Hello again,

I fixed my problem.

Sorry for the trouble.

Oriol Caño

On 10 February 2016 at 12:20, oriol caño <[email protected]> wrote:

> Hello all,
>
> I am using the libtasn1 library API to DER-encode a message.
>
> However, after creating the correct structure, and calling the 
> *asn1_der_coding
> *function twice, as I saw in some code from the library itself, it only
> encodes a part of the message, and not all of it.
>
> When I call the coding function first, it returns me the length needed to
> encode the whole structure. However, after calling the function the second
> time with a buffer of the correct size, it only outputs a buffer with
> barely one quarter of the total size.
>
> I'll append the whole structure at the end of this message.
> The encoding is truncated after a bit string sequence, concretely, the one
> named kdc-options.
>
> Do you have any ideas on why could this be happening?
> Any way of fixing it?
>
> Thanks in advance for your help.
>
> Oriol Caño
>
>
> - Structure printed with the *asn1_print_structure *function, just before
> calling the first *asn1_der_coding *function:
>
> name:NULL  type:SEQUENCE  attr:TAG,
>   name:NULL  type:TAG  value:10  attr:APPLICATION,EXPLICIT,
>   name:pvno  type:INTEGER  value:0x05  attr:TAG,
>     name:NULL  type:TAG  value:1  attr:EXPLICIT,
>   name:msg-type  type:INTEGER  value:0x0a  attr:TAG,
>     name:NULL  type:TAG  value:2  attr:EXPLICIT,
>   name:padata  type:SEQ_OF  attr:TAG,OPTION,
>     name:NULL  type:TAG  value:3  attr:EXPLICIT,
>     name:NULL  type:SEQUENCE
>       name:padata-type  type:INTEGER  attr:TAG,MIN_MAX,
>         name:NULL  type:TAG  value:1  attr:EXPLICIT,
>         name:-2147483648  type:SIZE  value:2147483647
>       name:padata-value  type:OCT_STR  attr:TAG,
>         name:NULL  type:TAG  value:2  attr:EXPLICIT,
>     name:?1  type:SEQUENCE
>       name:padata-type  type:INTEGER  value:0x1c  attr:TAG,MIN_MAX,
>         name:NULL  type:TAG  value:1  attr:EXPLICIT,
>         name:-2147483648  type:SIZE  value:2147483647
>       name:padata-value  type:OCT_STR  value:70612d6b786f766572  attr:TAG,
>         name:NULL  type:TAG  value:2  attr:EXPLICIT,
>     name:?2  type:SEQUENCE
>       name:padata-type  type:INTEGER  value:0x10  attr:TAG,MIN_MAX,
>         name:NULL  type:TAG  value:1  attr:EXPLICIT,
>         name:-2147483648  type:SIZE  value:2147483647
>       name:padata-value  type:OCT_STR  value:300a800830150609  attr:TAG,
>         name:NULL  type:TAG  value:2  attr:EXPLICIT,
>   name:req-body  type:SEQUENCE  attr:TAG,
>     name:NULL  type:TAG  value:4  attr:EXPLICIT,
>     name:kdc-options  type:BIT_STR  value(32):00000000  attr:TAG,SIZE,
>       name:NULL  type:TAG  value:0  attr:EXPLICIT,
>     name:cname  type:SEQUENCE  attr:TAG,OPTION,
>       name:NULL  type:TAG  value:1  attr:EXPLICIT,
>       name:name-type  type:INTEGER  value:0x02  attr:TAG,MIN_MAX,
>         name:NULL  type:TAG  value:0  attr:EXPLICIT,
>         name:-2147483648  type:SIZE  value:2147483647
>       name:name-string  type:SEQ_OF  attr:TAG,
>         name:NULL  type:TAG  value:1  attr:EXPLICIT,
>         name:NULL  type:GENERALSTRING
>         name:?1  type:GENERALSTRING  value:[email protected]
>     name:realm  type:GENERALSTRING  value:SOAD.DEV.ARPA2.ORG  attr:TAG,
>       name:NULL  type:TAG  value:2  attr:EXPLICIT,
>     name:sname  type:SEQUENCE  attr:TAG,OPTION,
>       name:NULL  type:TAG  value:3  attr:EXPLICIT,
>       name:name-type  type:INTEGER  value:0x02  attr:TAG,MIN_MAX,
>         name:NULL  type:TAG  value:0  attr:EXPLICIT,
>         name:-2147483648  type:SIZE  value:2147483647
>       name:name-string  type:SEQ_OF  attr:TAG,
>         name:NULL  type:TAG  value:1  attr:EXPLICIT,
>         name:NULL  type:GENERALSTRING
>         name:?1  type:GENERALSTRING  value:[email protected]
>     name:from  type:GENERALIZED_TIME  value:20160310110054
> attr:TAG,OPTION,
>       name:NULL  type:TAG  value:4  attr:EXPLICIT,
>     name:till  type:GENERALIZED_TIME  value:20160310110054  attr:TAG,
>       name:NULL  type:TAG  value:5  attr:EXPLICIT,
>     name:nonce  type:INTEGER  value:0x6b8b4567  attr:TAG,MIN_MAX,
>       name:NULL  type:TAG  value:7  attr:EXPLICIT,
>       name:0  type:SIZE  value:4294967295
>     name:etype  type:SEQ_OF  attr:TAG,
>       name:NULL  type:TAG  value:8  attr:EXPLICIT,
>       name:NULL  type:INTEGER  attr:MIN_MAX,
>         name:-2147483648  type:SIZE  value:2147483647
>       name:?1  type:INTEGER  value:0x0b  attr:MIN_MAX,
>         name:-2147483648  type:SIZE  value:2147483647
>
>

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