name: ECP
full_form: Enhanced Client or Proxy (as defined by SAML)
context: The Internet Key Exchange protocol IKEv2 shall be supported for negotiation of IPsec SAs. The following additional requirements apply. General: IKEv2 Configuration Payload as defined in RFC 7296 [43] should be supported. Protocol support for High Availability as defined in RFC 6311 [42] should be supported. For IKE_SA_INIT exchange: The following algorithms are listed with their names according to [44]. Following algorithms shall be supported: - Confidentiality: AES-GCM with a 16 octet ICV with 128-bit key length; - Pseudo-random function: PRF_HMAC_SHA2_256; - Integrity: AUTH_HMAC_SHA256_128; - Diffie-Hellman group 19 (256-bit random ECP group) ; Following algorithms should be supported: - Confidentiality: AES-GCM with a 16 octet ICV with 256-bit key length; - Pseudo-random function: PRF_HMAC_SHA2_384; - Diffie-Hellman group 20 (384-bit random ECP group). - Diffie-Hellman group 31 (Curve25519). NOTE 1: The IANA IKEv2 registry [44] contains further references for the algorithms listed.
description: ECP refers to a type of elliptic curve used in cryptographic key exchange, specifically within the context of Internet Key Exchange protocol (IKEv2) as defined by SAML. In this scenario, ECP is related to Diffie-Hellman groups, which are parameters for key exchange algorithms.
explanation: The classification of ECP as a Parameter stems from its role in defining specific cryptographic settings within IKEv2 negotiations, such as the use of elliptic curves (e.g., Curve25519) and Diffie-Hellman groups. This context highlights ECP's function as a critical parameter for secure key exchange.
section_title: 5.4.2	Profiling of IKEv2
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