Add JsonWebKeyExtended interface for AKP.

packages/common/mod.ts

@@ -2,6 +2,7 @@ export type { AeadEncryptionContext } from "./src/interfaces/aeadEncryptionConte
 export type { AeadInterface } from "./src/interfaces/aeadInterface.ts";
 export type { DhkemPrimitives } from "./src/interfaces/dhkemPrimitives.ts";
 export type { DhkemInterface } from "./src/interfaces/dhkemInterface.ts";
+export type { JsonWebKeyExtended } from "./src/interfaces/jsonWebKeyExtended.ts";
 export type { KdfInterface } from "./src/interfaces/kdfInterface.ts";
 export type { KemInterface } from "./src/interfaces/kemInterface.ts";
 export type { KeyScheduleParams } from "./src/interfaces/keyScheduleParams.ts";

packages/common/src/interfaces/jsonWebKeyExtended.ts

@@ -0,0 +1,12 @@
+/**
+ * Extended JsonWebKey interface to support `pub` and `priv` properties,
+ * which are not supported by the current `JsonWebKey`.
+ * Both of them are defined for the newly defined JSON WWb Key type AKP (Algorithm Key Pair),
+ * which is used to express Public and Private Keys for use with Algorithms.
+ */
+export interface JsonWebKeyExtended extends JsonWebKey {
+    /** The public key in base64url encoding, which is used with the 'AKP' key type. */
+    pub?: string;
+    /** The private key in base64url encoding, which is used with the 'AKP' key type. */
+    priv?: string;
+}