private void setSignatureParameters(Signature var1, DEREncodable var2)
throws NoSuchAlgorithmException, SignatureException, InvalidKeyException {
if (var2 != null) {
if (!DERNull.INSTANCE.equals(var2)) {
String var3 = var1.getAlgorithm();
Provider var4 = var1.getProvider();
AlgorithmParameters var5 = AlgorithmParameters.getInstance(var3, var4);
try {
byte[] var6 = var2.getDERObject().getDEREncoded();
var5.init(var6);
} catch (IOException var17) {
StringBuilder var9 = (new StringBuilder()).append("IOException decoding parameters: ");
String var10 = var17.getMessage();
String var11 = var9.append(var10).toString();
throw new SignatureException(var11);
}
if (var1.getAlgorithm().endsWith("MGF1")) {
try {
AlgorithmParameterSpec var7 = var5.getParameterSpec(PSSParameterSpec.class);
var1.setParameter(var7);
} catch (GeneralSecurityException var16) {
StringBuilder var13 = (new StringBuilder()).append("Exception extracting parameters: ");
String var14 = var16.getMessage();
String var15 = var13.append(var14).toString();
throw new SignatureException(var15);
}
}
}
}
}
static String getSignatureName(AlgorithmIdentifier var0) {
DEREncodable var1 = var0.getParameters();
String var7;
if (var1 != null && !DERNull.INSTANCE.equals(var1)) {
DERObjectIdentifier var2 = var0.getObjectId();
DERObjectIdentifier var3 = PKCSObjectIdentifiers.id_RSASSA_PSS;
if (var2.equals(var3)) {
RSASSAPSSparams var4 = RSASSAPSSparams.getInstance(var1);
StringBuilder var5 = new StringBuilder();
String var6 = getDigestAlgName(var4.getHashAlgorithm().getObjectId());
var7 = var5.append(var6).append("withRSAandMGF1").toString();
return var7;
}
}
var7 = var0.getObjectId().getId();
return var7;
}