More cleanup, especially in EncryptedFile

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.

0 files changed, 0 insertions, 0 deletions