Interface for creating an ECDSA signature. More...

Public Member Functions
byte[]	sign (Source aSource, int aHashAlgorithm)
	Compute an ECDSA signature.
int	getSignatureSize ()
	Get the size of the signature that will be computed by sign().
byte[]	getSigningCertificate ()
	Get the signing certificate.
int	getCertificateCount ()
	Get the number of available intermediate certificates.
byte[]	getCertificate (int aIndex)
	Get an intermediate certificate.
String	getErrorMessage ()
	Get an error message for the last operation.
Static Public Attributes
static final int	ha_sha1 = 1
	Hash algorithm: SHA-1.
static final int	ha_sha256 = 2
	Hash algorithm: SHA-256.
static final int	ha_sha384 = 3
	Hash algorithm: SHA-384.
static final int	ha_sha512 = 4
	Hash algorithm: SHA-512.
static final int	ha_sha224 = 7
	Hash algorithm: SHA-224.

Detailed Description

Interface for creating an ECDSA signature.

Selection of the certificate is up to the implementation.

Member Function Documentation

byte [] de.softpro.doc.SignECDSA.getCertificate ( int aIndex )

Get an intermediate certificate.

Parameters:

[in] aIndex The zero-based index of the intermediate certificate, see getCertificateCount().

Returns:: The requested intermediate certificate (DER-encoded X.509) or null on error.

int de.softpro.doc.SignECDSA.getCertificateCount ( )

Get the number of available intermediate certificates.

Returns:: The number of available intermediate certificates.

String de.softpro.doc.SignECDSA.getErrorMessage ( )

Get an error message for the last operation.

After any method of this object has been called, this function shall return an error message (possibly empty if the most recently called method didn't fail).

Returns:: An error message (possibly empty if the last operation succeeded).

int de.softpro.doc.SignECDSA.getSignatureSize ( )

Get the size of the signature that will be computed by sign().

Returns:: The size in octets of the signature that will be computed by sign() or a negative value on error.

byte [] de.softpro.doc.SignECDSA.getSigningCertificate ( )

Get the signing certificate.

Returns:: The signing certificate (DER-encoded X.509) or null on error.

byte [] de.softpro.doc.SignECDSA.sign	(	Source	aSource,
		int	aHashAlgorithm
	)

Compute an ECDSA signature.

Parameters:

[in]	aSource	An object providing data to be hashed and signed.
[in]	aHashAlgorithm	Hash algorithm (ha_sha1, ha_sha224, ha_sha256, ha_sha384, or ha_sha512).