Interface for creating an RSA signature. More...

Public Member Functions
byte[]	sign (Source aSource, int aVersion, int aHashAlgorithm)
	Compute an RSA 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	v_1_5 = 0
	RSA version (padding): RSA 1.5 (PKCS1-v1_5).
static final int	v_2_0 = 1
	RSA version (padding): RSA 2.0 (OAEP).
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_ripemd160 = 5
	Hash algorithm: RIPEMD-160.

Detailed Description

Interface for creating an RSA signature.

Selection of the certificate is up to the implementation.

Member Function Documentation

byte [] de.softpro.doc.SignRSA.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.SignRSA.getCertificateCount ( )

Get the number of available intermediate certificates.

Returns:: The number of available intermediate certificates.

String de.softpro.doc.SignRSA.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.SignRSA.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() (ie, the size of the private key in octets) or a negative value on error.

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

Get the signing certificate.

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

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

Compute an RSA signature.

Parameters:

[in]	aSource	An object providing data to be hashed and signed.
[in]	aVersion	RSA version (v_1_5 or v_2_0).
[in]	aHashAlgorithm	Hash algorithm (ha_sha1, ha_sha256, ha_sha384, ha_sha512, or ha_ripemd160).