Security Parameter Index A 32-bit element that uniquely identifies an SA at the receiver (or destination edge device) The destination edge device uses the SPI value to index into the receiving edge device's SA database and fetch the SA
Service Provider Interface A Service Provider Interface specifies the interface a software component should implement if it wants to provide a certain service (conform to a certain standard, which the SPI is part of) Standards including provider side SPIs (and client side APIs) are [IMAGE png]JNDI and [IMAGE png]POS
Security Parameter Index This is a number which, together with a destination IP address and security protocol, uniquely identifies a particular security association When using IKE to establish the security associations, the SPI for each security association is a pseudo-randomly derived number Without IKE, the SPI is manually specified for each security association
(serial peripheral interface): A SPI is a synchronous serial port This is commonly used by Motorola in their microcontroller Many peripheral chips (like A/D converters) exist which can be connected to a SPI port
Security Parameter Index, an index used within IPSEC to keep connections distinct A Security Association (SA) is defined by destination, protocol and SPI Without the SPI, two connections to the same gateway using the same protocol could not be distinguished For more detail, see our IPSEC Overview and/or RFC 2401
An acronym for Security Parameters Index An unstructured opaque index, which is used in conjunction with the destination address to identify a particular security association
SCSI Parallel Interconnect, parallel data cabling to connect up to 15 devices to a host computer over a relatively short distances for which there a number of different speeds and even signaling methods with differing restrictions
Systems Programmer Interface A subset of CICS commands which require a special translator option, for which command security checking can be performed Service Provider Interface A programmable interface associated with JNDI