net.rim.device.api.crypto.KeyPair
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java.lang.Object
public abstract class KeyPair
The KeyPair class generically defines all key pairs (such as ECKeyPair, DSAKeyPair, etc.)
that are used in the Crypto API.
| Constructor Summary | ||
|---|---|---|
|
protected |
KeyPair()
Creates a new KeyPair object. |
|
protected |
KeyPair(KeyPair keypair)
Creates a new KeyPair object. |
|
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KeyPair(PublicKey publicKey,
PrivateKey privateKey)
Creates a new KeyPair object. |
| Method Summary | ||
|---|---|---|
|
boolean |
equals(Object obj)
Indicates whether some other object is "equal to" this one. |
|
CryptoSystem |
getCryptoSystem()
Returns the crypto system associated with the keys. |
|
PrivateKey |
getPrivateKey()
Returns the private key associated with this key pair. |
|
PublicKey |
getPublicKey()
Returns the public key associated with this key pair. |
|
int |
hashCode()
Returns a hash code value for the object. |
|
boolean |
isVerified()
Returns a boolean that determines if this key pair is verified. |
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protected void |
setKeyPair(PublicKey publicKey,
PrivateKey privateKey)
Sets the key pair. |
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protected void |
verified()
Sets the verified field to true, indicating that this key pair has been verified. |
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abstract void |
verify()
Performs certain integrity checks on the key pair parameters. |
| Methods inherited from class java.lang.Object |
|---|
getClass, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
protected KeyPair()
KeyPair object.
This constructor does nothing.
protected KeyPair(KeyPair keypair)
KeyPair object.
public KeyPair(PublicKey publicKey,
PrivateKey privateKey)
throws InvalidKeyPairException
KeyPair object.
publicKey - The publicKey object that represents the
public key in the key pair.privateKey - The privatekey object that represents the
private key in the key pair.
InvalidKeyPairException| Method Detail |
|---|
protected final void setKeyPair(PublicKey publicKey,
PrivateKey privateKey)
This method should only be called from the constructor of subclasses, since it changes the hashcode of the object.
publicKey - The public key.privateKey - The private key.public PublicKey getPublicKey()
PublicKey associated with the key pair.public PrivateKey getPrivateKey()
PrivateKey associated with the key pair.public CryptoSystem getCryptoSystem()
CryptoSystem used to create the key pair.
public abstract void verify()
throws InvalidKeyException,
InvalidCryptoSystemException,
InvalidKeyPairException,
CryptoTokenException,
CryptoUnsupportedOperationException
These checks are useful to prevent certain types of attacks that involve modifying the parameters and then using a signed message to calculate the private key parameters.
InvalidKeyException - Thrown when one or both of the keys are of an
invalid format.
InvalidCryptoSystemException - Thrown if the specified crypto
system is invalid.
InvalidKeyPairException - Thrown when the keys are not related.
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.protected void verified()
public boolean isVerified()
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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