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java.lang.Object | +--net.rim.device.api.crypto.PKCS1FormatterEngine
The PKCS1FormatterEngine class provides the PKCS1 encoding functionality on a block
by block basis. The block length is the size of the modulus of an
EncryptorEngine minus the overhead.
We implemented the PKCS1 formatter engine as per the PKCS #1 version 2.1 document.
For a code sample using the PKCS1 formatter engine, click here.
For information on cryptographic algorithms, see Crypto Algorithms.
PKCS1UnformatterEngine| Constructor Summary | ||
|
PKCS1FormatterEngine(PublicKeyEncryptorEngine encryptorEngine)
Creates a PKCS1FormatterEngine object that takes a
PublicKeyEncryptorEngine object
that will be used for encrypting the ciphertext. |
|
| Method Summary | ||
|
int |
formatAndEncrypt(byte[] input,
int inputOffset,
int inputLength,
byte[] output,
int outputOffset)
Formats the input into the proper format and then encrypts it, assuming this is not the last block to be encrypted. |
|
int |
formatAndEncrypt(byte[] input,
int inputOffset,
int inputLength,
byte[] output,
int outputOffset,
boolean lastBlock)
Formats the input into the proper format and then encrypts it. |
|
String |
getAlgorithm()
Returns the name of the algorithm used, ie PublicKeyEncryptorEngine.getAlgorithm() + "_PKCS1". |
|
int |
getInputBlockLength()
Returns the length of an input block in bytes. |
|
int |
getOutputBlockLength()
Returns the length of an output block in bytes. |
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public PKCS1FormatterEngine(PublicKeyEncryptorEngine encryptorEngine)
PKCS1FormatterEngine object that takes a
PublicKeyEncryptorEngine object
that will be used for encrypting the ciphertext.
encryptorEngine - The private key engine to encrypt the data with.| Method Detail |
public int formatAndEncrypt(byte[] input,
int inputOffset,
int inputLength,
byte[] output,
int outputOffset)
throws MessageTooLongException,
CryptoTokenException
BlockFormatterEngine
BlockFormatterEngineinput - A byte array containing the data to be encrypted.inputOffset - The offset, or initial bit position, of the data within the byte array.inputLength - The amount of data to encrypt.output - A byte array to hold the encoded and encrypted data.outputOffset - The offset, or initial bit position, of the data within the byte array.MessageTooLongException - Thrown if the input is too long to be encoded
with the given encoding scheme.CryptoTokenException - Thrown when a problem occurs with a crypto token or the crypto token is invalid.
public int formatAndEncrypt(byte[] input,
int inputOffset,
int inputLength,
byte[] output,
int outputOffset,
boolean lastBlock)
throws MessageTooLongException,
CryptoTokenException
BlockFormatterEngine
BlockFormatterEngineinput - A byte array containing the data to be encrypted.inputOffset - The offset, or initial bit position, of the data within the byte array.inputLength - The amount of data to encrypt.output - A byte array to hold the encoded and encrypted data.outputOffset - The offset, or initial bit position, of the data within the byte array.lastBlock - A boolean that indicates the last block
to be encrypted.MessageTooLongException - Thrown if the input is too long to be encoded
with the given encoding scheme.CryptoTokenException - Thrown when a problem occurs with a crypto token or the crypto token is invalid.public String getAlgorithm()
PublicKeyEncryptorEngine.getAlgorithm() + "_PKCS1".
public int getInputBlockLength()
BlockFormatterEngine
BlockFormatterEnginepublic int getOutputBlockLength()
BlockFormatterEngine
BlockFormatterEngine
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