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minio/server-auth.go

70 lines
2.2 KiB

/*
* Minio Cloud Storage, (C) 2015 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"crypto/rand"
"encoding/base64"
"github.com/minio/minio/pkg/probe"
)
// generateAccessKeyID - generate random alpha numeric value using only uppercase characters
// takes input as size in integer
func generateAccessKeyID() ([]byte, *probe.Error) {
alpha := make([]byte, MinioAccessID)
_, err := rand.Read(alpha)
if err != nil {
return nil, probe.NewError(err)
}
for i := 0; i < MinioAccessID; i++ {
alpha[i] = alphaNumericTable[alpha[i]%byte(len(alphaNumericTable))]
}
return alpha, nil
}
// generateSecretAccessKey - generate random base64 numeric value from a random seed.
func generateSecretAccessKey() ([]byte, *probe.Error) {
rb := make([]byte, MinioSecretID)
_, err := rand.Read(rb)
if err != nil {
return nil, probe.NewError(err)
}
return []byte(base64.StdEncoding.EncodeToString(rb))[:MinioSecretID], nil
}
// mustGenerateAccessKeyID - must generate random alpha numeric value using only uppercase characters
// takes input as size in integer
func mustGenerateAccessKeyID() []byte {
alpha := make([]byte, MinioAccessID)
_, err := rand.Read(alpha)
fatalIf(probe.NewError(err), "Unable to get random number from crypto/rand.", nil)
for i := 0; i < MinioAccessID; i++ {
alpha[i] = alphaNumericTable[alpha[i]%byte(len(alphaNumericTable))]
}
return alpha
}
// mustGenerateSecretAccessKey - generate random base64 numeric value from a random seed.
func mustGenerateSecretAccessKey() []byte {
rb := make([]byte, MinioSecretID)
_, err := rand.Read(rb)
fatalIf(probe.NewError(err), "Unable to get random number from crypto/rand.", nil)
return []byte(base64.StdEncoding.EncodeToString(rb))[:MinioSecretID]
}