摘要:
End-to-end security between clients and a server, and traffic visibility to intermediate network devices, achieved through combined mode, single pass encryption and authentication using two keys is disclosed. In various embodiments, a combined encryption-authentication unit includes a cipher unit and an authentication unit coupled in parallel to the cipher unit, and generates an authentication tag using an authentication key in parallel with the generation of the cipher text using an encryption key, where the authentication and encryption key have different key values. In various embodiments, the cipher unit operates in AES counter mode, and the authentication unit operates in parallel, in AES-GMAC mode Using a two key, single pass combined mode algorithm preserves network performance using a limited number of HW gates, while allowing an intermediate device access to the encryption key for deciphering the data, without providing that device the ability to compromise data integrity, which is preserved between the end to end devices.
摘要:
Both end-to-end security and traffic visibility may be achieved by a system using a controller that derives a cryptographic key that is different for each client based on a derivation key and a client identifier that is conveyed in each data packet. The controller distributes the derivation key to information technology monitoring devices and a server to provide traffic visibility. For large key sizes, the key may be derived using a derivation formula as follows: client_key—MSB=AES128(base_key_1, client_ID), (1) client_key—LSB=AES128(base_key_2, client_ID+pad), and (2) client_key=client_key_MSB∥client_key_LSB, where (1) and (2) are executed in parallel. The client key and a client identifier may be used so that end-to-end security may be achieved.
摘要:
Both end-to-end security and traffic visibility may be achieved by a system using a controller that derives a cryptographic key that is different for each client based on a derivation key and a client identifier that is conveyed in each data packet. The controller distributes the derivation key to information technology monitoring devices and a server to provide traffic visibility. For large key sizes, the key may be derived using a derivation formula as follows: client_key—MSB=AES128(base_key_1, client_ID), (1) client_key—LSB=AES128(base_key_2, client_ID+pad), and (2) client_key=client_key_MSB∥client_key_LSB, where (1) and (2) are executed in parallel. The client key and a client identifier may be used so that end-to-end security may be achieved.
摘要:
Methods and apparatus are disclosed to provide for security within a network enclave. In one embodiment authentication logic initiates authentication with a central network authority. Packet processing logic receives a key and an identifier from the central network authority. Security protocol logic then establishes a client-server security association through a communication that includes a client identifier and an encrypted portion and/or an authorization signature, wherein a client authorization key allocated by the central network authority can be reproduced by a server, other than said central network authority, from the client identifier and a derivation key provided to the server by the central network authority to decrypt the encrypted portion and/or to validate the communication using the authorization signature. The server may also provide the client with new session keys and/or new client session identifiers using server-generated derivation keys if desired, protecting these with the client authorization key.
摘要:
A method and apparatus to define multiple zones in a data packet for inclusion in processing by security operations of a security protocol. In one embodiment, each defined zone has an associated list of security operations to which the zone is subjected. In another embodiment, the list of security operations for a zone includes parameters to be passed when performing the security operations on the zone.
摘要:
Methods and apparatus are disclosed to provide for security within a network enclave. In one embodiment authentication logic initiates authentication with a central network authority. Packet processing logic receives a key and an identifier from the central network authority. Security protocol logic then establishes a client-server security association through a communication that includes a client identifier and an encrypted portion and/or an authorization signature, wherein a client authorization key allocated by the central network authority can be reproduced by a server, other than said central network authority, from the client identifier and a derivation key provided to the server by the central network authority to decrypt the encrypted portion and/or to validate the communication using the authorization signature. The server may also provide the client with new session keys and/or new client session identifiers using server-generated derivation keys if desired, protecting these with the client authorization key.
摘要:
A method and apparatus to define multiple zones in a data packet for exclusion from processing by security operations of a security protocol. In one embodiment, each defined zone has an associated list of security operations from which the zone is protected.
摘要:
Both end-to-end security and traffic visibility may be achieved by a system using a controller that derives a cryptographic key that is different for each client based on a derivation key and a client identifier that is conveyed in each data packet. The controller distributes the derivation key to information technology monitoring devices and a server to provide traffic visibility. The key may be derived using a cryptographic one way function and a client identifier so that end-to-end security may be achieved.
摘要:
Cooperating entities share a signaling interface. Each entity establishes a security association between itself and an endpoint, and one of the entities transmits keepalive messages over a channel associated with the security association. Chipsets and systems to implement related methods are also described and claimed.
摘要:
A computer system includes a service partition, not directly accessible to a user, having a security agent to inspect data entering and exiting the computer system on a virtual private network (VPN) tunnel, and a service partition VPN unit to communicate with a VPN gateway. The computer system also includes a user partition, accessible to a user, having a user partition VPN unit to initiate construction of the VPN tunnel with the VPN gateway. Other embodiments are described and claimed.