Encodes a private key object and stores the result in a buffer. \param key the EC_KEY object to encode \param out the buffer for the result (if NULL the function returns number of bytes needed). \return 1 on success and 0 if an error occurred.
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Encodes a private key object and stores the result in a buffer. \param key the EC_KEY object to encode \param out the buffer for the result (if NULL the function returns number of bytes needed). \return 1 on success and 0 if an error occurred.