61 lines
1.9 KiB
Go
61 lines
1.9 KiB
Go
package crypto
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import (
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"git.gammaspectra.live/P2Pool/p2pool-observer/types"
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)
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var TxProofV2DomainSeparatorHash = Keccak256([]byte("TXPROOF_V2")) // HASH_KEY_TXPROOF_V2
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func GenerateTxProofV2(prefixHash types.Hash, txKey PrivateKey, recipientViewPublicKey PublicKey, recipientSpendPublicKey PublicKey) (derivation PublicKey, signature *Signature) {
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comm := &SignatureComm_2{}
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comm.Message = prefixHash
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//shared secret
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comm.KeyDerivation = txKey.GetDerivation(recipientViewPublicKey)
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comm.Separator = TxProofV2DomainSeparatorHash
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comm.TransactionPublicKey = txKey.PublicKey()
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comm.RecipientViewPublicKey = recipientViewPublicKey
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signature = CreateSignature(func(k PrivateKey) []byte {
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if recipientSpendPublicKey == nil {
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// compute RandomPublicKey = k*G
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comm.RandomPublicKey = k.PublicKey()
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comm.RecipientSpendPublicKey = nil
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} else {
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// compute RandomPublicKey = k*B
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comm.RandomPublicKey = k.GetDerivation(recipientSpendPublicKey)
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comm.RecipientSpendPublicKey = recipientSpendPublicKey
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}
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comm.RandomDerivation = k.GetDerivation(recipientViewPublicKey)
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return comm.Bytes()
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}, txKey)
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return comm.KeyDerivation, signature
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}
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func GenerateTxProofV1(prefixHash types.Hash, txKey PrivateKey, recipientViewPublicKey PublicKey, recipientSpendPublicKey PublicKey) (derivation PublicKey, signature *Signature) {
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comm := &SignatureComm_2_V1{}
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comm.Message = prefixHash
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//shared secret
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comm.KeyDerivation = txKey.GetDerivation(recipientViewPublicKey)
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signature = CreateSignature(func(k PrivateKey) []byte {
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if recipientSpendPublicKey == nil {
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// compute RandomPublicKey = k*G
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comm.RandomPublicKey = k.PublicKey()
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} else {
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// compute RandomPublicKey = k*B
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comm.RandomPublicKey = k.GetDerivation(recipientSpendPublicKey)
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}
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comm.RandomDerivation = k.GetDerivation(recipientViewPublicKey)
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return comm.Bytes()
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}, txKey)
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return comm.KeyDerivation, signature
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}
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