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Contents
package wasi:random;
/// WASI Random is a random data API.
///
/// It is intended to be portable at least between Unix-family platforms and
/// Windows.
interface random {
/// 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>;
/// 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;
}
Version data entries
23 entries across 23 versions & 1 rubygems