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ceph-csi/vendor/github.com/aws/smithy-go/rand/rand.go
Rakshith R 4f0bb2315b rbd: add aws-sts-metdata encryption type
With Amazon STS and kubernetes cluster is configured with
OIDC identity provider, credentials to access Amazon KMS
can be fetched using oidc-token(serviceaccount token).
Each tenant/namespace needs to create a secret with aws region,
role and CMK ARN.
Ceph-CSI will assume the given role with oidc token and access
aws KMS, with given CMK to encrypt/decrypt DEK which will stored
in the image metdata.

Refer: https://docs.aws.amazon.com/STS/latest/APIReference/welcome.html
Resolves: 

Signed-off-by: Rakshith R <rar@redhat.com>
2022-03-16 07:29:56 +00:00

32 lines
690 B
Go

package rand
import (
"crypto/rand"
"fmt"
"io"
"math/big"
)
func init() {
Reader = rand.Reader
}
// Reader provides a random reader that can reset during testing.
var Reader io.Reader
// Int63n returns a int64 between zero and value of max, read from an io.Reader source.
func Int63n(reader io.Reader, max int64) (int64, error) {
bi, err := rand.Int(reader, big.NewInt(max))
if err != nil {
return 0, fmt.Errorf("failed to read random value, %w", err)
}
return bi.Int64(), nil
}
// CryptoRandInt63n returns a random int64 between zero and value of max
// obtained from the crypto rand source.
func CryptoRandInt63n(max int64) (int64, error) {
return Int63n(Reader, max)
}