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package stfe
import (
"fmt"
"time"
"crypto"
"crypto/rand"
)
// genV1Sdi issues a new SignedDebugInfoV1 StItem from a serialized leaf value
func (lp *LogParameters) genV1Sdi(serialized []byte) (*StItem, error) {
sig, err := lp.Signer.Sign(rand.Reader, serialized, crypto.Hash(0)) // ed25519
if err != nil {
return nil, fmt.Errorf("ed25519 signature failed: %v", err)
}
lastSdiTimestamp.Set(float64(time.Now().Unix()), lp.id())
return NewSignedDebugInfoV1(lp.LogId, []byte("reserved"), sig), nil
}
// genV1Sth issues a new SignedTreeHeadV1 StItem from a TreeHeadV1 structure
func (lp *LogParameters) genV1Sth(th *TreeHeadV1) (*StItem, error) {
serialized, err := th.Marshal()
if err != nil {
return nil, fmt.Errorf("failed tls marshaling tree head: %v", err)
}
sig, err := lp.Signer.Sign(rand.Reader, serialized, crypto.Hash(0)) // ed25519
if err != nil {
return nil, fmt.Errorf("ed25519 signature failed: %v", err)
}
lastSthTimestamp.Set(float64(time.Now().Unix()), lp.id())
lastSthSize.Set(float64(th.TreeSize), lp.id())
return NewSignedTreeHeadV1(th, lp.LogId, sig), nil
}
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