Main Page | See live article | Alphabetical index Packed encoding rules (PER) are ASN.1 encoding rules for producing a compact transfer syntax for data structures described in ASN.1, defined in 1994. PER provides a much more compact encoding than BER. It tries to represents the data units using the minimum number of bits. The compactness requires that the decoder knows the complete abstract syntax of the data structure to be decoded, however. Documents: ITU-T X.691, ISO 8825-2. This article was originally based on material from FOLDOC, used with permission. Update as needed. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.