diff options
Diffstat (limited to 'ffi/cs/bls.cs')
| -rw-r--r-- | ffi/cs/bls.cs | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/ffi/cs/bls.cs b/ffi/cs/bls.cs new file mode 100644 index 0000000..417550a --- /dev/null +++ b/ffi/cs/bls.cs @@ -0,0 +1,305 @@ +þ½Ž¿using System; +using System.Text; +using System.Runtime.InteropServices; + +namespace mcl { + class BLS { + public const int BN254 = 0; + public const int BLS12_381 = 5; + + const int IoEcComp = 512; // fixed byte representation + public const int FR_UNIT_SIZE = 4; + public const int FP_UNIT_SIZE = 6; // 4 if bls256.dll is used + public const int COMPILED_TIME_VAR = FR_UNIT_SIZE * 10 + FP_UNIT_SIZE; + + public const int ID_UNIT_SIZE = FR_UNIT_SIZE; + public const int SECRETKEY_UNIT_SIZE = FR_UNIT_SIZE; + public const int PUBLICKEY_UNIT_SIZE = FP_UNIT_SIZE * 3 * 2; + public const int SIGNATURE_UNIT_SIZE = FP_UNIT_SIZE * 3; + + public const string dllName = FP_UNIT_SIZE == 4 ? "bls256.dll" : "bls384_256.dll"; + [DllImport(dllName)] + public static extern int blsInit(int curveType, int compiledTimeVar); + + [DllImport(dllName)] public static extern void blsIdSetInt(ref Id id, int x); + [DllImport(dllName)] public static extern int blsIdSetDecStr(ref Id id, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + [DllImport(dllName)] public static extern int blsIdSetHexStr(ref Id id, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + [DllImport(dllName)] public static extern ulong blsIdGetDecStr([Out]StringBuilder buf, ulong maxBufSize, in Id id); + [DllImport(dllName)] public static extern ulong blsIdGetHexStr([Out]StringBuilder buf, ulong maxBufSize, in Id id); + + [DllImport(dllName)] public static extern ulong blsIdSerialize([Out]StringBuilder buf, ulong maxBufSize, in Id id); + [DllImport(dllName)] public static extern ulong blsSecretKeySerialize([Out]StringBuilder buf, ulong maxBufSize, in SecretKey sec); + [DllImport(dllName)] public static extern ulong blsPublicKeySerialize([Out]StringBuilder buf, ulong maxBufSize, in PublicKey pub); + [DllImport(dllName)] public static extern ulong blsSignatureSerialize([Out]StringBuilder buf, ulong maxBufSize, in Signature sig); + [DllImport(dllName)] public static extern int blsIdDeserialize(ref Id id, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + [DllImport(dllName)] public static extern int blsSecretKeyDeserialize(ref SecretKey sec, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + [DllImport(dllName)] public static extern int blsPublicKeyDeserialize(ref PublicKey pub, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + [DllImport(dllName)] public static extern int blsSignatureDeserialize(ref Signature sig, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + + [DllImport(dllName)] public static extern int blsIdIsEqual(in Id lhs, in Id rhs); + [DllImport(dllName)] public static extern int blsSecretKeyIsEqual(in SecretKey lhs, in SecretKey rhs); + [DllImport(dllName)] public static extern int blsPublicKeyIsEqual(in PublicKey lhs, in PublicKey rhs); + [DllImport(dllName)] public static extern int blsSignatureIsEqual(in Signature lhs, in Signature rhs); + // add + [DllImport(dllName)] public static extern void blsSecretKeyAdd(ref SecretKey sec, in SecretKey rhs); + [DllImport(dllName)] public static extern void blsPublicKeyAdd(ref PublicKey pub, in PublicKey rhs); + [DllImport(dllName)] public static extern void blsSignatureAdd(ref Signature sig, in Signature rhs); + // hash buf and set + [DllImport(dllName)] public static extern int blsHashToSecretKey(ref SecretKey sec, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + /* + set secretKey if system has /dev/urandom or CryptGenRandom + return 0 if success else -1 + */ + [DllImport(dllName)] public static extern int blsSecretKeySetByCSPRNG(ref SecretKey sec); + + [DllImport(dllName)] public static extern void blsGetPublicKey(ref PublicKey pub, in SecretKey sec); + [DllImport(dllName)] public static extern void blsGetPop(ref Signature sig, in SecretKey sec); + + // return 0 if success + [DllImport(dllName)] public static extern int blsSecretKeyShare(ref SecretKey sec, in SecretKey msk, ulong k, in Id id); + [DllImport(dllName)] public static extern int blsPublicKeyShare(ref PublicKey pub, in PublicKey mpk, ulong k, in Id id); + + + [DllImport(dllName)] public static extern int blsSecretKeyRecover(ref SecretKey sec, in SecretKey secVec, in Id idVec, ulong n); + [DllImport(dllName)] public static extern int blsPublicKeyRecover(ref PublicKey pub, in PublicKey pubVec, in Id idVec, ulong n); + [DllImport(dllName)] public static extern int blsSignatureRecover(ref Signature sig, in Signature sigVec, in Id idVec, ulong n); + + [DllImport(dllName)] public static extern void blsSign(ref Signature sig, in SecretKey sec, [In][MarshalAs(UnmanagedType.LPStr)] string m, ulong size); + + // return 1 if valid + [DllImport(dllName)] public static extern int blsVerify(in Signature sig, in PublicKey pub, [In][MarshalAs(UnmanagedType.LPStr)] string m, ulong size); + [DllImport(dllName)] public static extern int blsVerifyPop(in Signature sig, in PublicKey pub); + + ////////////////////////////////////////////////////////////////////////// + // the following apis will be removed + + // mask buf with (1 << (bitLen(r) - 1)) - 1 if buf >= r + [DllImport(dllName)] public static extern int blsIdSetLittleEndian(ref Id id, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + /* + return written byte size if success else 0 + */ + [DllImport(dllName)] public static extern ulong blsIdGetLittleEndian([Out]StringBuilder buf, ulong maxBufSize, in Id id); + + // return 0 if success + // mask buf with (1 << (bitLen(r) - 1)) - 1 if buf >= r + [DllImport(dllName)] public static extern int blsSecretKeySetLittleEndian(ref SecretKey sec, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + [DllImport(dllName)] public static extern int blsSecretKeySetDecStr(ref SecretKey sec, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + [DllImport(dllName)] public static extern int blsSecretKeySetHexStr(ref SecretKey sec, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + /* + return written byte size if success else 0 + */ + [DllImport(dllName)] public static extern ulong blsSecretKeyGetLittleEndian([Out]StringBuilder buf, ulong maxBufSize, in SecretKey sec); + /* + return strlen(buf) if success else 0 + buf is '\0' terminated + */ + [DllImport(dllName)] public static extern ulong blsSecretKeyGetDecStr([Out]StringBuilder buf, ulong maxBufSize, in SecretKey sec); + [DllImport(dllName)] public static extern ulong blsSecretKeyGetHexStr([Out]StringBuilder buf, ulong maxBufSize, in SecretKey sec); + [DllImport(dllName)] public static extern int blsPublicKeySetHexStr(ref PublicKey pub, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + [DllImport(dllName)] public static extern ulong blsPublicKeyGetHexStr([Out]StringBuilder buf, ulong maxBufSize, in PublicKey pub); + [DllImport(dllName)] public static extern int blsSignatureSetHexStr(ref Signature sig, [In][MarshalAs(UnmanagedType.LPStr)] string buf, ulong bufSize); + [DllImport(dllName)] public static extern ulong blsSignatureGetHexStr([Out]StringBuilder buf, ulong maxBufSize, in Signature sig); + + public static void Init(int curveType = BN254) + { + if (!System.Environment.Is64BitProcess) { + throw new PlatformNotSupportedException("not 64-bit system"); + } + int err = blsInit(curveType, COMPILED_TIME_VAR); + if (err != 0) { + throw new ArgumentException("blsInit"); + } + } + [StructLayout(LayoutKind.Sequential)] + public unsafe struct Id { + private fixed ulong v[ID_UNIT_SIZE]; + public bool IsEqual(in Id rhs) + { + return blsIdIsEqual(this, rhs) != 0; + } + public void SetDecStr(in String s) + { + if (blsIdSetDecStr(ref this, s, (ulong)s.Length) != 0) { + throw new ArgumentException("blsIdSetDecSt:" + s); + } + } + public void SetHexStr(in String s) + { + if (blsIdSetHexStr(ref this, s, (ulong)s.Length) != 0) { + throw new ArgumentException("blsIdSetHexStr:" + s); + } + } + public void SetInt(int x) + { + blsIdSetInt(ref this, x); + } + public string GetDecStr() + { + StringBuilder sb = new StringBuilder(1024); + ulong size = blsIdGetDecStr(sb, (ulong)sb.Capacity, this); + if (size == 0) { + throw new ArgumentException("blsIdGetDecStr"); + } + return sb.ToString(0, (int)size); + } + public string GetHexStr() + { + StringBuilder sb = new StringBuilder(1024); + ulong size = blsIdGetHexStr(sb, (ulong)sb.Capacity, this); + if (size == 0) { + throw new ArgumentException("blsIdGetHexStr"); + } + return sb.ToString(0, (int)size); + } + } + [StructLayout(LayoutKind.Sequential)] + public unsafe struct SecretKey { + private fixed ulong v[SECRETKEY_UNIT_SIZE]; + public bool IsEqual(in SecretKey rhs) + { + return blsSecretKeyIsEqual(this, rhs) != 0; + } + public void SetHexStr(in String s) + { + if (blsSecretKeySetHexStr(ref this, s, (ulong)s.Length) != 0) { + throw new ArgumentException("blsSecretKeySetHexStr:" + s); + } + } + public string GetHexStr() + { + StringBuilder sb = new StringBuilder(1024); + ulong size = blsSecretKeyGetHexStr(sb, (ulong)sb.Capacity, this); + if (size == 0) { + throw new ArgumentException("mclBnFr_getStr"); + } + return sb.ToString(0, (int)size); + } + public void Add(in SecretKey rhs) + { + blsSecretKeyAdd(ref this, rhs); + } + public void SetByCSPRNG() + { + blsSecretKeySetByCSPRNG(ref this); + } + public void SetHashOf(in string s) + { + if (blsHashToSecretKey(ref this, s, (ulong)s.Length) != 0) { + throw new ArgumentException("blsHashToSecretKey"); + } + } + public PublicKey GetPublicKey() + { + PublicKey pub = new PublicKey(); + blsGetPublicKey(ref pub, this); + return pub; + } + public Signature Signature(String m) + { + Signature Signature = new Signature(); + blsSign(ref Signature, this, m, (ulong)m.Length); + return Signature; + } + } + // secretKey = sum_{i=0}^{msk.Length - 1} msk[i] * id^i + public static SecretKey ShareSecretKey(in SecretKey[] msk, in Id id) + { + SecretKey sec = new SecretKey(); + if (blsSecretKeyShare(ref sec, msk[0], (ulong)msk.Length, id) != 0) { + throw new ArgumentException("GetSecretKeyForId:" + id.ToString()); + } + return sec; + } + public static SecretKey RecoverSecretKey(in SecretKey[] secs, in Id[] ids) + { + SecretKey sec = new SecretKey(); + if (blsSecretKeyRecover(ref sec, secs[0], ids[0], (ulong)secs.Length) != 0) { + throw new ArgumentException("Recover"); + } + return sec; + } + [StructLayout(LayoutKind.Sequential)] + public unsafe struct PublicKey { + private fixed ulong v[PUBLICKEY_UNIT_SIZE]; + public bool IsEqual(in PublicKey rhs) + { + return blsPublicKeyIsEqual(this, rhs) != 0; + } + public void SetStr(in String s) + { + if (blsPublicKeySetHexStr(ref this, s, (ulong)s.Length) != 0) { + throw new ArgumentException("blsPublicKeySetStr:" + s); + } + } + public string GetHexStr() + { + StringBuilder sb = new StringBuilder(1024); + ulong size = blsPublicKeyGetHexStr(sb, (ulong)sb.Capacity, this); + if (size == 0) { + throw new ArgumentException("blsPublicKeyGetStr"); + } + return sb.ToString(0, (int)size); + } + public void Add(in PublicKey rhs) + { + blsPublicKeyAdd(ref this, rhs); + } + public bool Verify(in Signature sig, in string m) + { + return blsVerify(sig, this, m, (ulong)m.Length) == 1; + } + } + // publicKey = sum_{i=0}^{mpk.Length - 1} mpk[i] * id^i + public static PublicKey SharePublicKey(in PublicKey[] mpk, in Id id) + { + PublicKey pub = new PublicKey(); + if (blsPublicKeyShare(ref pub, mpk[0], (ulong)mpk.Length, id) != 0) { + throw new ArgumentException("GetPublicKeyForId:" + id.ToString()); + } + return pub; + } + public static PublicKey RecoverPublicKey(in PublicKey[] pubs, in Id[] ids) + { + PublicKey pub = new PublicKey(); + if (blsPublicKeyRecover(ref pub, pubs[0], ids[0], (ulong)pubs.Length) != 0) { + throw new ArgumentException("Recover"); + } + return pub; + } + [StructLayout(LayoutKind.Sequential)] + public unsafe struct Signature { + private fixed ulong v[SIGNATURE_UNIT_SIZE]; + public bool IsEqual(in Signature rhs) + { + return blsSignatureIsEqual(this, rhs) != 0; + } + public void SetStr(in String s) + { + if (blsSignatureSetHexStr(ref this, s, (ulong)s.Length) != 0) { + throw new ArgumentException("blsSignatureSetStr:" + s); + } + } + public string GetHexStr() + { + StringBuilder sb = new StringBuilder(1024); + ulong size = blsSignatureGetHexStr(sb, (ulong)sb.Capacity, this); + if (size == 0) { + throw new ArgumentException("blsSignatureGetStr"); + } + return sb.ToString(0, (int)size); + } + public void Add(in Signature rhs) + { + blsSignatureAdd(ref this, rhs); + } + } + public static Signature RecoverSign(in Signature[] signs, in Id[] ids) + { + Signature Signature = new Signature(); + if (blsSignatureRecover(ref Signature, signs[0], ids[0], (ulong)signs.Length) != 0) { + throw new ArgumentException("Recover"); + } + return Signature; + } + } +} |