feat: Verify leaf signature (#2208)

* Update WA_CERT_DETAILS with issuer and public key

* certificate validation

* fix:lint

* padding

* lint: fix tab

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Co-authored-by: skidy89 <tutorialesyg310@gmail.com>

src/Defaults/index.ts

@@ -29,9 +29,10 @@ export const NOISE_WA_HEADER = Buffer.from([87, 65, 6, DICT_VERSION]) // last is
 /** from: https://stackoverflow.com/questions/3809401/what-is-a-good-regular-expression-to-match-a-url */
 export const URL_REGEX = /https:\/\/(?![^:@\/\s]+:[^:@\/\s]+@)[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}(:\d+)?(\/[^\s]*)?/g
 
-// TODO: Add WA root CA
 export const WA_CERT_DETAILS = {
-	SERIAL: 0
+	SERIAL: 0,
+	ISSUER: 'WhatsAppLongTerm1',
+	PUBLIC_KEY: Buffer.from('142375574d0a587166aae71ebe516437c4a28b73e3695c6ce1f7f9545da8ee6b', 'hex')
 }
 
 export const PROCESSABLE_HISTORY_TYPES = [