* @brief Hash data and write it in the buffer.
*
* If the parameter hash is NULL, no result is written back
- * an more data can be appended to already hashed data.
+ * and more data can be appended to already hashed data.
* If not, the result is written back and the hasher is reset.
*
* The hash output parameter must hold at least
* @brief Hash data and allocate space for the hash.
*
* If the parameter hash is NULL, no result is written back
- * an more data can be appended to already hashed data.
+ * and more data can be appended to already hashed data.
* If not, the result is written back and the hasher is reset.
*
* @param this calling object