Update Rust crate ed25519-dalek to v2 (!46) · Merge requests · The Tor Project / Anti-censorship / lox

This MR contains the following updates:

Package	Type	Update	Change
ed25519-dalek	dependencies	major	`1` -> `2`

dalek-cryptography/ed25519-dalek (ed25519-dalek)

Bump MSRV from 1.41 to 1.60.0
Bump Rust edition
Bump signature dependency to 2.0
Make digest an optional dependency
Make zeroize an optional dependency
Make rand_core an optional dependency
curve25519 backends are now automatically selected
curve25519 backends are now overridable via cfg instead of using additive features
Make all batch verification deterministic remove batch_deterministic (MR #256)
Rename Keypair → SigningKey and PublicKey → VerifyingKey
Remove default-public ExpandedSecretKey API (MR #205)
Make hazmat feature to expose ExpandedSecretKey, raw_sign(), raw_sign_prehashed(), raw_verify(), and raw_verify_prehashed()

Add Context type for prehashed signing
Add VerifyingKey::{verify_prehash_strict, is_weak}
Add pkcs feature to support PKCS #8 (de)serialization of SigningKey and VerifyingKey
Add fast feature to include basepoint tables
Add tests for validation criteria
Impl DigestSigner/DigestVerifier for SigningKey/VerifyingKey, respectively
Impl Hash for VerifyingKey
Impl Clone, Drop, and ZeroizeOnDrop for SigningKey
Remove rand dependency
Improve key deserialization diagnostics

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Update Rust crate ed25519-dalek to v2