SSLScan

SSLScan is an efficient SSL service scanner that quickly determines the supported ciphers, preferred ciphers, and service certificate. It even allows for the provision of a certificate and private key for use in a connection.

To build SSLScan, use the following command: "gcc -lssl -o sslscan sslscan.c".

The command line arguments for SSLScan include:
- Command: sslscan [Options] [host:port | host]
- --targets=< file >: This option allows for the input of a file containing a list of hosts to check. Hosts can be supplied with ports (e.g. host:port).
- --no-failed: This option lists only accepted ciphers (default is to list all ciphers).
- --ssl2: With this option, SSLScan only checks SSLv2 ciphers.
- --ssl3: This option allows for the checking of only SSLv3 ciphers.
- --tls1: This option lets you check just TLSv1 ciphers.
- --pk=< file >: This file option allows for the input of a file containing private key or a PKCS#12 file containing a private key/certificate pair produced by MSIE and Netscape.
- --pkpass=< password >: This option is for the password for the private key or PKCS#12 file.
- --certs=< file >: This is for inputting a file containing PEM/ASN1 formatted client certificates.
- --xml=< file >: Output the results to an XML file using this option.
- --version: This command displays the program version.
- --help: To view the help text you are now reading, use this option.

Overall, SSLScan is a handy tool for anyone seeking to scan SSL services quickly and efficiently.