Public Member Functions | |
SHAiButtonUser18 (SHAiButtonCopr copr, OneWireContainer18 owc, boolean formatDevice, byte[] authSecret) throws OneWireException, OneWireIOException | |
SHAiButtonUser18 (byte[] coprBindData, byte[] coprBindCode, byte[] fileName, int fileNameExt, OneWireContainer18 owc, boolean formatDevice, byte[] authSecret) throws OneWireException, OneWireIOException | |
SHAiButtonUser18 (SHAiButtonCopr copr, OneWireContainer18 owc) throws OneWireException, OneWireIOException | |
SHAiButtonUser18 (byte[] coprBindCode, byte[] fileName, int fileNameExt, OneWireContainer18 owc) throws OneWireException, OneWireIOException | |
SHAiButtonUser18 (SHAiButtonCopr copr) | |
synchronized boolean | setiButton18 (OneWireContainer18 owc) throws OneWireException, OneWireIOException |
synchronized boolean | setiButtonUser (DSPortAdapter adapter, byte[] address) throws OneWireException, OneWireIOException |
synchronized boolean | setiButtonUser (byte[] address) throws OneWireException, OneWireIOException |
synchronized int | getWriteCycleCounter () throws OneWireException, OneWireIOException |
synchronized boolean | hasWriteCycleCounter () |
Returns true if this buttons account data is stored on a page that has a write cycle counter. | |
void | getFullBindCode (byte[] l_fullBindCode, int offset) |
byte | getAuthorizationCommand () |
synchronized boolean | writeAccountData (byte[] dataBuffer, int offset) throws OneWireException, OneWireIOException |
synchronized boolean | readAccountData (byte[] dataBuffer, int offset) throws OneWireException, OneWireIOException |
synchronized int | readAccountData (byte[] chlg, int chlgStart, byte[] dataBuffer, int dataStart, byte[] mac, int macStart) throws OneWireException, OneWireIOException |
Protected Member Functions | |
SHAiButtonUser18 () | |
Protected Attributes | |
OneWireContainer18 | ibc = null |
Reference to the OneWireContainer. |
SHAiButtonUser18 | ( | ) | [protected] |
No default constructor for user apps. At bare minimum, you need a reference to a SHAiButtonCopr
before you can construct a SHAiButtonUser
.
SHAiButtonUser18 | ( | SHAiButtonCopr | copr, | |
OneWireContainer18 | owc, | |||
boolean | formatDevice, | |||
byte[] | authSecret | |||
) | throws OneWireException, OneWireIOException |
Initialize a DS1963S as a fresh user iButton for a given SHA service. This constructor not only creates the service file for the user iButton using the TMEX file structure, but it also installs the master authentication secret and binds it to the iButton (making it unique for a particular button). Optionally, the device can be formatted before the service file is installed.
copr | The SHAiButtonCopr to which the user object is tied. This Coprocessor contains the necessary binding code and service filename, necessary for both locating a user and recreating his unique secret. | |
owc | The DS1963S iButton that this object will refer to. | |
formatDevice | If true , the TMEX filesystem will be formatted before the account service file is created. | |
authSecret | The master authentication secret for the systm. |
OneWireIOException | on a 1-Wire communication error such as reading an incorrect CRC from a 1-Wire device. This could be caused by a physical interruption in the 1-Wire Network due to shorts or a newly arriving 1-Wire device issuing a 'presence pulse'. | |
OneWireException | on a communication or setup error with the 1-Wire adapter |
SHAiButtonUser18 | ( | byte[] | coprBindData, | |
byte[] | coprBindCode, | |||
byte[] | fileName, | |||
int | fileNameExt, | |||
OneWireContainer18 | owc, | |||
boolean | formatDevice, | |||
byte[] | authSecret | |||
) | throws OneWireException, OneWireIOException |
Initialize a DS1963S as a fresh user iButton for a given SHA service. This constructor not only creates the service file for the user iButton using the TMEX file structure, but it also installs the master authentication secret and binds it to the iButton (making it unique for a particular button). Optionally, the device can be formatted before the service file is installed.
coprBindData | The Coprocessor Bind Data, used to create a unique secret for this user token. | |
coprBindCode | The Coprocessor Bind Code without the user-specific information, used to create a unique secret for this user token. | |
fileName | The file name for the account info. | |
fileNameExt | The file extenstion for the account info | |
owc | The DS1963S iButton that this object will refer to. | |
formatDevice | If true , the TMEX filesystem will be formatted before the account service file is created. | |
authSecret | The master authentication secret for the systm. |
OneWireIOException | on a 1-Wire communication error such as reading an incorrect CRC from a 1-Wire device. This could be caused by a physical interruption in the 1-Wire Network due to shorts or a newly arriving 1-Wire device issuing a 'presence pulse'. | |
OneWireException | on a communication or setup error with the 1-Wire adapter |
SHAiButtonUser18 | ( | SHAiButtonCopr | copr, | |
OneWireContainer18 | owc | |||
) | throws OneWireException, OneWireIOException |
Creates a valid SHAiButtonUser object. If the service file, whose name is taken from the SHAiButtonCopr
, is not found on the user iButton, a OneWireException is thrown with the message "Invalid SHA user".
copr | The SHAiButtonCopr to which the user object is tied. This Coprocessor contains the necessary binding code and service filename, necessary for both locating a user and recreating his unique secret. | |
owc | The DS1963S iButton that this object will refer to. |
OneWireIOException | on a 1-Wire communication error such as reading an incorrect CRC from a 1-Wire device. This could be caused by a physical interruption in the 1-Wire Network due to shorts or a newly arriving 1-Wire device issuing a 'presence pulse'. | |
OneWireException | on a communication or setup error with the 1-Wire adapter |
SHAiButtonUser18 | ( | byte[] | coprBindCode, | |
byte[] | fileName, | |||
int | fileNameExt, | |||
OneWireContainer18 | owc | |||
) | throws OneWireException, OneWireIOException |
Creates a valid SHAiButtonUser object. If the service file, whose name is taken from the SHAiButtonCopr
, is not found on the user iButton, a OneWireException is thrown with the message "Invalid SHA user".
coprBindCode | The Coprocessor Bind Code without the user-specific information. | |
fileName | The file name of the account file | |
fileNameExt | The file extenstion of the account file | |
owc | The DS1963S iButton that this object will refer to. |
OneWireIOException | on a 1-Wire communication error such as reading an incorrect CRC from a 1-Wire device. This could be caused by a physical interruption in the 1-Wire Network due to shorts or a newly arriving 1-Wire device issuing a 'presence pulse'. | |
OneWireException | on a communication or setup error with the 1-Wire adapter |
SHAiButtonUser18 | ( | SHAiButtonCopr | copr | ) |
Creates a mostly unitialized SHAiButtonUser object. This constructor merely copies the coprocessors 7 byte binding code into a local cache and stores the name of the account service file used for all user iButtons.
Since this constructor leaves data unitialized, you should be very careful with the use of it. It is expected that after calling this constructor, the user will call setiButton
to finish the initialization process. On memory-starved platforms, this should help optimize memory usage.
copr | The SHAiButtonCopr to which the user object is tied. This Coprocessor contains the necessary binding code and service filename, necessary for both locating a user and recreating his unique secret. |
synchronized boolean setiButton18 | ( | OneWireContainer18 | owc | ) | throws OneWireException, OneWireIOException |
Modifies this SHA iButton so that it refers to another DS1963S container. This function only copies the reference to the OneWireContainer, copes the reference to it's 1-Wire address, and then asserts that the iButton contains a valid acccount info file associated with the system.
owc | The OneWireContainer18 this object will refer to. |
true
if a valid account service file exists on this OneWireContainer18
.OneWireIOException | on a 1-Wire communication error such as reading an incorrect CRC from a 1-Wire device. This could be caused by a physical interruption in the 1-Wire Network due to shorts or a newly arriving 1-Wire device issuing a 'presence pulse'. | |
OneWireException | on a communication or setup error with the 1-Wire adapter |
synchronized boolean setiButtonUser | ( | DSPortAdapter | adapter, | |
byte[] | address | |||
) | throws OneWireException, OneWireIOException [virtual] |
Modifies this SHA iButton so that it refers to another 1963S. If this object already has an appropriate instance of OneWireContainer, that instance is updated with the new address.
adapter | The adapter that the device can be found on. | |
address | The address of the 1-Wire device |
true
if a valid account service file exists on this OneWireContainer18
.OneWireIOException | on a 1-Wire communication error such as reading an incorrect CRC from a 1-Wire device. This could be caused by a physical interruption in the 1-Wire Network due to shorts or a newly arriving 1-Wire device issuing a 'presence pulse'. | |
OneWireException | on a communication or setup error with the 1-Wire adapter |
Implements SHAiButtonUser.
synchronized boolean setiButtonUser | ( | byte[] | address | ) | throws OneWireException, OneWireIOException [virtual] |
Modifies this SHA iButton so that it refers to another device. If this object does not already has an appropriate instance of OneWireContainer, it returns false immediately, because there is no adapter info available. Otherwise, it reuses the same adapter.
address | The address of the 1-Wire device |
true
if a valid account service file exists on this OneWireContainer18
.OneWireIOException | on a 1-Wire communication error such as reading an incorrect CRC from a 1-Wire device. This could be caused by a physical interruption in the 1-Wire Network due to shorts or a newly arriving 1-Wire device issuing a 'presence pulse'. | |
OneWireException | on a communication or setup error with the 1-Wire adapter |
Implements SHAiButtonUser.
synchronized int getWriteCycleCounter | ( | ) | throws OneWireException, OneWireIOException [virtual] |
Returns the value of the write cycle counter for the page where the account data is stored. If the write cycle counter has ever been retrieved, this returns the cached value. Otherwise, this method reads the value from the part.
OneWireIOException | on a 1-Wire communication error such as reading an incorrect CRC from a 1-Wire device. This could be caused by a physical interruption in the 1-Wire Network due to shorts or a newly arriving 1-Wire device issuing a 'presence pulse'. | |
OneWireException | on a communication or setup error with the 1-Wire adapter |
Implements SHAiButtonUser.
synchronized boolean hasWriteCycleCounter | ( | ) | [virtual] |
Returns true
if this buttons account data is stored on a page that has a write cycle counter.
true
if account page has write cycle counter. Implements SHAiButtonUser.
void getFullBindCode | ( | byte[] | l_fullBindCode, | |
int | offset | |||
) | [virtual] |
This function creates the full 15-byte binding data for the coprocessor to use to recreate this user's secret on the copr's workspace page. This function is located in the SHAiButtonUser class to support binding codes for user buttons who use alternate techniques (such as the DS1961S) for secret computation.
For the DS1963S user iButton, the format of the full bind code is as follows:
(bindCode+0), (bindCode+1), (bindCode+2), (bindCode+3), (svcPageNum), (deviceAN+0), (deviceAN+1), (deviceAN+2), (deviceAN+3), (deviceAN+4), (deviceAN+5), (deviceAN+6), (bindCode+4), (bindCode+5), (bindCode+6)
bindCode | the 7-byte binding code from coprocessor's service file | |
fullBindCode | the 15-byte full binding code to to be copied into the coprocessor's scratchpad. There should be 15 bytes available starting from the offset. | |
offset | the offset into fullBindCode where copying should begin. |
Implements SHAiButtonUser.
byte getAuthorizationCommand | ( | ) | [virtual] |
Returns a byte representing the appropriate authorization command for the coprocessor to use to authenticate this user. For a DS1963S, the authentication command is VALIDATE_PAGE.
Implements SHAiButtonUser.
synchronized boolean writeAccountData | ( | byte[] | dataBuffer, | |
int | offset | |||
) | throws OneWireException, OneWireIOException [virtual] |
Writes the account data to the SHAiButton. First, this function asserts that the account page number is known. The account data is copied from dataBuffer starting at the offset. If there are less than 32 bytes available to copy, this function only copies the bytes that are available.
dataBuffer | the buffer to copy the account data from | |
offset | the index into the buffer where copying should begin |
OneWireIOException | on a 1-Wire communication error such as reading an incorrect CRC from a 1-Wire device. This could be caused by a physical interruption in the 1-Wire Network due to shorts or a newly arriving 1-Wire device issuing a 'presence pulse'. | |
OneWireException | on a communication or setup error with the 1-Wire adapter |
Implements SHAiButtonUser.
synchronized boolean readAccountData | ( | byte[] | dataBuffer, | |
int | offset | |||
) | throws OneWireException, OneWireIOException [virtual] |
Reads the account data off the SHAiButton using a standard READ command. First, this function asserts that the account page number is known as well as the length of the account file. The 32 byte account data page is copied into dataBuffer starting at the given offset.
dataBuffer | the buffer to copy the account data into | |
offset | the index into the buffer where copying should begin |
OneWireIOException | on a 1-Wire communication error such as reading an incorrect CRC from a 1-Wire device. This could be caused by a physical interruption in the 1-Wire Network due to shorts or a newly arriving 1-Wire device issuing a 'presence pulse'. | |
OneWireException | on a communication or setup error with the 1-Wire adapter |
Implements SHAiButtonUser.
synchronized int readAccountData | ( | byte[] | chlg, | |
int | chlgStart, | |||
byte[] | dataBuffer, | |||
int | dataStart, | |||
byte[] | mac, | |||
int | macStart | |||
) | throws OneWireException, OneWireIOException [virtual] |
Reads the account data off the SHAiButton using a READ_AUTHENTICATE command. First, this function asserts that the account page number is known as well as the length of the account file. Then it copies the 3 byte challenge to the scratchpad before sending the command for READ_AUTHENTICATE. The 32 byte account data page is copied into dataBuffer starting at dataStart.
In addition to the account data, this function also returns a calculated MAC. The MAC requires 20 bytes after the start index. The return value is the write cycle counter value for the account data page
chlg | the buffer containing a 3-byte random challenge. | |
chlgStart | the index into the buffer where the 3 byte challenge begins. | |
dataBuffer | the buffer to copy the account data into | |
dataStart | the index into the buffer where copying should begin | |
mac | the buffer to copy the resulting Message Authentication Code | |
macStart | the index into the mac buffer to start copying |
OneWireIOException | on a 1-Wire communication error such as reading an incorrect CRC from a 1-Wire device. This could be caused by a physical interruption in the 1-Wire Network due to shorts or a newly arriving 1-Wire device issuing a 'presence pulse'. | |
OneWireException | on a communication or setup error with the 1-Wire adapter |
Implements SHAiButtonUser.