anon.crypto
Interface ISignatureVerificationAlgorithm

All Known Subinterfaces:

IMySignature

All Known Implementing Classes:

MyDSASignature, MyECDSASignature, MyRSASignature

public interface ISignatureVerificationAlgorithm

This interface represents an algorithm that verifies cryptographic signatures.

Method Summary

byte[]	decodeForXMLSignature(byte[] a_encodedSignature) Tries to decode a signature in a way as it would meet the W3C standard for XML signature values.
org.bouncycastle.asn1.x509.AlgorithmIdentifier	getIdentifier()
java.lang.String	getXMLSignatureAlgorithmReference() Returns a description of the the signature algorithm for XML signatures as defined in http://www.w3.org/TR/xmldsig-core/#sec-AlgID.
boolean	verify(byte[] a_message, byte[] a_signature) Tests if the signature of a specified message is valid.
boolean	verify(byte[] a_message, int message_offset, int message_len, byte[] a_signature, int signature_offset, int signature_len) Tests if the signature of a specified message is valid.

Method Detail

verify

boolean verify(byte[] a_message,
               byte[] a_signature)

Tests if the signature of a specified message is valid.

Parameters:

a_message - a message

a_signature - a signature

Returns:

true if the signature of a specified message is valid; false otherwiese

verify

boolean verify(byte[] a_message,
               int message_offset,
               int message_len,
               byte[] a_signature,
               int signature_offset,
               int signature_len)

Tests if the signature of a specified message is valid.

Parameters:

a_message - a message

message_offset - start of message

message_len - length of message

a_signature - a signature

signature_offset - start of signature

signature_len - length of signature

Returns:

true if the signature of a specified message is valid; false otherwiese

decodeForXMLSignature

byte[] decodeForXMLSignature(byte[] a_encodedSignature)

Tries to decode a signature in a way as it would meet the W3C standard for XML signature values. Without this decoding, RSA XML signatures cannot be verified.

Parameters:

a_encodedSignature - an encoded signature

Returns:

the decoded signature or null if an error occured

See Also:

http://www.w3.org/TR/xmldsig-core/#sec-SignatureAlg

getXMLSignatureAlgorithmReference

java.lang.String getXMLSignatureAlgorithmReference()

Returns a description of the the signature algorithm for XML signatures as defined in http://www.w3.org/TR/xmldsig-core/#sec-AlgID. This description is optional, documents may be signed without it.

Returns:

a description of the the signature algorithm for XML signatures

See Also:

http://www.w3.org/TR/xmldsig-core/#sec-AlgID

getIdentifier

org.bouncycastle.asn1.x509.AlgorithmIdentifier getIdentifier()