The encryption function – Public-Key Cryptography
7.7.3 The encryption function In order to send an encrypted message to Alice, Bob needs to obtain an authentic copy of Alice’s public key PKAlice […]
Security of the RSA algorithm – Public-Key Cryptography
7.8 Security of the RSA algorithm The security of the RSA algorithm relies on the following three assumptions: We will discuss each of these assumptions […]
Authenticity of public keys – Public-Key Cryptography
7.8.3 Authenticity of public keys Another way for Mallory to attack the RSA cryptoystem is to tamper with Alice’s public key. More specifically, Mallory might […]
The Station-to-Station (STS) protocol 2 – Public-Key Cryptography
If the signature verification is successful, Alice generates her own signature sigA(h(gα|gβ)), encrypts it using the shared secret key K, and sends the result to […]
The Station-to-Station (STS) protocol – Public-Key Cryptography
7.9.1 The Station-to-Station (STS) protocol A simple example that nicely illustrates fundamental design principles of an authenticated key agreement protocol is the Station-to-Station (STS) protocol […]
Public-key cryptography in TLS 1.3 – Public-Key Cryptography
7.10 Public-key cryptography in TLS 1.3 Equipped with the mathematical background on public-key cryptography, we can now explore how it is applied in TLS 1.3. […]
Supported groups – Public-Key Cryptography
7.10.2 Supported groups When client Bob starts a TLS handshake with server Alice and wishes to use the ECDHE or DHE key agreement protocol, he […]
Finite Field Diffie-Hellman in TLS – Public-Key Cryptography
7.10.3 Finite Field Diffie-Hellman in TLS When finite field groups are used, server Alice and client Bob execute the conventional Diffie-Hellman key agreement protocol as […]
Hybrid encryption – Public-Key Cryptography
7.11.2 Hybrid encryption A hybrid encryption scheme is a specific type of hybrid cryptosystem that allows Alice and Bob to securely encrypt data they want […]
Example – Hybrid Public Key Encryption – Public-Key Cryptography
7.11.3 Example – Hybrid Public Key Encryption Hybrid Public Key Encryption (HPKE) is a hybrid encryption scheme defined in RFC 9180 [15]. It provides public-key […]