14 Cryptographic Services

The modules described in this chapter implement various algorithms of a cryptographic nature. They are available at the discretion of the installation. Here’s an overview:

• 1. hashlib — Secure hashes and message digests
• 2. hmac — Keyed-Hashing for Message Authentication
• 3. md5 — MD5 message digest algorithm
• 4. sha — SHA-1 message digest algorithm