iaik.me.security
Class PublicKey

java.lang.Object
  |
  +--iaik.me.security.CryptoBag
        |
        +--iaik.me.security.PublicKey

public class PublicKey

extends CryptoBag

Fields inherited from class iaik.me.security.CryptoBag

TYPE_DH_PARAMS, TYPE_DH_PRIVATE, TYPE_DH_PUBLIC, TYPE_DSA_PARAMS, TYPE_DSA_PRIVATE, TYPE_DSA_PUBLIC, TYPE_IV, TYPE_KEYPAIR, TYPE_RSA_PRIVATE, TYPE_RSA_PUBLIC, TYPE_SECRET_KEY, V_DH_G, V_DH_P, V_DH_PARAMS, V_DH_X, V_DH_Y, V_DSA_G, V_DSA_P, V_DSA_PARAMS, V_DSA_Q, V_DSA_X, V_DSA_Y, V_IV, V_KEY, V_KEY_PRIVATE, V_KEY_PUBLIC, V_RSA_CRT_C, V_RSA_CRT_EP, V_RSA_CRT_EQ, V_RSA_CRT_P, V_RSA_CRT_Q, V_RSA_D, V_RSA_E, V_RSA_N

Constructor Summary

PublicKey(ASN1 asn1)
Creates a public key from an ASN1 object.

Method Summary

ASN1	getASN1() Fetches the ASN1 representation of the PublicKey.
static PublicKey	makeDHPublicKey(BigInteger y, CryptoBag params) Generates a new DifffieHellman public key.
static PublicKey	makeDSAPublicKey(BigInteger y, CryptoBag params) Generates a new DSA public key.
static PublicKey	makeRSAPublicKey(BigInteger modulus, BigInteger publicExponent) Makes a RSA public key from modulus, exponent representation.

Methods inherited from class iaik.me.security.CryptoBag

equals, getBigInteger, getByteArray, getCryptoBag, getEncoded, getKeyLength, getType, hashCode, makeDHParameters, makeDSAParameters, makeIV, makeKeyPair, makeSecretKey, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

PublicKey

public PublicKey(ASN1 asn1)
          throws IOException

Creates a public key from an ASN1 object.

Parameters:

a - asn1 object

Throws:

IOException -

Method Detail

getASN1

public ASN1 getASN1()

Fetches the ASN1 representation of the PublicKey.

Overrides:

getASN1 in class CryptoBag

Returns:

the object in ASN1 repr.

makeRSAPublicKey

public static PublicKey makeRSAPublicKey(BigInteger modulus,
                                         BigInteger publicExponent)

Makes a RSA public key from modulus, exponent representation.

Parameters:

modulus -

publicExponent -

Returns:

makeDSAPublicKey

public static PublicKey makeDSAPublicKey(BigInteger y,
                                         CryptoBag params)

Generates a new DSA public key.

Parameters:

biginteger - keygeneration

DSA - parameters for generation

Returns:

the new public key

makeDHPublicKey

public static PublicKey makeDHPublicKey(BigInteger y,
                                        CryptoBag params)

Generates a new DifffieHellman public key.

Parameters:

biginteger - for keygeneration

DH - params

Returns:

new DH public key