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26 lines
618 B
Go
26 lines
618 B
Go
package random
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import (
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"crypto/rand"
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"encoding/binary"
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"io"
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"github.com/kaspanet/kaspad/util/binaryserializer"
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)
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// randomUint64 returns a cryptographically random uint64 value. This
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// unexported version takes a reader primarily to ensure the error paths
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// can be properly tested by passing a fake reader in the tests.
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func randomUint64(r io.Reader) (uint64, error) {
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rv, err := binaryserializer.Uint64(r, binary.BigEndian)
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if err != nil {
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return 0, err
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}
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return rv, nil
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}
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// Uint64 returns a cryptographically random uint64 value.
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func Uint64() (uint64, error) {
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return randomUint64(rand.Reader)
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}
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