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authorPeter Dettman <peter.dettman@bouncycastle.org>2019-09-09 15:52:36 +0700
committerPeter Dettman <peter.dettman@bouncycastle.org>2019-09-09 15:52:36 +0700
commit71a58e93463e0a7e4f277069f9e133a98a9a8bcb (patch)
treeb14b3c28149ece39a59bf14d6f2d45bed7774dcd /crypto/src/asn1/teletrust
parentAdd sanity checks on scalar mult. outputs (diff)
downloadBouncyCastle.NET-ed25519-71a58e93463e0a7e4f277069f9e133a98a9a8bcb.tar.xz
Port of strict hex decoding from bc-java
Diffstat (limited to 'crypto/src/asn1/teletrust')
-rw-r--r--crypto/src/asn1/teletrust/TeleTrusTNamedCurves.cs161
1 files changed, 83 insertions, 78 deletions
diff --git a/crypto/src/asn1/teletrust/TeleTrusTNamedCurves.cs b/crypto/src/asn1/teletrust/TeleTrusTNamedCurves.cs
index 8393f3ea5..c9a1e7d76 100644
--- a/crypto/src/asn1/teletrust/TeleTrusTNamedCurves.cs
+++ b/crypto/src/asn1/teletrust/TeleTrusTNamedCurves.cs
@@ -18,7 +18,7 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
     {
         private static X9ECPoint ConfigureBasepoint(ECCurve curve, string encoding)
         {
-            X9ECPoint G = new X9ECPoint(curve, Hex.Decode(encoding));
+            X9ECPoint G = new X9ECPoint(curve, Hex.DecodeStrict(encoding));
             WNafUtilities.ConfigureBasepoint(G.Point);
             return G;
         }
@@ -28,6 +28,11 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
             return curve;
         }
 
+        private static BigInteger FromHex(string hex)
+        {
+            return new BigInteger(1, Hex.DecodeStrict(hex));
+        }
+
         internal class BrainpoolP160r1Holder
             : X9ECParametersHolder
         {
@@ -37,13 +42,13 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("E95E4A5F737059DC60DF5991D45029409E60FC09", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("E95E4A5F737059DC60DF5991D45029409E60FC09");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    new BigInteger("E95E4A5F737059DC60DFC7AD95B3D8139515620F", 16), // q
-                    new BigInteger("340E7BE2A280EB74E2BE61BADA745D97E8F7C300", 16), // a
-                    new BigInteger("1E589A8595423412134FAA2DBDEC95C8D8675E58", 16), // b
+                    FromHex("E95E4A5F737059DC60DFC7AD95B3D8139515620F"), // q
+                    FromHex("340E7BE2A280EB74E2BE61BADA745D97E8F7C300"), // a
+                    FromHex("1E589A8595423412134FAA2DBDEC95C8D8675E58"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -62,14 +67,14 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("E95E4A5F737059DC60DF5991D45029409E60FC09", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("E95E4A5F737059DC60DF5991D45029409E60FC09");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    //new BigInteger("24DBFF5DEC9B986BBFE5295A29BFBAE45E0F5D0B", 16), // Z
-                    new BigInteger("E95E4A5F737059DC60DFC7AD95B3D8139515620F", 16), // q
-                    new BigInteger("E95E4A5F737059DC60DFC7AD95B3D8139515620C", 16), // a'
-                    new BigInteger("7A556B6DAE535B7B51ED2C4D7DAA7A0B5C55F380", 16), // b'
+                    //FromHex("24DBFF5DEC9B986BBFE5295A29BFBAE45E0F5D0B"), // Z
+                    FromHex("E95E4A5F737059DC60DFC7AD95B3D8139515620F"), // q
+                    FromHex("E95E4A5F737059DC60DFC7AD95B3D8139515620C"), // a
+                    FromHex("7A556B6DAE535B7B51ED2C4D7DAA7A0B5C55F380"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -88,13 +93,13 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("C302F41D932A36CDA7A3462F9E9E916B5BE8F1029AC4ACC1", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("C302F41D932A36CDA7A3462F9E9E916B5BE8F1029AC4ACC1");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    new BigInteger("C302F41D932A36CDA7A3463093D18DB78FCE476DE1A86297", 16), // q
-                    new BigInteger("6A91174076B1E0E19C39C031FE8685C1CAE040E5C69A28EF", 16), // a
-                    new BigInteger("469A28EF7C28CCA3DC721D044F4496BCCA7EF4146FBF25C9", 16), // b
+                    FromHex("C302F41D932A36CDA7A3463093D18DB78FCE476DE1A86297"), // q
+                    FromHex("6A91174076B1E0E19C39C031FE8685C1CAE040E5C69A28EF"), // a
+                    FromHex("469A28EF7C28CCA3DC721D044F4496BCCA7EF4146FBF25C9"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -113,14 +118,14 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("C302F41D932A36CDA7A3462F9E9E916B5BE8F1029AC4ACC1", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("C302F41D932A36CDA7A3462F9E9E916B5BE8F1029AC4ACC1");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    //new BigInteger("1B6F5CC8DB4DC7AF19458A9CB80DC2295E5EB9C3732104CB") //Z
-                    new BigInteger("C302F41D932A36CDA7A3463093D18DB78FCE476DE1A86297", 16), // q
-                    new BigInteger("C302F41D932A36CDA7A3463093D18DB78FCE476DE1A86294", 16), // a'
-                    new BigInteger("13D56FFAEC78681E68F9DEB43B35BEC2FB68542E27897B79", 16), // b'
+                    //FromHex("1B6F5CC8DB4DC7AF19458A9CB80DC2295E5EB9C3732104CB") // Z
+                    FromHex("C302F41D932A36CDA7A3463093D18DB78FCE476DE1A86297"), // q
+                    FromHex("C302F41D932A36CDA7A3463093D18DB78FCE476DE1A86294"), // a
+                    FromHex("13D56FFAEC78681E68F9DEB43B35BEC2FB68542E27897B79"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -139,13 +144,13 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("D7C134AA264366862A18302575D0FB98D116BC4B6DDEBCA3A5A7939F", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("D7C134AA264366862A18302575D0FB98D116BC4B6DDEBCA3A5A7939F");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    new BigInteger("D7C134AA264366862A18302575D1D787B09F075797DA89F57EC8C0FF", 16), // q
-                    new BigInteger("68A5E62CA9CE6C1C299803A6C1530B514E182AD8B0042A59CAD29F43", 16), // a
-                    new BigInteger("2580F63CCFE44138870713B1A92369E33E2135D266DBB372386C400B", 16), // b
+                    FromHex("D7C134AA264366862A18302575D1D787B09F075797DA89F57EC8C0FF"), // q
+                    FromHex("68A5E62CA9CE6C1C299803A6C1530B514E182AD8B0042A59CAD29F43"), // a
+                    FromHex("2580F63CCFE44138870713B1A92369E33E2135D266DBB372386C400B"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -164,14 +169,14 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("D7C134AA264366862A18302575D0FB98D116BC4B6DDEBCA3A5A7939F", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("D7C134AA264366862A18302575D0FB98D116BC4B6DDEBCA3A5A7939F");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    //new BigInteger("2DF271E14427A346910CF7A2E6CFA7B3F484E5C2CCE1C8B730E28B3F") //Z
-                    new BigInteger("D7C134AA264366862A18302575D1D787B09F075797DA89F57EC8C0FF", 16), // q
-                    new BigInteger("D7C134AA264366862A18302575D1D787B09F075797DA89F57EC8C0FC", 16), // a'
-                    new BigInteger("4B337D934104CD7BEF271BF60CED1ED20DA14C08B3BB64F18A60888D", 16), // b'
+                    //FromHex("2DF271E14427A346910CF7A2E6CFA7B3F484E5C2CCE1C8B730E28B3F") // Z
+                    FromHex("D7C134AA264366862A18302575D1D787B09F075797DA89F57EC8C0FF"), // q
+                    FromHex("D7C134AA264366862A18302575D1D787B09F075797DA89F57EC8C0FC"), // a
+                    FromHex("4B337D934104CD7BEF271BF60CED1ED20DA14C08B3BB64F18A60888D"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -190,13 +195,13 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("A9FB57DBA1EEA9BC3E660A909D838D718C397AA3B561A6F7901E0E82974856A7", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("A9FB57DBA1EEA9BC3E660A909D838D718C397AA3B561A6F7901E0E82974856A7");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    new BigInteger("A9FB57DBA1EEA9BC3E660A909D838D726E3BF623D52620282013481D1F6E5377", 16), // q
-                    new BigInteger("7D5A0975FC2C3057EEF67530417AFFE7FB8055C126DC5C6CE94A4B44F330B5D9", 16), // a
-                    new BigInteger("26DC5C6CE94A4B44F330B5D9BBD77CBF958416295CF7E1CE6BCCDC18FF8C07B6", 16), // b
+                    FromHex("A9FB57DBA1EEA9BC3E660A909D838D726E3BF623D52620282013481D1F6E5377"), // q
+                    FromHex("7D5A0975FC2C3057EEF67530417AFFE7FB8055C126DC5C6CE94A4B44F330B5D9"), // a
+                    FromHex("26DC5C6CE94A4B44F330B5D9BBD77CBF958416295CF7E1CE6BCCDC18FF8C07B6"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -215,14 +220,14 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("A9FB57DBA1EEA9BC3E660A909D838D718C397AA3B561A6F7901E0E82974856A7", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("A9FB57DBA1EEA9BC3E660A909D838D718C397AA3B561A6F7901E0E82974856A7");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    //new BigInteger("3E2D4BD9597B58639AE7AA669CAB9837CF5CF20A2C852D10F655668DFC150EF0") //Z
-                    new BigInteger("A9FB57DBA1EEA9BC3E660A909D838D726E3BF623D52620282013481D1F6E5377", 16), // q
-                    new BigInteger("A9FB57DBA1EEA9BC3E660A909D838D726E3BF623D52620282013481D1F6E5374", 16), // a'
-                    new BigInteger("662C61C430D84EA4FE66A7733D0B76B7BF93EBC4AF2F49256AE58101FEE92B04", 16), // b'
+                    //FromHex("3E2D4BD9597B58639AE7AA669CAB9837CF5CF20A2C852D10F655668DFC150EF0") // Z
+                    FromHex("A9FB57DBA1EEA9BC3E660A909D838D726E3BF623D52620282013481D1F6E5377"), // q
+                    FromHex("A9FB57DBA1EEA9BC3E660A909D838D726E3BF623D52620282013481D1F6E5374"), // a
+                    FromHex("662C61C430D84EA4FE66A7733D0B76B7BF93EBC4AF2F49256AE58101FEE92B04"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -241,13 +246,13 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("D35E472036BC4FB7E13C785ED201E065F98FCFA5B68F12A32D482EC7EE8658E98691555B44C59311", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("D35E472036BC4FB7E13C785ED201E065F98FCFA5B68F12A32D482EC7EE8658E98691555B44C59311");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    new BigInteger("D35E472036BC4FB7E13C785ED201E065F98FCFA6F6F40DEF4F92B9EC7893EC28FCD412B1F1B32E27", 16), // q
-                    new BigInteger("3EE30B568FBAB0F883CCEBD46D3F3BB8A2A73513F5EB79DA66190EB085FFA9F492F375A97D860EB4", 16), // a
-                    new BigInteger("520883949DFDBC42D3AD198640688A6FE13F41349554B49ACC31DCCD884539816F5EB4AC8FB1F1A6", 16), // b
+                    FromHex("D35E472036BC4FB7E13C785ED201E065F98FCFA6F6F40DEF4F92B9EC7893EC28FCD412B1F1B32E27"), // q
+                    FromHex("3EE30B568FBAB0F883CCEBD46D3F3BB8A2A73513F5EB79DA66190EB085FFA9F492F375A97D860EB4"), // a
+                    FromHex("520883949DFDBC42D3AD198640688A6FE13F41349554B49ACC31DCCD884539816F5EB4AC8FB1F1A6"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -266,14 +271,14 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("D35E472036BC4FB7E13C785ED201E065F98FCFA5B68F12A32D482EC7EE8658E98691555B44C59311", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("D35E472036BC4FB7E13C785ED201E065F98FCFA5B68F12A32D482EC7EE8658E98691555B44C59311");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    //new BigInteger("15F75CAF668077F7E85B42EB01F0A81FF56ECD6191D55CB82B7D861458A18FEFC3E5AB7496F3C7B1") //Z
-                    new BigInteger("D35E472036BC4FB7E13C785ED201E065F98FCFA6F6F40DEF4F92B9EC7893EC28FCD412B1F1B32E27", 16), // q
-                    new BigInteger("D35E472036BC4FB7E13C785ED201E065F98FCFA6F6F40DEF4F92B9EC7893EC28FCD412B1F1B32E24", 16), // a'
-                    new BigInteger("A7F561E038EB1ED560B3D147DB782013064C19F27ED27C6780AAF77FB8A547CEB5B4FEF422340353", 16), // b'
+                    //FromHex("15F75CAF668077F7E85B42EB01F0A81FF56ECD6191D55CB82B7D861458A18FEFC3E5AB7496F3C7B1") // Z
+                    FromHex("D35E472036BC4FB7E13C785ED201E065F98FCFA6F6F40DEF4F92B9EC7893EC28FCD412B1F1B32E27"), // q
+                    FromHex("D35E472036BC4FB7E13C785ED201E065F98FCFA6F6F40DEF4F92B9EC7893EC28FCD412B1F1B32E24"), // a
+                    FromHex("A7F561E038EB1ED560B3D147DB782013064C19F27ED27C6780AAF77FB8A547CEB5B4FEF422340353"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -292,13 +297,13 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("8CB91E82A3386D280F5D6F7E50E641DF152F7109ED5456B31F166E6CAC0425A7CF3AB6AF6B7FC3103B883202E9046565", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("8CB91E82A3386D280F5D6F7E50E641DF152F7109ED5456B31F166E6CAC0425A7CF3AB6AF6B7FC3103B883202E9046565");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    new BigInteger("8CB91E82A3386D280F5D6F7E50E641DF152F7109ED5456B412B1DA197FB71123ACD3A729901D1A71874700133107EC53", 16), // q
-                    new BigInteger("7BC382C63D8C150C3C72080ACE05AFA0C2BEA28E4FB22787139165EFBA91F90F8AA5814A503AD4EB04A8C7DD22CE2826", 16), // a
-                    new BigInteger("4A8C7DD22CE28268B39B55416F0447C2FB77DE107DCD2A62E880EA53EEB62D57CB4390295DBC9943AB78696FA504C11", 16), // b
+                    FromHex("8CB91E82A3386D280F5D6F7E50E641DF152F7109ED5456B412B1DA197FB71123ACD3A729901D1A71874700133107EC53"), // q
+                    FromHex("7BC382C63D8C150C3C72080ACE05AFA0C2BEA28E4FB22787139165EFBA91F90F8AA5814A503AD4EB04A8C7DD22CE2826"), // a
+                    FromHex("04A8C7DD22CE28268B39B55416F0447C2FB77DE107DCD2A62E880EA53EEB62D57CB4390295DBC9943AB78696FA504C11"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -317,14 +322,14 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("8CB91E82A3386D280F5D6F7E50E641DF152F7109ED5456B31F166E6CAC0425A7CF3AB6AF6B7FC3103B883202E9046565", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("8CB91E82A3386D280F5D6F7E50E641DF152F7109ED5456B31F166E6CAC0425A7CF3AB6AF6B7FC3103B883202E9046565");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    //new BigInteger("41DFE8DD399331F7166A66076734A89CD0D2BCDB7D068E44E1F378F41ECBAE97D2D63DBC87BCCDDCCC5DA39E8589291C") //Z
-                    new BigInteger("8CB91E82A3386D280F5D6F7E50E641DF152F7109ED5456B412B1DA197FB71123ACD3A729901D1A71874700133107EC53", 16), // q
-                    new BigInteger("8CB91E82A3386D280F5D6F7E50E641DF152F7109ED5456B412B1DA197FB71123ACD3A729901D1A71874700133107EC50", 16), // a'
-                    new BigInteger("7F519EADA7BDA81BD826DBA647910F8C4B9346ED8CCDC64E4B1ABD11756DCE1D2074AA263B88805CED70355A33B471EE", 16), // b'
+                    //FromHex("41DFE8DD399331F7166A66076734A89CD0D2BCDB7D068E44E1F378F41ECBAE97D2D63DBC87BCCDDCCC5DA39E8589291C") // Z
+                    FromHex("8CB91E82A3386D280F5D6F7E50E641DF152F7109ED5456B412B1DA197FB71123ACD3A729901D1A71874700133107EC53"), // q
+                    FromHex("8CB91E82A3386D280F5D6F7E50E641DF152F7109ED5456B412B1DA197FB71123ACD3A729901D1A71874700133107EC50"), // a
+                    FromHex("7F519EADA7BDA81BD826DBA647910F8C4B9346ED8CCDC64E4B1ABD11756DCE1D2074AA263B88805CED70355A33B471EE"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -343,13 +348,13 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("AADD9DB8DBE9C48B3FD4E6AE33C9FC07CB308DB3B3C9D20ED6639CCA70330870553E5C414CA92619418661197FAC10471DB1D381085DDADDB58796829CA90069", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("AADD9DB8DBE9C48B3FD4E6AE33C9FC07CB308DB3B3C9D20ED6639CCA70330870553E5C414CA92619418661197FAC10471DB1D381085DDADDB58796829CA90069");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    new BigInteger("AADD9DB8DBE9C48B3FD4E6AE33C9FC07CB308DB3B3C9D20ED6639CCA703308717D4D9B009BC66842AECDA12AE6A380E62881FF2F2D82C68528AA6056583A48F3", 16), // q
-                    new BigInteger("7830A3318B603B89E2327145AC234CC594CBDD8D3DF91610A83441CAEA9863BC2DED5D5AA8253AA10A2EF1C98B9AC8B57F1117A72BF2C7B9E7C1AC4D77FC94CA", 16), // a
-                    new BigInteger("3DF91610A83441CAEA9863BC2DED5D5AA8253AA10A2EF1C98B9AC8B57F1117A72BF2C7B9E7C1AC4D77FC94CADC083E67984050B75EBAE5DD2809BD638016F723", 16), // b
+                    FromHex("AADD9DB8DBE9C48B3FD4E6AE33C9FC07CB308DB3B3C9D20ED6639CCA703308717D4D9B009BC66842AECDA12AE6A380E62881FF2F2D82C68528AA6056583A48F3"), // q
+                    FromHex("7830A3318B603B89E2327145AC234CC594CBDD8D3DF91610A83441CAEA9863BC2DED5D5AA8253AA10A2EF1C98B9AC8B57F1117A72BF2C7B9E7C1AC4D77FC94CA"), // a
+                    FromHex("3DF91610A83441CAEA9863BC2DED5D5AA8253AA10A2EF1C98B9AC8B57F1117A72BF2C7B9E7C1AC4D77FC94CADC083E67984050B75EBAE5DD2809BD638016F723"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,
@@ -368,14 +373,14 @@ namespace Org.BouncyCastle.Asn1.TeleTrust
 
             protected override X9ECParameters CreateParameters()
             {
-                BigInteger n = new BigInteger("AADD9DB8DBE9C48B3FD4E6AE33C9FC07CB308DB3B3C9D20ED6639CCA70330870553E5C414CA92619418661197FAC10471DB1D381085DDADDB58796829CA90069", 16);
-                BigInteger h = new BigInteger("01", 16);
+                BigInteger n = FromHex("AADD9DB8DBE9C48B3FD4E6AE33C9FC07CB308DB3B3C9D20ED6639CCA70330870553E5C414CA92619418661197FAC10471DB1D381085DDADDB58796829CA90069");
+                BigInteger h = BigInteger.One;
 
                 ECCurve curve = ConfigureCurve(new FpCurve(
-                    //new BigInteger("12EE58E6764838B69782136F0F2D3BA06E27695716054092E60A80BEDB212B64E585D90BCE13761F85C3F1D2A64E3BE8FEA2220F01EBA5EEB0F35DBD29D922AB") //Z
-                    new BigInteger("AADD9DB8DBE9C48B3FD4E6AE33C9FC07CB308DB3B3C9D20ED6639CCA703308717D4D9B009BC66842AECDA12AE6A380E62881FF2F2D82C68528AA6056583A48F3", 16), // q
-                    new BigInteger("AADD9DB8DBE9C48B3FD4E6AE33C9FC07CB308DB3B3C9D20ED6639CCA703308717D4D9B009BC66842AECDA12AE6A380E62881FF2F2D82C68528AA6056583A48F0", 16), // a'
-                    new BigInteger("7CBBBCF9441CFAB76E1890E46884EAE321F70C0BCB4981527897504BEC3E36A62BCDFA2304976540F6450085F2DAE145C22553B465763689180EA2571867423E", 16), // b'
+                    //FromHex("12EE58E6764838B69782136F0F2D3BA06E27695716054092E60A80BEDB212B64E585D90BCE13761F85C3F1D2A64E3BE8FEA2220F01EBA5EEB0F35DBD29D922AB") // Z
+                    FromHex("AADD9DB8DBE9C48B3FD4E6AE33C9FC07CB308DB3B3C9D20ED6639CCA703308717D4D9B009BC66842AECDA12AE6A380E62881FF2F2D82C68528AA6056583A48F3"), // q
+                    FromHex("AADD9DB8DBE9C48B3FD4E6AE33C9FC07CB308DB3B3C9D20ED6639CCA703308717D4D9B009BC66842AECDA12AE6A380E62881FF2F2D82C68528AA6056583A48F0"), // a
+                    FromHex("7CBBBCF9441CFAB76E1890E46884EAE321F70C0BCB4981527897504BEC3E36A62BCDFA2304976540F6450085F2DAE145C22553B465763689180EA2571867423E"), // b
                     n, h));
 
                 X9ECPoint G = ConfigureBasepoint(curve,