func extractEnvelopeInfo(ctx context.Context, env string, passphrase string) (result envelopeInfo, err error) {
var tx xdr.TransactionEnvelope
err = xdr.SafeUnmarshalBase64(env, &tx)
if err != nil {
err = &MalformedTransactionError{env}
return
}
txb := build.TransactionBuilder{TX: &tx.Tx}
txb.Mutate(build.Network{passphrase})
result.Hash, err = txb.HashHex()
if err != nil {
return
}
result.Sequence = uint64(tx.Tx.SeqNum)
aid := tx.Tx.SourceAccount.MustEd25519()
result.SourceAddress, err = strkey.Encode(strkey.VersionByteAccountID, aid[:])
return
}
// FromRawSeed creates a new keypair from the provided raw ED25519 seed:w
func FromRawSeed(rawSeed [32]byte) (KP, error) {
seed, err := strkey.Encode(strkey.VersionByteSeed, rawSeed[:])
if err != nil {
return nil, err
}
return &Full{seed}, nil
}