Some new features #29
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Add. resetiv method to encrypt/decrypt. Fix. HMAC clone method. Add. clone method to encrypt/decrypt. Add. key and IV for encrypt/decrypt can be arrays. Add. hmac:final() can be called multiple times. Add. some tests.
Reorganize encrypt/decrypt code. Update encrypt test ```lua ctx:set_writer(fn) -- call fn(chunk) ctx:set_writer(fn, fctx) -- call fn(fctx, chunk) ctx:set_writer(stream) -- call stream:write(chunk) -- if writer is setted then update/final methods return `self` ```
``` EVP_DecryptUpdate ... if padding is enabled the decrypted data buffer `out` passed to EVP_DecryptUpdate() should have sufficient room for (inl + cipher_block_size) bytes unless the cipher block size is 1 in which case `inl` bytes is sufficient. ``` Add. LCRYPTO_MAX_BUFFER_SIZE macro defines maximum size of temporary buffer used by update methods. All update methods (encrypt/decrypt/open/seal) use same implementation.
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Tested on WinXP / OpenSSL 1.0.1c / Lua (5.1/5.2) / MSVC 2010 Express
Reorganize code that works with EVP_CIPHER_CTX