get ASN.1 object TLV hexadecimal string at specified string index
string supposed to be a ASN.1 TLV hexadecimal at specified index
ASN.1 TLV hexadecimal string
sidx - string index of ASN.1 TLV hexadecimal
getTLVh("zzz0201fazzz", 3) -> "0201fa"getTLVh("zzz0202fa0czzz", 3) -> "0202fa0c" Copy
getTLVh("zzz0201fazzz", 3) -> "0201fa"getTLVh("zzz0202fa0czzz", 3) -> "0202fa0c"
get ASN.1 object TLV hexadecimal string at specified string index