1 Long: proxy-pinnedpubkey 2 Arg: <hashes> 3 Help: FILE/HASHES public key to verify proxy with 4 Protocols: TLS 5 Category: proxy tls 6 --- 7 Tells curl to use the specified public key file (or hashes) to verify the 8 proxy. This can be a path to a file which contains a single public key in PEM 9 or DER format, or any number of base64 encoded sha256 hashes preceded by 10 \'sha256//\' and separated by \';\' 11 12 When negotiating a TLS or SSL connection, the server sends a certificate 13 indicating its identity. A public key is extracted from this certificate and 14 if it does not exactly match the public key provided to this option, curl will 15 abort the connection before sending or receiving any data. 16 17 If this option is used several times, the last one will be used. 18