rfc9852v2.txt   rfc9852.txt 
skipping to change at line 100 skipping to change at line 100
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in BCP "OPTIONAL" in this document are to be interpreted as described in BCP
14 [RFC2119] [RFC8174] when, and only when, they appear in all 14 [RFC2119] [RFC8174] when, and only when, they appear in all
capitals, as shown here. capitals, as shown here.
3. Implications for Post-Quantum Cryptography (PQC) 3. Implications for Post-Quantum Cryptography (PQC)
Cryptographically Relevant Quantum Computers (CRQCs), once available, Cryptographically Relevant Quantum Computers (CRQCs), once available,
will have a huge impact on TLS traffic (see, e.g., Section 2 of will have a huge impact on TLS traffic (see, e.g., Section 3 of
[PQC-FOR-ENGINEERS]). To mitigate this, TLS applications will need [PQC-FOR-ENGINEERS]). To mitigate this, TLS applications will need
to migrate to Post-Quantum Cryptography (PQC) [PQC]. Detailed to migrate to Post-Quantum Cryptography (PQC) [PQC]. Detailed
considerations of when an application requires PQC or when a CRQC is considerations of when an application requires PQC or when a CRQC is
a threat that an application needs to protect against are beyond the a threat that an application needs to protect against are beyond the
scope of this document. scope of this document.
It is important to note that the TLS Working Group is focusing its It is important to note that the TLS Working Group is focusing its
efforts on TLS 1.3 or later; TLS 1.2 will not be supported (see efforts on TLS 1.3 or later; TLS 1.2 will not be supported (see
[TLS12FROZEN]). This is one more reason for new protocols to require [TLS12FROZEN]). This is one more reason for new protocols to require
TLS to default to TLS 1.3, where PQC is actively being standardized, TLS to default to TLS 1.3, where PQC is actively being standardized,
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