org.xdi.oxauth.cert.fingerprint.FingerprintHelper クラス

org.xdi.oxauth.cert.fingerprint.FingerprintHelper 連携図

静的公開メンバ関数
static String	getPublicKeySshFingerprint (PublicKey publicKey) throws NoSuchAlgorithmException, IOException
static String	getPublicKeySshFingerprint (RSAPublicKey publicKey) throws NoSuchAlgorithmException, IOException

静的非公開メンバ関数
static byte []	getDerEncoding (RSAPublicKey key) throws IOException
static void	writeDataWithLength (byte[] data, DataOutput byteBuffer) throws IOException

静的非公開変数類
static final Logger	log = LoggerFactory.getLogger(FingerprintHelper.class)

詳解

Utility which help to calculate SSH RSA public key fingerprint

著者

Yuriy Movchan

バージョン

March 03, 2016

関数詳解

getDerEncoding()

static byte [] org.xdi.oxauth.cert.fingerprint.FingerprintHelper.getDerEncoding ( RSAPublicKey  key ) throws IOException

inlinestaticprivate

                                                                                  {
                ByteArrayOutputStream buffer = new ByteArrayOutputStream();
                DataOutputStream dataOutput = new DataOutputStream(buffer);
                writeDataWithLength("ssh-rsa".getBytes(), dataOutput);
                writeDataWithLength(key.getPublicExponent().toByteArray(), dataOutput);
                writeDataWithLength(key.getModulus().toByteArray(), dataOutput);

                return buffer.toByteArray();
        }

getPublicKeySshFingerprint() [1/2]

static String org.xdi.oxauth.cert.fingerprint.FingerprintHelper.getPublicKeySshFingerprint ( PublicKey  publicKey ) throws NoSuchAlgorithmException, IOException

inlinestatic

                                                                                                                          {
                if (publicKey instanceof RSAPublicKey) {
                        return getPublicKeySshFingerprint((RSAPublicKey) publicKey);
                }

                throw new NoSuchAlgorithmException("Unsopported PublicKey type");
        }

getPublicKeySshFingerprint() [2/2]

static String org.xdi.oxauth.cert.fingerprint.FingerprintHelper.getPublicKeySshFingerprint ( RSAPublicKey  publicKey ) throws NoSuchAlgorithmException, IOException

inlinestatic

                                                                                                                             {
                MessageDigest digest = MessageDigest.getInstance("MD5");

                byte[] derEncoded = getDerEncoding(publicKey);
                byte[] fingerprint = digest.digest(derEncoded);

                return Hex.encodeHexString(fingerprint);
        }

writeDataWithLength()

static void org.xdi.oxauth.cert.fingerprint.FingerprintHelper.writeDataWithLength ( byte []  data, DataOutput  byteBuffer  ) throws IOException

inlinestaticprivate

                                                                                                       {
                byteBuffer.writeInt(data.length);
                byteBuffer.write(data);
        }

メンバ詳解

log

final Logger org.xdi.oxauth.cert.fingerprint.FingerprintHelper.log = LoggerFactory.getLogger(FingerprintHelper.class)

staticprivate

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このクラス詳解は次のファイルから抽出されました:

• D:/AppData/OpenId/gluu/src/oxAuth/Server/src/main/java/org/xdi/oxauth/cert/fingerprint/FingerprintHelper.java