27f33f809b
- AesEncryption: AES-256-CBC 암호화/복호화 - RsaEncryption: RSA-2048 키 쌍 생성/암복호화 - E2EEService: 하이브리드 암복호화 (요청 복호화, 응답 암호화) - TimestampValidator: 타임스탬프 검증 (±30초) - SecureTransportAttribute: Action Filter (보안등급 3 엔드포인트용) - DI 등록: IE2EEService → E2EEService (Singleton) Closes #28
33 lines
1.0 KiB
C#
33 lines
1.0 KiB
C#
using System.Security.Cryptography;
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namespace SPMS.Infrastructure.Security;
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public static class RsaEncryption
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{
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public static byte[] Decrypt(byte[] encryptedData, string privateKeyPem)
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{
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using var rsa = RSA.Create();
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rsa.ImportFromPem(privateKeyPem);
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return rsa.Decrypt(encryptedData, RSAEncryptionPadding.OaepSHA256);
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}
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public static byte[] Encrypt(byte[] data, string publicKeyPem)
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{
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using var rsa = RSA.Create();
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rsa.ImportFromPem(publicKeyPem);
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return rsa.Encrypt(data, RSAEncryptionPadding.OaepSHA256);
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}
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public static (string PublicKeyPem, string PrivateKeyPem) GenerateKeyPair()
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{
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using var rsa = RSA.Create(2048);
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var privateKey = rsa.ExportRSAPrivateKey();
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var publicKey = rsa.ExportRSAPublicKey();
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var privatePem = new string(PemEncoding.Write("RSA PRIVATE KEY", privateKey));
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var publicPem = new string(PemEncoding.Write("RSA PUBLIC KEY", publicKey));
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return (publicPem, privatePem);
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}
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}
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