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53c014a0bb
Avoid serializing payload again and again for various purposes. To sign it, we only need a hash. Some 2.4% gain in TPS could be achieved with this.
39 lines
927 B
Go
39 lines
927 B
Go
package crypto
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import (
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"github.com/nspcc-dev/neo-go/pkg/core/interop"
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"github.com/nspcc-dev/neo-go/pkg/crypto"
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"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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)
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// Sha256 returns sha256 hash of the data.
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func Sha256(ic *interop.Context) error {
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h, err := getMessageHash(ic, ic.VM.Estack().Pop().Item())
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if err != nil {
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return err
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}
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ic.VM.Estack().PushVal(h.BytesBE())
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return nil
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}
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// RipeMD160 returns RipeMD160 hash of the data.
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func RipeMD160(ic *interop.Context) error {
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var msg []byte
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item := ic.VM.Estack().Pop().Item()
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switch val := item.(type) {
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case *stackitem.Interop:
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msg = val.Value().(crypto.Verifiable).GetSignedPart()
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case stackitem.Null:
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msg = ic.Container.GetSignedPart()
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default:
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var err error
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if msg, err = val.TryBytes(); err != nil {
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return err
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}
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}
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h := hash.RipeMD160(msg).BytesBE()
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ic.VM.Estack().PushVal(h)
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return nil
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}
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