From e899668213ee8f7d3566bb5754b488d8633c30c7 Mon Sep 17 00:00:00 2001 From: Marvin W Date: Tue, 10 Sep 2019 20:56:00 +0200 Subject: Add JET support --- .../omemo/src/file_transfer/file_decryptor.vala | 24 ++++++++++------------ 1 file changed, 11 insertions(+), 13 deletions(-) (limited to 'plugins/omemo/src/file_transfer/file_decryptor.vala') diff --git a/plugins/omemo/src/file_transfer/file_decryptor.vala b/plugins/omemo/src/file_transfer/file_decryptor.vala index bc6f8592..d60ecdc8 100644 --- a/plugins/omemo/src/file_transfer/file_decryptor.vala +++ b/plugins/omemo/src/file_transfer/file_decryptor.vala @@ -1,5 +1,6 @@ using Dino.Entities; +using Crypto; using Signal; namespace Dino.Plugins.Omemo { @@ -56,20 +57,17 @@ public class OmemoFileDecryptor : FileDecryptor, Object { key = iv_and_key[16:48]; } - // Read data - uint8[] buf = new uint8[256]; - Array data = new Array(false, true, 0); - size_t len = -1; - do { - len = yield encrypted_stream.read_async(buf); - data.append_vals(buf, (uint) len); - } while(len > 0); - - // Decrypt - uint8[] cleartext = Signal.aes_decrypt(Cipher.AES_GCM_NOPADDING, key, iv, data.data); file_transfer.encryption = Encryption.OMEMO; - return new MemoryInputStream.from_data(cleartext); - } catch (Error e) { + debug("Decrypting file %s from %s", file_transfer.file_name, file_transfer.server_file_name); + + SymmetricCipher cipher = new SymmetricCipher("AES-GCM"); + cipher.set_key(key); + cipher.set_iv(iv); + return new ConverterInputStream(encrypted_stream, new SymmetricCipherDecrypter((owned) cipher)); + + } catch (Crypto.Error e) { + throw new FileReceiveError.DECRYPTION_FAILED("OMEMO file decryption error: %s".printf(e.message)); + } catch (GLib.Error e) { throw new FileReceiveError.DECRYPTION_FAILED("OMEMO file decryption error: %s".printf(e.message)); } } -- cgit v1.2.3-70-g09d2