DPoP in browsers: sleutelopslag blijft onopgelost probleem

DPoP (Demonstration of Proof-of-Possession) addresses a security gap in OAuth 2.0 by enabling sender-constrained tokens, which offer stronger protection than traditional bearer tokens. However, RFC 9449 does not specify how browsers should securely store the cryptographic keys required for DPoP, leaving developers to make their own architectural decisions. This lack of standardization means there is no universally safe approach to key storage that works across all scenarios, requiring each team to carefully evaluate their specific security requirements and implementation options.