net.rim.device.api.crypto.KeyPair
net.rim.device.api.crypto.ECKeyPair
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java.lang.Object
public final class ECKeyPair
Holds an Elliptic Curve public and private key.
Elliptic Curve cryptography is defined in various standards including P1363 and ANSI X9.62.
ECPublicKey,
ECPrivateKey| Constructor Summary | ||
|---|---|---|
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ECKeyPair(ECCryptoSystem cryptoSystem)
Creates a new ECKeyPair object with the given crypto system. |
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ECKeyPair(ECPublicKey publicKey,
ECPrivateKey privateKey)
Creates a new ECKeyPair object using the specified public and private keys. |
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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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ECCryptoSystem |
getECCryptoSystem()
Returns the EC crypto system associated with the keys. |
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ECPrivateKey |
getECPrivateKey()
Returns the EC private key associated with this key pair. |
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ECPublicKey |
getECPublicKey()
Returns the EC public key associated with this key pair. |
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int |
hashCode()
Returns a hash code value for the object. |
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void |
verify()
Performs certain integrity checks on the key pair parameters. |
| Methods inherited from class net.rim.device.api.crypto.KeyPair |
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getCryptoSystem, getPrivateKey, getPublicKey, isVerified, setKeyPair, verified |
| Methods inherited from class java.lang.Object |
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getClass, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public ECKeyPair(ECCryptoSystem cryptoSystem)
throws CryptoTokenException,
CryptoUnsupportedOperationException
ECKeyPair object with the given crypto system.
cryptoSystem - The crypto system associated with the key pair.
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 ECKeyPair(ECPublicKey publicKey,
ECPrivateKey privateKey)
throws InvalidKeyPairException
ECKeyPair object using the specified public and private keys.
publicKey - The EC public key to use.privateKey - The EC private key to use.
InvalidKeyPairException - Thrown if one or both of the specified
keys are invalid.| Method Detail |
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public ECPublicKey getECPublicKey()
public ECPrivateKey getECPrivateKey()
public ECCryptoSystem getECCryptoSystem()
public void verify()
throws InvalidKeyException,
InvalidCryptoSystemException,
InvalidKeyPairException,
CryptoTokenException,
CryptoUnsupportedOperationException
KeyPairThese 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.
verify in class KeyPairInvalidKeyException - 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.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 KeyPairObject.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 KeyPairobj - 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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