&seed } // getEntropy is very slow (~500µs), so we don't want it on the hot path. // We keep both a persistent DRBG instance and a pool of additional instances. // Occasional uses will use drbgInstance, even if the pool was emptied since the // last use. Frequent concurrent uses will fill the pool and use it. var drbgInstance atomic.Pointer[Counter] var drbgPool = sync.Pool{ New: func() any { return NewCounter(getEntropy()) }, } // Read fills b with cryptographically secure random bytes. In FIPS mode,...

OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

================================================================

github.com/gobwas/pool
https://github.com/gobwas/pool
----------------------------------------------------------------
The MIT License (MIT)

Copyright (c) 2017-2019 Sergey Kamardin <******@****.***>

this source code is governed by a BSD-style // license that can be found in the LICENSE file. package drbg import ( "crypto/internal/entropy" "crypto/internal/fips140" "crypto/internal/randutil" "crypto/internal/sysrand" "io" "sync" ) var drbgs = sync.Pool{ New: func() any { var c *Counter entropy.Depleted(func(seed *[48]byte) { c = NewCounter(seed) }) return c }, } // Read fills b with cryptographically secure random bytes. In FIPS mode, it // uses an SP 800-90A Rev. 1 Deterministic Random Bit Generator...