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Update rand.Read error handling

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As of Go 1.24, rand.Read is guaranteed to never return an error. This change removes the error check and the associated fallback function when calling rand.Read.
This commit is contained in:
Ryan Smith
2025-03-03 22:07:45 -08:00
parent c96313242a
commit 122e1ca83d
1 changed files with 3 additions and 10 deletions
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13
internal/stix/uuid.go
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@@ -4,7 +4,6 @@ import (
"crypto/rand" "crypto/rand"
"crypto/sha1" "crypto/sha1"
"fmt" "fmt"
prng "math/rand/v2"
) )
var ( var (
@@ -80,16 +79,10 @@ func newUUIDv4() string {
// overwritten to indicate version 4 and the variant (the format of the // overwritten to indicate version 4 and the variant (the format of the
// UUID). // UUID).
// Get 16 random bytes. // Get 16 random bytes. crypto/rand.Read is guaranteed to never return an
// error (as of Go 1.24).
var b = [16]byte{} var b = [16]byte{}
_, err := rand.Read(b[:]) rand.Read(b[:])
if err != nil {
// Fall back to PRNG if the OS random number generator call fails.
for i := range b {
// Go's math/rand/v2 package is imported as `prng`.
b[i] = byte(prng.Int())
}
}
// Overwrite the version bits with 0b0100 (UUID version 4). // Overwrite the version bits with 0b0100 (UUID version 4).
b[6] = (b[6] & 0x0f) | 0x40 b[6] = (b[6] & 0x0f) | 0x40