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Block ciphers transform a fixed-length block of plaintext into a common block of ciphertext of 64 or 128 bits.

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Rivest-Shamir-Adleman - uses the product of two very large prime numbers with an equal length of between 100 and 200 digits.

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Internet Key Exchange (IKE), which is a fundamental component of IPsec Virtual Private Networks (VPNs).

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Asymmetrical encryption algorithms use one key to encrypt data and a different key to decrypt data.

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letters are replaced

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letters are rearranged

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Internet Protocol Security

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Digital Encryption Standard (DES) is a symmetric block cipher with 64-bit block size that uses a 56-bit key. It takes a 64-bit block of plaintext as input and outputs a 64-bit block of ciphertext.

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Secure Shell

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Studying and breaking codes

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reverses the process. Encryption also requires a key, which plays a critical role in encrypting and decrypting a message.

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(Secure Sockets Layer) provides an electronic exchange method to share the secret key. Secure protocols

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When enabling encryption, readable data

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plaintext combined with a secret key creates a new character, which then combines with the plaintext to produce ciphertext

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a program that provides privacy and authentication for data communication.

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made up of exactly similar parts facing each other or around an axis; symmetrical.

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Key management refers to management of cryptographic keys in a cryptosystem. This includes dealing with the generation, exchange, storage, use, crypto-shredding and replacement of keys. It includes cryptographic protocol design, key servers, user procedures, and other relevant protocols