Bodu.Core 0.5.0

Managed implementations of modern and legacy cryptographic primitives for .NET (block ciphers, AEAD modes, hashes/MACs, padding, transforms, the RFC 6962 Merkle tree with inclusion and consistency proofs, and asymmetric algorithms: X25519, Ed25519, and the post-quantum ML-KEM / ML-DSA). NOT independently audited, NOT FIPS-validated, and side-channel resistance is best-effort only — see the package README. Use the platform System.Security.Cryptography types where they cover your needs.

Specialized generic collections for .NET 8: circular buffer, deque, evicting dictionary, sequenced dictionary, indexed and ordered sets, indexed priority queue, multi-value dictionary, multiset, range set and range dictionary, segmented buffer, graphs (adjacency-list graph, traversal and shortest-path algorithms, disjoint set), and trees (n-ary tree, tries). Also ships the approximate sketches in Bodu.Collections.Probabilistic and the packed BitSet in Bodu.Collections.Specialized. Every collection ships a struct enumerator for allocation-free iteration and implements the standard BCL collection interfaces. Thread-safe variants live in Bodu.Collections.Concurrent.

Binary-to-text encodings for .NET 8 — Base16, Base32, Base45, Base58, Base62, Base64, Base85, and Bech32 — with a uniform static API, variant selection, encode-time formatting options, and decode-time leniency styles. Every encoding exposes span, string, UTF-8, and IBufferWriter surfaces with Try* and length-calculation overloads for allocation-free use.

Recurrence-rule evaluation for .NET. Provides RecurrenceRule, an RFC 5545 iCalendar RRULE parser and occurrence enumerator (FREQ DAILY/WEEKLY/MONTHLY/YEARLY with INTERVAL, COUNT, UNTIL, WKST, and the BYMONTH/BYWEEKNO/BYYEARDAY/BYMONTHDAY/BYDAY/BYHOUR/BYMINUTE/BYSECOND/BYSETPOS parts); RecurrenceSet, which composes one or more rules with explicit RDATE additions and EXDATE exclusions; CronExpression, a Vixie-style cron parser (five-field, optional-seconds six-field, and the @yearly/@monthly/@weekly/@daily/@hourly macros); and AnchoredInterval, an instant-anchored interval recurrence ("every 4 hours after the last completed run") in the RFC 5545 duration grammar. Every form answers next- and previous-occurrence queries with inclusive flags over DateTime and DateTimeOffset, parses with defect-naming TryParse overloads, round-trips its canonical text, and compares by value; every answer is a pure function of the arguments — no wall clock, no machine time zone. A natural sibling of the Bodu.Globalization.Calendar notable-date engine; depends only on Bodu.Core.

Shared, format-agnostic serialization primitives for the Bodu System.Text.Json-shaped text serializers (Bencode, TOML, YAML, Delimited, DotEnv, INI): the attribute family, ignore/creation/unmapped-member/naming enums, serialization callback interfaces, and naming policies. Consumed by the per-format serializer packages.