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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bcrypt
import (
"github.com/go-crypt/x/base64"
)
// Base64Encode is the base64 encoder for bcrypt.
func Base64Encode(src []byte) []byte {
n := base64.BcryptEncoding.EncodedLen(len(src))
dst := make([]byte, n)
base64.BcryptEncoding.Encode(dst, src)
for dst[n-1] == '=' {
n--
}
return dst[:n]
}
// Base64Decode is the base64 decoder for bcrypt.
func Base64Decode(src []byte) ([]byte, error) {
numOfEquals := 4 - (len(src) % 4)
for i := 0; i < numOfEquals; i++ {
src = append(src, '=')
}
dst := make([]byte, base64.BcryptEncoding.DecodedLen(len(src)))
n, err := base64.BcryptEncoding.Decode(dst, src)
if err != nil {
return nil, err
}
return dst[:n], nil
}
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