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r.(DefaultReader); ok { Read(b) return nil } fips140.RecordNonApproved() randutil.MaybeReadByte(r) _, err := io.ReadFull(r, b) return err } // ReadWithReaderDeterm is like ReadWithReader, but it doesn't call // [randutil.MaybeReadByte] on non-default Readers. func ReadWithReaderDeterm(r io.Reader, b []byte) error { if _, ok := r.(DefaultReader); ok { Read(b) return nil } fips140.RecordNonApproved() _, err := io.ReadFull(r, b) return err } golang.org/fips140@v1.0.0-c2097c7c/fips140/v1.0.0-c2097c7c/drbg/rand_test.go...

cryptographically secure random // bytes. It is intended for use in APIs that expose a rand io.Reader. func ReadWithReader(r io.Reader, b []byte) error { if _, ok := r.(DefaultReader); ok { Read(b) return nil } fips140.RecordNonApproved() _, err := io.ReadFull(r, b) return err } golang.org/fips140@v1.26.0/fips140/v1.26.0/drbg/rand_test.go // Copyright 2025 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package...