September 2025 monthly summary for the zama-ai/kms repository. Delivered foundational enhancements for dynamic peerlist management and system robustness, refactoring SessionPreparer, and improved MPC server startup/shutdown handling. Implemented fixes to TLS verification, party addressing, and role assignments, and introduced concurrency improvements using tokio::sync::RwLock to support dynamic network configurations. These changes lay the groundwork for scalable, secure multi-party interactions with reduced manual reconfiguration and more reliable operation.

February 2025 (2025-02) monthly summary for zama-ai/kms focusing on reliability, security, and cloud integration. Highlights include critical fixes to S3 storage handling and Minio compatibility, plus targeted enhancements to enclave telemetry and AWS KMS integration, improving configurability, testing, and authentication flow.

January 2025 focused on security-focused feature deliveries across two repositories (fhevm and kms) that enhance secure credential flows and cryptographic capabilities. In zama-ai/fhevm, implemented an AWS STS proxy for enclaves within the kms-service and updated Helm charts to enable secure communication with AWS Security Token Service from within enclaves (commit 7c1d87b77905e868ef87152aa971288050f34864). In zama-ai/kms, added RSA key pair support for root keys, enabling asymmetric root key usage. This included updates to the AWS SDK configuration to include an STS endpoint, enhancements to keychain logic to handle both symmetric and asymmetric root keys, and vault configuration refactors to accommodate RSA keypair functionality (commit 658965691181939cc302630dbd932808833f53de).

December 2024 monthly summary for zama-ai/kms: Implemented threshold signing keys provisioning for enclaves in threshold mode, including initialization updates to call kms-gen-keys with signing-keys and threshold and URL-based root_key_id. Introduced a key backup mechanism and storage refactor in KMS core, enabling backing up FHE keys to a separate vault and modularizing storage into storage and keychain layers. Fixed a bug to ensure threshold signing keys exist for enclaves (commit 541c8e938f024ee6872745647a88337af602edf8). Overall impact: stronger security, improved disaster recovery, and cleaner architecture for scalable vault management. Technologies demonstrated: KMS core, threshold cryptography, modular storage architecture, vault integration, FHE key backup.

November 2024 monthly summary for the zama-ai/kms repository. This period focused on performance, reliability, and developer experience across CI/CD, enclave observability, and KMS core configuration. Delivered three major features with concrete improvements, plus fixes that enable easier testing and more efficient storage interactions. Business value is driven by faster and more reliable builds, improved enclave tracing and proxy reliability, unified configuration across execution modes, and reduced S3 calls via an optional storage cache.