X509 certificates
Read, download, analyze and verify X.509 certificates.
cert_verify(cert, root = ca_bundle()) download_ssl_cert(host = "localhost", port = 443, ipv4_only = FALSE) ca_bundle()
cert |
certificate (or certificate-chain) to be verified. Must be cert or list or path. |
root |
trusted pubkey or certificate(s) e.g. CA bundle. |
host |
string: hostname of the server to connect to |
port |
string or integer: port or protocol to use, e.g: |
ipv4_only |
do not use IPv6 connections |
If https verification fails and you can't figure out why, have a look at https://ssldecoder.org.
# Verify the r-project HTTPS cert
chain <- download_ssl_cert("cran.r-project.org", 443)
print(chain)
cert_data <- as.list(chain[[1]])
print(cert_data$pubkey)
print(cert_data$alt_names)
cert_verify(chain, ca_bundle())
# Write cert in PEM format
cat(write_pem(chain[[1]]))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.