1 files changed, 107 insertions, 0 deletions
diff --git a/Crypto/src/util/Strings.cs b/Crypto/src/util/Strings.cs
new file mode 100644
index 000000000..1d35920c9
--- /dev/null
+++ b/Crypto/src/util/Strings.cs
@@ -0,0 +1,107 @@
+using System;
+using System.Text;
+
+namespace Org.BouncyCastle.Utilities
+{
+ /// <summary> General string utilities.</summary>
+ public sealed class Strings
+ {
+ private Strings()
+ {
+ }
+
+ internal static bool IsOneOf(string s, params string[] candidates)
+ {
+ foreach (string candidate in candidates)
+ {
+ if (s == candidate)
+ return true;
+ }
+ return false;
+ }
+
+ public static string FromByteArray(
+ byte[] bs)
+ {
+ char[] cs = new char[bs.Length];
+ for (int i = 0; i < cs.Length; ++i)
+ {
+ cs[i] = Convert.ToChar(bs[i]);
+ }
+ return new string(cs);
+ }
+
+ public static byte[] ToByteArray(
+ char[] cs)
+ {
+ byte[] bs = new byte[cs.Length];
+ for (int i = 0; i < bs.Length; ++i)
+ {
+ bs[i] = Convert.ToByte(cs[i]);
+ }
+ return bs;
+ }
+
+ public static byte[] ToByteArray(
+ string s)
+ {
+ byte[] bs = new byte[s.Length];
+ for (int i = 0; i < bs.Length; ++i)
+ {
+ bs[i] = Convert.ToByte(s[i]);
+ }
+ return bs;
+ }
+
+ public static string FromAsciiByteArray(
+ byte[] bytes)
+ {
+#if (SILVERLIGHT || PORTABLE)
+ // TODO Check for non-ASCII bytes in input?
+ return Encoding.UTF8.GetString(bytes, 0, bytes.Length);
+#else
+ return Encoding.ASCII.GetString(bytes, 0, bytes.Length);
+#endif
+ }
+
+ public static byte[] ToAsciiByteArray(
+ char[] cs)
+ {
+#if SILVERLIGHT || PORTABLE
+ // TODO Check for non-ASCII characters in input?
+ return Encoding.UTF8.GetBytes(cs);
+#else
+ return Encoding.ASCII.GetBytes(cs);
+#endif
+ }
+
+ public static byte[] ToAsciiByteArray(
+ string s)
+ {
+#if SILVERLIGHT || PORTABLE
+ // TODO Check for non-ASCII characters in input?
+ return Encoding.UTF8.GetBytes(s);
+#else
+ return Encoding.ASCII.GetBytes(s);
+#endif
+ }
+
+ public static string FromUtf8ByteArray(
+ byte[] bytes)
+ {
+ return Encoding.UTF8.GetString(bytes, 0, bytes.Length);
+ }
+
+ public static byte[] ToUtf8ByteArray(
+ char[] cs)
+ {
+ return Encoding.UTF8.GetBytes(cs);
+ }
+
+ public static byte[] ToUtf8ByteArray(
+ string s)
+ {
+ return Encoding.UTF8.GetBytes(s);
+ }
+ }
+}
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