random

package
v0.37.0 Latest Latest
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Published: Mar 19, 2025 License: BSD-3-Clause Imports: 1 Imported by: 0

Documentation

Overview

Package random represents the imported interface "wasi:random/random@0.2.0".

WASI Random is a random data API.

It is intended to be portable at least between Unix-family platforms and Windows.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func GetRandomBytes

func GetRandomBytes(len_ uint64) (result cm.List[uint8])

GetRandomBytes represents the imported function "get-random-bytes".

Return `len` cryptographically-secure random or pseudo-random bytes.

This function must produce data at least as cryptographically secure and fast as an adequately seeded cryptographically-secure pseudo-random number generator (CSPRNG). It must not block, from the perspective of the calling program, under any circumstances, including on the first request and on requests for numbers of bytes. The returned data must always be unpredictable.

This function must always return fresh data. Deterministic environments must omit this function, rather than implementing it with deterministic data.

get-random-bytes: func(len: u64) -> list<u8>

func GetRandomU64

func GetRandomU64() (result uint64)

GetRandomU64 represents the imported function "get-random-u64".

Return a cryptographically-secure random or pseudo-random `u64` value.

This function returns the same type of data as `get-random-bytes`, represented as a `u64`.

get-random-u64: func() -> u64

Types

This section is empty.

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