pub fn validate_pop_linking_simple(
client_cert_subject: Option<&str>,
csr_subject: &str,
) -> Result<(), String>Expand description
Validate that the mTLS client certificate subject matches the CSR subject using simple string comparison (legacy API).
This is the simplified form that takes raw strings. For RFC 6125-compliant
matching that considers SANs, use validate_pop_linking with an
AuthResult instead.