CAdESSignature cadesSignature = new CAdESSignature(detached);

	        cadesSignature.addSigner(
	            JCP.PROVIDER_NAME,
	            JCP.GOST_DIGEST_2012_256_OID,
	            JCP.GOST_EL_SIGN_2012_256_OID_WITH,
	            privateKey,
	            certList,
	            CAdESType.CAdES_T,
	            tsUrl,
	            false
	        );


	        
	        ByteArrayOutputStream signatureStream = new ByteArrayOutputStream();

	        cadesSignature.open(signatureStream); 
	        cadesSignature.update(source); 

	        cadesSignature.close(); 
	        signatureStream.close();

	        byte[] cadesCms = signatureStream.toByteArray();
		        
	        // Проверка
	        CAdESSignature checkedSignature = new CAdESSignature(cadesCms, source, CAdESType.CAdES_T);
	        checkedSignature.verify(new HashSet<>(certList), null);