Today, AWS IoT Core announced the support for new algorithms for certificate signing and key generation, expanding the list of already supported asymmetric X.509 client certificate signature schemes. AWS IoT Core is a managed service that allows customers to connect billions of Internet of Things (IoT) devices to AWS and uses X.509 certificates as one of the means to authenticate client and device connections to AWS cloud. The support for Rivest Shamir Adleman Signature Scheme with Appendix based on the Probabilistic Signature Scheme (RSASSA-PSS) signing and P-521 elliptic curve key algorithms, provide developers more flexibility to strengthen the security posture of their IoT solutions and comply with organization’s specific cryptographic standard compliance requirements.
Source:: Amazon AWS