|
|||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||
java.lang.Object | +--net.rim.device.api.crypto.DSASignatureSigner
Signs a message using the DSA signature scheme.
The Digital Signature Algorithm ( DSA ) is defined in FIPS 186.
For information on cryptographic algorithms, see Crypto Algorithms.
Certicom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
DSASignatureVerifier| Constructor Summary | ||
|
DSASignatureSigner(DSAPrivateKey key)
Constructs a DSASignatureSigner object which uses SHA-1 to compute the signature. |
|
|
DSASignatureSigner(DSAPrivateKey key,
Digest digest)
Constructs a DSASignatureSigner object which uses digest to compute the signature. |
|
| Method Summary | ||
|
String |
getAlgorithm()
Returns the name of this signing algorithm ( "DSA/" + digest.getAlgorithm() ). |
|
String |
getDigestAlgorithm()
Returns the name of the digest algorithm used, eg "SHA1", etc. |
|
int |
getRLength()
Returns the length of r. |
|
int |
getSLength()
Returns the length of s. |
|
void |
reset()
Reinitializes the signer, preparing it to generate another signature. |
|
void |
sign(byte[] r,
int rOffset,
byte[] s,
int sOffset)
Performs the signing operation for the DSA algorithm. |
|
void |
update(byte[] data)
Adds additional message data to the signature. |
|
void |
update(byte[] data,
int offset,
int length)
Adds additional message data to the signature. |
|
void |
update(int data)
Adds additional message data to the signature. |
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public DSASignatureSigner(DSAPrivateKey key) throws CryptoTokenException, CryptoUnsupportedOperationException
DSASignatureSigner object which uses SHA-1 to compute the signature.
key - The private key to use.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.Certicom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
public DSASignatureSigner(DSAPrivateKey key, Digest digest) throws CryptoTokenException, CryptoUnsupportedOperationException
DSASignatureSigner object which uses digest to compute the signature.
NOTE: If the digest has any state information in it when it is given to the signature signer, this information will be incorparated into the signature. If you don't want this information included, call the reset routine for the signature signer to delete it. A newly created digest, which no update calls have been made too, has no state information in it by default.
key - The private key to use.digest - An instance of the digest algorithm to use.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.Certicom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
| Method Detail |
public String getAlgorithm()
"DSA/" + digest.getAlgorithm() ).
SignatureSignerCerticom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
public String getDigestAlgorithm()
SignatureSignerCerticom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
public int getRLength()
Certicom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
public int getSLength()
Certicom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
public void reset()
SignatureSignerCerticom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
public void sign(byte[] r,
int rOffset,
byte[] s,
int sOffset)
throws CryptoTokenException,
CryptoUnsupportedOperationException
r - A byte array containing the r component of the signature.rOffset - The starting offset in the r byte array.s - A byte array containing the s component of the signature.sOffset - The starting offset in the s byte array.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.Certicom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
public void update(byte[] data)
SignatureSigner
SignatureSignerdata - The message data to hash.Certicom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
public void update(byte[] data,
int offset,
int length)
SignatureSigner
SignatureSignerdata - The message data to hash.offset - The offset, or the initial position to start reading in the data.length - How much data to read.Certicom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
public void update(int data)
SignatureSigner
SignatureSignerdata - The byte to be hashed.Certicom Contact Information
Phone:613-254-9258
Email: sales@certicom.com
Website: http://www.certicom.com/rim
Signed: This element is only accessible by signed applications. If you intend to use this element, please visit http://www.blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing.
|
|||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
| SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | ||||||||
Copyright 1999-2008 Research In Motion Limited. 295 Phillip Street, Waterloo, Ontario, Canada, N2L 3W8. All Rights Reserved.
Copyright 1993-2003 Sun Microsystems, Inc. 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
Copyright 2002-2003 Nokia Corporation All Rights Reserved.
Java is a trademark or registered trademark of Sun Microsystems, Inc. in the US and other countries.