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24 lines
1.4 KiB
Swift
24 lines
1.4 KiB
Swift
import Sodium
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enum KeyPairUtilities {
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static func generate(from seed: Data) -> (ed25519KeyPair: Sign.KeyPair, x25519KeyPair: ECKeyPair) {
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assert(seed.count == 16)
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let padding = Data(repeating: 0, count: 16)
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let ed25519KeyPair = Sodium().sign.keyPair(seed: (seed + padding).bytes)!
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let x25519PublicKey = Sodium().sign.toX25519(ed25519PublicKey: ed25519KeyPair.publicKey)!
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let x25519SecretKey = Sodium().sign.toX25519(ed25519SecretKey: ed25519KeyPair.secretKey)!
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let x25519KeyPair = ECKeyPair(publicKey: Data(x25519PublicKey), privateKey: Data(x25519SecretKey))!
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return (ed25519KeyPair: ed25519KeyPair, x25519KeyPair: x25519KeyPair)
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}
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static func store(seed: Data, ed25519KeyPair: Sign.KeyPair, x25519KeyPair: ECKeyPair) {
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let dbConnection = OWSIdentityManager.shared().dbConnection
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let collection = OWSPrimaryStorageIdentityKeyStoreCollection
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dbConnection.setObject(seed.toHexString(), forKey: LKSeedKey, inCollection: collection)
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dbConnection.setObject(ed25519KeyPair.secretKey.toHexString(), forKey: LKED25519SecretKey, inCollection: collection)
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dbConnection.setObject(ed25519KeyPair.publicKey.toHexString(), forKey: LKED25519PublicKey, inCollection: collection)
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dbConnection.setObject(x25519KeyPair, forKey: OWSPrimaryStorageIdentityKeyStoreIdentityKey, inCollection: collection)
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}
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}
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