mirror of
https://github.com/guanzhi/GmSSL.git
synced 2026-05-12 03:16:25 +08:00
103 lines
2.9 KiB
Go
103 lines
2.9 KiB
Go
/*
|
|
* Copyright (c) 2017 - 2018 The GmSSL Project. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3. All advertising materials mentioning features or use of this
|
|
* software must display the following acknowledgment:
|
|
* "This product includes software developed by the GmSSL Project.
|
|
* (http://gmssl.org/)"
|
|
*
|
|
* 4. The name "GmSSL Project" must not be used to endorse or promote
|
|
* products derived from this software without prior written
|
|
* permission. For written permission, please contact
|
|
* guanzhi1980@gmail.com.
|
|
*
|
|
* 5. Products derived from this software may not be called "GmSSL"
|
|
* nor may "GmSSL" appear in their names without prior written
|
|
* permission of the GmSSL Project.
|
|
*
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by the GmSSL Project
|
|
* (http://gmssl.org/)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
|
|
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE GmSSL PROJECT OR
|
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
package sm3
|
|
|
|
import (
|
|
"gmssl"
|
|
"hash"
|
|
)
|
|
|
|
type digest struct {
|
|
ctx *gmssl.DigestContext
|
|
}
|
|
|
|
func New() hash.Hash {
|
|
d := new(digest)
|
|
ctx, err := gmssl.NewDigestContext("SM3")
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
d.ctx = ctx
|
|
return d
|
|
}
|
|
|
|
func (d *digest) BlockSize() int {
|
|
ret, err := gmssl.GetDigestBlockSize("SM3")
|
|
if err != nil {
|
|
return 0
|
|
}
|
|
return ret
|
|
}
|
|
|
|
func (d *digest) Size() int {
|
|
ret, err := gmssl.GetDigestLength("SM3")
|
|
if err != nil {
|
|
return 0
|
|
}
|
|
return ret
|
|
}
|
|
|
|
func (d *digest) Reset() {
|
|
_ = d.ctx.Reset()
|
|
}
|
|
|
|
func (d *digest) Write(p []byte) (int, error) {
|
|
err := d.ctx.Update(p)
|
|
return len(p), err
|
|
}
|
|
|
|
func (d *digest) Sum(in []byte) []byte {
|
|
d.ctx.Update(in)
|
|
ret, err := d.ctx.Final()
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
return ret
|
|
}
|