CCSP Self-Study: Securing Cisco IOS Networks (SECUR)

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Scalable Encryption Processing (SEP).

VPN concentrator modules that perform hardware-based cryptographic functions, including random number generation, hash transforms (MD5 and SHA-1) for authentication, and encryption and decryption (DES, Triple-DES, and AES).

Secure Hash Algorithm-1 (SHA-1).

Algorithm that takes a message of less than 2⁶⁴ bits in length and produces a 160-bit message digest. The large message digest provides security against brute-force collision and inversion attacks. SHA-1 (NIS94c) is a revision to SHA that was published in 1994.

Secure Shell (SSH).

Sometimes called Secure Socket Shell, a UNIX-based command interface and protocol for gaining access to a remote computer securely.

Secure Sockets Layer (SSL).

Encryption technology ...