hyperswitch-card-vault

Open-source, PCI-DSS-oriented vault for storing payment card and other sensitive data

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Hyperswitch Card Vault, also known as Rust Locker, is an open-source, self-hostable vault for storing sensitive payment data such as card and bank account details, built to support PCI DSS compliance and GDPR-aligned PII handling. Requests are signed and encrypted end-to-end, and a split custodian-key hierarchy protects the master encryption key. It is intended for payments engineering teams who want to self-host card storage as part of the Hyperswitch payments stack rather than rely on a third party.

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