Search results with tag "Key distribution"
The key-distribution problem A public-key solution
cs.wellesley.eduIntroduction Key-Distribution Diffie-Hellman Exchange Key distribution centers (KDC) All employees share a key with the KDC. 1. When Alice wants to communicate with Bob, she encrypts, using the secret key she shares with KDC: ‘ Alice wishes to communicate with Bob’ 2. The KDC chooses a new random key, called the session key and
Cipher Suites: Best Practices and Pitfalls
www.f5.comSymmetric key has only K private. Both ends use the same key, which poses the problem of key distribution. The advantage is higher performance; common key sizes are 128-bit or 256-bit. SSL/TLS uses both systems –the Key Exchange Algorithm is the public key system used to exchange the symmetric key. Examples: ECDHE, DHE, RSA, ECDH, ADH
Chapter 3 Principles of Public-Key Cryptosystems
ajaybolar.weebly.comThe concept of public-key cryptography evolved from an attempt to attack two of the most difficult problems associated with symmetric encryption. key distribution under symmetric encryption requires either (1) that two communicants already share a key, which somehow has been distributed to them; or (2) the use of a key distribution center.
Lecture 12: Public-Key Cryptography and the RSA Algorithm ...
engineering.purdue.eduhand, in the SSL/TLS protocol, an HTTPS web server makes its public key available through a certificate of the sort you’ll see in the next lecture.] As we will see, this solves one of the most vexing problems associated with symmetric-key cryptography — the problem of key distribution. 3