Ejemplo n.º 1
0
// if the returned array is empty, then make a call to sslerr.Error()
func (d *digest) Sum(b []byte) []byte {
	buf := make([]C.uchar, d.Size())
	// make a copy of the pointer, so our context does not get freed.
	// this allows further writes.
	ctxTmp := C.SHA256_CTX(d.ctx)
	if d.is224 {
		if C.SHA224_Final(&buf[0], &ctxTmp) != 1 {
			return make([]byte, 0)
		}
	} else {
		if C.SHA256_Final(&buf[0], &ctxTmp) != 1 {
			return make([]byte, 0)
		}
	}
	var result []byte
	if b != nil {
		result = make([]byte, 0)
	} else {
		result = b
	}
	for _, value := range buf {
		result = append(result, byte(value))
	}
	return result
}
Ejemplo n.º 2
0
func (h *sha224) Sum(b []byte) []byte {
	c := h.ctx
	d := make([]byte, C.SHA224_DIGEST_LENGTH)
	if C.SHA224_Final((*C.uchar)(&d[0]), &c) == 0 {
		panic("SHA224_Final failed")
	}
	return append(b, d...)
}
Ejemplo n.º 3
0
func (self *SHA224Hash) Sum(b []byte) []byte {
	digest := make([]C.uchar, self.Size())
	if C.SHA224_Final(&digest[0], &self.sha) != 1 {
		panic("couldn't finalize digest")
	}
	var result []byte
	if b != nil {
		result = make([]byte, len(b)+len(digest))
		for index := range b {
			result[index] = b[index]
		}
	} else {
		result = make([]byte, len(digest))
	}
	for index, value := range digest {
		result[len(b)+index] = byte(value)
	}
	return result
}
Ejemplo n.º 4
0
func (self *SHA224Hash) Sum(b []byte) []byte {
	digest := make([]C.uchar, self.Size())
	// make a copy of the pointer, so our context does not get freed.
	// this allows further writes.
	// TODO perhaps we should think about runtime.SetFinalizer to free the context?
	s_tmp := C.SHA256_CTX(self.sha)
	if C.SHA224_Final(&digest[0], &s_tmp) != 1 {
		panic("couldn't finalize digest")
	}
	var result []byte
	if b != nil {
		result = make([]byte, len(b)+len(digest))
		for index := range b {
			result[index] = b[index]
		}
	} else {
		result = make([]byte, len(digest))
	}
	for index, value := range digest {
		result[len(b)+index] = byte(value)
	}
	return result
}