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TLS_RSA_WITH_AES_128_CCM_8

Breakdown of the TLS_RSA_WITH_AES_128_CCM_8 cipher suite

Cyber Security Rating for TLS_RSA_WITH_AES_128_CCM_8 - B

B

Key Exchange Mechanism

Rivest, Shamir, Adleman-RSA

RSA key exchange does not provide perfect forward secrecy because if an attacker captures the RSA private key, they can decrypt all past communications encrypted with the corresponding public key. This is due to the static nature of the key pairs used in RSA, which contrasts with protocols like Diffie-Hellman, where ephemeral keys ensure that past sessions remain secure even if current keys are compromised.

A

Authentication

Rivest, Shamir, Adleman-RSA

RSA as an authentication mechanism in cipher suites is secure because it relies on the difficulty of factoring large prime numbers. This makes it computationally infeasible for attackers to derive the private key from the public key, ensuring confidentiality and integrity in secure communications.

A

Cipher

Advanced Encryption Standard-AES

AES should be used in cipher suites because it offers strong security with efficient performance, large block size (128 bits), and resistance to known attacks. Its widespread adoption and thorough analysis by the cryptographic community ensure reliability and robustness for encrypting sensitive data.

A

Key Size

128 Bit-128

128-bit symmetric encryption keys are considered secure because they provide an astronomically large number of possible combinations (2^128), making brute-force attacks computationally infeasible with current technology. This level of security is sufficient for most practical purposes and is widely adopted in various encryption protocols.

A

Cipher Mode

Counter with Cipher Block Chaining Message Authentication Code-CCM

CCM (Counter with CBC-MAC) is a mode of operation for cryptographic block ciphers, providing both encryption and authentication. Used in cipher suites, CCM ensures data confidentiality and integrity by combining the Counter (CTR) mode for encryption with the Cipher Block Chaining Message Authentication Code (CBC-MAC) for authentication. This dual functionality makes CCM highly efficient and secure, suitable for resource-constrained environments like IoT and wireless networks. By integrating CCM, cipher suites offer robust protection against unauthorized access and tampering, enhancing overall security in secure communications.

Web infrastructure owners must ensure they only allow secure cipher suites to protect against potential security threats. Cipher suites determine the encryption algorithms and key exchange mechanisms used in HTTPS connections. Insecure cipher suites can leave data vulnerable to interception, decryption, and manipulation by malicious actors. By restricting to secure cipher suites, owners mitigate risks such as data breaches, unauthorized access, and compromise of sensitive information. This proactive measure helps maintain trust with users, ensures compliance with security standards, and safeguards the integrity and confidentiality of data transmitted over the web.
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