Package org.mozilla.jss.netscape.security.provider

Class RSAPublicKey

java.lang.Object

org.mozilla.jss.netscape.security.x509.X509Key

org.mozilla.jss.netscape.security.provider.RSAPublicKey

All Implemented Interfaces:

java.io.Serializable, java.security.Key, java.security.PublicKey

public final class RSAPublicKey
extends X509Key
implements java.io.Serializable

An X.509 public key for the RSA Algorithm.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.mozilla.jss.netscape.security.x509.X509Key

algid, encodedKey, key

Constructor Summary

Constructors

Constructor	Description
RSAPublicKey()
RSAPublicKey(byte[] encoded)	Make a RSA public key from its DER encoding (X.509).
RSAPublicKey(BigInt modulus, BigInt publicExponent)	Make a RSA public key out of a public exponent and modulus

Method Summary

Modifier and Type	Method	Description
boolean	bigIntEquals(BigInt x, BigInt y)
boolean	equals(java.lang.Object obj)
int	getKeySize()	Get key size as number of bits in modulus (Always rounded up to a multiple of 8)
BigInt	getModulus()	Get the raw modulus
BigInt	getPublicExponent()	Get the raw public exponent
int	hashCode()	Calculates a hash code value for the object.
protected void	parseKeyBits()	Parse the key bits.
java.lang.String	toString()

Methods inherited from class org.mozilla.jss.netscape.security.x509.X509Key

decode, decode, encode, encode, getAlgorithm, getAlgorithmId, getEncoded, getFormat, getKey, parse, parsePublicKey

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

RSAPublicKey

public RSAPublicKey()

RSAPublicKey

public RSAPublicKey(BigInt modulus,
                    BigInt publicExponent)
             throws java.security.InvalidKeyException

Make a RSA public key out of a public exponent and modulus

Throws:

java.security.InvalidKeyException

RSAPublicKey

public RSAPublicKey(byte[] encoded)
             throws java.security.InvalidKeyException

Make a RSA public key from its DER encoding (X.509).

Throws:

java.security.InvalidKeyException

Method Detail

getKeySize

public int getKeySize()

Get key size as number of bits in modulus (Always rounded up to a multiple of 8)

getPublicExponent

public BigInt getPublicExponent()

Get the raw public exponent

getModulus

public BigInt getModulus()

Get the raw modulus

toString

public java.lang.String toString()

Overrides:

toString in class X509Key

parseKeyBits

protected void parseKeyBits()
                     throws java.security.InvalidKeyException

Description copied from class: X509Key

Parse the key bits. This may be redefined by subclasses to take advantage of structure within the key. For example, RSA public keys encapsulate two unsigned integers (modulus and exponent) as DER values within the key bits; Diffie-Hellman and DSS/DSA keys encapsulate a single unsigned integer.

This function is called when creating X.509 SubjectPublicKeyInfo values using the X509Key member functions, such as parse and decode.

Overrides:

parseKeyBits in class X509Key

Throws:

java.security.InvalidKeyException - on invalid key encodings.

hashCode

public int hashCode()

Description copied from class: X509Key

Calculates a hash code value for the object. Objects which are equal will also have the same hashcode.

Overrides:

hashCode in class X509Key

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class X509Key

bigIntEquals

public boolean bigIntEquals(BigInt x,
                            BigInt y)