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47 lines
1.4 KiB
Odin
47 lines
1.4 KiB
Odin
/*
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Universally Unique Identifiers (`UUID`) according to [[ RFC 4122 ; https://tools.ietf.org/html/rfc4122.html ]], with additions from [[ RFC 9562 ; https://tools.ietf.org/html/rfc9562.html ]].
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The UUIDs are textually represented and read in the following string format:
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`00000000-0000-v000-V000-000000000000`
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`v` is where the version bits reside, and `V` is where the variant bits reside.
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The meaning of the other bits is version-dependent.
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Outside of string representations, UUIDs are represented in memory by a 128-bit
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structure organized as an array of 16 bytes.
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Of the UUID versions which may make use of random number generation, a
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requirement is placed upon them that the underlying generator be
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cryptographically-secure, per RFC 9562's suggestion.
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- Version 1 without a node argument.
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- Version 4 in all cases.
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- Version 6 without either a clock or node argument.
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- Version 7 in all cases.
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Example:
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package main
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import "core:crypto"
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import "core:encoding/uuid"
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main :: proc() {
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my_uuid: uuid.Identifier
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{
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// This scope will have a CSPRNG.
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context.random_generator = crypto.random_generator()
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my_uuid = uuid.generate_v7()
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}
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// Back to the default random number generator.
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}
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For more information on the specifications, see here:
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- [[ https://www.rfc-editor.org/rfc/rfc4122.html ]]
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- [[ https://www.rfc-editor.org/rfc/rfc9562.html ]]
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*/
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package uuid
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