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# 14. Layanan Kriptografi

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:

- 14.1. `hashlib` --- Secure hashes and message digests
  - 14.1.1. Key derivation
- 14.2. `hmac` --- Keyed-Hashing for Message Authentication
- 14.3. `md5` --- MD5 message digest algorithm
- 14.4. `sha` --- SHA-1 message digest algorithm