Could not encrypt access token and refresh token string – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.2-8.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your Elasticsearch operation.

Briefly, this error occurs when Elasticsearch fails to encrypt the access token and refresh token string due to issues with the encryption key or the encryption process itself. This could be due to an incorrect or missing encryption key, or a problem with the encryption algorithm. To resolve this issue, you can try regenerating the encryption key, ensuring it is correctly configured in Elasticsearch. If the problem persists, check the encryption algorithm being used and ensure it is compatible with Elasticsearch. Also, ensure that the tokens are correctly formatted and not corrupted.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

This guide will help you check for common problems that cause the log ” could not encrypt access token and refresh token string ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, refresh.

Log Context

Log “could not encrypt access token and refresh token string” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                    updateMap.put("superseding.encrypted_tokens"; encryptedAccessAndRefreshToken);
                    updateMap.put("superseding.encryption_iv"; Base64.getEncoder().encodeToString(iv));
                    updateMap.put("superseding.encryption_salt"; Base64.getEncoder().encodeToString(salt));
                } catch (GeneralSecurityException e) {
                    logger.warn("could not encrypt access token and refresh token string"; e);
                    onFailure.accept(invalidGrantException("could not refresh the requested token"));
            assert seqNo != SequenceNumbers.UNASSIGNED_SEQ_NO : "expected an assigned sequence number";
            assert primaryTerm != SequenceNumbers.UNASSIGNED_PRIMARY_TERM : "expected an assigned primary term";


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?