21 lines
666 B
C#
21 lines
666 B
C#
using ASodium;
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namespace ExtraChat.Util;
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internal static class SecretBox {
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internal static byte[] Encrypt(byte[] key, byte[] bytes) {
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var nonce = SodiumSecretBoxXChaCha20Poly1305.GenerateNonce();
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var ciphertext = SodiumSecretBoxXChaCha20Poly1305.Create(bytes, nonce, key);
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return nonce.Concat(ciphertext);
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}
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internal static byte[] Decrypt(byte[] key, byte[] bytes) {
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var nonceLength = SodiumSecretBoxXChaCha20Poly1305.GetNonceBytesLength();
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var nonce = bytes[..nonceLength];
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var ciphertext = bytes[nonceLength..];
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return SodiumSecretBoxXChaCha20Poly1305.Open(ciphertext, nonce, key);
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}
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}
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