Keyper by Jarrid is a suite of crypto key management APIs
...Operations are file-based and can be easily automated, tracked, audited, and managed via file-based processes such as GitOps. Fully integrated with cloud KMS services such as AWS KMS or GCP KMS, leverage managed crypto key generation and reduce infrastructure maintenance burden.
Secure software enclave for storage of sensitive information in memory
This package attempts to reduce the likelihood of sensitive data being exposed when in memory. It aims to support all major operating systems and is written in pure Go. Sensitive data is encrypted and authenticated in memory with XSalsa20Poly1305. The scheme used also defends against cold-boot attacks. Memory allocation bypasses the language runtime by using system calls to query the kernel for resources directly.