The error message "NET::ERR_CERT_WEAK_SIGNATURE_ALGORITHM" indicates that the web browser is rejecting the certificate because it uses a weak signature algorithm. This commonly happens with self-signed certificates, which often use outdated or insecure algorithms.
Why Discontinue Self-Signed Certificates?
Security Compliance: Modern browsers enforce strict security standards and may reject certificates that do not comply with these standards.
Trusted Certificates: Using certificates from a trusted Certificate Authority (CA) ensures compliance with security standards and is less likely to be flagged as insecure.
Weak Signature Algorithm: Self-signed certificates might use weak algorithms like MD5 or SHA-1, which are considered insecure.
Other options do not address the specific cause of the certificate error:
A: Rewriting legacy web functions: Does not address the certificate issue.
B: Disabling deprecated ciphers: Useful for improving security but not related to the certificate error.
C: Blocking non-essential ports: This is unrelated to the issue of certificate validation.
References:
CompTIA SecurityX Study Guide
"Managing SSL/TLS Certificates," OWASP
"Best Practices for Certificate Management," NIST Special Publication 800-57