feat: add asn schemas for ED

src/asn1/ed_private_key.ts

@@ -0,0 +1,26 @@
+import { AsnIntegerConverter, AsnProp, AsnPropTypes, AsnSerializer, AsnType, AsnTypeTypes } from "@peculiar/asn1-schema";
+import { IJsonConvertible } from "@peculiar/json-schema";
+import { Convert } from "pvtsutils";
+
+@AsnType({ type: AsnTypeTypes.Choice })
+export class EdPrivateKey implements IJsonConvertible {
+
+  @AsnProp({ type: AsnPropTypes.OctetString })
+  public value = new ArrayBuffer(0);
+
+  public fromJSON(json: any): this {
+    if (!json.d) {
+      throw new Error("d: Missing required property");
+    }
+    this.value = Convert.FromBase64Url(json.d);
+
+    return this;
+  }
+  public toJSON() {
+    const jwk: JsonWebKey = {
+      d: Convert.ToBase64Url(this.value),
+    };
+
+    return jwk;
+  }
+}

src/asn1/ed_public_key.ts

@@ -0,0 +1,41 @@
+import { AsnProp, AsnPropTypes, AsnType, AsnTypeTypes } from "@peculiar/asn1-schema";
+import { IJsonConvertible } from "@peculiar/json-schema";
+import { Convert } from "pvtsutils";
+import { CryptoError } from "../errors";
+
+// RFC 8410
+// https://datatracker.ietf.org/doc/html/rfc8410
+//
+// PublicKey ::= BIT STRING
+
+@AsnType({ type: AsnTypeTypes.Choice })
+export class EdPublicKey implements IJsonConvertible {
+
+  @AsnProp({ type: AsnPropTypes.BitString })
+  public value = new ArrayBuffer(0);
+
+  constructor(value?: ArrayBuffer) {
+    if (value) {
+      this.value = value;
+    }
+  }
+
+  public toJSON() {
+    const json = {
+      x: Convert.ToBase64Url(this.value),
+    };
+
+    return json;
+  }
+
+  public fromJSON(json: any): this {
+    if (!("x" in json)) {
+      throw new Error("x: Missing required property");
+    }
+
+    this.value = Convert.FromBase64Url(json.x);
+
+    return this;
+  }
+
+}

src/asn1/index.ts

@@ -7,5 +7,8 @@ export * from "./rsa_public_key";
 export * from "./ec_private_key";
 export * from "./ec_public_key";
 export * from "./ec_signature";
+export * from "./one_asymmetric_key";
+export * from "./ed_private_key";
+export * from "./ed_public_key";
 export * from "./rfc8410";
 export * as converters from "./converters";

src/asn1/one_asymmetric_key.ts

@@ -0,0 +1,26 @@
+import { AsnProp, AsnPropTypes } from "@peculiar/asn1-schema";
+import { PrivateKeyInfo } from "./private_key_info";
+
+/**
+ * ```asn
+ * OneAsymmetricKey ::= SEQUENCE {
+ *   version Version,
+ *   privateKeyAlgorithm PrivateKeyAlgorithmIdentifier,
+ *   privateKey PrivateKey,
+ *   attributes [0] IMPLICIT Attributes OPTIONAL,
+ *   ...,
+ *   [[2: publicKey [1] IMPLICIT PublicKey OPTIONAL ]],
+ *   ...
+ * }
+ *
+ * PrivateKey ::= OCTET STRING
+ *
+ * PublicKey ::= BIT STRING
+ * ```
+ */
+export class OneAsymmetricKey extends PrivateKeyInfo {
+
+  @AsnProp({ context: 1, implicit: true, type: AsnPropTypes.BitString, optional: true })
+  public publicKey?: ArrayBuffer;
+
+}