protected void engineinitverify(publickey publickey) throws invalidkeyexception {
cipherparameters param;
if (publickey instanceof ecpublickey) {
param = ecutil.generatepublickeyparameter(publickey);
} else if (publickey instanceof gost3410key) {
param = gost3410util.generatepublickeyparameter(publickey);
} else {
try {
byte[] bytes = publickey.getencoded();
publickey = bouncycastleprovider.getpublickey(subjectpublickeyinfo.getinstance(bytes));
if (publickey instanceof ecpublickey) {
param = ecutil.generatepublickeyparameter(publickey);
} else {
throw new invalidkeyexception("can't recognise key type in dsa based signer");
}
} catch (exception e) {
throw new invalidkeyexception("can't recognise key type in dsa based signer");
}
}
digest.reset();
signer.init(false, param);
}
protected void engineinitsign(privatekey privatekey) throws invalidkeyexception {
cipherparameters param;
if (privatekey instanceof eckey) {
param = ecutil.generateprivatekeyparameter(privatekey);
} else {
param = gost3410util.generateprivatekeyparameter(privatekey);
}
digest.reset();
if (random != null) {
signer.init(true, new parameterswithrandom(param, random));
} else {
signer.init(true, param);
}
}