Add BSSPEKE_ALGORITHM_BACKUP constant

matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/crypto/CryptoConstants.kt

@@ -33,6 +33,8 @@ const val MXCRYPTO_ALGORITHM_MEGOLM_BACKUP = "m.megolm_backup.v1.curve25519-aes-
 
 const val BCRYPT_ALGORITHM_BACKUP = "org.futo.bcrypt"
 
+const val BSSPEKE_ALGORITHM_BACKUP = "org.futo.bsspeke-ecc"
+
 /**
  * Secured Shared Storage algorithm constant.
  */

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/crypto/keysbackup/model/rest/KeysAlgorithmAndData.kt

@@ -17,6 +17,7 @@
 package org.matrix.android.sdk.internal.crypto.keysbackup.model.rest
 
 import org.matrix.android.sdk.api.crypto.BCRYPT_ALGORITHM_BACKUP
+import org.matrix.android.sdk.api.crypto.BSSPEKE_ALGORITHM_BACKUP
 import org.matrix.android.sdk.api.crypto.MXCRYPTO_ALGORITHM_MEGOLM_BACKUP
 import org.matrix.android.sdk.api.session.crypto.keysbackup.MegolmBackupAuthData
 import org.matrix.android.sdk.api.util.JsonDict
@@ -56,7 +57,11 @@ internal interface KeysAlgorithmAndData {
      */
     fun getAuthDataAsMegolmBackupAuthData(): MegolmBackupAuthData? {
         return MoshiProvider.providesMoshi()
-                .takeIf { algorithm == MXCRYPTO_ALGORITHM_MEGOLM_BACKUP || algorithm == BCRYPT_ALGORITHM_BACKUP }
+                .takeIf {
+                    algorithm == MXCRYPTO_ALGORITHM_MEGOLM_BACKUP
+                            || algorithm == BCRYPT_ALGORITHM_BACKUP
+                            || algorithm == BSSPEKE_ALGORITHM_BACKUP
+                }
                 ?.adapter(MegolmBackupAuthData::class.java)
                 ?.fromJsonValue(authData)
     }