The Project 25 standard covers all of the parts of a system for
\npublic-safety Land Mobile Radio communications. These systems
\ninclude portable radios for hand held operation, mobile radios for
\nvehicular operation, base stations for fixed installations, and
\nother fixed equipment for wide area operation and console operator
\npositions, as well as computer equipment for data communications.
\nThe standard defines the means for this equipment to send and
\nreceive digital information, in the form of either voice or data
\n(i.e. non-voice) messages.<\/p>\n
One requirement given in the TIA-102 suite of standards is to be
\nable to protect digital communications with encryption. The
\nimplication is that a means for encryption and decryption needs to
\nbe included in those system elements (e.g. portable and mobile
\nradios) that intend to protect the messages they exchange in
\nconformance to the other parts of Project 25 standard. It is the
\nscope of this document to describe how to use encryption to protect
\nmessages for the Project 25 standard.<\/p>\n
[TSB102]<\/strong> also contains a Functional Network The functions of encryption and decryption generally take place This Block Encryption Protocol defines the operation of Project 25 – Digital Land Mobile Radio Block Encryption Protocol<\/b><\/p>\n
\nModel to describe a Project 25 standard system. Such a system is
\ndecomposed into functional groups with simple designations like
\n'MR' for mobile radio, and 'BR' for base station (radio). These
\nfunctional groups are loosely correlated to real products and
\ndevices, but they need not be. Each functional group has one or
\nmore interfaces to other functional groups that allow information
\nto be transferred through the system. The interface for
\ncommunications over a radio channel is called the Common Air
\nInterface (CAI). The formats for transmission of information over
\nthe Common Air Interface are described in
\n[BAAA]<\/span> and in
\n[BBAC].<\/span><\/p>\n
\nnear the end points of a message path in a system, in order to
\nmaintain the confidentiality of the information through as much of
\nthe system as possible. This means that the encryption and
\ndecryption functions can be provided at points where voice
\ninformation is coded with IMBE, such as an MR (mobile or portable
\nradio) or a CON (console). The functions may also be provided at
\npoints where data (nonvoice) information enters the system such as
\nan RFG (RF system Gateway).<\/p>\n
\nencryption and decryption in a way that is compatible with
\ninformation transfer through a Project 25 standard system, and
\nespecially, through the CAI of such a system. It is important to
\nnote that the Block Encryption Protocol is not actually part of the
\nCAI because encryption and decryption may take place in system
\ndevices that are not directly connected to the CAI.<\/p>\n","protected":false},"excerpt":{"rendered":"\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n TIA<\/b><\/a><\/td>\n 2015<\/td>\n 56<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":690328,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2646],"product_tag":[],"class_list":{"0":"post-690318","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-tia","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/690318","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/690328"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=690318"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=690318"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=690318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}