException, InvalidKeySpecException { RSAPublicKey pubKey8 = RSAPublicKey.getInstance(encodedPubKey); SubjectPublicKeyInfo info = SubjectPublicKeyInfoFactory.createSubjectPublicKeyInfo( new RSAKeyParameters(false, pubKey8.getModulus(), pubKey8.getPublicExponent())); X509EncodedKeySpec spec = new X509EncodedKeySpec(info.getEncoded()); KeyFactory keyFactory = KeyFactory.getInstance("RSA"); return keyFactory.generatePublic(spec); }
From source file:org.opcfoundation.ua.transport.security.BcCryptoProvider.java
License:Open Source License
public void encryptAsymm(PublicKey encryptingCertificate, SecurityAlgorithm algorithm, byte[] dataToEncrypt, byte[] output, int outputOffset) throws ServiceResultException { try {/*from ww w . j a va 2 s . c om*/ java.security.interfaces.RSAPublicKey encryptingCertificateRSA = (java.security.interfaces.RSAPublicKey) encryptingCertificate; RSAPublicKey publicKey = new RSAPublicKey(encryptingCertificateRSA.getModulus(), encryptingCertificateRSA.getPublicExponent()); AsymmetricBlockCipher cipher = getAsymmetricCipher(algorithm, publicKey); int len = 0; int inputBlockSize = cipher.getInputBlockSize(); int outputBlockSize = cipher.getOutputBlockSize(); logger.debug("Encrypt: inputBlockSize={}, outputBlockSize={}, dataToEncrypt.length={}", inputBlockSize, outputBlockSize, dataToEncrypt.length); for (int i = 0; i < dataToEncrypt.length; i += inputBlockSize) { int size = Math.min(dataToEncrypt.length - i, inputBlockSize); byte[] tmp = cipher.processBlock(dataToEncrypt, i, size); System.arraycopy(tmp, 0, output, outputOffset + len, tmp.length); len += tmp.length; } } catch (InvalidCipherTextException e) { throw new ServiceResultException(StatusCodes.Bad_InternalError, e); } }
From source file:org.opcfoundation.ua.transport.security.BcCryptoProvider.java
License:Open Source License
@Override public boolean verifyAsymm(PublicKey signingCertificate, SecurityAlgorithm algorithm, byte[] dataToVerify, byte[] signature) throws ServiceResultException { if (algorithm == null) return true; if (signingCertificate == null || dataToVerify == null || signature == null) throw new IllegalArgumentException("null arg"); java.security.interfaces.RSAPublicKey signingCertificateRSA = (java.security.interfaces.RSAPublicKey) signingCertificate; RSAPublicKey publicKey = new RSAPublicKey(signingCertificateRSA.getModulus(), signingCertificateRSA.getPublicExponent()); Signer signer = getAsymmetricSigner(false, algorithm, publicKey); signer.update(dataToVerify, 0, dataToVerify.length); return signer.verifySignature(signature); }
From source file:org.opcfoundation.ua.transport.security.BcCryptoProvider.java
License:Open Source License
private AsymmetricBlockCipher getAsymmetricCipher(SecurityAlgorithm algorithm, RSAPublicKey publicKey) throws ServiceResultException { CipherParameters params = new RSAKeyParameters(false, publicKey.getModulus(), publicKey.getPublicExponent()); // logger.info("Cipher: \nmodulus={}, \npublicExponent={}\n", // publicKey.getModulus(), publicKey.getPublicExponent()); return getAsymmetricCipher(true, algorithm, params); }
From source file:org.opcfoundation.ua.transport.security.BcCryptoProvider.java
License:Open Source License
private Signer getAsymmetricSigner(boolean forSigning, SecurityAlgorithm algorithm, RSAPublicKey publicKey) throws ServiceResultException { CipherParameters params = new RSAKeyParameters(false, publicKey.getModulus(), publicKey.getPublicExponent()); return getAsymmetricSigner(forSigning, algorithm, params); }
From source file:org.xipki.commons.security.pkcs12.P12KeypairGenerator.java
License:Open Source License
private KeyPairWithSubjectPublicKeyInfo genRSAKeypair(final int keysize, final BigInteger publicExponent, final SecureRandom random) throws Exception { KeyPair kp = KeyUtil.generateRSAKeypair(keysize, publicExponent, random); java.security.interfaces.RSAPublicKey rsaPubKey = (java.security.interfaces.RSAPublicKey) kp.getPublic(); SubjectPublicKeyInfo spki = new SubjectPublicKeyInfo( new AlgorithmIdentifier(PKCSObjectIdentifiers.rsaEncryption, DERNull.INSTANCE), new RSAPublicKey(rsaPubKey.getModulus(), rsaPubKey.getPublicExponent())); return new KeyPairWithSubjectPublicKeyInfo(kp, spki); }