|
Bouncy Castle Cryptography Library 1.64 | |||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectorg.bouncycastle.crypto.kems.ECIESKeyEncapsulation
The ECIES Key Encapsulation Mechanism (ECIES-KEM) from ISO 18033-2.
Constructor Summary | |
ECIESKeyEncapsulation(DerivationFunction kdf,
java.security.SecureRandom rnd)
Set up the ECIES-KEM. |
|
ECIESKeyEncapsulation(DerivationFunction kdf,
java.security.SecureRandom rnd,
boolean cofactorMode,
boolean oldCofactorMode,
boolean singleHashMode)
Set up the ECIES-KEM. |
Method Summary | |
protected ECMultiplier |
createBasePointMultiplier()
|
CipherParameters |
decrypt(byte[] in,
int keyLen)
Decrypt an encapsulated session key. |
CipherParameters |
decrypt(byte[] in,
int inOff,
int inLen,
int keyLen)
Decrypt an encapsulated session key. |
protected KeyParameter |
deriveKey(int keyLen,
byte[] C,
byte[] PEH)
|
CipherParameters |
encrypt(byte[] out,
int keyLen)
Generate and encapsulate a random session key. |
CipherParameters |
encrypt(byte[] out,
int outOff,
int keyLen)
Generate and encapsulate a random session key. |
void |
init(CipherParameters key)
Initialise the ECIES-KEM. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public ECIESKeyEncapsulation(DerivationFunction kdf, java.security.SecureRandom rnd)
kdf
- the key derivation function to be used.rnd
- the random source for the session key.public ECIESKeyEncapsulation(DerivationFunction kdf, java.security.SecureRandom rnd, boolean cofactorMode, boolean oldCofactorMode, boolean singleHashMode)
kdf
- the key derivation function to be used.rnd
- the random source for the session key.cofactorMode
- if true use the new cofactor ECDH.oldCofactorMode
- if true use the old cofactor ECDH.singleHashMode
- if true use single hash mode.Method Detail |
public void init(CipherParameters key) throws java.lang.IllegalArgumentException
init
in interface KeyEncapsulation
key
- the recipient's public (for encryption) or private (for decryption) key.
java.lang.IllegalArgumentException
public CipherParameters encrypt(byte[] out, int outOff, int keyLen) throws java.lang.IllegalArgumentException
encrypt
in interface KeyEncapsulation
out
- the output buffer for the encapsulated key.outOff
- the offset for the output buffer.keyLen
- the length of the session key.
java.lang.IllegalArgumentException
public CipherParameters encrypt(byte[] out, int keyLen)
out
- the output buffer for the encapsulated key.keyLen
- the length of the session key.
public CipherParameters decrypt(byte[] in, int inOff, int inLen, int keyLen) throws java.lang.IllegalArgumentException
decrypt
in interface KeyEncapsulation
in
- the input buffer for the encapsulated key.inOff
- the offset for the input buffer.inLen
- the length of the encapsulated key.keyLen
- the length of the session key.
java.lang.IllegalArgumentException
public CipherParameters decrypt(byte[] in, int keyLen)
in
- the input buffer for the encapsulated key.keyLen
- the length of the session key.
protected ECMultiplier createBasePointMultiplier()
protected KeyParameter deriveKey(int keyLen, byte[] C, byte[] PEH)
|
Bouncy Castle Cryptography Library 1.64 | |||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |