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path: root/lib/events/encryptedfile.cpp
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2022-05-20Apply suggestions from code reviewTobias Fella
Co-authored-by: Alexey Rusakov <Kitsune-Ral@users.sf.net>
2022-05-20Truncate ciphertext buffer to actual size during file encryptionTobias Fella
The ciphertext for AES CTR is exactly as large as the plaintext (not necessarily a multiple of the blocksize!). By truncating the ciphertext, we do not send bytes that will be decrypted to gibberish. As a side node, we probably do not need to initialize the ciphertext buffer larger than the plaintext size at all, but the OpenSSL docs are a bit vague about that.
2022-05-19Fix cipher text buffer initializationTobias Fella
2022-05-18Apply suggestions from code reviewTobias Fella
Co-authored-by: Alexey Rusakov <Kitsune-Ral@users.sf.net>
2022-05-16More work; Update olm pickle & timestamps in database; Remove TODOsTobias Fella
2022-05-16Implement sending encrypted filesTobias Fella
2022-02-16More cleanup, especially in EncryptedFileAlexey Rusakov
For EncryptedFile: - JSON converter bodies moved away to .cpp; - instead of C-style casts, reinterpret_cast is used to convert from (const) char* to (const) unsigned char*; - the size for the target plain text takes into account the case where the cipher block size can be larger than 1 (after reading https://www.openssl.org/docs/man1.1.1/man3/EVP_DecryptUpdate.html). - file decryption is wrapped in #ifdef Quotient_E2EE_ENABLED, to avoid OpenSSL linking errors when compiling without E2EE.
2022-02-16Fix file decryptionTobias Fella
2022-02-09Move includes to .cpp fileTobias Fella
2022-02-07Remove encryptionmanager and various fixesTobias Fella