Create authenticated string encryption using Web Crypto AES-256-GCM.
Configuration is validated synchronously. Each write uses a random 96-bit IV
and a 128-bit authentication tag. Previous keys are used only for reads.
No environment variables are read and no plaintext, keys, or context are logged.
Create authenticated string encryption using Web Crypto AES-256-GCM. Configuration is validated synchronously. Each write uses a random 96-bit IV and a 128-bit authentication tag. Previous keys are used only for reads. No environment variables are read and no plaintext, keys, or context are logged.