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Bouncy Castle Cryptography 1.45 | ||||||||
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java.lang.Objectorg.bouncycastle.crypto.encodings.OAEPEncoding
public class OAEPEncoding
Optimal Asymmetric Encryption Padding (OAEP) - see PKCS 1 V 2.
| Constructor Summary | |
|---|---|
OAEPEncoding(AsymmetricBlockCipher cipher)
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OAEPEncoding(AsymmetricBlockCipher cipher,
Digest hash)
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OAEPEncoding(AsymmetricBlockCipher cipher,
Digest hash,
byte[] encodingParams)
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OAEPEncoding(AsymmetricBlockCipher cipher,
Digest hash,
Digest mgf1Hash,
byte[] encodingParams)
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| Method Summary | |
|---|---|
byte[] |
decodeBlock(byte[] in,
int inOff,
int inLen)
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byte[] |
encodeBlock(byte[] in,
int inOff,
int inLen)
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int |
getInputBlockSize()
returns the largest size an input block can be. |
int |
getOutputBlockSize()
returns the maximum size of the block produced by this cipher. |
AsymmetricBlockCipher |
getUnderlyingCipher()
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void |
init(boolean forEncryption,
CipherParameters param)
initialise the cipher. |
byte[] |
processBlock(byte[] in,
int inOff,
int inLen)
process the block of len bytes stored in in from offset inOff. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public OAEPEncoding(AsymmetricBlockCipher cipher)
public OAEPEncoding(AsymmetricBlockCipher cipher,
Digest hash)
public OAEPEncoding(AsymmetricBlockCipher cipher,
Digest hash,
byte[] encodingParams)
public OAEPEncoding(AsymmetricBlockCipher cipher,
Digest hash,
Digest mgf1Hash,
byte[] encodingParams)
| Method Detail |
|---|
public AsymmetricBlockCipher getUnderlyingCipher()
public void init(boolean forEncryption,
CipherParameters param)
AsymmetricBlockCipher
init in interface AsymmetricBlockCipherforEncryption - if true the cipher is initialised for
encryption, if false for decryption.param - the key and other data required by the cipher.public int getInputBlockSize()
AsymmetricBlockCipher
getInputBlockSize in interface AsymmetricBlockCipherpublic int getOutputBlockSize()
AsymmetricBlockCipher
getOutputBlockSize in interface AsymmetricBlockCipher
public byte[] processBlock(byte[] in,
int inOff,
int inLen)
throws InvalidCipherTextException
AsymmetricBlockCipher
processBlock in interface AsymmetricBlockCipherin - the input datainOff - offset into the in array where the data startsinLen - the length of the block to be processed.
InvalidCipherTextException - data decrypts improperly.
public byte[] encodeBlock(byte[] in,
int inOff,
int inLen)
throws InvalidCipherTextException
InvalidCipherTextException
public byte[] decodeBlock(byte[] in,
int inOff,
int inLen)
throws InvalidCipherTextException
InvalidCipherTextException - if the decrypted block turns out to
be badly formatted.
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