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java.lang.Objectnet.rim.device.api.crypto.encoder.SignatureDecoder
net.rim.device.api.crypto.encoder.CMS_SignatureDecoder
public class CMS_SignatureDecoder
Implements the signature decoder for CMS.
| Constructor Summary | ||
|---|---|---|
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CMS_SignatureDecoder()
Creates a new CMS_SignatureDecoder object. |
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| Method Summary | ||
|---|---|---|
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protected DecodedSignature |
decodeSignature(InputStream encodedSignature,
String signatureAlgorithm,
String digestAlgorithm)
Decodes the input stream. |
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protected DecodedSignature |
decodeSignature(ASN1InputByteArray parameters,
byte[] encodedSignature,
String algorithm,
String digestString)
The function a subclass would implement to finish decoding the signature. |
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protected String |
getEncodingAlgorithm()
Returns the encoding algorithm used, ie. |
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protected String[] |
getSignatureAlgorithms()
Returns the signature algorithm used, such as "DSA", or "RSA_PKCS1_SHA1". |
| Methods inherited from class net.rim.device.api.crypto.encoder.SignatureDecoder |
|---|
decode, decode, decode, decode, decode, getDecoder, register |
| Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public CMS_SignatureDecoder()
CMS_SignatureDecoder object.
| Method Detail |
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protected DecodedSignature decodeSignature(InputStream encodedSignature,
String signatureAlgorithm,
String digestAlgorithm)
throws NoSuchAlgorithmException,
InvalidSignatureEncodingException
SignatureDecoder
decodeSignature in class SignatureDecoderencodedSignature - An input stream containing the encoding.signatureAlgorithm - The signature algorithm used.
DecodedSignature object from which a signature verifier can be obtained.
NoSuchAlgorithmException - Thrown if the specified encoding algorithm cannot be found.
InvalidSignatureEncodingException - Thrown if the signature is incorrectly formatted.
protected DecodedSignature decodeSignature(ASN1InputByteArray parameters,
byte[] encodedSignature,
String algorithm,
String digestString)
throws NoSuchAlgorithmException,
InvalidSignatureEncodingException
parameters - The parameters that specify the details of the
encoding.encodedSignature - A byte array containing the encoded signature.algorithm - A String representing the name of the algorithm used to
encode the data.digestString - A String representing any parameters required by the signature decoder. Often this is a
digest. Can be null.
NoSuchAlgorithmException - Thrown if the specified algorithm is
invalid.
InvalidSignatureEncodingException - Thrown if the signature is
improperly formatted or invalid.protected String getEncodingAlgorithm()
This method will always return the String "CMS".
getEncodingAlgorithm in class SignatureDecoderprotected String[] getSignatureAlgorithms()
getSignatureAlgorithms in class SignatureDecoder
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