question: public void encodeOctetString ( byte tb [ ] , int tag , int tboffset , int length ) throws EncodeException { encodeByte ( tag ) ; encodeLength ( length ) ; if ( length > 0 ) { ensureFreeBytes ( length ) ; System . arraycopy ( tb , tboffset , buf , offset , length ) ; offset += length ; } }
target:  Encodes a portion of an octet string and a tag.