Comparison of data-serialization formats: Difference between revisions

Revision as of 15:37, 14 August 2023

Revision as of 08:16, 24 August 2023

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| [[ASN.1]]<br>([[Basic Encoding Rules|BER]], [[Packed Encoding Rules|PER]] or [[Octet encoding rules|OER]] encoding)

| {{mono|NULL}} type

| {{mono|BOOLEAN}}: {{ubli

| BER: as 1 byte in binary form;

| PER: as 1 bit;

| OER: as 1 byte

}}

| {{mono|INTEGER}}: {{ubli

| BER: variable-length big-endian binary representation (up to 2{{sup|2{{sup|1024}}}} bits);

| PER Unaligned: a fixed number of bits if the integer type has a finite range; a variable number of bits otherwise;

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| OER: 1, 2, or 4 octets (either signed or unsigned) if the integer type has a finite range that fits in that number of octets; a variable number of octets otherwise

}}

| {{mono|REAL}}:{{ubli

| base-10 real values are represented as character strings in ISO 6093 format;

| binary real values are represented in a binary format that includes the mantissa, the base (2, 8, or 16), and the exponent;

| the special values {{mono|NaN, -INF, +INF}}, and negative zero are also supported

}}

| Multiple valid types ({{mono|VisibleString, PrintableString, GeneralString, UniversalString, UTF8String}})

| Data specifications {{mono|SET OF}} (unordered) and {{mono|SEQUENCE OF}} (guaranteed order)

| User definable type

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