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45 lines
1.4 KiB
Swift
45 lines
1.4 KiB
Swift
// Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
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import Foundation
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import Clibsodium
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import Sodium
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extension Sign {
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/**
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Converts an Ed25519 public key to an X25519 public key.
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- Parameter ed25519PublicKey: The Ed25519 public key to convert.
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- Returns: The X25519 public key if conversion is successful.
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*/
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public func toX25519(ed25519PublicKey: PublicKey) -> PublicKey? {
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var x25519PublicKey = PublicKey(repeating: 0, count: 32)
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// FIXME: It'd be nice to check the exit code here, but all the properties of the object
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// returned by the call below are internal.
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let _ = crypto_sign_ed25519_pk_to_curve25519 (
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&x25519PublicKey,
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ed25519PublicKey
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)
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return x25519PublicKey
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}
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/**
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Converts an Ed25519 secret key to an X25519 secret key.
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- Parameter ed25519SecretKey: The Ed25519 secret key to convert.
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- Returns: The X25519 secret key if conversion is successful.
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*/
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public func toX25519(ed25519SecretKey: SecretKey) -> SecretKey? {
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var x25519SecretKey = SecretKey(repeating: 0, count: 32)
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// FIXME: It'd be nice to check the exit code here, but all the properties of the object
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// returned by the call below are internal.
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let _ = crypto_sign_ed25519_sk_to_curve25519 (
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&x25519SecretKey,
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ed25519SecretKey
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)
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return x25519SecretKey
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}
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}
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