Detection of Anomalous Key Material

A machine-readable medium having executable instructions encoded thereon, which, when executed by at least one processor of a machine, cause the machine to perform operations comprising:

• obtain a set of cryptographic key material, each cryptographic key material in the set having a set of attributes, the number of attributes in the set of attributes defining a dimensionality of the set of cryptographic key material;
• create an anomalous scoring model based on an estimated density derived from the set of cryptographic key material;
• receive cryptographic key material from a relying system;
• calculate an anomaly score for the cryptographic key material based on the anomalous scoring model;
• and
• return the anomaly score to the relying system, the anomaly score used by the relying system to determine whether to honor a request associated with the cryptographic key material.

A system comprising:

• a processor and executable instructions accessible on a machine-readable medium that, when executed, cause the system to perform operations comprising:
• obtain a set of cryptographic key material, each cryptographic key material in the set having a set of attributes, the number of attributes in the set of attributes defining a dimensionality of the set of cryptographic key material;
• create an anomalous scoring model based on an estimated density derived from the set of cryptographic key material;
• receive cryptographic key material from a relying system;
• calculate an anomaly score for the cryptographic key material based on the anomalous scoring model;
• and
• return the anomaly score to the relying system, the anomaly score used by the relying system to determine whether to honor a request associated with the cryptographic key material.