When comparing Keywhiz vs Amazon Key Management Service, the Slant community recommends Keywhiz for most people. In the question“What are the best shared secret managers?” Keywhiz is ranked 9th while Amazon Key Management Service is ranked 10th. The most important reason people chose Keywhiz is:
Keywhiz supports versioning secrets through its admin UI or CLI utilities.
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Pros
Pro Versioning support
Keywhiz supports versioning secrets through its admin UI or CLI utilities.
Pro Extremely secure
Amazon has used a lot of techniques to harden the process of storing and securing keys in its service. For example, keys are not stored on disk, nor are they allowed to persist in memory.
Amazon employees can not access a user's secret keys physically and the keys themselves are stored in the same geographical region as the application they belong to.
Pro Easy to use from a single dashboard
AWS Key Management Service offers a single unified dashboard that teams can use to manage and store their secrets used in applications hosted on AWS services. In the dashboard users can create keys, retrieve them and audit key usage through detailed information offered to them
Cons
Con Still in alpha stage
Keywhiz is still in a very early stage of its development and may not be ready for production yet since it's prone to changes and may have some security issues.
Con Does not generate certificates
KMS does not generate certificates, in order to generate them you have to roll out your own solution.