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Clarify that ed25519.generateDeterministic() can be used outside tests

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Fixes #22946
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Frank Denis 2025-02-19 22:34:52 +01:00 • committed by Alex Rønne Petersen
parent d0e288ab18
commit 541d54a37d
1 changed files with 3 additions and 2 deletions
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5
lib/std/crypto/25519/ed25519.zig
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@ -247,7 +247,7 @@ pub const Ed25519 = struct {
/// Deterministically derive a key pair from a cryptograpically secure secret seed.
///
/// Except in tests, applications should generally call `generate()` instead of this function.
/// To create a new key, applications should generally call `generate()` instead of this function.
///
/// As in RFC 8032, an Ed25519 public key is generated by hashing
/// the secret key using the SHA-512 function, and interpreting the
@ -290,7 +290,8 @@ pub const Ed25519 = struct {
/// Note that with EdDSA, storing the seed, and recovering the key pair
/// from it is recommended over storing the entire secret key.
/// The seed of an exiting key pair can be obtained with
/// `key_pair.secret_key.seed()`.
/// `key_pair.secret_key.seed()`, and the secret key can then be
/// recomputed using `SecretKey.generateDeterministic()`.
pub fn fromSecretKey(secret_key: SecretKey) (NonCanonicalError || EncodingError || IdentityElementError)!KeyPair {
// It is critical for EdDSA to use the correct public key.
// In order to enforce this, a SecretKey implicitly includes a copy of the public key.