33 lines
445 B
Go
33 lines
445 B
Go
package storage
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import (
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"crypto/sha256"
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"encoding/hex"
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"hash"
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"io"
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)
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type Hasher struct {
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hasher hash.Hash
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}
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func NewHasher() *Hasher {
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return &Hasher{
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hasher: sha256.New(),
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}
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}
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func (ha *Hasher) Writer() io.Writer {
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return ha.hasher
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}
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func (ha *Hasher) Hex() string {
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data := ha.hasher.Sum(nil)
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res := hex.EncodeToString(data)
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return "sha256:" + res
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}
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func (ha *Hasher) Verify(hash string) bool {
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return hash == ha.Hex()
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}
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