Hash

本文整理汇总了Golang中hash.Hash类的典型用法代码示例。如果您正苦于以下问题：Golang Hash类的具体用法？Golang Hash怎么用？Golang Hash使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了Hash类的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: verifyChecksum

// verifyChecksum computes the hash of a file and compares it
// to a checksum. If comparison fails, it returns an error.
func verifyChecksum(fd *os.File, checksum string) (err error) {
    defer func() {
        if e := recover(); e != nil {
            err = fmt.Errorf("verifyChecksum() -> %v", e)
        }
    }()
    var h hash.Hash
    h = sha256.New()
    buf := make([]byte, 4096)
    var offset int64 = 0
    for {
        block, err := fd.ReadAt(buf, offset)
        if err != nil && err != io.EOF {
            panic(err)
        }
        if block == 0 {
            break
        }
        h.Write(buf[:block])
        offset += int64(block)
    }
    hexhash := fmt.Sprintf("%x", h.Sum(nil))
    if hexhash != checksum {
        return fmt.Errorf("Checksum validation failed. Got '%s', Expected '%s'.",
            hexhash, checksum)
    }
    return
}

开发者ID:tudalex，项目名称:mig，代码行数:30，代码来源:upgrade.go

示例2: Iterated

// Iterated writes to out the result of computing the Iterated and Salted S2K
// function (RFC 4880, section 3.7.1.3) using the given hash, input passphrase,
// salt and iteration count.
func Iterated(out []byte, h hash.Hash, in []byte, salt []byte, count int) {
    combined := make([]byte, len(in)+len(salt))
    copy(combined, salt)
    copy(combined[len(salt):], in)

    if count < len(combined) {
        count = len(combined)
    }

    done := 0
    var digest []byte
    for i := 0; done < len(out); i++ {
        h.Reset()
        for j := 0; j < i; j++ {
            h.Write(zero[:])
        }
        written := 0
        for written < count {
            if written+len(combined) > count {
                todo := count - written
                h.Write(combined[:todo])
                written = count
            } else {
                h.Write(combined)
                written += len(combined)
            }
        }
        digest = h.Sum(digest[:0])
        n := copy(out[done:], digest)
        done += n
    }
}

开发者ID:postfix，项目名称:name_pending，代码行数:35，代码来源:s2k.go

示例3: RefFromHash

// RefFromHash returns a blobref representing the given hash.
// It panics if the hash isn't of a known type.
func RefFromHash(h hash.Hash) Ref {
    meta, ok := metaFromType[reflect.TypeOf(h)]
    if !ok {
        panic(fmt.Sprintf("Currently-unsupported hash type %T", h))
    }
    return Ref{meta.ctor(h.Sum(nil))}
}

开发者ID:JayBlaze420，项目名称:camlistore，代码行数:9，代码来源:ref.go

示例4: authenticateMessage

// Returns true if the provided message is unsigned or has a valid signature
// from one of the provided signers.
func authenticateMessage(signers map[string]Signer, header *Header, msg []byte) bool {
    digest := header.GetHmac()
    if digest != nil {
        var key string
        signer := fmt.Sprintf("%s_%d", header.GetHmacSigner(),
            header.GetHmacKeyVersion())
        if s, ok := signers[signer]; ok {
            key = s.HmacKey
        } else {
            return false
        }

        var hm hash.Hash
        switch header.GetHmacHashFunction() {
        case Header_MD5:
            hm = hmac.New(md5.New, []byte(key))
        case Header_SHA1:
            hm = hmac.New(sha1.New, []byte(key))
        }
        hm.Write(msg)
        expectedDigest := hm.Sum(nil)
        if subtle.ConstantTimeCompare(digest, expectedDigest) != 1 {
            return false
        }
    }
    return true
}

开发者ID:RogerBai，项目名称:heka，代码行数:29，代码来源:net_utils.go

示例5: LoadPost

func LoadPost(ctx *web.Context, val string) {
    username := ctx.Params["username"]
    password := ctx.Params["password"]

    salt := strconv.Itoa64(time.Nanoseconds()) + username

    var h hash.Hash = sha256.New()
    h.Write([]byte(password + salt))

    s, _err := conn.Prepare("INSERT INTO users VALUES(NULL, ?, ?, ?)")
    utils.ReportErr(_err)

    s.Exec(username, string(h.Sum()), salt)
    s.Finalize()
    conn.Close()
    sidebar := utils.Loadmustache("admin.mustache", &map[string]string{})

    //TESTING, REMOVE LATER
    script := "<script type=\"text/javascript\" src=\"../inc/adminref.js\"></script>"
    content := "Welcome to the admin panel, use the control box on your right to control the site content"
    //ENDTESTING

    mapping := map[string]string{"css": "../inc/site.css",
        "title":   "Proggin: Admin panel",
        "sidebar": sidebar,
        "content": content,
        "script":  script}

    output := utils.Loadmustache("frame.mustache", &mapping)
    ctx.WriteString(output)
}

开发者ID:Chownie，项目名称:Proggin，代码行数:31，代码来源:newuser.go