ModernUO/Projects/Argon2/Argon2.cs
2020-05-25 23:45:53 -07:00

111 lines
4.6 KiB
C#

using System.Runtime.InteropServices;
namespace System.Security.Cryptography
{
internal interface IArgon2
{
public Argon2Error Hash(uint t_cost, uint m_cost, uint parallelism,
ReadOnlySpan<byte> pwd,
ReadOnlySpan<byte> salt,
Span<byte> hash,
Span<byte> encoded,
int type, int version);
Argon2Error Verify(ReadOnlySpan<byte> encoded, ReadOnlySpan<byte> pwd, int pwdlen, int type);
// TODO: Change str to use ReadOnlySpan<char> then convert to pointer later
Argon2Error Decode(Argon2Context ctx, ReadOnlySpan<byte> str, int type);
}
internal static class Argon2
{
internal static readonly bool IsDarwin = RuntimeInformation.IsOSPlatform(OSPlatform.OSX);
internal static readonly bool IsFreeBSD = RuntimeInformation.IsOSPlatform(OSPlatform.FreeBSD);
internal static readonly bool IsLinux = RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
internal static readonly bool IsUnix = IsLinux || IsDarwin || IsFreeBSD;
internal static readonly IArgon2 Library = IsUnix ? (IArgon2)new UnixArgon2() : new WindowsArgon2();
}
internal class WindowsArgon2 : IArgon2
{
public Argon2Error Hash(uint t_cost, uint m_cost, uint parallelism,
ReadOnlySpan<byte> pwd,
ReadOnlySpan<byte> salt,
Span<byte> hash,
Span<byte> encoded,
int type, int version) =>
SafeNativeMethods.argon2_hash(t_cost, m_cost, parallelism,
in pwd.GetPinnableReference(), pwd.Length,
in salt.GetPinnableReference(), salt.Length,
ref hash.GetPinnableReference(), hash.Length,
ref encoded.GetPinnableReference(), encoded.Length,
type, version
);
public Argon2Error Verify(ReadOnlySpan<byte> encoded, ReadOnlySpan<byte> pwd, int pwdlen, int type) =>
SafeNativeMethods.argon2_verify(in encoded.GetPinnableReference(), in pwd.GetPinnableReference(), pwdlen, type);
public Argon2Error Decode(Argon2Context ctx, ReadOnlySpan<byte> str, int type) =>
SafeNativeMethods.decode_string(ctx, in str.GetPinnableReference(), type);
internal static class SafeNativeMethods
{
[DllImport("libargon2.dll", EntryPoint = "argon2_hash", CallingConvention = CallingConvention.Cdecl)]
internal static extern Argon2Error argon2_hash(uint t_cost, uint m_cost, uint parallelism,
in byte pwd, int pwdlen,
in byte salt, int saltlen,
ref byte hash, int hashlen,
ref byte encoded, int encodedlen,
int type, int version
);
[DllImport("libargon2.dll", EntryPoint = "argon2_verify", CallingConvention = CallingConvention.Cdecl)]
internal static extern Argon2Error argon2_verify(in byte encoded, in byte pwd, int pwdlen, int type);
[DllImport("libargon2.dll", EntryPoint = "decode_string", CallingConvention = CallingConvention.Cdecl)]
internal static extern Argon2Error decode_string(Argon2Context ctx, in byte str, int type);
}
}
internal class UnixArgon2 : IArgon2
{
public Argon2Error Hash(uint t_cost, uint m_cost, uint parallelism,
ReadOnlySpan<byte> pwd,
ReadOnlySpan<byte> salt,
Span<byte> hash,
Span<byte> encoded,
int type, int version) =>
SafeNativeMethods.argon2_hash(t_cost, m_cost, parallelism,
in pwd.GetPinnableReference(), pwd.Length,
in salt.GetPinnableReference(), salt.Length,
ref hash.GetPinnableReference(), hash.Length,
ref encoded.GetPinnableReference(), encoded.Length,
type, version
);
public Argon2Error Verify(ReadOnlySpan<byte> encoded, ReadOnlySpan<byte> pwd, int pwdlen, int type) =>
SafeNativeMethods.argon2_verify(in encoded.GetPinnableReference(), in pwd.GetPinnableReference(), pwdlen, type);
public Argon2Error Decode(Argon2Context ctx, ReadOnlySpan<byte> str, int type) =>
SafeNativeMethods.decode_string(ctx, in str.GetPinnableReference(), type);
internal static class SafeNativeMethods
{
[DllImport("argon2", EntryPoint = "argon2_hash")]
internal static extern Argon2Error argon2_hash(uint t_cost, uint m_cost, uint parallelism,
in byte pwd, int pwdlen,
in byte salt, int saltlen,
ref byte hash, int hashlen,
ref byte encoded, int encodedlen,
int type, int version
);
[DllImport("argon2", EntryPoint = "argon2_verify")]
internal static extern Argon2Error argon2_verify(in byte encoded, in byte pwd, int pwdlen, int type);
[DllImport("argon2", EntryPoint = "decode_string")]
internal static extern Argon2Error decode_string(Argon2Context ctx, in byte str, int type);
}
}
}