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| | Internationalized Domain Names in Applications (IDNA): Registry Restrictions and Recommendations |
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The IDNA specifications for internationalized domain names combine rules that determine the labels that are allowed in the DNS without violating the protocol itself and an assignment of responsibility, consistent with earlier specifications, for determining the labels that are allowed in particular zones. Conformance to IDNA by registries and other implementations requires both parts. Experience strongly suggests that the language describing those responsibilities was insufficiently clear to promote safe and interoperable use of the specifications and that more details and discussion of circumstances would have been helpful. Without making any substantive changes to IDNA, this specification updates two of the core IDNA documents (RFCs 5890 and 5891) and the IDNA explanatory document (RFC 5894) to provide that guidance and to correct some technical errors in the descriptions. |
| | Simple Public Key Infrastructure (SPKI) S-Expressions |
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| | draft-rivest-sexp-13.txt |
| | Date: |
10/01/2025 |
| | Authors: |
Ronald Rivest, Donald Eastlake |
| | Working Group: |
Applications and Real-Time Area (art) |
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This memo specifies the data structure representation that was devised to support Simple Public Key Infrastructure (SPKI, RFC 2692) certificates and with the intent that it be more widely applicable. It has been and is being used elsewhere. There are multiple implementations in a variety of programming languages. Uses of this representation are referred to in this document as "S-expressions". This memo makes precise the encodings of these SPKI S-expressions: it gives a "canonical form" for them, describes two "transport" representations, and also describes an "advanced" format for display to people. |
| | Unicode Character Repertoire Subsets |
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This document discusses specifying subsets of the Unicode character repertoire for use in protocols and data formats. It also specifies those subsets as PRECIS profiles. |