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v/vlib/crypto/rand/rand.v

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2022-01-04 12:21:08 +03:00
// Copyright (c) 2019-2022 Alexander Medvednikov. All rights reserved.
2019-07-31 04:24:12 +03:00
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module rand
struct ReadError {
Error
}
pub fn (err ReadError) msg() string {
return 'crypto.rand.read() error reading random bytes'
}
// bytes returns an array of `bytes_needed` random bytes.
// NB: this call can block your program for a long period of time,
// if your system does not have access to enough entropy.
// See also rand.bytes(), if you do not need really random bytes,
// but instead pseudo random ones, from a pseudo random generator
// that can be seeded, and that is usually faster.
pub fn bytes(bytes_needed int) ?[]byte {
return read(bytes_needed)
}