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comparison NaCl/APIv2.cs @ 80:4714531734b3

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NaCl: fixed signature bounds check
author Ivo Smits <Ivo@UCIS.nl>
date Sun, 16 Feb 2014 15:05:31 +0100
parents 6aca18ee4ec6
children
comparison
equal deleted inserted replaced
79:4e4c600031e2 80:4714531734b3
1 using System; 1 using System;
2 using System.Globalization; 2 using System.Globalization;
3 using UCIS.Util; 3 using UCIS.Util;
4 using curve25519xsalsa20poly1305impl = UCIS.NaCl.crypto_box.curve25519xsalsa20poly1305; 4 using curve25519xsalsa20poly1305impl = UCIS.NaCl.crypto_box.curve25519xsalsa20poly1305;
5 using ed25519impl = UCIS.NaCl.crypto_sign.ed25519;
5 using edwards25519sha512batchimpl = UCIS.NaCl.crypto_sign.edwards25519sha512batch; 6 using edwards25519sha512batchimpl = UCIS.NaCl.crypto_sign.edwards25519sha512batch;
7 using sha512impl = UCIS.NaCl.crypto_hash.sha512;
6 using xsalsa20poly1305impl = UCIS.NaCl.crypto_secretbox.xsalsa20poly1305; 8 using xsalsa20poly1305impl = UCIS.NaCl.crypto_secretbox.xsalsa20poly1305;
7 using sha512impl = UCIS.NaCl.crypto_hash.sha512;
8 using ed25519impl = UCIS.NaCl.crypto_sign.ed25519;
9 9
10 namespace UCIS.NaCl.v2 { 10 namespace UCIS.NaCl.v2 {
11 public class curve25519keypair { 11 public class curve25519keypair {
12 private Byte[] secretkey; 12 private Byte[] secretkey;
13 private Byte[] publickey = null; 13 private Byte[] publickey = null;
324 if (signature.Length < 64) throw new ArgumentException("signature"); 324 if (signature.Length < 64) throw new ArgumentException("signature");
325 if (pk.Length < 32) throw new ArgumentException("pk"); 325 if (pk.Length < 32) throw new ArgumentException("pk");
326 fixed (Byte* sp = signature, mp = message, kp = pk) return ed25519impl.crypto_sign_verify(sp, mp, message.Length, kp); 326 fixed (Byte* sp = signature, mp = message, kp = pk) return ed25519impl.crypto_sign_verify(sp, mp, message.Length, kp);
327 } 327 }
328 public static unsafe Boolean VerifySignature(ArraySegment<Byte> message, ArraySegment<Byte> signature, Byte[] pk) { 328 public static unsafe Boolean VerifySignature(ArraySegment<Byte> message, ArraySegment<Byte> signature, Byte[] pk) {
329 if (signature.Offset < 0 || signature.Count < 64 || signature.Offset + signature.Count < signature.Array.Length) throw new ArgumentException("signature"); 329 if (signature.Offset < 0 || signature.Count < 64 || signature.Offset + signature.Count > signature.Array.Length) throw new ArgumentException("signature");
330 if (message.Offset < 0 || message.Count < 0 || message.Offset + message.Count < message.Array.Length) throw new ArgumentException("message"); 330 if (message.Offset < 0 || message.Count < 0 || message.Offset + message.Count > message.Array.Length) throw new ArgumentException("message");
331 if (pk.Length < 32) throw new ArgumentException("pk"); 331 if (pk.Length < 32) throw new ArgumentException("pk");
332 fixed (Byte* sp = signature.Array, mp = message.Array, kp = pk) return ed25519impl.crypto_sign_verify(sp + signature.Offset, mp + message.Offset, message.Count, kp); 332 fixed (Byte* sp = signature.Array, mp = message.Array, kp = pk) return ed25519impl.crypto_sign_verify(sp + signature.Offset, mp + message.Offset, message.Count, kp);
333 } 333 }
334 public static unsafe Boolean VerifySignedMessage(Byte[] signedmessage, Byte[] pk) { 334 public static unsafe Boolean VerifySignedMessage(Byte[] signedmessage, Byte[] pk) {
335 if (signedmessage.Length < 64) throw new ArgumentException("signedmessage"); 335 if (signedmessage.Length < 64) throw new ArgumentException("signedmessage");