More troubling is the . If two roots cross-certify each other directly, an attacker compromising one root can now impersonate the other. Because the compromised root can issue a certificate that chains to the honest root (via the R2R), the honest root’s name and key material are now effectively co-signed by the adversary. The two roots’ security postures merge. Trust becomes the weakest link multiplied.
While not always strictly mandatory for every plugin, installing the certificate is "highly recommended" for several reasons:
: You must have administrative privileges on the Windows machine to install certificates into the Trusted Root Certification Authorities store. r2r root certificate
To properly set up the certificate on Windows, follow these standard steps:
The system now has two gods, each having blessed the other. This is not merely cross-signing. Cross-signing typically involves one root acting as a temporary backup for another’s subordinate CA. R2R is direct root-to-root endorsement. More troubling is the
Consider validation: A path-building algorithm, when faced with an R2R, must be careful not to loop forever. Standard X.509 path validation (RFC 5280) expects a monotonic chain toward a single trust anchor. R2R violates that assumption. Implementations must introduce or explicit policy mappings to cut the cycle. Without them, the validator could theoretically walk from Root A to Root B and back to Root A, ad infinitum.
Thus, the R2R certificate is a masterpiece of engineering irony: a structure designed to be invisible, operating only in the shadow of the root’s self-signed solitude. It is the cryptographic equivalent of two mirrors facing each other — infinite regression masked as redundancy. The two roots’ security postures merge
However, I couldn't find a specific paper that focuses solely on the R2R root certificate. The R2R protocol is often discussed in the context of Wi-Fi networks, authentication, and authorization.