SHOW Signed

net.rim.device.api.crypto
Class PKCS1SignatureVerifier

java.lang.Object
  |
  +--net.rim.device.api.crypto.PKCS1SignatureVerifier
All Implemented Interfaces:
SignatureVerifier

public final class PKCS1SignatureVerifier
extends Object
implements SignatureVerifier

The PKCS1SignatureVerifier class can verify an RSA PKCS#1 signature.

We implemented the PKCS1 verification as per the PKCS #1 version 2.1 document.

For a code sample using the PKCS1 signature verifier, click here.

Category:
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim

Since:
JDE 3.6.0
See Also:
PKCS1SignatureSigner

Constructor Summary
 Category: Signed Category: Certicom PKCS1SignatureVerifier(RSAPublicKey key, byte[] signature, int signatureOffset)
          Constructs an RSA PKCS1SignatureVerifier object which uses the SHA-1 digest.
 Category: Signed Category: Certicom PKCS1SignatureVerifier(RSAPublicKey key, Digest digest, byte[] signature, int signatureOffset)
          Constructs an RSA PKCS1SignatureVerifier object which uses the given digest.
 
Method Summary
 Category: Signed Category: Certicom  String getAlgorithm()
          Returns the name of the signing algorithm used ("RSA_PKCS1_(V15 or V20)/" + digest algorithm name).
 Category: Signed Category: Certicom  void update(byte[] data)
          Adds additional message data to the signature.
 Category: Signed Category: Certicom  void update(byte[] data, int offset, int length)
          Adds additional message data to the signature.
 Category: Signed Category: Certicom  void update(int data)
          Adds additional message data to the signature.
 Category: Signed Category: Certicom  boolean verify()
          Returns true if the signature is valid, false otherwise.
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

PKCS1SignatureVerifier

public PKCS1SignatureVerifier(RSAPublicKey key,
                              byte[] signature,
                              int signatureOffset)
                       throws InvalidSignatureEncodingException,
                              CryptoTokenException,
                              CryptoUnsupportedOperationException
Constructs an RSA PKCS1SignatureVerifier object which uses the SHA-1 digest.

Parameters:
key - The public key used to verify the signature.
signature - The signature to be verified.
signatureOffset - The offset, or the start position, of the signature data within the array.
Since:
JDE 3.6.0
Category:
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim


PKCS1SignatureVerifier

public PKCS1SignatureVerifier(RSAPublicKey key,
                              Digest digest,
                              byte[] signature,
                              int signatureOffset)
                       throws InvalidSignatureEncodingException,
                              CryptoTokenException,
                              CryptoUnsupportedOperationException
Constructs an RSA PKCS1SignatureVerifier object which uses the given digest.

Parameters:
key - The public key used to verify the signature.
digest - The digest used to process the message.
signature - The signature to be verified.
signatureOffset - The offset, or start position, of the signature data within the array.
Since:
JDE 3.6.0
Category:
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim

Method Detail

getAlgorithm

public String getAlgorithm()
Returns the name of the signing algorithm used ("RSA_PKCS1_(V15 or V20)/" + digest algorithm name).

Returns:
A String representing the name of the algorithm.
Since:
JDE 3.6.0
Category:
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim


update

public void update(int data)
Description copied from interface: SignatureVerifier
Adds additional message data to the signature.

Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim


update

public void update(byte[] data)
Description copied from interface: SignatureVerifier
Adds additional message data to the signature.

Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim


update

public void update(byte[] data,
                   int offset,
                   int length)
Description copied from interface: SignatureVerifier
Adds additional message data to the signature.

Since:
JDE 4.0.2
Category:
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim


verify

public boolean verify()
               throws CryptoTokenException,
                      CryptoUnsupportedOperationException
Description copied from interface: SignatureVerifier
Returns true if the signature is valid, false otherwise.

Since:
JDE 3.6.0
Category:
Signed: This element is only accessible by signed clients. If you intend to use this element, please contact RIM to establish the necessary agreements that will allow you to have your COD files signed. Signing is only required for use on the device, development under the JDE can occur without signing the CODs.
Certicom: This element is part of the Certicom Cryptography APIs. The Certicom Cryptography APIs provide the tools you need, including ECC based algorithms, to integrate high performance data security into your applications, such as public key data encryption and decryption, digital signatures, and data authentication. Since the Certicom Cryptography API is already in the JDE, its use will remove the need for you to engage in time and resource intensive security integration so that you have lower development costs and a faster time to market. Use of the Certicom Cryptography API requires a license from Certicom. Please contact Certicom directly for more information on licensing fees and conditions.

Certicom Contact Information

Phone:613-254-9258

Email: sales@certicom.com

Website: http://www.certicom.com/rim



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