34 lines
909 B
Go
34 lines
909 B
Go
package devnet
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import (
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"crypto/ecdsa"
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"crypto/elliptic"
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mathrand "math/rand"
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"github.com/libp2p/go-libp2p-core/crypto"
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)
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// DeterministicEcdsaKeyByIndex generates a deterministic ecdsa.PrivateKey from a given index.
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func DeterministicEcdsaKeyByIndex(c elliptic.Curve, idx uint64) *ecdsa.PrivateKey {
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// use 555 as offset to deterministically generate key 0 to match vaa-test such that
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// we generate the same key.
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r := mathrand.New(mathrand.NewSource(int64(555 + idx)))
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key, err := ecdsa.GenerateKey(c, r)
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if err != nil {
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panic(err)
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}
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return key
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}
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// DeterministicP2PPrivKeyByIndex generates a deterministic libp2p crypto.PrivateKey from a given index.
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func DeterministicP2PPrivKeyByIndex(idx int64) crypto.PrivKey {
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r := mathrand.New(mathrand.NewSource(int64(idx)))
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priv, _, err := crypto.GenerateKeyPairWithReader(crypto.Ed25519, -1, r)
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if err != nil {
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panic(err)
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}
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return priv
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}
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