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java.lang.Object
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+--java.io.OutputStream
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+--net.rim.device.api.crypto.CryptoOutputStream
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+--net.rim.device.api.crypto.EncryptorOutputStream
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+--net.rim.device.api.crypto.StreamEncryptor
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+--net.rim.device.api.crypto.ECIESEncryptor
ECIESEncryptor is a class used to encrypt messages with the Elliptic Curve Integrated Encryption Scheme ( ECIES ). It is described in ANSI X9.63.
Elliptic Curve cryptography is defined in various standards including P1363 and ANSI X9.62.
For information on cryptographic algorithms, see Crypto Algorithms.
Certicom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
ECIESDecryptor| Field Summary |
| Fields inherited from class net.rim.device.api.crypto.CryptoOutputStream |
_out |
| Constructor Summary | ||
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ECIESEncryptor(OutputStream out,
ECPublicKey recipientPublicKey)
Creates an ECIESEncryptor class. |
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ECIESEncryptor(OutputStream out,
ECPublicKey recipientPublicKey,
String macAlgorithm,
int macKeyLength,
byte[] additionalMACInfo,
int macLength,
byte[] additionalKDFInfo,
Digest kdfDigest,
boolean useCofactor)
Creates an ECIESEncryptor class. |
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| Method Summary | ||
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void |
close()
Closes the output stream. |
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protected void |
encrypt(byte[] plaintext,
int plaintextOffset,
int plaintextLength,
byte[] ciphertext)
Encrypts data using the specific implementation of the chosen stream encryptor. |
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String |
getAlgorithm()
Returns the name of this algorithm, namely "ECIES/" + macAlgorithm. |
| Methods inherited from class net.rim.device.api.crypto.StreamEncryptor |
flush, write |
| Methods inherited from class net.rim.device.api.crypto.CryptoOutputStream |
flush, getOutputStream, write, write |
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public ECIESEncryptor(OutputStream out, ECPublicKey recipientPublicKey) throws CryptoTokenException, CryptoUnsupportedOperationException, InvalidCryptoSystemException, IOException, NoSuchAlgorithmException
out - The output stream to write too.recipientPublicKey - The public key of the person this message will go to.CryptoTokenException - Thrown if a crypto token error occurs.CryptoUnsupportedOperationException - Thrown if the attempted operation is not supported.InvalidCryptoSystemException - Thrown if the crypto system has a problem with it.IOException - Thrown if there is a problem writing to the output streamNoSuchAlgorithmException - Thrown if the mac algorithm is not supportedCerticom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
public ECIESEncryptor(OutputStream out, ECPublicKey recipientPublicKey, String macAlgorithm, int macKeyLength, byte[] additionalMACInfo, int macLength, byte[] additionalKDFInfo, Digest kdfDigest, boolean useCofactor) throws CryptoTokenException, CryptoUnsupportedOperationException, InvalidCryptoSystemException, IOException, NoSuchAlgorithmException
out - The output stream to write too.recipientPublicKey - The public key of the person this message will go to.macAlgorithm - The MAC algorithm to use. If null, then "HMAC/SHA1" is used.macKeyLength - The length of the MAC key to use.additionalMACInfo - Additional mac information to provided to the MAC.additionalKDFInfo - Additional shared information to provide to the KDF.kdfDigest - Specifies the digest to use in the KDF. If null, then SHA1 is used.useCofactor - If this true, a the elliptic curve's cofactor is used in the calculations.
If false, the cofactor is not used. Note, setting this value to TRUE is the most common usage.CryptoTokenException - Thrown if a crypto token error occurs.CryptoUnsupportedOperationException - Thrown if the attempted operation is not supported.InvalidCryptoSystemException - Thrown if the crypto system has a problem with it.IOException - Thrown if there is a problem writing to the output streamNoSuchAlgorithmException - Thrown if the mac algorithm is not supportedCerticom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
| Method Detail |
public void close()
throws IOException
CryptoOutputStreamBefore closing the stream, it flushes out all of the data that is in the output stream.
See the flush() method for more information.
close in class CryptoOutputStream
CryptoOutputStreamIOException - Thrown if an I/O error occurs.Certicom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
protected void encrypt(byte[] plaintext,
int plaintextOffset,
int plaintextLength,
byte[] ciphertext)
throws CryptoTokenException
StreamEncryptorencrypt in class StreamEncryptor
StreamEncryptorplaintext - A byte array containing the input to the stream cipher.plaintextOffset - The offset, or initial position within the array, of the information to encrypt.length - The length of the information to encrypt.ciphertext - A byte array to hold the output of the stream cipher.CryptoTokenException - Thrown when a problem occurs with the crypto token
or the crypto token is invalid.Certicom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
public String getAlgorithm()
"ECIES/" + macAlgorithm.getAlgorithm in class CryptoOutputStream
CryptoOutputStreamCerticom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
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