Class CASN1EncBitString

class CASN1EncBitString : public CASN1EncPrimitive;

Description

Class for encoding bit strings (keys, for example).

Derivation

• CBase - Base class for all classes to be instantiated on the heap.

• CASN1EncBase - Base class for all ASN.1 types that we can encode.

• CASN1EncPrimitive - All ASN1 primitive type encoding classes derive from here.

• CASN1EncBitString - Class for encoding bit strings (keys, for example).

Members

Defined in CASN1EncBitString:

• NewL(const CASN1EncBase &)Wraps the passed encoding object into a bit string.
• NewL(const TDesC8 &)Constructs a new DER bit string encoder from a bit string that does not have unu...
• NewL(const TDesC8 &,TUint)Constructs a new DER bit string encoder from a bit string that is not octet-alig...
• NewLC(const CASN1EncBase &)Wraps the passed encoding object into a bit string.
• NewLC(const TDesC8 &)Constructs a new DER bit string encoder from a bit string that does not have unu...
• NewLC(const TDesC8 &,TUint)Constructs a new DER bit string encoder from a bit string that is not octet-alig...
• ~CASN1EncBitString()

Inherited from CASN1EncBase:

• CASN1EncBase(const TTagType,const TASN1Class)Protected constructor
• ConstructL()Must call this version from derived classes in their ConstructL, but only once t...
• LengthDER()constGives total number of octets in the DER encoding of this object.
• SetTag(const TTagType,const TASN1Class)Sets tag type/class of the encoding object
• WriteDERL(TDes8 &,TUint &)constWrites entire DER encoding of this object into the given buffer.
• iContentsLengthDERLength of DER encoded content.
• iLengthLengthDERLength of DER encoded length.
• iTagLengthDERLength of DER encoded tag.

Inherited from CASN1EncPrimitive:

• CASN1EncPrimitive(const TTagType)

Inherited from CBase:

• Delete(CBase *)Deletes the specified object.
• Extension_(TUint,TAny *&,TAny *)Extension function
• operator new(TUint)Allocates the object from the heap and then initialises its contents to binary z...
• operator new(TUint,TAny *)Initialises the object to binary zeroes.
• operator new(TUint,TLeave)Allocates the object from the heap and then initialises its contents to binary z...
• operator new(TUint,TLeave,TUint)Allocates the object from the heap and then initialises its contents to binary z...
• operator new(TUint,TUint)Allocates the object from the heap and then initialises its contents to binary z...

IMPORT_C static CASN1EncBitString* NewLC(const TDesC8 &aBitStr);

Description

Constructs a new DER bit string encoder from a bit string that does not have unused bits at the end, i.e. is octet-aligned. The passed string must be in big-endian format.

Parameters

const TDesC8 &aBitStr Octet-aligned bit string.

Return value

CASN1EncBitString * A new DER bit string encoder object, which is left on the cleanup stack.

IMPORT_C static CASN1EncBitString* NewL(const TDesC8 &aBitStr);

Description

Constructs a new DER bit string encoder from a bit string that does not have unused bits at the end, i.e. is octet-aligned. The passed string must be in big-endian format.

Parameters

const TDesC8 &aBitStr Octet-aligned bit string.

Return value

CASN1EncBitString * A new DER bit string encoder object.

IMPORT_C static CASN1EncBitString* NewLC(const TDesC8 &aBitStr, TUint aLengthBits);

Description

Constructs a new DER bit string encoder from a bit string that is not octet-aligned, which means it has unused bits in its last octet. The passed string must be in big-endian format.

Parameters

const TDesC8 &aBitStr Bit string. TUint aLengthBits Length in bits of the passed bit string. The function will panic if aLengthBits is greater than the actual bit length of aBitString, or the difference is more that 7 bits.

Return value

CASN1EncBitString * A new DER bit string encoder object which is left on the cleanup stack.

IMPORT_C static CASN1EncBitString* NewL(const TDesC8 &aBitStr, TUint aLengthBits);

Description

Constructs a new DER bit string encoder from a bit string that is not octet-aligned, which means it has unused bits in its last octet. The passed string must be in big-endian format.

Parameters

const TDesC8 &aBitStr Bit string. TUint aLengthBits Length in bits of the passed bit string. The function will panic if aLengthBits is greater than the actual bit length of aBitString, or the difference is more that 7 bits.

Return value

CASN1EncBitString * A new DER bit string encoder object.

IMPORT_C static CASN1EncBitString* NewL(const CASN1EncBase &aAsnObj);

Description

Wraps the passed encoding object into a bit string.

Parameters

const CASN1EncBase &aAsnObj Encoding object to wrap.

Return value

CASN1EncBitString * A new bit string containing the passed encoding object.

IMPORT_C static CASN1EncBitString* NewLC(const CASN1EncBase &aAsnObj);

Description

Wraps the passed encoding object into a bit string.

Parameters

const CASN1EncBase &aAsnObj Encoding object to wrap.

Return value

CASN1EncBitString * A new bit string containing the passed encoding object on the cleanup stack.

IMPORT_C ~CASN1EncBitString();

Description