On Thu, May 20, 2021 at 6:30 AM Salz, Rich <rsalz= 40akamai....@dmarc.ietf.org> wrote:
> Look at RFC 701, it says: the precise set of octet values that identifies > the protocol. This could be the UTF-8 encoding of the protocol name. > > So I changed my mind and think it's okay to leave as-is but wouldn't mind > if it became less general or more specific. For example, what if a protocol > string matches a truncated UTF8 string? It makes me think of SNI which > could have any format, but really is "any format as long as it's a DNS name" > One intermediate option might be to keep the ALPN TLS extension 8-bit clean, but change the IANA instructions for the ALPN registry to tighten the registration requirements.
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