[gnutls-devel] GnuTLS | x509: support encoding of ML-DSA private keys in CHOICE format (!1973)
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Fri Jul 4 06:37:57 CEST 2025
Daiki Ueno commented on a discussion on lib/x509/privkey_pkcs8.c: https://gitlab.com/gnutls/gnutls/-/merge_requests/1973#note_2602678535
> return ret;
> }
>
> +static int decode_ml_dsa_inner_private_key(const gnutls_datum_t *raw_key,
> + size_t raw_pub_size,
> + size_t raw_priv_size,
> + gnutls_x509_privkey_t pkey)
> +{
> + int ret;
> + asn1_node inner_asn = NULL;
> +
> + /* libtasn1 doesn't support encoding instructions in CHOICE,
> + * parse it manually */
> + if (raw_key->size == 34 && raw_key->data[0] == 0x80 &&
> + raw_key->data[1] == 0x20) {
I'm afraid that would make the control flow complicated as the other alternatives in the CHOICE is handled in the `else` branch. I'd leave it as is.
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