예제 #1
0
파일: Program.cs 프로젝트: relianz/jwt
        }     // SecurityKeyFromPemFile.

        private static void CompareSha256Implementations(string source)
        {
            int len = source.Length;

            WriteLine($"\nSource string to be SHA-256 hashed: <{source}> ({len})");

            string hashA;
            string hashB;

            // Compute hash using .NET Core implemenatation:
            using (SHA256 sha256Hash = SHA256.Create())
            {
                hashA = GetHash(sha256Hash, source);
                WriteLine($"The .NET Core SHA256 class hash is: <{hashA}>");
            }

            // Compute hash using in source implemenatation:
            hashB = Sha2.GetHash(source);
            WriteLine($"The in source implemented hash is:  <{hashB}>");
        } // CompareSha256Implementations.
예제 #2
0
파일: Program.cs 프로젝트: relianz/jwt
        } // CompareSha256Implementations.

        private static void SeekForSha2ForbiddenStringLength(int lower, int upper)
        {
            WriteLine($"\nSeeking for Sha2 forbidden string lengths ({lower},{upper}):");
            int found = 0;

            for (int len = lower; len <= upper; len++)
            {
                // generate random string of given length:
                string source = RandomString(len);

                string hashA;
                string hashB;

                // Compute hash using .NET Core implemenatation:
                using (SHA256 sha256Hash = SHA256.Create()) {
                    hashA = GetHash(sha256Hash, source);
                }

                // Compute hash using in source implemenatation:
                hashB = Sha2.GetHash(source);

                // Compare resualts:
                if (!String.Equals(hashA, hashB))
                {
                    // Report forbidden string length:
                    Write($"{len} ");
                    if (++found % 8 == 0)
                    {
                        WriteLine();
                    }
                }
            } // for.

            if (found == 0)
            {
                WriteLine($"No forbidden string length found.");
            }
        } // SeekForForbiddenStringLength.