diff --git a/packages/core/src/des/base.ts b/packages/core/src/des/base.ts
index 17b3e78..9e0a5cb 100644
--- a/packages/core/src/des/base.ts
+++ b/packages/core/src/des/base.ts
@@ -2,25 +2,6 @@ import * as types from "@peculiar/webcrypto-types";
 import { OperationError } from "../errors";
 import { CryptoKey } from "../crypto_key";
 import { ProviderCrypto } from "../provider";
-import { BufferSource } from "pvtsutils";
-
-export interface DesKeyAlgorithm extends types.KeyAlgorithm {
-  length: number;
-}
-
-export interface DesParams extends types.Algorithm {
-  iv: BufferSource;
-}
-
-export interface DesKeyGenParams extends types.Algorithm {
-  length: number;
-}
-
-export interface DesDerivedKeyParams extends types.Algorithm {
-  length: number;
-}
-
-export interface DesImportParams extends types.Algorithm { }
 
 export abstract class DesProvider extends ProviderCrypto {
 
@@ -41,7 +22,7 @@ export abstract class DesProvider extends ProviderCrypto {
     }
   }
 
-  public override checkGenerateKeyParams(algorithm: DesKeyGenParams) {
+  public override checkGenerateKeyParams(algorithm: types.DesKeyGenParams) {
     // length
     this.checkRequiredProperty(algorithm, "length");
     if (typeof algorithm.length !== "number") {
@@ -52,14 +33,14 @@ export abstract class DesProvider extends ProviderCrypto {
     }
   }
 
-  public override checkDerivedKeyParams(algorithm: DesDerivedKeyParams) {
+  public override checkDerivedKeyParams(algorithm: types.DesDerivedKeyParams) {
     this.checkGenerateKeyParams(algorithm);
   }
 
-  public abstract override onGenerateKey(algorithm: DesKeyGenParams, extractable: boolean, keyUsages: types.KeyUsage[], ...args: any[]): Promise<CryptoKey>;
+  public abstract override onGenerateKey(algorithm: types.DesKeyGenParams, extractable: boolean, keyUsages: types.KeyUsage[], ...args: any[]): Promise<CryptoKey>;
   public abstract override onExportKey(format: types.KeyFormat, key: CryptoKey, ...args: any[]): Promise<types.JsonWebKey | ArrayBuffer>;
-  public abstract override onImportKey(format: types.KeyFormat, keyData: types.JsonWebKey | ArrayBuffer, algorithm: DesImportParams, extractable: boolean, keyUsages: types.KeyUsage[], ...args: any[]): Promise<CryptoKey>;
-  public abstract override onEncrypt(algorithm: DesParams, key: CryptoKey, data: ArrayBuffer, ...args: any[]): Promise<ArrayBuffer>;
-  public abstract override onDecrypt(algorithm: DesParams, key: CryptoKey, data: ArrayBuffer, ...args: any[]): Promise<ArrayBuffer>;
+  public abstract override onImportKey(format: types.KeyFormat, keyData: types.JsonWebKey | ArrayBuffer, algorithm: types.DesImportParams, extractable: boolean, keyUsages: types.KeyUsage[], ...args: any[]): Promise<CryptoKey>;
+  public abstract override onEncrypt(algorithm: types.DesParams, key: CryptoKey, data: ArrayBuffer, ...args: any[]): Promise<ArrayBuffer>;
+  public abstract override onDecrypt(algorithm: types.DesParams, key: CryptoKey, data: ArrayBuffer, ...args: any[]): Promise<ArrayBuffer>;
 
 }
diff --git a/packages/core/src/errors/required_property.ts b/packages/core/src/errors/required_property.ts
index 04fe3c3..eec2405 100644
--- a/packages/core/src/errors/required_property.ts
+++ b/packages/core/src/errors/required_property.ts
@@ -1,7 +1,7 @@
 import { CryptoError } from "./crypto";
 
 export class RequiredPropertyError extends CryptoError {
-  constructor(propName: string) {
-    super(`${propName}: Missing required property`);
+  constructor(propName: string, target?: string) {
+    super(`${propName}: Missing required property${target ? ` in ${target}` : ""}`);
   }
 }
diff --git a/packages/core/src/provider.ts b/packages/core/src/provider.ts
index 5140f98..c930c68 100644
--- a/packages/core/src/provider.ts
+++ b/packages/core/src/provider.ts
@@ -1,7 +1,7 @@
 import * as types from "@peculiar/webcrypto-types";
 import { BufferSourceConverter } from "pvtsutils";
 import { AlgorithmError, CryptoError, OperationError, RequiredPropertyError, UnsupportedOperationError } from "./errors";
-import { isJWK } from "./utils";
+import { assertJWK } from "./utils";
 
 export interface IProviderCheckOptions {
   keyUsage?: boolean;
@@ -256,9 +256,7 @@ export abstract class ProviderCrypto {
       throw new TypeError("keyData: Cannot be empty on empty on key importing");
     }
     if (format === "jwk") {
-      if (!isJWK(keyData)) {
-        throw new TypeError("keyData: Is not JsonWebToken");
-      }
+      assertJWK(keyData, "keyData");
     } else if (!BufferSourceConverter.isBufferSource(keyData)) {
       throw new TypeError("keyData: Is not ArrayBufferView or ArrayBuffer");
     }
diff --git a/packages/core/src/shake/base.ts b/packages/core/src/shake/base.ts
index 8eaf449..bf1ae6b 100644
--- a/packages/core/src/shake/base.ts
+++ b/packages/core/src/shake/base.ts
@@ -1,26 +1,19 @@
 import { ProviderCrypto } from "../provider";
 import * as types from "@peculiar/webcrypto-types";
 
-export interface ShakeParams extends types.Algorithm {
-  /**
-   * Output length in bytes
-   */
-  length?: number;
-}
-
 export abstract class ShakeProvider extends ProviderCrypto {
 
   public usages = [];
   public defaultLength = 0;
 
-  public override digest(algorithm: types.Algorithm, data: ArrayBuffer, ...args: any[]): Promise<ArrayBuffer>;
+  public override digest(algorithm: types.ShakeParams, data: ArrayBuffer, ...args: any[]): Promise<ArrayBuffer>;
   public override digest(...args: any[]): Promise<ArrayBuffer> {
     args[0] = { length: this.defaultLength, ...args[0] };
 
     return super.digest.apply(this, args as unknown as any);
   }
 
-  public override checkDigest(algorithm: ShakeParams, data: ArrayBuffer): void {
+  public override checkDigest(algorithm: types.ShakeParams, data: ArrayBuffer): void {
     super.checkDigest(algorithm, data);
 
     const length = algorithm.length || 0;
@@ -32,6 +25,6 @@ export abstract class ShakeProvider extends ProviderCrypto {
     }
   }
 
-  public abstract override onDigest(algorithm: Required<ShakeParams>, data: ArrayBuffer): Promise<ArrayBuffer>;
+  public abstract override onDigest(algorithm: Required<types.ShakeParams>, data: ArrayBuffer): Promise<ArrayBuffer>;
 
 }
diff --git a/packages/core/src/subtle.ts b/packages/core/src/subtle.ts
index b558597..d0c49f1 100644
--- a/packages/core/src/subtle.ts
+++ b/packages/core/src/subtle.ts
@@ -23,7 +23,7 @@ export class SubtleCrypto implements types.SubtleCrypto {
     return "SubtleCrypto";
   }
 
-  public async digest(algorithm: types.AlgorithmIdentifier, data: BufferSource, ...args: any[]): Promise<ArrayBuffer>;
+  public async digest(algorithm: types.AlgorithmIdentifier | types.ShakeParams, data: BufferSource, ...args: any[]): Promise<ArrayBuffer>;
   public async digest(...args: any[]): Promise<ArrayBuffer> {
     this.checkRequiredArguments(args, 2, "digest");
     const [algorithm, data, ...params] = args;
@@ -52,7 +52,7 @@ export class SubtleCrypto implements types.SubtleCrypto {
     return result;
   }
 
-  public async sign(algorithm: types.AlgorithmIdentifier, key: types.CryptoKey, data: BufferSource, ...args: any[]): Promise<ArrayBuffer>;
+  public async sign(algorithm: types.SignAlgorithms, key: types.CryptoKey, data: BufferSource, ...args: any[]): Promise<ArrayBuffer>;
   public async sign(...args: any[]): Promise<ArrayBuffer> {
     this.checkRequiredArguments(args, 3, "sign");
     const [algorithm, key, data, ...params] = args;
@@ -67,7 +67,7 @@ export class SubtleCrypto implements types.SubtleCrypto {
     return result;
   }
 
-  public async verify(algorithm: types.AlgorithmIdentifier, key: types.CryptoKey, signature: BufferSource, data: BufferSource, ...args: any[]): Promise<boolean>;
+  public async verify(algorithm: types.SignAlgorithms, key: types.CryptoKey, signature: BufferSource, data: BufferSource, ...args: any[]): Promise<boolean>;
   public async verify(...args: any[]): Promise<boolean> {
     this.checkRequiredArguments(args, 4, "verify");
     const [algorithm, key, signature, data, ...params] = args;
diff --git a/packages/core/src/utils/is_jwk.ts b/packages/core/src/utils/is_jwk.ts
index 7d68a82..10c4306 100644
--- a/packages/core/src/utils/is_jwk.ts
+++ b/packages/core/src/utils/is_jwk.ts
@@ -1,5 +1,11 @@
 import * as types from "@peculiar/webcrypto-types";
 
-export function isJWK(data: any): data is types.JsonWebKey {
-  return typeof data === "object" && "kty" in data;
+export function isJWK(data: unknown): data is types.JsonWebKey {
+  return !!(data && typeof data === "object" && "kty" in data);
+}
+
+export function assertJWK(data: unknown, paramName: string): asserts data is types.JsonWebKey {
+  if (!isJWK(data)) {
+    throw new TypeError(`${paramName}: is not JsonWebKey`);
+  }
 }
diff --git a/packages/core/test/des.spec.ts b/packages/core/test/des.spec.ts
index 9695b18..6b7cedb 100644
--- a/packages/core/test/des.spec.ts
+++ b/packages/core/test/des.spec.ts
@@ -7,19 +7,19 @@ class DesTestProvider extends core.DesProvider {
   public ivSize = 8;
   public name = "DES-TEST";
 
-  public onGenerateKey(algorithm: import("../src/des").DesKeyGenParams, extractable: boolean, keyUsages: types.KeyUsage[]): Promise<core.CryptoKey> {
+  public onGenerateKey(algorithm: types.DesKeyGenParams, extractable: boolean, keyUsages: types.KeyUsage[]): Promise<core.CryptoKey> {
     throw new Error("Method not implemented.");
   }
   public onExportKey(format: types.KeyFormat, key: core.CryptoKey): Promise<types.JsonWebKey | ArrayBuffer> {
     throw new Error("Method not implemented.");
   }
-  public onImportKey(format: types.KeyFormat, keyData: types.JsonWebKey | ArrayBuffer, algorithm: import("../src/des").DesImportParams, extractable: boolean, keyUsages: types.KeyUsage[]): Promise<core.CryptoKey> {
+  public onImportKey(format: types.KeyFormat, keyData: types.JsonWebKey | ArrayBuffer, algorithm: types.DesImportParams, extractable: boolean, keyUsages: types.KeyUsage[]): Promise<core.CryptoKey> {
     throw new Error("Method not implemented.");
   }
-  public onEncrypt(algorithm: import("../src/des").DesParams, key: core.CryptoKey, data: ArrayBuffer): Promise<ArrayBuffer> {
+  public onEncrypt(algorithm: types.DesParams, key: core.CryptoKey, data: ArrayBuffer): Promise<ArrayBuffer> {
     throw new Error("Method not implemented.");
   }
-  public onDecrypt(algorithm: import("../src/des").DesParams, key: core.CryptoKey, data: ArrayBuffer): Promise<ArrayBuffer> {
+  public onDecrypt(algorithm: types.DesParams, key: core.CryptoKey, data: ArrayBuffer): Promise<ArrayBuffer> {
     throw new Error("Method not implemented.");
   }
 }
diff --git a/packages/core/test/shake.spec.ts b/packages/core/test/shake.spec.ts
index 032653b..cd5e34d 100644
--- a/packages/core/test/shake.spec.ts
+++ b/packages/core/test/shake.spec.ts
@@ -3,13 +3,13 @@ import * as core from "@peculiar/webcrypto-core";
 import * as types from "@peculiar/webcrypto-types";
 
 class TestShake128Provider extends core.Shake128Provider {
-  public async onDigest(algorithm: Required<core.ShakeParams>, data: ArrayBuffer): Promise<ArrayBuffer> {
+  public async onDigest(algorithm: Required<types.ShakeParams>, data: ArrayBuffer): Promise<ArrayBuffer> {
     return new ArrayBuffer(algorithm.length);
   }
 }
 
 class TestShake256Provider extends core.Shake256Provider {
-  public async onDigest(algorithm: Required<core.ShakeParams>, data: ArrayBuffer): Promise<ArrayBuffer> {
+  public async onDigest(algorithm: Required<types.ShakeParams>, data: ArrayBuffer): Promise<ArrayBuffer> {
     return new ArrayBuffer(algorithm.length);
   }
 }
diff --git a/packages/node/src/mechs/des/crypto.ts b/packages/node/src/mechs/des/crypto.ts
index 22a71b9..cfe7846 100644
--- a/packages/node/src/mechs/des/crypto.ts
+++ b/packages/node/src/mechs/des/crypto.ts
@@ -50,7 +50,7 @@ export class DesCrypto {
     return key;
   }
 
-  public static async encrypt(algorithm: core.DesParams, key: DesCryptoKey, data: Uint8Array): Promise<ArrayBuffer> {
+  public static async encrypt(algorithm: types.DesParams, key: DesCryptoKey, data: Uint8Array): Promise<ArrayBuffer> {
     switch (algorithm.name.toUpperCase()) {
       case "DES-CBC":
         return this.encryptDesCBC(algorithm, key, Buffer.from(data));
@@ -61,7 +61,7 @@ export class DesCrypto {
     }
   }
 
-  public static async decrypt(algorithm: core.DesParams, key: CryptoKey, data: Uint8Array): Promise<ArrayBuffer> {
+  public static async decrypt(algorithm: types.DesParams, key: CryptoKey, data: Uint8Array): Promise<ArrayBuffer> {
     if (!(key instanceof DesCryptoKey)) {
       throw new Error("key: Is not DesCryptoKey");
     }
@@ -76,7 +76,7 @@ export class DesCrypto {
     }
   }
 
-  public static async encryptDesCBC(algorithm: core.DesParams, key: DesCryptoKey, data: Buffer) {
+  public static async encryptDesCBC(algorithm: types.DesParams, key: DesCryptoKey, data: Buffer) {
     const cipher = crypto.createCipheriv(`des-cbc`, key.data, new Uint8Array(algorithm.iv as ArrayBuffer));
     let enc = cipher.update(data);
     enc = Buffer.concat([enc, cipher.final()]);
@@ -84,14 +84,14 @@ export class DesCrypto {
     return res;
   }
 
-  public static async decryptDesCBC(algorithm: core.DesParams, key: DesCryptoKey, data: Buffer) {
+  public static async decryptDesCBC(algorithm: types.DesParams, key: DesCryptoKey, data: Buffer) {
     const decipher = crypto.createDecipheriv(`des-cbc`, key.data, new Uint8Array(algorithm.iv as ArrayBuffer));
     let dec = decipher.update(data);
     dec = Buffer.concat([dec, decipher.final()]);
     return new Uint8Array(dec).buffer;
   }
 
-  public static async encryptDesEDE3CBC(algorithm: core.DesParams, key: DesCryptoKey, data: Buffer) {
+  public static async encryptDesEDE3CBC(algorithm: types.DesParams, key: DesCryptoKey, data: Buffer) {
     const cipher = crypto.createCipheriv(`des-ede3-cbc`, key.data, Buffer.from(algorithm.iv as ArrayBuffer));
     let enc = cipher.update(data);
     enc = Buffer.concat([enc, cipher.final()]);
@@ -99,7 +99,7 @@ export class DesCrypto {
     return res;
   }
 
-  public static async decryptDesEDE3CBC(algorithm: core.DesParams, key: DesCryptoKey, data: Buffer) {
+  public static async decryptDesEDE3CBC(algorithm: types.DesParams, key: DesCryptoKey, data: Buffer) {
     const decipher = crypto.createDecipheriv(`des-ede3-cbc`, key.data, new Uint8Array(algorithm.iv as ArrayBuffer));
     let dec = decipher.update(data);
     dec = Buffer.concat([dec, decipher.final()]);
diff --git a/packages/node/src/mechs/des/des_cbc.ts b/packages/node/src/mechs/des/des_cbc.ts
index c8b300d..95602de 100644
--- a/packages/node/src/mechs/des/des_cbc.ts
+++ b/packages/node/src/mechs/des/des_cbc.ts
@@ -5,7 +5,7 @@ import { setCryptoKey, getCryptoKey } from "../storage";
 import { DesCrypto } from "./crypto";
 import { DesCryptoKey } from "./key";
 
-export type DesCbcParams = core.DesParams;
+export type DesCbcParams = types.DesParams;
 
 export class DesCbcProvider extends core.DesProvider {
 
@@ -13,7 +13,7 @@ export class DesCbcProvider extends core.DesProvider {
   public ivSize = 8;
   public name = "DES-CBC";
 
-  public async onGenerateKey(algorithm: core.DesKeyGenParams, extractable: boolean, keyUsages: types.KeyUsage[]): Promise<core.CryptoKey> {
+  public async onGenerateKey(algorithm: types.DesKeyGenParams, extractable: boolean, keyUsages: types.KeyUsage[]): Promise<core.CryptoKey> {
     const key = await DesCrypto.generateKey(
       {
         name: this.name,
diff --git a/packages/node/src/mechs/des/des_ede3_cbc.ts b/packages/node/src/mechs/des/des_ede3_cbc.ts
index 72da173..004388f 100644
--- a/packages/node/src/mechs/des/des_ede3_cbc.ts
+++ b/packages/node/src/mechs/des/des_ede3_cbc.ts
@@ -5,7 +5,7 @@ import { setCryptoKey, getCryptoKey } from "../storage";
 import { DesCrypto } from "./crypto";
 import { DesCryptoKey } from "./key";
 
-export type DesEde3CbcParams = core.DesParams;
+export type DesEde3CbcParams = types.DesParams;
 
 export class DesEde3CbcProvider extends core.DesProvider {
 
@@ -13,7 +13,7 @@ export class DesEde3CbcProvider extends core.DesProvider {
   public ivSize = 8;
   public name = "DES-EDE3-CBC";
 
-  public async onGenerateKey(algorithm: core.DesKeyGenParams, extractable: boolean, keyUsages: types.KeyUsage[]): Promise<core.CryptoKey> {
+  public async onGenerateKey(algorithm: types.DesKeyGenParams, extractable: boolean, keyUsages: types.KeyUsage[]): Promise<core.CryptoKey> {
     const key = await DesCrypto.generateKey(
       {
         name: this.name,
diff --git a/packages/node/src/mechs/des/key.ts b/packages/node/src/mechs/des/key.ts
index e68b3d9..d8070d0 100644
--- a/packages/node/src/mechs/des/key.ts
+++ b/packages/node/src/mechs/des/key.ts
@@ -1,13 +1,14 @@
-import { JsonProp } from "@peculiar/json-schema";
+import * as jsonSchema from "@peculiar/json-schema";
 import * as core from "@peculiar/webcrypto-core";
+import * as types from "@peculiar/webcrypto-types";
 import { JsonBase64UrlConverter } from "../../converters";
 import { SymmetricKey } from "../../keys";
 
 export class DesCryptoKey extends SymmetricKey {
 
-  public override algorithm!: core.DesKeyAlgorithm;
+  public override algorithm!: types.DesKeyAlgorithm;
 
-  @JsonProp({ name: "k", converter: JsonBase64UrlConverter })
+  @jsonSchema.JsonProp({ name: "k", converter: JsonBase64UrlConverter })
   public override data!: Buffer;
 
   // eslint-disable-next-line @typescript-eslint/ban-ts-comment
diff --git a/packages/node/src/mechs/shake/crypto.ts b/packages/node/src/mechs/shake/crypto.ts
index 96ad8fd..f4a783a 100644
--- a/packages/node/src/mechs/shake/crypto.ts
+++ b/packages/node/src/mechs/shake/crypto.ts
@@ -1,9 +1,9 @@
 import * as crypto from "crypto";
-import * as core from "@peculiar/webcrypto-core";
+import * as types from "@peculiar/webcrypto-types";
 
 export class ShakeCrypto {
 
-  public static digest(algorithm: Required<core.ShakeParams>, data: ArrayBuffer) {
+  public static digest(algorithm: Required<types.ShakeParams>, data: ArrayBuffer) {
     const hash = crypto.createHash(algorithm.name.toLowerCase(), { outputLength: algorithm.length })
       .update(Buffer.from(data)).digest();
 
diff --git a/packages/node/src/mechs/shake/shake128.ts b/packages/node/src/mechs/shake/shake128.ts
index 1972be9..5342aee 100644
--- a/packages/node/src/mechs/shake/shake128.ts
+++ b/packages/node/src/mechs/shake/shake128.ts
@@ -1,9 +1,10 @@
 import * as core from "@peculiar/webcrypto-core";
+import * as types from "@peculiar/webcrypto-types";
 import { ShakeCrypto } from "./crypto";
 
 export class Shake128Provider extends core.Shake128Provider {
 
-  public override async onDigest(algorithm: Required<core.ShakeParams>, data: ArrayBuffer): Promise<ArrayBuffer> {
+  public override async onDigest(algorithm: Required<types.ShakeParams>, data: ArrayBuffer): Promise<ArrayBuffer> {
     return ShakeCrypto.digest(algorithm, data);
   }
 
diff --git a/packages/node/src/mechs/shake/shake256.ts b/packages/node/src/mechs/shake/shake256.ts
index fa4561d..c488af5 100644
--- a/packages/node/src/mechs/shake/shake256.ts
+++ b/packages/node/src/mechs/shake/shake256.ts
@@ -1,9 +1,10 @@
 import * as core from "@peculiar/webcrypto-core";
+import * as types from "@peculiar/webcrypto-types";
 import { ShakeCrypto } from "./crypto";
 
 export class Shake256Provider extends core.Shake256Provider {
 
-  public override async onDigest(algorithm: Required<core.ShakeParams>, data: ArrayBuffer): Promise<ArrayBuffer> {
+  public override async onDigest(algorithm: Required<types.ShakeParams>, data: ArrayBuffer): Promise<ArrayBuffer> {
     return ShakeCrypto.digest(algorithm, data);
   }
 
diff --git a/packages/node/test/crypto.ts b/packages/node/test/crypto.spec.ts
similarity index 99%
rename from packages/node/test/crypto.ts
rename to packages/node/test/crypto.spec.ts
index c024708..1708d43 100644
--- a/packages/node/test/crypto.ts
+++ b/packages/node/test/crypto.spec.ts
@@ -239,7 +239,7 @@ context("Crypto", () => {
       });
 
       it("128 byte length", async () => {
-        const hash = await crypto.subtle.digest({ name: "shake128", length: 128 } as core.ShakeParams, data);
+        const hash = await crypto.subtle.digest({ name: "shake128", length: 128 } as types.ShakeParams, data);
 
         assert.strictEqual(Buffer.from(hash).toString("hex"), "ae3bdcf04986a8e7ddd99ac948254693fc32ca6ce3ed278c0c54127f072ba21e977d76aa76cab8f85f61c3e1fb7dab42c6b96d39f96fbd8cdcba7121e28cc97bb51f277a00398f99a9e6f11d027473cbffb3ac4ce444e2e8284caeca4e62f725d340fa3519eec7ca3eb4188607c26b0ecdf3750beba8882d6f2b734960cca914");
       });
@@ -255,7 +255,7 @@ context("Crypto", () => {
       });
 
       it("256 byte length", async () => {
-        const hash = await crypto.subtle.digest({ name: "shake256", length: 256 } as core.ShakeParams, data);
+        const hash = await crypto.subtle.digest({ name: "shake256", length: 256 } as types.ShakeParams, data);
 
         assert.strictEqual(Buffer.from(hash).toString("hex"), "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");
       });
diff --git a/packages/pkcs11/test/aes.ts b/packages/pkcs11/test/aes.spec.ts
similarity index 100%
rename from packages/pkcs11/test/aes.ts
rename to packages/pkcs11/test/aes.spec.ts
diff --git a/packages/pkcs11/test/cert_storage.ts b/packages/pkcs11/test/cert_storage.spec.ts
similarity index 100%
rename from packages/pkcs11/test/cert_storage.ts
rename to packages/pkcs11/test/cert_storage.spec.ts
diff --git a/packages/pkcs11/test/crypto.ts b/packages/pkcs11/test/crypto.spec.ts
similarity index 100%
rename from packages/pkcs11/test/crypto.ts
rename to packages/pkcs11/test/crypto.spec.ts
diff --git a/packages/pkcs11/test/ec.ts b/packages/pkcs11/test/ec.spec.ts
similarity index 100%
rename from packages/pkcs11/test/ec.ts
rename to packages/pkcs11/test/ec.spec.ts
diff --git a/packages/pkcs11/test/hmac.ts b/packages/pkcs11/test/hmac.spec.ts
similarity index 100%
rename from packages/pkcs11/test/hmac.ts
rename to packages/pkcs11/test/hmac.spec.ts
diff --git a/packages/pkcs11/test/key_storage.ts b/packages/pkcs11/test/key_storage.spec.ts
similarity index 100%
rename from packages/pkcs11/test/key_storage.ts
rename to packages/pkcs11/test/key_storage.spec.ts
diff --git a/packages/pkcs11/test/rsa.ts b/packages/pkcs11/test/rsa.spec.ts
similarity index 100%
rename from packages/pkcs11/test/rsa.ts
rename to packages/pkcs11/test/rsa.spec.ts
diff --git a/packages/pkcs11/test/subtle.ts b/packages/pkcs11/test/subtle.spec.ts
similarity index 100%
rename from packages/pkcs11/test/subtle.ts
rename to packages/pkcs11/test/subtle.spec.ts
diff --git a/packages/pkcs11/test/vectors.ts b/packages/pkcs11/test/vectors.spec.ts
similarity index 100%
rename from packages/pkcs11/test/vectors.ts
rename to packages/pkcs11/test/vectors.spec.ts
diff --git a/packages/types/src/index.ts b/packages/types/src/index.ts
index 1bb42ef..ce615d9 100644
--- a/packages/types/src/index.ts
+++ b/packages/types/src/index.ts
@@ -195,6 +195,9 @@ export interface CryptoKey {
   readonly usages: KeyUsage[];
 }
 
+export type DigestAlgorithms = AlgorithmIdentifier | ShakeParams;
+export type SignAlgorithms = AlgorithmIdentifier | RsaPssParams | EcdsaParams;
+
 /**
  * This Web Crypto API export interface provides a number of low-level cryptographic functions.
  * It is accessed via the Crypto.subtle properties available in a window context (via Window.crypto).
@@ -205,7 +208,7 @@ export interface SubtleCrypto {
   decrypt(algorithm: AlgorithmIdentifier | RsaOaepParams | AesCtrParams | AesCbcParams | AesGcmParams, key: CryptoKey, data: BufferSource): Promise<any>;
   deriveBits(algorithm: AlgorithmIdentifier | EcdhKeyDeriveParams | HkdfParams | Pbkdf2Params, baseKey: CryptoKey, length: number): Promise<ArrayBuffer>;
   deriveKey(algorithm: AlgorithmIdentifier | EcdhKeyDeriveParams | HkdfParams | Pbkdf2Params, baseKey: CryptoKey, derivedKey: AlgorithmIdentifier | AesDerivedKeyParams | HmacImportParams | HkdfParams | Pbkdf2Params, extractable: boolean, keyUsages: KeyUsage[]): Promise<CryptoKey>;
-  digest(algorithm: AlgorithmIdentifier, data: BufferSource): Promise<ArrayBuffer>;
+  digest(algorithm: DigestAlgorithms, data: BufferSource): Promise<ArrayBuffer>;
   encrypt(algorithm: AlgorithmIdentifier | RsaOaepParams | AesCtrParams | AesCbcParams | AesGcmParams, key: CryptoKey, data: BufferSource): Promise<any>;
   exportKey(format: "jwk", key: CryptoKey): Promise<JsonWebKey>;
   exportKey(format: Exclude<KeyFormat, "jwk">, key: CryptoKey): Promise<ArrayBuffer>;
@@ -216,9 +219,9 @@ export interface SubtleCrypto {
   importKey(format: "jwk", keyData: JsonWebKey, algorithm: AlgorithmIdentifier | RsaHashedImportParams | EcKeyImportParams | HmacImportParams | AesKeyAlgorithm, extractable: boolean, keyUsages: KeyUsage[]): Promise<CryptoKey>;
   importKey(format: Exclude<KeyFormat, "jwk">, keyData: BufferSource, algorithm: AlgorithmIdentifier | RsaHashedImportParams | EcKeyImportParams | HmacImportParams | AesKeyAlgorithm, extractable: boolean, keyUsages: KeyUsage[]): Promise<CryptoKey>;
   importKey(format: KeyFormat, keyData: BufferSource | JsonWebKey, algorithm: AlgorithmIdentifier, extractable: boolean, keyUsages: KeyUsage[]): Promise<CryptoKey>;
-  sign(algorithm: AlgorithmIdentifier | RsaPssParams | EcdsaParams, key: CryptoKey, data: BufferSource): Promise<ArrayBuffer>;
+  sign(algorithm: SignAlgorithms, key: CryptoKey, data: BufferSource): Promise<ArrayBuffer>;
   unwrapKey(format: KeyFormat, wrappedKey: BufferSource, unwrappingKey: CryptoKey, unwrapAlgorithm: AlgorithmIdentifier | RsaOaepParams | AesCtrParams | AesCbcParams | AesGcmParams, unwrappedKeyAlgorithm: AlgorithmIdentifier | RsaHashedImportParams | EcKeyImportParams | HmacImportParams | AesKeyAlgorithm, extractable: boolean, keyUsages: KeyUsage[]): Promise<CryptoKey>;
-  verify(algorithm: AlgorithmIdentifier | RsaPssParams | EcdsaParams, key: CryptoKey, signature: BufferSource, data: BufferSource): Promise<boolean>;
+  verify(algorithm: SignAlgorithms, key: CryptoKey, signature: BufferSource, data: BufferSource): Promise<boolean>;
   wrapKey(format: KeyFormat, key: CryptoKey, wrappingKey: CryptoKey, wrapAlgorithm: AlgorithmIdentifier | RsaOaepParams | AesCtrParams | AesCbcParams | AesGcmParams): Promise<ArrayBuffer>;
 }
 
@@ -380,3 +383,28 @@ export type PreparedHashedAlgorithm<T extends Algorithm = Algorithm> = Omit<T, "
 export interface AesCmacParams extends Algorithm {
   length: number;
 }
+
+export interface ShakeParams extends Algorithm {
+  /**
+   * Output length in bytes
+   */
+  length?: number;
+}
+
+export interface DesKeyAlgorithm extends KeyAlgorithm {
+  length: number;
+}
+
+export interface DesParams extends Algorithm {
+  iv: BufferSource;
+}
+
+export interface DesKeyGenParams extends Algorithm {
+  length: number;
+}
+
+export interface DesDerivedKeyParams extends Algorithm {
+  length: number;
+}
+
+export interface DesImportParams extends Algorithm { }
\ No newline at end of file