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| -rw-r--r-- | doc/api/errors.md | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/api/errors.md b/doc/api/errors.md index 642d2445e5..c095279272 100644 --- a/doc/api/errors.md +++ b/doc/api/errors.md @@ -861,8 +861,9 @@ size is reached when the context is created. ### `ERR_CRYPTO_CUSTOM_ENGINE_NOT_SUPPORTED` -A client certificate engine was requested that is not supported by the version -of OpenSSL being used. +An OpenSSL engine was requested (for example, through the `clientCertEngine` or +`privateKeyEngine` TLS options) that is not supported by the version of OpenSSL +being used, likely due to the compile-time flag `OPENSSL_NO_ENGINE`. <a id="ERR_CRYPTO_ECDH_INVALID_FORMAT"></a> |