Signature.engineSign
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protected abstract byte[] engineSign() throws SignatureException
Returns
the signature bytes of the signing operation's result.
Description
SPI: Returns the signature bytes of all the data
updated so far. The signature returned is X.509-encoded.
For more information about the X.509 encoding, see
"Why should I care about X.509 certificates?"
Exceptions
SignatureException
if the engine is not
initialized properly.