net.rim.device.api.crypto.KEAPublicKey
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java.lang.Object
public final class KEAPublicKey
Represents a public key in a Key Exchange Algorithm (KEA) system.
A description of the KEA algorithm can be found at KEA.
KEACryptoSystem,
KEAPrivateKey| Constructor Summary | ||
|---|---|---|
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KEAPublicKey(KEACryptoSystem cryptoSystem,
byte[] data)
Constructs a KEAPublicKey object under the given crypto system using the
given data as the public key's mathematical representation. |
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KEAPublicKey(KEACryptoSystem cryptoSystem,
CryptoTokenPublicKeyData cryptoTokenData)
Constructs a KEAPublicKey object under the given crypto
system associated with the specified crypto token data. |
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| Method Summary | ||
|---|---|---|
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boolean |
equals(Object obj)
Indicates whether some other object is "equal to" this one. |
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String |
getAlgorithm()
Returns a string containing the name of the algorithm associated with this key ("KEA"). |
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CryptoSystem |
getCryptoSystem()
Returns the crypto system associated with the key. |
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CryptoTokenPublicKeyData |
getCryptoTokenData()
Returns the crypto token data associated with the key. |
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KEACryptoSystem |
getKEACryptoSystem()
Returns the KEA crypto system associated with the key. |
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KEACryptoToken |
getKEACryptoToken()
Returns the KEA crypto token associated with the key. |
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byte[] |
getPublicKeyData()
Returns a copy of the public key data. |
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int |
hashCode()
Returns a hash code value for the object. |
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void |
verify()
Checks the integrity of the associated CryptoSystem, and then
performs integrity checks on the public key parameters. |
| Methods inherited from class java.lang.Object |
|---|
getClass, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public KEAPublicKey(KEACryptoSystem cryptoSystem,
byte[] data)
throws InvalidKeyException,
CryptoTokenException,
CryptoUnsupportedOperationException
KEAPublicKey object under the given crypto system using the
given data as the public key's mathematical representation.
cryptoSystem - A KEACryptoSystem that contains parameters for KEA computations.data - The keying material that is to be used for the public key operations.
InvalidKeyException - Thrown if the key data is invalid.
CryptoTokenException - Thrown if an error occurs with the crypto
token of the crypto token is invalid.
CryptoUnsupportedOperationException - Thrown if a call is made to
an unsupported operation.
public KEAPublicKey(KEACryptoSystem cryptoSystem,
CryptoTokenPublicKeyData cryptoTokenData)
KEAPublicKey object under the given crypto
system associated with the specified crypto token data.
cryptoSystem - A KEACryptoSystem that contains parameters for the KEA computations.cryptoTokenData - The public key data associated with the crypto
token.| Method Detail |
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public String getAlgorithm()
This method will always return the String "KEA".
getAlgorithm in interface Keypublic KEACryptoSystem getKEACryptoSystem()
getKEACryptoSystem in interface KEAKeyKEACryptoSystem object associated with the key.public CryptoSystem getCryptoSystem()
getCryptoSystem in interface PublicKeyCryptoSystem object associated with the key.
public void verify()
throws InvalidKeyException,
InvalidCryptoSystemException,
CryptoTokenException,
CryptoUnsupportedOperationException
CryptoSystem, and then
performs integrity checks on the public key parameters. The CryptoSystem
is checked via its verify() method, and then the following
are verified:
verify in interface PublicKeyInvalidKeyException - Thrown if the public key parameters are invalid.
InvalidCryptoSystemException - Thrown if the crypto system
parameters are invalid.
CryptoTokenException - Thrown when an error occurs with the crypto
token.
CryptoUnsupportedOperationException - Thrown when a call is made to
an unsupported operation.
public byte[] getPublicKeyData()
throws CryptoTokenException,
CryptoUnsupportedOperationException
CryptoTokenException - Thrown if an error occurs with the crypto
token or the crypto token is invalid.
CryptoUnsupportedOperationException - Thrown if a call is made to
an unsupported operation.public KEACryptoToken getKEACryptoToken()
KEACryptoToken object associated with the key.public CryptoTokenPublicKeyData getCryptoTokenData()
CryptoTokenPublicKeyData object associated with
the key.public int hashCode()
Objectjava.util.Hashtable.
The general contract of hashCode is:
hashCode method on each of
the two objects must produce the same integer result.
Object.equals(java.lang.Object)
method, then calling the hashCode method on each of the
two objects must produce distinct integer results. However, the
programmer should be aware that producing distinct integer results
for unequal objects may improve the performance of hashtables.
As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)
hashCode in class ObjectObject.equals(java.lang.Object),
Hashtablepublic boolean equals(Object obj)
Object
The equals method implements an equivalence relation:
x,
x.equals(x) should return true.
x and
y, x.equals(y) should return
true if and only if y.equals(x) returns
true.
x,
y, and z, if x.equals(y)
returns true and y.equals(z) returns
true, then x.equals(z) should return
true.
x
and y, multiple invocations of x.equals(y)
consistently return true or consistently return
false, provided no information used in
equals comparisons on the object is modified.
x,
x.equals(null) should return false.
The equals method for class Object implements
the most discriminating possible equivalence relation on objects;
that is, for any reference values x and y,
this method returns true if and only if x and
y refer to the same object (x==y has the
value true).
equals in class Objectobj - the reference object with which to compare.
true if this object is the same as the obj
argument; false otherwise.Boolean.hashCode(),
Hashtable
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