ResponseAPDU
public final class ResponseAPDU
A response APDU as defined in ISO/IEC 7816-4. It consists of a conditional body and a two byte trailer. This class does not attempt to verify that the APDU encodes a semantically valid response.
Instances of this class are immutable. Where data is passed in or out via byte arrays, defensive cloning is performed.
See also
See also
Version
1.0
Date
6 Nov 2017
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Returns the number of data bytes in the response body (Nr) or 0 if this APDU has no body. This call is equivalent to
data.count
.Declaration
Swift
public var nr: Int { get }
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Returns a copy of the data bytes in the response body. If this APDU as no body, this method returns a byte array with a length of zero.
Declaration
Swift
public var data: [UInt8] { get }
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Returns the value of the status byte SW1 as a value between 0 and 255.
Declaration
Swift
public var sw1: UInt8 { get }
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Returns the value of the status byte SW2 as a value between 0 and 255.
Declaration
Swift
public var sw2: UInt8 { get }
-
Returns the value of the status bytes SW1 and SW2 as a single status word SW. It is defined as
UInt16(sw1) << 8 | UInt16(sw2)
.Declaration
Swift
public var sw: UInt16 { get }
-
Returns a copy of the bytes in this APDU.
Declaration
Swift
public var bytes: [UInt8] { get }
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Constructs a ResponseAPDU from a byte array containing the complete APDU contents (conditional body and trailed).
Note that the byte array is cloned to protect against subsequent modification.
Throws
CardError.illegalArgument
if apdu.length is less than 2Declaration
Swift
public init(apdu: [UInt8]) throws
Parameters
apdu
the complete response APDU