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Add pure annotation to all calls to twistedEdwards

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This PR makes it so that if you only use _one_ export:

```ts
import { ed25519 } from '@noble/curves`;
```

…then only the `twistedEdwards` call that constructs that export will remain after bundling and tree-shaking.

Before this change, the compiled bundle contains all the code that constructs `ed25519ph` and `ed25519ctx` remains.

```js
var ed25519 = twistedEdwards(ed25519Defaults);
function ed25519_domain(data, ctx, phflag) {
  if (ctx.length > 255)
    throw new Error("Context is too big");
  return concatBytes(utf8ToBytes("SigEd25519 no Ed25519 collisions"), new Uint8Array([phflag ? 1 : 0, ctx.length]), ctx, data);
}
twistedEdwards({ ...ed25519Defaults, domain: ed25519_domain });
twistedEdwards({
  ...ed25519Defaults,
  domain: ed25519_domain,
  prehash: sha512
});
```

```js
var ed25519 = twistedEdwards(ed25519Defaults);
```
This commit is contained in:
steveluscher 2023-06-30 17:33:19 +00:00
parent cf17f7fe01
commit 413725cfb3
3 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/ed25519.ts
View File

@ -123,7 +123,7 @@ const ed25519Defaults = {
uvRatio,
} as const;
export const ed25519 = twistedEdwards(ed25519Defaults);
export const ed25519 = /* @__PURE__ */ twistedEdwards(ed25519Defaults);
function ed25519_domain(data: Uint8Array, ctx: Uint8Array, phflag: boolean) {
if (ctx.length > 255) throw new Error('Context is too big');
@ -135,8 +135,11 @@ function ed25519_domain(data: Uint8Array, ctx: Uint8Array, phflag: boolean) {
);
}
export const ed25519ctx = twistedEdwards({ ...ed25519Defaults, domain: ed25519_domain });
export const ed25519ph = twistedEdwards({
export const ed25519ctx = /* @__PURE__ */ twistedEdwards({
...ed25519Defaults,
domain: ed25519_domain,
});
export const ed25519ph = /* @__PURE__ */ twistedEdwards({
...ed25519Defaults,
domain: ed25519_domain,
prehash: sha512,

4
src/ed448.ts
View File

@ -130,9 +130,9 @@ const ED448_DEF = {
uvRatio,
} as const;
export const ed448 = twistedEdwards(ED448_DEF);
export const ed448 = /* @__PURE__ */ twistedEdwards(ED448_DEF);
// NOTE: there is no ed448ctx, since ed448 supports ctx by default
export const ed448ph = twistedEdwards({ ...ED448_DEF, prehash: shake256_64 });
export const ed448ph = /* @__PURE__ */ twistedEdwards({ ...ED448_DEF, prehash: shake256_64 });
export const x448 = /* @__PURE__ */ (() =>
montgomery({

2
src/jubjub.ts
View File

@ -11,7 +11,7 @@ import { Field } from './abstract/modular.js';
* jubjub does not use EdDSA, so `hash`/sha512 params are passed because interface expects them.
*/
export const jubjub = twistedEdwards({
export const jubjub = /* @__PURE__ */ twistedEdwards({
// Params: a, d
a: BigInt('0x73eda753299d7d483339d80809a1d80553bda402fffe5bfeffffffff00000000'),
d: BigInt('0x2a9318e74bfa2b48f5fd9207e6bd7fd4292d7f6d37579d2601065fd6d6343eb1'),