I'd like the PER to encode a null-terminated string.
That is a variable length string with no length field
encoded - the null character would delimit the string.
Is this possible with ASN.1?
I need this to specify an existing protocol in
ASN.1+PER.
Dear Mr. George:
If you're saying that the encoding of the existing protocol contains a
variable length string, where the way of determining the length of the
encoded data is by looking for the null, the answer is no, this is not
possible with ASN.1. If the string is of a fixed length, the answer is
yes, since the null would be treated as a character like any other.
Finally, let me make sure you are not confusing the way data is
represented in the computer (null-terminated strings) with the way it is
encoded. Most ASN.1 character strings are represented as null-terminated
strings in the computer, but this is converted to a length field and
a value field when it's encoded. In PER, the length field is omitted when
the length is fixed.
If you have further questions, please supply us with an example of the
encoded data so we can be certain of your intention.
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Conrad Sigona Voice Mail : 1-732-302-9669 x400
OSS Nokalva Fax : 1-614-388-4156
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