com.cedarsoft.crypt

Class X509Support

java.lang.Object

com.cedarsoft.crypt.X509Support

public class X509Support
extends Object

X509 Support

Author:

Johannes Schneider (js@cedarsoft.com)

Field Summary

Fields

Modifier and Type	Field and Description
static String	RSA
static String	SHA_256_WITH_RSA
static String	X_509_CERTIFICATE_TYPE

Constructor Summary

Constructors

Constructor and Description
X509Support(URL certificate) Creates a new X509 support without any signing capabilities
X509Support(URL certificate, URL privateKey) Creates a new X509 support
X509Support(X509Certificate certificate) Creates a new x509 support
X509Support(X509Certificate certificate, RSAPrivateKey privateKey) Creates a new x509 support

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	cipher(byte[] plainText) cipher
byte[]	decipher(byte[] bytes) decipher
X509Certificate	getCertificate() Returns the certificate
RSAPrivateKey	getPrivateKey() Returns the private key (if there is one)
boolean	isPrivateKeyAvailable() Returns whether the private key is available
static X509Certificate	readCertificate(URL certificateUrl) Reads the x509 certificate from the given url
static RSAPrivateKey	readPrivateKey(URL privateKeyUrl) Reads a private key form a url
Signature	sign(byte[] plainText) sign
boolean	verifySignature(byte[] plainText, Signature signature) verifySignature

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

RSA

@Nonnull
public static final String RSA

See Also:

Constant Field Values

SHA_256_WITH_RSA

@Nonnull
public static final String SHA_256_WITH_RSA

See Also:

Constant Field Values

X_509_CERTIFICATE_TYPE

@Nonnull
public static final String X_509_CERTIFICATE_TYPE

See Also:

Constant Field Values

Constructor Detail

X509Support

public X509Support(@Nonnull
           URL certificate)
            throws IOException,
                   GeneralSecurityException

Creates a new X509 support without any signing capabilities

Parameters:

certificate - the certificate

Throws:

IOException - if any.

GeneralSecurityException - if any.

X509Support

@Inject
public X509Support(@Nonnull
                  URL certificate,
                  @PrivateKeyUrl@Nullable
                  URL privateKey)
            throws IOException,
                   GeneralSecurityException

Creates a new X509 support

Parameters:

certificate - the certificate

privateKey - the private key (if available)

Throws:

IOException - if any.

GeneralSecurityException - if any.

X509Support

public X509Support(@Nonnull
           X509Certificate certificate)

Creates a new x509 support

Parameters:

certificate - the certificate

X509Support

public X509Support(@Nonnull
           X509Certificate certificate,
           @Nullable
           RSAPrivateKey privateKey)

Creates a new x509 support

Parameters:

certificate - the certificate

privateKey - the (optional) private key

Method Detail

isPrivateKeyAvailable

public boolean isPrivateKeyAvailable()

Returns whether the private key is available

Returns:

whether the private key is available

cipher

@Nonnull
public byte[] cipher(@Nonnull
                    byte[] plainText)
              throws GeneralSecurityException

cipher

Parameters:

plainText - an array of byte.

Returns:

an array of byte.

Throws:

GeneralSecurityException - if any.

decipher

@Nonnull
public byte[] decipher(@Nonnull
                      byte[] bytes)
                throws GeneralSecurityException

decipher

Parameters:

bytes - an array of byte.

Returns:

an array of byte.

Throws:

GeneralSecurityException - if any.

sign

@Nonnull
public Signature sign(@Nonnull
                     byte[] plainText)
               throws GeneralSecurityException

sign

Parameters:

plainText - an array of byte.

Returns:

a Signature object.

Throws:

GeneralSecurityException - if any.

verifySignature

public boolean verifySignature(@Nonnull
                      byte[] plainText,
                      @Nonnull
                      Signature signature)
                        throws GeneralSecurityException

verifySignature

Parameters:

plainText - an array of byte.

signature - a Signature object.

Returns:

a boolean.

Throws:

GeneralSecurityException - if any.

getCertificate

@Nonnull
public X509Certificate getCertificate()

Returns the certificate

Returns:

the certificate

getPrivateKey

@Nonnull
public RSAPrivateKey getPrivateKey()

Returns the private key (if there is one)

Returns:

the private key

readPrivateKey

@Nullable
public static RSAPrivateKey readPrivateKey(@Nullable
                                    URL privateKeyUrl)
                                    throws IOException,
                                           GeneralSecurityException

Reads a private key form a url

Parameters:

privateKeyUrl - the url containing the private key

Returns:

the read private key

Throws:

IOException - if any.

GeneralSecurityException - if any.

readCertificate

@Nonnull
public static X509Certificate readCertificate(@Nonnull
                                      URL certificateUrl)
                                       throws IOException,
                                              GeneralSecurityException

Reads the x509 certificate from the given url

Parameters:

certificateUrl - the certificate url

Returns:

the certificate

Throws:

IOException - if any.

GeneralSecurityException - if any.