Add method to get keys from seed directly

src/backend/accounts/crypto.ts

@@ -21,9 +21,7 @@ export function verifyValidMnemonic(mnemonic: string) {
   return validateMnemonic(mnemonic, wordlist);
 }
 
-export async function keysFromMnemonic(mnemonic: string): Promise<Keys> {
+export async function keysFromSeed(seed: Uint8Array): Promise<Keys> {
-  const seed = await seedFromMnemonic(mnemonic);
-
   const { privateKey, publicKey } = forge.pki.ed25519.generateKeyPair({
     seed,
   });
@@ -35,6 +33,12 @@ export async function keysFromMnemonic(mnemonic: string): Promise<Keys> {
   };
 }
 
+export async function keysFromMnemonic(mnemonic: string): Promise<Keys> {
+  const seed = await seedFromMnemonic(mnemonic);
+
+  return keysFromSeed(seed);
+}
+
 export function genMnemonic(): string {
   return generateMnemonic(wordlist);
 }