diff options
Diffstat (limited to 'certServiceK8sExternalProvider/src/x509/x509_utils.go')
-rw-r--r-- | certServiceK8sExternalProvider/src/x509/x509_utils.go | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/certServiceK8sExternalProvider/src/x509/x509_utils.go b/certServiceK8sExternalProvider/src/x509/x509_utils.go new file mode 100644 index 00000000..b8b03e1a --- /dev/null +++ b/certServiceK8sExternalProvider/src/x509/x509_utils.go @@ -0,0 +1,57 @@ +/* + * ============LICENSE_START======================================================= + * oom-certservice-k8s-external-provider + * ================================================================================ + * Copyright (C) 2020 Nokia. All rights reserved. + * ================================================================================ + * 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. + * ============LICENSE_END========================================================= + */ + +package x509 + +import ( + "bytes" + "crypto/x509" + "encoding/pem" + "fmt" +) + +// decodeCSR decodes a certificate request in PEM format and returns the +func DecodeCSR(data []byte) (*x509.CertificateRequest, error) { + block, rest := pem.Decode(data) + if block == nil || len(rest) > 0 { + return nil, fmt.Errorf("unexpected CSR PEM on sign request") + } + if block.Type != "CERTIFICATE REQUEST" { + return nil, fmt.Errorf("PEM is not a certificate request") + } + csr, err := x509.ParseCertificateRequest(block.Bytes) + if err != nil { + return nil, fmt.Errorf("error parsing certificate request: %v", err) + } + if err := csr.CheckSignature(); err != nil { + return nil, fmt.Errorf("error checking certificate request signature: %v", err) + } + return csr, nil +} + +// encodeX509 will encode a *x509.Certificate into PEM format. +func EncodeX509(cert *x509.Certificate) ([]byte, error) { + caPem := bytes.NewBuffer([]byte{}) + err := pem.Encode(caPem, &pem.Block{Type: "CERTIFICATE", Bytes: cert.Raw}) + if err != nil { + return nil, err + } + return caPem.Bytes(), nil +} |