// New returns a new sha256 hash.Hash
func New() hash.Hash {
hash := new(SHA256Hash)
if C.SHA256_Init(&hash.sha) != 1 {
panic("problem creating hash")
}
return hash
}
// New returns a new sha256 hash.Hash
// if the returned hash is empty, then make a call to sslerr.Error()
func New() hash.Hash {
d := new(digest)
if C.SHA256_Init(&d.ctx) != 1 {
return nil
}
return d
}
func (d *digest) Reset() {
if d.is224 {
C.SHA224_Init(&d.ctx)
return
}
C.SHA256_Init(&d.ctx)
}
func sum256(data []byte) []byte {
var hash = make([]byte, 65)
var sha256 C.SHA256_CTX
C.SHA256_Init(&sha256)
C.SHA256_Update(&sha256, unsafe.Pointer(&data[0]), C.size_t(len(data)))
C.SHA256_Final((*C.uchar)(&hash[0]), &sha256)
return hash[:64]
}
func (self *SHA256Hash) Reset() {
C.SHA256_Init(&self.sha)
}
func (h *sha256) Reset() {
if C.SHA256_Init(&h.ctx) != 1 {
panic("SHA256_Init failed") // hash funcs shouldn't fail
}
}