DNS_ERROR_INVALID_KEY_SIZE - 9106 (0x2392)
The specified key size is not supported.
Updated: Feb 21, 2026
Technical Meaning
The DNS_ERROR_INVALID_KEY_SIZE error code indicates that a specified key size is not supported by the system or application. This can occur in scenarios where cryptographic operations are involved, such as when configuring DNSSEC (Domain Name System Security Extensions).
Error Details
This error typically arises when an attempt is made to use a key size that does not conform to the requirements of the cryptographic algorithms being used. The specific key size that is not supported can vary depending on the context in which this error occurs.
Usage Context
The DNS_ERROR_INVALID_KEY_SIZE error code may be encountered during operations involving DNSSEC, where key sizes must adhere to certain standards and specifications. It can also appear when configuring or managing cryptographic settings within a Windows environment.
Developer Interpretation
When encountering the DNS_ERROR_INVALID_KEY_SIZE error, developers should ensure that the key size being used is compatible with the cryptographic algorithms in use. This may involve verifying the key size against documented requirements and adjusting the configuration accordingly.
Related Errors
- DNS_ERROR_CDS_MALFORMED: Indicates a malformed CDS (Delegation Signer) record.
- DNS_ERROR_DS_AUTH_FAILURE: Authentication failure during DNSSEC operations.
FAQ
Q: What does DNS_ERROR_INVALID_KEY_SIZE mean?
A: It indicates that the specified key size is not supported by the system or application, typically in cryptographic operations involving DNSSEC.
Q: How can I resolve this error?
A: Ensure that the key size used is compatible with the cryptographic algorithms being employed. Consult documentation for specific requirements and adjust your configuration accordingly.
Summary
The DNS_ERROR_INVALID_KEY_SIZE error code signifies an unsupported key size in cryptographic operations, often related to DNSSEC configurations. Developers should verify key sizes against documented standards and make necessary adjustments.