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.
- See Also:
PKCS1SignatureSigner- Category:
- 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:905-507-4220
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.
- Since:
- BlackBerry API 3.6.0
|
Method Summary |
|
String |
getAlgorithm()
Returns the name of the signing algorithm used ("RSA_PKCS1_(V15 or V20)/" + digest
algorithm name). |
|
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. |
|
boolean |
verify()
Returns true if the signature is valid, false otherwise. |
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.
- Throws:
InvalidSignatureEncodingException
CryptoTokenException
CryptoUnsupportedOperationException- Category:
- 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:905-507-4220
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.
- Since:
- BlackBerry API 3.6.0
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.
- Throws:
InvalidSignatureEncodingException
CryptoTokenException
CryptoUnsupportedOperationException- Category:
- 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:905-507-4220
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.
- Since:
- BlackBerry API 3.6.0
getAlgorithm
public String getAlgorithm()
- Returns the name of the signing algorithm used ("RSA_PKCS1_(V15 or V20)/" + digest
algorithm name).
- Specified by:
getAlgorithm in interface SignatureVerifier
- Returns:
- A String representing the name of the algorithm.
- Category:
- 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:905-507-4220
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.
- Since:
- BlackBerry API 3.6.0
update
public void update(int data)
- Description copied from interface:
SignatureVerifier
- Adds additional message data to the signature.
- Specified by:
update in interface SignatureVerifier
- Parameters:
data - The byte to be hashed.- Category:
- 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:905-507-4220
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.
- Since:
- BlackBerry API 3.6.0
update
public void update(byte[] data)
- Description copied from interface:
SignatureVerifier
- Adds additional message data to the signature.
- Specified by:
update in interface SignatureVerifier
- Parameters:
data - A byte array containing the message data to hash.- Category:
- 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:905-507-4220
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.
- Since:
- BlackBerry API 3.6.0
update
public void update(byte[] data,
int offset,
int length)
- Description copied from interface:
SignatureVerifier
- Adds additional message data to the signature.
- Specified by:
update in interface SignatureVerifier
- Parameters:
data - The message data to hash.offset - The offset, or initial position to start reading in the data.length - The amount of data to read.- Category:
- 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:905-507-4220
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.
- Since:
- BlackBerry API 3.6.0
verify
public boolean verify()
throws CryptoTokenException,
CryptoUnsupportedOperationException
- Description copied from interface:
SignatureVerifier
- Returns true if the signature is valid, false otherwise.
- Specified by:
verify in interface SignatureVerifier
- Returns:
- A boolean that returns true if the signature is valid, false otherwise.
- Throws:
CryptoTokenException - Thrown when a problem occurs with a crypto
token or the crypto token is invalid.
CryptoUnsupportedOperationException - Thrown when a call is made to
an unsupported operation.- Category:
- 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:905-507-4220
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.
- Since:
- BlackBerry API 3.6.0
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