C# Class Org.BouncyCastle.Crypto.Signers.Iso9796d2Signer

ISO9796-2 - mechanism using a hash function with recovery (scheme 1)

Inheritance: ISignerWithRecovery

Public Methods

Method	Description
BlockUpdate ( byte input, int inOff, int length ) : void	update the internal digest with the byte array in
GenerateSignature ( ) : byte[]	Generate a signature for the loaded message using the key we were initialised with.
GetRecoveredMessage ( ) : byte[]	Return a reference to the recoveredMessage message.
HasFullMessage ( ) : bool	Return true if the full message was recoveredMessage.
Init ( bool forSigning, ICipherParameters parameters ) : void
Iso9796d2Signer ( IAsymmetricBlockCipher cipher, IDigest digest ) : System	Constructor for a signer with an explicit digest trailer.
Iso9796d2Signer ( IAsymmetricBlockCipher cipher, IDigest digest, bool isImplicit ) : System	Generate a signer for the with either implicit or explicit trailers for ISO9796-2.
Reset ( ) : void	reset the internal state
Update ( byte input ) : void	update the internal digest with the byte b
VerifySignature ( byte signature ) : bool	return true if the signature represents a ISO9796-2 signature for the passed in message.

Method	Description
ClearBlock ( byte block ) : void	clear possible sensitive data
IsSameAs ( byte a, byte b ) : bool	compare two byte arrays.

update the internal digest with the byte array in

public BlockUpdate ( byte input, int inOff, int length ) : void
input	byte
inOff	int
length	int
return	void

Generate a signature for the loaded message using the key we were initialised with.

public GenerateSignature ( ) : byte[]
return	byte[]

Return a reference to the recoveredMessage message.

public GetRecoveredMessage ( ) : byte[]
return	byte[]

Return true if the full message was recoveredMessage.

public HasFullMessage ( ) : bool
return	bool

public Init ( bool forSigning, ICipherParameters parameters ) : void
forSigning	bool
parameters	ICipherParameters
return	void

Constructor for a signer with an explicit digest trailer.

public Iso9796d2Signer ( IAsymmetricBlockCipher cipher, IDigest digest ) : System
cipher	IAsymmetricBlockCipher	cipher to use. ///
digest	IDigest	digest to sign with. ///
return	System

Generate a signer for the with either implicit or explicit trailers for ISO9796-2.

public Iso9796d2Signer ( IAsymmetricBlockCipher cipher, IDigest digest, bool isImplicit ) : System
cipher	IAsymmetricBlockCipher	base cipher to use for signature creation/verification
digest	IDigest	digest to use.
isImplicit	bool	whether or not the trailer is implicit or gives the hash.
return	System

reset the internal state

public Reset ( ) : void
return	void

update the internal digest with the byte b

public Update ( byte input ) : void
input	byte
return	void

return true if the signature represents a ISO9796-2 signature for the passed in message.

public VerifySignature ( byte signature ) : bool
signature	byte
return	bool