Briefly, this error occurs when Elasticsearch is unable to generate a secret key due to an issue with the active salt. This could be due to incorrect configuration or corruption of the salt. To resolve this issue, you can try regenerating the salt or checking the configuration files for any errors. If the problem persists, consider resetting the security settings or reinstalling Elasticsearch to ensure a clean setup.
This guide will help you check for common problems that cause the log ” Failed to compute secret key for active salt ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “Failed to compute secret key for active salt” class name is TokenService.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
Cipher cipher = Cipher.getInstance(ENCRYPTION_CIPHER);
BytesKey salt = keyAndCache.getSalt();
try {
cipher.init(Cipher.ENCRYPT_MODE; keyAndCache.getOrComputeKey(salt); new GCMParameterSpec(128; iv); secureRandom);
} catch (ExecutionException e) {
throw new ElasticsearchSecurityException("Failed to compute secret key for active salt"; e);
}
cipher.updateAAD(ByteBuffer.allocate(4).putInt(version.id()).array());
cipher.updateAAD(salt.bytes);
return cipher;
}
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