GDCM
2.2.3
|
Anonymizer This class is a multi purpose anonymizer. It can work in 2 mode: More...
#include <gdcmAnonymizer.h>
Public Member Functions | |
Anonymizer () | |
~Anonymizer () | |
bool | BasicApplicationLevelConfidentialityProfile (bool deidentify=true) |
bool | Empty (Tag const &t) |
const CryptographicMessageSyntax * | GetCryptographicMessageSyntax () const |
File & | GetFile () |
bool | Remove (Tag const &t) |
bool | RemoveGroupLength () |
Main function that loop over all elements and remove group length. | |
bool | RemovePrivateTags () |
Main function that loop over all elements and remove private tags. | |
bool | RemoveRetired () |
Main function that loop over all elements and remove retired element. | |
bool | Replace (Tag const &t, const char *value) |
bool | Replace (Tag const &t, const char *value, VL const &vl) |
void | SetCryptographicMessageSyntax (CryptographicMessageSyntax *cms) |
Set/Get CMS key that will be used to encrypt the dataset within BasicApplicationLevelConfidentialityProfile. | |
void | SetFile (const File &f) |
Set/Get File. | |
Static Public Member Functions | |
static std::vector< Tag > | GetBasicApplicationLevelConfidentialityProfileAttributes () |
Return the list of Tag that will be considered when anonymizing a DICOM file. | |
static SmartPointer< Anonymizer > | New () |
for wrapped language: instantiate a reference counted object | |
Protected Member Functions | |
bool | BALCPProtect (DataSet &ds, Tag const &tag, const IOD &iod) |
bool | CanEmptyTag (Tag const &tag, const IOD &iod) const |
void | RecurseDataSet (DataSet &ds) |
Anonymizer This class is a multi purpose anonymizer. It can work in 2 mode:
1. dumb mode This is a dumb anonymizer implementation. All it allows user is simple operation such as:
Tag based functions:
DataSet based functions:
All function calls actually execute the user specified request. Previous implementation were calling a general Anonymize function but traversing a std::set is O(n) operation, while a simple user specified request is O(log(n)) operation. So 'm' user interaction is O(m*log(n)) which is < O(n) complexity.
2. smart mode this mode implements the Basic Application Level Confidentiality Profile (DICOM PS 3.15-2008) In this case, it is extremely important to use the same gdcm::Anonymizer class when anonymizing a FileSet. Once the gdcm::Anonymizer is destroyed its memory of known (already processed) UIDs will be lost. which will make the anonymizer behaves incorrectly for attributes such as Series UID Study UID where user want some consistency. When attribute is Type 1 / Type 1C, a dummy generator will take in the existing value and produce a dummy value (a sha1 representation). sha1 algorithm is considered to be cryptographically strong (compared to md5sum) so that we meet the following two conditions:
This class implement the Subject/Observer pattern trigger the following event:
gdcm::Anonymizer::Anonymizer | ( | ) | [inline] |
bool gdcm::Anonymizer::BALCPProtect | ( | DataSet & | ds, |
Tag const & | tag, | ||
const IOD & | iod | ||
) | [protected] |
bool gdcm::Anonymizer::BasicApplicationLevelConfidentialityProfile | ( | bool | deidentify = true | ) |
PS 3.15 / E.1.1 De-Identifier An Application may claim conformance to the Basic Application Level Confidentiality Profile as a deidentifier if it protects all Attributes that might be used by unauthorized entities to identify the patient. NOT THREAD SAFE
bool gdcm::Anonymizer::CanEmptyTag | ( | Tag const & | tag, |
const IOD & | iod | ||
) | const [protected] |
bool gdcm::Anonymizer::Empty | ( | Tag const & | t | ) |
Make Tag t empty (if not found tag will be created) Warning: does not handle SQ element
static std::vector<Tag> gdcm::Anonymizer::GetBasicApplicationLevelConfidentialityProfileAttributes | ( | ) | [static] |
Return the list of Tag that will be considered when anonymizing a DICOM file.
File& gdcm::Anonymizer::GetFile | ( | ) | [inline] |
static SmartPointer<Anonymizer> gdcm::Anonymizer::New | ( | ) | [inline, static] |
for wrapped language: instantiate a reference counted object
void gdcm::Anonymizer::RecurseDataSet | ( | DataSet & | ds | ) | [protected] |
bool gdcm::Anonymizer::Remove | ( | Tag const & | t | ) |
remove a tag (even a SQ can be removed) Return code is false when tag t cannot be found
bool gdcm::Anonymizer::RemoveGroupLength | ( | ) |
Main function that loop over all elements and remove group length.
bool gdcm::Anonymizer::RemovePrivateTags | ( | ) |
Main function that loop over all elements and remove private tags.
bool gdcm::Anonymizer::RemoveRetired | ( | ) |
Main function that loop over all elements and remove retired element.
bool gdcm::Anonymizer::Replace | ( | Tag const & | t, |
const char * | value | ||
) |
Replace tag with another value, if tag is not found it will be created: WARNING: this function can only execute if tag is a VRASCII
bool gdcm::Anonymizer::Replace | ( | Tag const & | t, |
const char * | value, | ||
VL const & | vl | ||
) |
when the value contains \0, it is a good idea to specify the length. This function is required when dealing with VRBINARY tag
Set/Get CMS key that will be used to encrypt the dataset within BasicApplicationLevelConfidentialityProfile.
void gdcm::Anonymizer::SetFile | ( | const File & | f | ) | [inline] |
Set/Get File.