44 lines
959 B
Go
44 lines
959 B
Go
package chain
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import (
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"bytes"
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"crypto"
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"crypto/rand"
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"crypto/rsa"
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"crypto/sha256"
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"encoding/gob"
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"time"
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)
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type transaction struct {
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Src string
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Dst string
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Amount int
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Timestamp time.Time
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}
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func NewTransaction(source string, dst string, amount int) transaction {
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return transaction{Src: source, Dst: dst, Amount: amount, Timestamp: time.Now()}
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}
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func (ta transaction) SignTransaction(privKey *rsa.PrivateKey, d int) ([]byte, error) {
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return rsa.SignPKCS1v15(rand.Reader, privKey, crypto.SHA256, ta.HashTransaction())
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}
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func (ta transaction) HashTransaction() []byte {
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var buf bytes.Buffer
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gob.NewEncoder(&buf).Encode(ta)
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hash := sha256.New().Sum(buf.Bytes())
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return hash
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}
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func (ta transaction) ToBytes() []byte {
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bytes := []byte(ta.Src)
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bytes = append(bytes, []byte(ta.Dst)...)
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//fmt.Printf("%s", ta.Dst)
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bytes = append(bytes, byte(ta.Amount))
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bytes = append(bytes, []byte(ta.Timestamp.String())...)
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return bytes
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}
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