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Class iaik.asn1.structures.AlgorithmID

java.lang.Object
   |
   +----iaik.asn1.structures.AlgorithmID

public class AlgorithmID

extends Object

implements ASN1Type, Cloneable

des_EDE3_CBC

dhKeyAgreement

dsa

dsaWithSHA

md2

md2WithRSAEncryption

md4

md4WithRSAEncryption

md5

md5WithRSAEncryption

pbeWithMD5AndDES_CBC

pbeWithSHAAnd128BitRC2_CBC

pbeWithSHAAnd128BitRC4

pbeWithSHAAnd2_KeyTripleDES_CBC

pbeWithSHAAnd3_KeyTripleDES_CBC

pbeWithSHAAnd40BitRC2_CBC

pbeWithSHAAnd40BitRC4

rc2_CBC

rc4

rsa

rsaEncryption

sha

sha1

sha1WithRSAEncryption

AlgorithmID()

AlgorithmID(ASN1Object)

Creates a new AlgorithmID from an ASN1Object.

AlgorithmID(ObjectID)

Creates a new AlgorithmID from an ObjectID.

AlgorithmID(ObjectID, ASN1Object)

Creates a new AlgorithmID from an ObjectID and a parameter.

AlgorithmID(String, String)

Creates a new AlgorithmID from an object identifier and a name.

clone()

Returns a clone of this AlgorithmID.

decode(ASN1Object)

Decodes an AlgorithmID as ASN1Object.

equals(Object)

Compares two AlgorithmIDs.

getAlgorithm()

Returns the ObjectID of the algorithm.

getInstance()

Tries to find an implementation for this AlgorithmIdentifier.

getName()

Returns the name registered for this AlgorithmID or the object identifier if there is no name registered.

getParameter()

Returns the parameter of the algorithm.

setParameter(ASN1Object)

Sets the parameter of the algorithm.

toASN1Object()

Returns the AlgorithmID as an ASN1Object.

toString()

Returns a string that represents this AlgorithmIdentifier.

 public static AlgorithmID dhKeyAgreement

 public static AlgorithmID rsaEncryption

 public static AlgorithmID md2WithRSAEncryption

 public static AlgorithmID md4WithRSAEncryption

 public static AlgorithmID md5WithRSAEncryption

 public static AlgorithmID sha1WithRSAEncryption

 public static AlgorithmID dsa

 public static AlgorithmID dsaWithSHA

 public static AlgorithmID pbeWithMD5AndDES_CBC

 public static AlgorithmID pbeWithSHAAnd128BitRC4

 public static AlgorithmID pbeWithSHAAnd40BitRC4

 public static AlgorithmID pbeWithSHAAnd3_KeyTripleDES_CBC

 public static AlgorithmID pbeWithSHAAnd2_KeyTripleDES_CBC

 public static AlgorithmID pbeWithSHAAnd128BitRC2_CBC

 public static AlgorithmID pbeWithSHAAnd40BitRC2_CBC

 public static AlgorithmID rsa

 public static AlgorithmID rc2_CBC

 public static AlgorithmID rc4

 public static AlgorithmID des_EDE3_CBC

 public static AlgorithmID md2

 public static AlgorithmID md4

 public static AlgorithmID md5

 public static AlgorithmID sha

 public static AlgorithmID sha1

 public AlgorithmID()

 public AlgorithmID(String objectID,
                    String name)

Creates a new AlgorithmID from an object identifier and a name. The AlgorithmID parameter is set to NULL.

Parameters:

objectID - the object identifier of the algorithm as a string; e.g. "2.5.8.1.1"

name - the name for this object identifier; e.g "rsa"

 public AlgorithmID(ObjectID algorithm)

Creates a new AlgorithmID from an ObjectID. The parameter is set to NULL.

Parameters:

algorithm - the ObjectID of the algorithm

 public AlgorithmID(ObjectID algorithm,
                    ASN1Object parameter)

Creates a new AlgorithmID from an ObjectID and a parameter.

Parameters:

algorithm - the ObjectID of the algorithm

parameter - the parameter of the algorithm

 public AlgorithmID(ASN1Object algorithmID) throws CodingException

Creates a new AlgorithmID from an ASN1Object.

Parameters:

algorithmID - the AlgorithmID as ASN1Object

Throws: CodingException

if the ASN1Object is no AlgorithmID

 public void decode(ASN1Object algorithmID) throws CodingException

Decodes an AlgorithmID as ASN1Object.

Parameters:

algorithmID - the AlgorithmID as ASN1Object

Throws: CodingException

if the ASN1Object is no AlgorithmID

 public ASN1Object toASN1Object()

Returns the AlgorithmID as an ASN1Object.

Returns:

the AlgorithmID as ASN1Object

 public Object getInstance() throws NoSuchAlgorithmException

Tries to find an implementation for this AlgorithmIdentifier. This method calls the getInstance() methods in the following order:

• MessageDigest
• Signature
• Cipher

Returns:

an instance of the object which implements this algorithm

Throws: NoSuchAlgorithmException

if there is no implementation

 public Object clone()

Returns a clone of this AlgorithmID. Shall be used when setting an algorithm parameter to an already defined AlgorithmID (e.g. AlgorithmID.rsa).

Returns:

a clone of this AlgorithmID

Overrides:

clone in class Object

 public ObjectID getAlgorithm()

Returns the ObjectID of the algorithm.

Returns:

the ObjectID of the algorithm

 public ASN1Object getParameter()

Returns the parameter of the algorithm.

Returns:

the parameter of the algorithm

 public void setParameter(ASN1Object parameter)

Sets the parameter of the algorithm.

Parameters:

parameter - the parameter of the algorithm

 public String getName()

Returns the name registered for this AlgorithmID or the object identifier if there is no name registered.

Returns:

the name of this AlgorithmID

 public boolean equals(Object obj)

Compares two AlgorithmIDs.

Parameters:

obj - the other AlgorithmID

Returns:

true, if the two AlgorithmIDs are equal

Overrides:

equals in class Object

 public String toString()

Returns a string that represents this AlgorithmIdentifier.

Returns:

the string representation

Overrides:

toString in class Object

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