X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;ds=sidebyside;f=docs%2Fda%2Fdb0%2Fclass_m_utils_1_1_hash_1_1_hash.html;fp=docs%2Fda%2Fdb0%2Fclass_m_utils_1_1_hash_1_1_hash.html;h=50e03fc59cb241029dc722b7cb9231a67afaaf8b;hb=b6df766e60e1a6239c836c825c224cefb1644bda;hp=0000000000000000000000000000000000000000;hpb=f903add3e120e0084767a8cf60ad4305c5aa5c4a;p=mutilities%2FMUtilities.git diff --git a/docs/da/db0/class_m_utils_1_1_hash_1_1_hash.html b/docs/da/db0/class_m_utils_1_1_hash_1_1_hash.html new file mode 100644 index 0000000..50e03fc --- /dev/null +++ b/docs/da/db0/class_m_utils_1_1_hash_1_1_hash.html @@ -0,0 +1,271 @@ + + +
+ + + + +
+ MuldeR's Utilities for Qt
+
+ MUtilities
+ |
+
This abstract class specifies the generic interface for all support hash algorithms. + More...
+ +#include <Hash.h>
+Public Member Functions | |
bool | update (const quint8 *const data, const quint32 len) |
Process the next chunk of input data. More... | |
bool | update (const QByteArray &data) |
Process the next chunk of input data. More... | |
bool | update (QFile &file) |
Process the next chunk of input data. More... | |
QByteArray | digest (const bool bAsHex=true) |
Retrieve the hash value. More... | |
+Protected Member Functions | |
+ | Hash (const char *key=NULL) |
+virtual bool | process (const quint8 *const data, const quint32 len)=0 |
+virtual QByteArray | finalize (void)=0 |
This abstract class specifies the generic interface for all support hash algorithms.
+In order to compute a hash value (digest) call the the Hash::update() function repeatedly until all input data (i.e. the complete "message") has been processed. Then call the Hash::digest() function to retrieve the final hash value.
+All overloads of the Hash::update() function may be called in an interleaved fashion as needed.
+This class is not thread-safe, i.e. do not call the same Hash instance from difference threads, unless serialization is ensured (e.g. by means of a Mutex). It is safe, however, to call different different Hash instances from difference threads concurrently.
+
+
|
+ +inline | +
Retrieve the hash value.
+This function is used to retrieve the final hash value (digest), after all input data has been processed successfully.
+bAsHex | If set to true , the function returns the hash value as a Hexadecimal-encoded ASCII string; if set to false , the function returns the hash value as "raw" bytes. |
bAsHex
parameter.
+
|
+ +inline | +
Process the next chunk of input data.
+Updates the internal state of the hash function by processing the next chunk of input that. Can be called repeatedly, until until all input data has been processed.
+data | A read-only pointer to the memory buffer holding the input data to be processed. |
len | The length of the input data, in bytes. The data parameter must be pointing to a memory buffer that is at least len bytes in size. |
true
, if the input data was processed successfully; otherwise it returns false
.
+
|
+ +inline | +
Process the next chunk of input data.
+Updates the internal state of the hash function by processing the next chunk of input that. Can be called repeatedly, until until all input data has been processed.
+data | A read-only reference to a QByteArray object holding the input data to be processed. All bytes in the QByteArray object will be processed. |
true
, if the input data was processed successfully; otherwise it returns false
. bool MUtils::Hash::Hash::update | +( | +QFile & | +file | ) | ++ |
Process the next chunk of input data.
+Updates the internal state of the hash function by processing the next chunk of input that. Can be called repeatedly, until until all input data has been processed.
+data | A reference to a QFile object. The QFile object must be open and readable. All data from the current file position to the end of the file will be processed. |
true
, if all data in the file was processed successfully; otherwise (e.g. in case of file read errors) it returns false
.