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<a href="https://gitlab.com/jas">Simon Josefsson</a>
<a href="https://gitlab.com/gnutls/libtasn1/-/issues/47#note_1677316869">commented</a>:
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<p dir="auto" style="color: #333238; margin: 0 0 16px;" align="initial">While I think the assignment file in the original report is incorrect, there may be some problem with BIT STRING encodings:</p>
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<pre class="code highlight js-syntax-highlight language-plaintext" lang="plaintext" v-pre="true" style='display: block; font-size: 14px; color: #333238; line-height: 1.6em; overflow-x: auto; border-radius: 4px; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; margin: 0 0 16px; padding: 12px; border: 1px solid #dcdcde;'><code style='font-size: 0.875rem; color: inherit; word-wrap: normal; word-break: keep-all; background-color: inherit; border-radius: 4px; white-space: pre; margin-top: 0; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; overflow-wrap: normal; padding: unset;'><span id="LC1" class="line" lang="plaintext" style="margin-top: 0;">jas@kaka:~$ cat foo</span>
<span id="LC2" class="line" lang="plaintext">MYEXAMPLE { }</span>
<span id="LC3" class="line" lang="plaintext"></span>
<span id="LC4" class="line" lang="plaintext">DEFINITIONS IMPLICIT TAGS ::=</span>
<span id="LC5" class="line" lang="plaintext"></span>
<span id="LC6" class="line" lang="plaintext">BEGIN</span>
<span id="LC7" class="line" lang="plaintext"></span>
<span id="LC8" class="line" lang="plaintext">mySeq ::= SEQUENCE {</span>
<span id="LC9" class="line" lang="plaintext"> myBit BIT STRING</span>
<span id="LC10" class="line" lang="plaintext">}</span>
<span id="LC11" class="line" lang="plaintext"></span>
<span id="LC12" class="line" lang="plaintext">END</span>
<span id="LC13" class="line" lang="plaintext">jas@kaka:~$ cat bar</span>
<span id="LC14" class="line" lang="plaintext">dp MYEXAMPLE.mySeq</span>
<span id="LC15" class="line" lang="plaintext"></span>
<span id="LC16" class="line" lang="plaintext">myBit 01001100</span>
<span id="LC17" class="line" lang="plaintext">jas@kaka:~$ asn1Coding foo bar</span>
<span id="LC18" class="line" lang="plaintext">Parse: done.</span>
<span id="LC19" class="line" lang="plaintext"></span>
<span id="LC20" class="line" lang="plaintext">var=dp, value=MYEXAMPLE.mySeq</span>
<span id="LC21" class="line" lang="plaintext">var=myBit, value=01001100</span>
<span id="LC22" class="line" lang="plaintext"></span>
<span id="LC23" class="line" lang="plaintext">name:NULL type:SEQUENCE</span>
<span id="LC24" class="line" lang="plaintext"> name:myBit type:BIT_STR value(8):30</span>
<span id="LC25" class="line" lang="plaintext"></span>
<span id="LC26" class="line" lang="plaintext">Coding: SUCCESS</span>
<span id="LC27" class="line" lang="plaintext"></span>
<span id="LC28" class="line" lang="plaintext">-----------------</span>
<span id="LC29" class="line" lang="plaintext">Number of bytes=6</span>
<span id="LC30" class="line" lang="plaintext">30 04 03 02 00 30 </span>
<span id="LC31" class="line" lang="plaintext">-----------------</span>
<span id="LC32" class="line" lang="plaintext"></span>
<span id="LC33" class="line" lang="plaintext">OutputFile=bar.out</span>
<span id="LC34" class="line" lang="plaintext"></span>
<span id="LC35" class="line" lang="plaintext">Writing: done.</span>
<span id="LC36" class="line" lang="plaintext">jas@kaka:~$ dumpasn1 bar.out </span>
<span id="LC37" class="line" lang="plaintext"> 0 4: SEQUENCE {</span>
<span id="LC38" class="line" lang="plaintext"> 2 2: BIT STRING</span>
<span id="LC39" class="line" lang="plaintext"> : '00001100'B</span>
<span id="LC40" class="line" lang="plaintext"> : Error: Spurious zero bits in bitstring.</span>
<span id="LC41" class="line" lang="plaintext"> : }</span>
<span id="LC42" class="line" lang="plaintext"></span>
<span id="LC43" class="line" lang="plaintext">0 warnings, 1 error.</span>
<span id="LC44" class="line" lang="plaintext">jas@kaka:~$ </span></code></pre>
<copy-code></copy-code>
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