diff --git a/src/client.ts b/src/client.ts
index 9106e5277..0067a4fa7 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -65,7 +65,7 @@ import { IIdentityServerProvider } from "./@types/IIdentityServerProvider";
 import type Request from "request";
 import { MatrixScheduler } from "./scheduler";
 import { ICryptoCallbacks, NotificationCountType } from "./matrix";
-import { ISecretStorageKeyInfo } from "./crypto/SecretStorage";
+import { ISecretStorageKeyInfo } from "./crypto/api";
 import { MemoryCryptoStore } from "./crypto/store/memory-crypto-store";
 import { LocalStorageCryptoStore } from "./crypto/store/localStorage-crypto-store";
 import { IndexedDBCryptoStore } from "./crypto/store/indexeddb-crypto-store";
diff --git a/src/crypto/EncryptionSetup.ts b/src/crypto/EncryptionSetup.ts
index ccf8aeb47..406abc512 100644
--- a/src/crypto/EncryptionSetup.ts
+++ b/src/crypto/EncryptionSetup.ts
@@ -12,7 +12,7 @@ import {
     ISignedKey,
     KeySignatures,
 } from "../matrix";
-import { ISecretStorageKeyInfo } from "./SecretStorage";
+import { ISecretStorageKeyInfo } from "./api";
 import { IKeyBackupInfo } from "./keybackup";
 
 interface ICrossSigningKeys {
diff --git a/src/crypto/SecretStorage.ts b/src/crypto/SecretStorage.ts
index 3b2fca435..0668b0b3a 100644
--- a/src/crypto/SecretStorage.ts
+++ b/src/crypto/SecretStorage.ts
@@ -20,23 +20,13 @@ import { randomString } from '../randomstring';
 import { encryptAES, decryptAES, IEncryptedPayload } from './aes';
 import { encodeBase64 } from "./olmlib";
 import { ICryptoCallbacks, MatrixClient, MatrixEvent } from '../matrix';
-import { IAddSecretStorageKeyOpts, IPassphraseInfo } from './api';
+import { IAddSecretStorageKeyOpts, ISecretStorageKeyInfo } from './api';
 import { EventEmitter } from 'stream';
 
 export const SECRET_STORAGE_ALGORITHM_V1_AES = "m.secret_storage.v1.aes-hmac-sha2";
 
 const ZERO_STR = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
 
-export interface ISecretStorageKeyInfo {
-    name: string;
-    algorithm: string;
-    // technically the below are specific to AES keys. If we ever introduce another type,
-    // we can split into separate interfaces.
-    iv: string;
-    mac: string;
-    passphrase: IPassphraseInfo;
-}
-
 export type SecretStorageKeyTuple = [keyId: string, keyInfo: ISecretStorageKeyInfo];
 
 export interface ISecretRequest {
diff --git a/src/crypto/api.ts b/src/crypto/api.ts
index a15f8bd5c..57f48c18c 100644
--- a/src/crypto/api.ts
+++ b/src/crypto/api.ts
@@ -16,7 +16,6 @@ limitations under the License.
 
 import { DeviceInfo } from "./deviceinfo";
 import { IKeyBackupInfo } from "./keybackup";
-import { ISecretStorageKeyInfo } from "./SecretStorage";
 
 // TODO: Merge this with crypto.js once converted
 
@@ -107,6 +106,16 @@ export interface ICreateSecretStorageOpts {
     getKeyBackupPassphrase?: () => Promise<Uint8Array>;
 }
 
+export interface ISecretStorageKeyInfo {
+    name: string;
+    algorithm: string;
+    // technically the below are specific to AES keys. If we ever introduce another type,
+    // we can split into separate interfaces.
+    iv: string;
+    mac: string;
+    passphrase: IPassphraseInfo;
+}
+
 export interface ISecretStorageKey {
     keyId: string;
     keyInfo: ISecretStorageKeyInfo;
diff --git a/src/crypto/dehydration.ts b/src/crypto/dehydration.ts
index ef441e7d8..0267e457e 100644
--- a/src/crypto/dehydration.ts
+++ b/src/crypto/dehydration.ts
@@ -19,7 +19,7 @@ import { IndexedDBCryptoStore } from '../crypto/store/indexeddb-crypto-store';
 import { decryptAES, encryptAES } from './aes';
 import anotherjson from "another-json";
 import { logger } from '../logger';
-import { ISecretStorageKeyInfo } from "./SecretStorage";
+import { ISecretStorageKeyInfo } from "./api";
 
 // FIXME: these types should eventually go in a different file
 type Signatures = Record<string, Record<string, string>>;
diff --git a/src/crypto/index.ts b/src/crypto/index.ts
index 0b717c5b7..184557653 100644
--- a/src/crypto/index.ts
+++ b/src/crypto/index.ts
@@ -36,11 +36,10 @@ import { EncryptionSetupBuilder } from "./EncryptionSetup";
 import {
     SECRET_STORAGE_ALGORITHM_V1_AES,
     SecretStorage,
-    ISecretStorageKeyInfo,
     SecretStorageKeyTuple,
     ISecretRequest,
 } from './SecretStorage';
-import { IAddSecretStorageKeyOpts } from "./api";
+import { IAddSecretStorageKeyOpts, ISecretStorageKeyInfo } from "./api";
 import { OutgoingRoomKeyRequestManager } from './OutgoingRoomKeyRequestManager';
 import { IndexedDBCryptoStore } from './store/indexeddb-crypto-store';
 import { ReciprocateQRCode, SCAN_QR_CODE_METHOD, SHOW_QR_CODE_METHOD } from './verification/QRCode';
diff --git a/src/matrix.ts b/src/matrix.ts
index fbda72fe5..78906a716 100644
--- a/src/matrix.ts
+++ b/src/matrix.ts
@@ -20,7 +20,7 @@ import { MatrixScheduler } from "./scheduler";
 import { MatrixClient } from "./client";
 import { ICreateClientOpts } from "./client";
 import { DeviceTrustLevel } from "./crypto/CrossSigning";
-import { ISecretStorageKeyInfo } from "./crypto/SecretStorage";
+import { ISecretStorageKeyInfo } from "./crypto/api";
 
 export * from "./client";
 export * from "./http-api";